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WO2021172420A1 - Curable resin composition, cured film, laminate, cured film production method and semiconductor device - Google Patents

Curable resin composition, cured film, laminate, cured film production method and semiconductor device Download PDF

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Publication number
WO2021172420A1
WO2021172420A1 PCT/JP2021/007075 JP2021007075W WO2021172420A1 WO 2021172420 A1 WO2021172420 A1 WO 2021172420A1 JP 2021007075 W JP2021007075 W JP 2021007075W WO 2021172420 A1 WO2021172420 A1 WO 2021172420A1
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Prior art keywords
group
preferable
compound
resin composition
acid
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Application number
PCT/JP2021/007075
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French (fr)
Japanese (ja)
Inventor
大輔 浅川
Original Assignee
富士フイルム株式会社
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Publication date
Application filed by 富士フイルム株式会社 filed Critical 富士フイルム株式会社
Priority to CN202180016937.6A priority Critical patent/CN115190891B/en
Priority to JP2022503684A priority patent/JPWO2021172420A1/ja
Priority to KR1020227029396A priority patent/KR20220134583A/en
Publication of WO2021172420A1 publication Critical patent/WO2021172420A1/en
Priority to JP2024038234A priority patent/JP2024083351A/en

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00Processes of polymerisation
    • C08F2/46Polymerisation initiated by wave energy or particle radiation
    • C08F2/48Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
    • C08F2/50Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light with sensitising agents
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/08Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
    • C08F290/14Polymers provided for in subclass C08G
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/22Polybenzoxazoles
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/01Hydrocarbons
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/04Oxygen-containing compounds
    • C08K5/05Alcohols; Metal alcoholates
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L79/00Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/04Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08L79/08Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • G03F7/0042Photosensitive materials with inorganic or organometallic light-sensitive compounds not otherwise provided for, e.g. inorganic resists
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • G03F7/027Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds
    • G03F7/032Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders
    • G03F7/037Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds with binders the binders being polyamides or polyimides
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/004Photosensitive materials
    • G03F7/039Macromolecular compounds which are photodegradable, e.g. positive electron resists
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F7/00Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
    • G03F7/20Exposure; Apparatus therefor
    • G03F7/2002Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
    • G03F7/2004Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image characterised by the use of a particular light source, e.g. fluorescent lamps or deep UV light

Definitions

  • the present invention relates to a curable resin composition, a cured film, a laminate, a method for producing a cured film, and a semiconductor device.
  • Resins such as polyimide, polybenzoxazole, and polyamide-imide have excellent heat resistance and insulating properties, and are therefore applied to various applications.
  • the above application is not particularly limited, and examples of a semiconductor device for mounting include use as a material for an insulating film and a sealing material, or as a protective film. It is also used as a base film and coverlay for flexible substrates.
  • resins such as polyimide, polybenzoxazole, and polyamide-imide are cured containing at least one resin selected from the group consisting of polyimide precursors, polybenzoxazole precursors, and polyamide-imide precursors.
  • a curable resin composition is applied to a base material by, for example, coating to form a photosensitive film, and then exposed, developed, heated or the like as necessary to apply the cured product onto the base material. Can be formed.
  • the polyimide precursor, the polybenzoxazole precursor, and the polyamide-imide precursor are cyclized by, for example, heating, and become polyimide, polybenzoxazole, and polyamide-imide in the cured product, respectively.
  • the curable resin composition can be applied by a known coating method or the like, for example, the degree of freedom in designing the shape, size, application position, etc. of the applied curable resin composition at the time of application is high. It can be said that it has excellent manufacturing adaptability.
  • the industrial application development of the above-mentioned curable resin composition is expected more and more.
  • Patent Document 1 describes a polyimide precursor having a specific structure: 100 parts by mass, a photopolymerization initiator: 1 to 20 parts by mass, and a functional group selected from the group consisting of a hydroxyl group, an ether group and an ester group.
  • a negative photosensitive resin composition containing one or more monocarboxylic acid compounds having 2 to 30 carbon atoms: 0.01 to 10 parts by mass is described.
  • Improvement of resolution is required in the formation of a pattern made of a curable resin composition.
  • the present invention relates to a curable resin composition having excellent resolution at the time of pattern formation, a cured film obtained by curing the curable resin composition, a laminate containing the cured film, a method for producing the cured film, and a method for producing the cured film.
  • An object of the present invention is to provide a semiconductor device including the cured film or the laminate.
  • At least one resin selected from the group, as well as Contains organometallic complexes The total molar amount of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor is 0.08 to 1.68 mmol / g.
  • the molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor is 0.22 to 3.97 mmol / g.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamide-imide precursor is 0.062 to 1.186 mmol / g.
  • Curable resin composition. ⁇ 2> The curable resin composition according to ⁇ 1>, further comprising a photopolymerization initiator.
  • ⁇ 4> The curable resin composition according to any one of ⁇ 1> to ⁇ 3>, further comprising a cross-linking agent.
  • ⁇ 5> The curable resin composition according to any one of ⁇ 1> to ⁇ 4>, wherein the organometallic complex is a metallocene compound.
  • ⁇ 6> The curability according to any one of ⁇ 1> to ⁇ 5>, wherein the metal contained in the organometallic complex is at least one metal selected from the group consisting of titanium, zirconium and hafnium.
  • Resin composition ⁇ 7>
  • the curable resin composition according to any one of ⁇ 1> to ⁇ 6>, wherein the organometallic complex has a photoradical polymerization initiation ability.
  • ⁇ 8> The curable resin composition according to any one of ⁇ 1> to ⁇ 7>, which is used for forming a photosensitive film to be used for negative development.
  • ⁇ 9> The curable resin composition according to any one of ⁇ 1> to ⁇ 8>, which is used for forming an interlayer insulating film for a rewiring layer.
  • ⁇ 10> A cured film obtained by curing the curable resin composition according to any one of ⁇ 1> to ⁇ 9>.
  • ⁇ 11> A laminate containing two or more layers of the cured film according to ⁇ 10> and containing a metal layer between any of the cured films.
  • a method for producing a cured film which comprises a film forming step of applying the curable resin composition according to any one of ⁇ 1> to ⁇ 9> to a substrate to form a film.
  • the method for producing a cured film according to ⁇ 12> which comprises an exposure step of exposing the film and a developing step of developing the film.
  • the method for producing a cured film according to ⁇ 13> wherein the exposure light used for the above exposure includes light having a wavelength of 405 nm.
  • ⁇ 16> The method for producing a cured film according to any one of ⁇ 12> to ⁇ 15>, which comprises a heating step of heating the film at 50 to 450 ° C.
  • a semiconductor device comprising the cured film according to ⁇ 10> or the laminate according to ⁇ 11>.
  • a curable resin composition having excellent resolution at the time of pattern formation a cured film obtained by curing the curable resin composition, a laminate containing the cured film, a method for producing the cured film, and the like. And a semiconductor device including the cured film or the laminate is provided.
  • the present invention is not limited to the specified embodiments.
  • the numerical range represented by the symbol "-" means a range including the numerical values before and after "-" as the lower limit value and the upper limit value, respectively.
  • the term "process” means not only an independent process but also a process that cannot be clearly distinguished from other processes as long as the desired action of the process can be achieved.
  • the notation not describing substitution and non-substitution includes a group having a substituent (atomic group) as well as a group having no substituent (atomic group).
  • the "alkyl group” includes not only an alkyl group having no substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group).
  • exposure includes not only exposure using light but also exposure using particle beams such as an electron beam and an ion beam. Examples of the light used for exposure include the emission line spectrum of a mercury lamp, far ultraviolet rays typified by an excimer laser, extreme ultraviolet rays (EUV light), X-rays, active rays such as electron beams, or radiation.
  • (meth) acrylate means both “acrylate” and “methacrylate”, or either
  • (meth) acrylic means both “acrylic” and “methacrylic", or
  • (meth) acryloyl means both “acryloyl” and “methacrylic", or either.
  • Me in the structural formula represents a methyl group
  • Et represents an ethyl group
  • Bu represents a butyl group
  • Ph represents a phenyl group.
  • the total solid content means the total mass of all the components of the composition excluding the solvent.
  • the solid content concentration is the mass percentage of other components excluding the solvent with respect to the total mass of the composition.
  • the weight average molecular weight (Mw) and the number average molecular weight (Mn) are defined as polystyrene-equivalent values according to gel permeation chromatography (GPC measurement) unless otherwise specified.
  • GPC measurement gel permeation chromatography
  • the weight average molecular weight (Mw) and the number average molecular weight (Mn) for example, HLC-8220GPC (manufactured by Tosoh Corporation) is used, and guard columns HZ-L, TSKgel Super HZM-M, and TSKgel are used as columns. It can be obtained by using Super HZ4000, TSKgel Super HZ3000, and TSKgel Super HZ2000 (manufactured by Tosoh Corporation).
  • the direction in which the layers are stacked on the base material is referred to as "upper", or if there is a photosensitive film, the direction from the base material to the photosensitive film is referred to as “upper”.
  • the opposite direction is referred to as "down”.
  • the composition may contain, as each component contained in the composition, two or more compounds corresponding to the component.
  • the content of each component in the composition means the total content of all the compounds corresponding to the component.
  • the temperature is 23 ° C.
  • the atmospheric pressure is 101,325 Pa (1 atm)
  • the relative humidity is 50% RH.
  • the combination of preferred embodiments is a more preferred embodiment.
  • the curable resin composition of the present invention comprises a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and at least one of a cyclic imide structure and a cyclic isoimide structure.
  • the total molar content of the cyclic isoimide structure is 0.08 to 1.68 mmol / g, and the molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor is 0.22 to 3 It is .97 mmol / g, and the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamideimide precursor is 0.062 to 1.186 mmol / g.
  • the curable resin composition of the present invention is preferably used for forming a photosensitive film to be subjected to exposure and development, and is used for forming a film to be subjected to exposure and development using a developing solution containing an organic solvent. Is preferable. Further, the curable resin composition of the present invention is preferably used for forming a photosensitive film to be used for negative development.
  • the negative type development means the development in which the non-exposed part is removed by the development in the exposure and the development
  • the positive type development means the development in which the exposed part is removed by the development.
  • the exposure method, the developer, and the developing method include, for example, the exposure method described in the exposure step in the description of the method for producing a cured film described later, the developer and the developing method described in the developing step. Is used.
  • the curable resin composition of the present invention is excellent in exposure sensitivity and chemical resistance of the obtained pattern.
  • the mechanism by which the above effect is obtained is unknown, but it is presumed as follows.
  • an organic titanium compound or the like is added to the curable resin composition.
  • the organometallic complex may aggregate in the film and the resolution may decrease.
  • a resin containing a cyclic imide structure, a cyclic isoimide structure or a benzoxazole structure at a specific content is used as the resin in the resin composition. It is considered that the organometallic complex contained in the composition is dispersed in the film in a nearly uniform state by the strong interaction between these structures and the organometallic complex. As a result, it is presumed that the resin composition of the present invention has excellent resolution.
  • the curable resin composition of the present invention comprises a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and at least one of a cyclic imide structure and a cyclic isoimide structure. It contains at least one resin (specific resin) selected from the group consisting of polyamide-imide precursors containing.
  • the curable resin composition of the present invention preferably contains, as the specific resin, a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure. Further, the specific resin preferably has a radically polymerizable group.
  • the curable resin composition preferably contains a photoradical polymerization initiator described later as a photosensitizer, contains a photoradical polymerization initiator described below as a photosensitizer, and is described later. It is more preferable to contain the radical cross-linking agent described above, and it is further preferable to contain the photoradical polymerization initiator described below as the photosensitizer, the radical cross-linking agent described below, and the sensitizer described below. From such a curable resin composition, for example, a negative photosensitive film is formed. Further, the specific resin may have a polarity converting group such as an acid-decomposable group.
  • the curable resin composition preferably contains a photoacid generator described later as a photosensitizer. From such a curable resin composition, for example, a chemically amplified positive type photosensitive film or a negative type photosensitive film is formed.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure in 1 g of the polyimide precursor is 0.08 to 1.68 mmol from the viewpoint of resolution.
  • / G preferably 0.10 to 1.00 mmol / g, more preferably 0.12 to 0.80 mmol / g, and further preferably 0.15 to 0.60 mmol / g. preferable.
  • the polyimide precursor preferably contains at least a cyclic imide structure.
  • the polyimide precursor may have at least one of a cyclic imide structure and a cyclic isoimide structure in the side chain, but preferably has at least one in the main chain.
  • the main chain of a resin means a relatively longest molecular chain in a molecule.
  • the resin composition contains a polybenzoxazole precursor as a specific resin
  • the molar content of the benzoxazole structure in 1 g of the polybenzoxazole precursor is 0.22 to 3.97 mmol / from the viewpoint of resolution. It is g, preferably 0.25 to 3.00 mmol / g, more preferably 0.28 to 2.50 mmol / g, and even more preferably 0.30 to 2.00 mmol / g. ..
  • the polybenzoxazole precursor may have a benzoxazole structure in the side chain, but is preferably in the main chain.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure in 1 g of the above-mentioned polyamide-imide precursor is 0.062 to 1 from the viewpoint of resolution. .186 mmol / g, preferably 0.070 to 1.000 mmol / g, more preferably 0.080 to 0.800 mmol / g, and 0.090 to 0.700 mmol / g. Is more preferable.
  • the polyamide-imide precursor preferably contains at least a cyclic imide structure.
  • the polyamide-imide precursor may have at least one of a cyclic imide structure and a cyclic isoimide structure in the side chain, but preferably has at least one in the main chain.
  • polyimide precursor The type of the polyimide precursor used in the present invention is not particularly specified, but it is preferable that the polyimide precursor contains a repeating unit represented by the following formula (2).
  • a 1 and A 2 independently represent an oxygen atom or NH
  • R 111 represents a divalent organic group
  • R 115 represents a tetravalent organic group
  • R 113 represents a tetravalent organic group
  • R 114 independently represent a hydrogen atom or a monovalent organic group.
  • a 1 and A 2 in the formula (2) independently represent an oxygen atom or NH, and an oxygen atom is preferable.
  • R 111 in the formula (2) represents a divalent organic group.
  • the divalent organic group include a linear or branched aliphatic group, a cyclic aliphatic group and a group containing an aromatic group, and a linear or branched aliphatic group having 2 to 20 carbon atoms and a carbon number of carbon atoms.
  • a cyclic aliphatic group of 6 to 20, an aromatic group having 6 to 20 carbon atoms, or a group composed of a combination thereof is preferable, and a group containing an aromatic group having 6 to 20 carbon atoms is more preferable.
  • a group represented by -Ar-L-Ar- is exemplified.
  • Ar is an aromatic group independently
  • L is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be substituted with a fluorine atom, —O—, ⁇ CO ⁇ , —S—. , -SO 2- or NHCO-, or a group consisting of a combination of two or more of the above.
  • R 111 is preferably derived from diamine.
  • the diamine used for producing the polyimide precursor include linear or branched aliphatic, cyclic aliphatic or aromatic diamines. Only one kind of diamine may be used, or two or more kinds of diamines may be used. Specifically, a linear or branched aliphatic group having 2 to 20 carbon atoms, a cyclic aliphatic group having 6 to 20 carbon atoms, an aromatic group having 6 to 20 carbon atoms, or a group consisting of a combination thereof.
  • the diamine containing the above is preferable, and the diamine containing a group consisting of an aromatic group having 6 to 20 carbon atoms is more preferable.
  • aromatic groups include:
  • diamine examples include 1,2-diaminoethane, 1,2-diaminopropane, 1,3-diaminopropane, 1,4-diaminobutane and 1,6-diaminohexane; 1,2- or 1 , 3-Diaminocyclopentane, 1,2-, 1,3- or 1,4-diaminocyclohexane, 1,2-, 1,3- or 1,4-bis (aminomethyl) cyclohexane, bis- (4-) Aminocyclohexyl) methane, bis- (3-aminocyclohexyl) methane, 4,4'-diamino-3,3'-dimethylcyclohexylmethane and isophoronediamine; m- or p-phenylenediamine, diaminotoluene, 4,4'- Or 3,3'-diaminobiphenyl, 4,4'-diaminodiphenyl;
  • diamines (DA-1) to (DA-18) described in paragraphs 0030 to 0031 of International Publication No. 2017/0385898 are also preferable.
  • a diamine having two or more alkylene glycol units in the main chain described in paragraphs 0032 to 0034 of International Publication No. 2017/0385898 is also preferably used.
  • R 111 is preferably represented by —Ar—L—Ar— from the viewpoint of the flexibility of the obtained organic film.
  • Ar is an aromatic group independently, and L is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be substituted with a fluorine atom, —O—, ⁇ CO ⁇ , —S—. , -SO 2- or NHCO-, or a group consisting of a combination of two or more of the above.
  • Ar is a phenylene group is preferably, L is an aliphatic hydrocarbon group having a fluorine atom are carbon atoms and optionally 1 or substituted by 2, -O -, - CO - , - S- or SO 2 - are preferred.
  • the aliphatic hydrocarbon group here is preferably an alkylene group.
  • R 111 is preferably a divalent organic group represented by the following formula (51) or formula (61) from the viewpoint of i-ray transmittance.
  • a divalent organic group represented by the formula (61) is more preferable.
  • Equation (51) In formula (51), R 50 to R 57 are independently hydrogen atoms, fluorine atoms or monovalent organic groups, and at least one of R 50 to R 57 is a fluorine atom, methyl group or trifluoro. It is a methyl group.
  • the monovalent organic group of R 50 to R 57 includes an unsubstituted alkyl group having 1 to 10 carbon atoms (preferably 1 to 6 carbon atoms) and 1 to 10 carbon atoms (preferably 1 to 6 carbon atoms). Examples thereof include an alkyl fluoride group.
  • R 58 and R 59 are independently fluorine atoms or trifluoromethyl groups, respectively.
  • Examples of the diamine compound giving the structure of the formula (51) or (61) include 2,2'-dimethylbenzidine, 2,2'-bis (trifluoromethyl) -4,4'-diaminobiphenyl, 2,2'-. Examples thereof include bis (fluoro) -4,4'-diaminobiphenyl and 4,4'-diaminooctafluorobiphenyl. These may be used alone or in combination of two or more.
  • diamines can also be preferably used.
  • R 115 in the formula (2) represents a tetravalent organic group.
  • a tetravalent organic group containing an aromatic ring is preferable, and a group represented by the following formula (5) or formula (6) is more preferable.
  • * independently represents a binding site with another structure.
  • R 112 is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be replaced with a single bond or a fluorine atom, —O—, —CO ⁇ , —S—, —SO.
  • 2- , NHCO-, and a group selected from a combination thereof are preferable, and a single bond, an alkylene group having 1 to 3 carbon atoms which may be substituted with a fluorine atom, -O-, -CO. More preferably, it is a group selected from-, -S- and SO 2- , -CH 2- , -C (CF 3 ) 2- , -C (CH 3 ) 2-, -O-, -CO. It is more preferably a divalent group selected from the group consisting of-, -S- and SO 2-.
  • R 115 include tetracarboxylic acid residues remaining after removal of the anhydride group from the tetracarboxylic dianhydride. Only one type of tetracarboxylic dianhydride may be used, or two or more types may be used.
  • the tetracarboxylic dianhydride is preferably represented by the following formula (O).
  • R 115 represents a tetravalent organic group.
  • a preferred range of R 115 has the same meaning as R 115 in formula (2), and preferred ranges are also the same.
  • tetracarboxylic dianhydride examples include pyromellitic dianhydride (PMDA), 3,3', 4,4'-biphenyltetracarboxylic dianhydride, 3,3', 4,4'-.
  • PMDA pyromellitic dianhydride
  • 3,3', 4,4'-biphenyltetracarboxylic dianhydride 3,3', 4,4'-.
  • tetracarboxylic dianhydrides (DAA-1) to (DAA-5) described in paragraph 0038 of International Publication No. 2017/038598 are also mentioned as preferable examples.
  • R 111 and R 115 has an OH group. More specifically, as R 111 , a residue of a bisaminophenol derivative can be mentioned.
  • R 113 and R 114 each independently represent a hydrogen atom or a monovalent organic group, and it is preferable that at least one of R 113 and R 114 contains a polymerizable group, and both contain a polymerizable group.
  • the polymerizable group is a group capable of a cross-linking reaction by the action of heat, radicals, etc., and a radical polymerizable group is preferable.
  • the polymerizable group examples include a group having an ethylenically unsaturated bond, an alkoxymethyl group, a hydroxymethyl group, an acyloxymethyl group, an epoxy group, an oxetanyl group, a benzoxazolyl group, a blocked isocyanate group, a methylol group and an amino.
  • the group is mentioned.
  • a group having an ethylenically unsaturated bond is preferable.
  • Examples of the group having an ethylenically unsaturated bond include a vinyl group, a (meth) allyl group, a group represented by the following formula (III), and the like, and a group represented by the following formula (III) is preferable.
  • R200 represents a hydrogen atom or a methyl group, and a hydrogen atom is preferable.
  • * represents a binding site with another structure.
  • R 201 represents an alkylene group having 2 to 12 carbon atoms, -CH 2 CH (OH) CH 2- or a polyalkyleneoxy group. Examples of suitable R 201 are ethylene group, propylene group, trimethylene group, tetramethylene group, 1,2-butandyl group, 1,3-butandyl group, pentamethylene group, hexamethylene group, octamethylene group, dodecamethylene group.
  • polyalkyleneoxy group refers to a group in which two or more alkyleneoxy groups are directly bonded.
  • the alkylene groups in the plurality of alkyleneoxy groups contained in the polyalkyleneoxy group may be the same or different.
  • the arrangement of the alkyleneoxy groups in the polyalkyleneoxy group may be a random sequence or a sequence having a block. It may be an array having a pattern such as alternating.
  • the carbon number of the alkylene group (including the carbon number of the substituent when the alkylene group has a substituent) is preferably 2 or more, more preferably 2 to 10, and 2 to 6. Is more preferable, 2 to 5 is more preferable, 2 to 4 is more preferable, 2 or 3 is particularly preferable, and 2 is most preferable.
  • the said alkylene group may have a substituent.
  • Preferred substituents include alkyl groups, aryl groups, halogen atoms and the like.
  • the number of alkyleneoxy groups contained in the polyalkyleneoxy group is preferably 2 to 20, more preferably 2 to 10, and even more preferably 2 to 6.
  • the polyalkyleneoxy group includes a polyethyleneoxy group, a polypropyleneoxy group, a polytrimethyleneoxy group, a polytetramethyleneoxy group, or a plurality of ethyleneoxy groups and a plurality of propylenes from the viewpoint of solvent solubility and solvent resistance.
  • a group in which an oxy group is bonded is preferable, a polyethyleneoxy group or a polypropyleneoxy group is more preferable, and a polyethyleneoxy group is further preferable.
  • the ethyleneoxy groups and the propyleneoxy groups may be randomly arranged or may be arranged by forming a block. , Alternate or the like may be arranged in a pattern. The preferred embodiment of the number of repetitions of the ethyleneoxy group and the like in these groups is as described above.
  • R 113 and R 114 are independently hydrogen atoms or monovalent organic groups.
  • the monovalent organic group include an aromatic group and an aralkyl group in which an acidic group is bonded to one, two or three carbons constituting the aryl group, preferably one.
  • Specific examples thereof include an aromatic group having an acidic group having 6 to 20 carbon atoms and an aralkyl group having an acidic group having 7 to 25 carbon atoms. More specifically, a phenyl group having an acidic group and a benzyl group having an acidic group can be mentioned.
  • the acidic group is preferably an OH group. It is also more preferable that R 113 or R 114 is a hydrogen atom, 2-hydroxybenzyl, 3-hydroxybenzyl and 4-hydroxybenzyl.
  • R 113 or R 114 is preferably a monovalent organic group.
  • the monovalent organic group preferably contains a linear or branched alkyl group, a cyclic alkyl group, or an aromatic group, and an alkyl group substituted with an aromatic group is more preferable.
  • the alkyl group preferably has 1 to 30 carbon atoms.
  • the alkyl group may be linear, branched or cyclic.
  • linear or branched alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, a tetradecyl group and an octadecyl group.
  • Isobutyl group isobutyl group, sec-butyl group, t-butyl group, 1-ethylpentyl group, 2-ethylhexyl group 2- (2- (2-methoxyethoxy) ethoxy) ethoxy group, 2- (2- (2) -Ethoxyethoxy) ethoxy) ethoxy) ethoxy group, 2- (2- (2- (2-methoxyethoxy) ethoxy) ethoxy) ethoxy group, and 2- (2- (2- (2- (2-ethoxyethoxy) ethoxy) ethoxy) Ethoxy group is mentioned.
  • the cyclic alkyl group may be a monocyclic cyclic alkyl group or a polycyclic cyclic alkyl group.
  • Examples of the monocyclic cyclic alkyl group include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group and a cyclooctyl group.
  • Examples of the polycyclic cyclic alkyl group include an adamantyl group, a norbornyl group, a boronyl group, a phenyl group, a decahydronaphthyl group, a tricyclodecanyl group, a tetracyclodecanyl group, a camphoroyl group, a dicyclohexyl group and a pinenyl group. Can be mentioned. Of these, the cyclohexyl group is most preferable from the viewpoint of achieving both high sensitivity. Further, as the alkyl group substituted with an aromatic group, a linear alkyl group substituted with an aromatic group described later is preferable.
  • aromatic group examples include substituted or unsubstituted benzene ring, naphthalene ring, pentalene ring, inden ring, azulene ring, heptalene ring, indacene ring, perylene ring, pentacene ring, acenaphthene ring, phenanthrene ring, and anthracene.
  • the benzene ring is most preferred.
  • R 113 is a hydrogen atom or R 114 is a hydrogen atom
  • R 113 is a hydrogen atom
  • R 114 is a hydrogen atom
  • the polyimide precursor forms a salt with a tertiary amine compound having an ethylenically unsaturated bond.
  • the tertiary amine compound having such an ethylenically unsaturated bond include N, N-dimethylaminopropyl methacrylate.
  • At least one of R 113 and R 114 may be a polarity converting group such as an acid degradable group.
  • the acid-degradable group is not particularly limited as long as it is decomposed by the action of an acid to produce an alkali-soluble group such as a phenolic hydroxy group or a carboxy group, but is not particularly limited, but is an acetal group, a ketal group, a silyl group, or a silyl ether group.
  • a tertiary alkyl ester group or the like is preferable, and an acetal group is more preferable from the viewpoint of exposure sensitivity.
  • the acid-degradable group examples include tert-butoxycarbonyl group, isopropoxycarbonyl group, tetrahydropyranyl group, tetrahydrofuranyl group, ethoxyethyl group, methoxyethyl group, ethoxymethyl group, trimethylsilyl group and tert-butoxycarbonylmethyl.
  • examples include a group, a trimethylsilyl ether group and the like. From the viewpoint of exposure sensitivity, an ethoxyethyl group or a tetrahydrofuranyl group is preferable.
  • the polyimide precursor has a fluorine atom in the structural unit.
  • the fluorine atom content in the polyimide precursor is preferably 10% by mass or more, and preferably 20% by mass or less.
  • the polyimide precursor may be copolymerized with an aliphatic group having a siloxane structure.
  • the diamine component an embodiment in which bis (3-aminopropyl) tetramethyldisiloxane, bis (p-aminophenyl) octamethylpentasiloxane, or the like is used can be mentioned.
  • the repeating unit represented by the formula (2) is preferably the repeating unit represented by the formula (2-A). That is, it is preferable that at least one of the polyimide precursors used in the present invention is a precursor having a repeating unit represented by the formula (2-A). With such a structure, the width of the exposure latitude can be further widened. Equation (2-A) In formula (2-A), A 1 and A 2 represent oxygen atoms, R 111 and R 112 each independently represent a divalent organic group, and R 113 and R 114 each independently. Representing a hydrogen atom or a monovalent organic group , at least one of R 113 and R 114 is a group containing a polymerizable group, and it is preferable that both are polymerizable groups.
  • a 1, A 2, R 111 , R 113 and R 114 each independently have the same meaning as A 1, A 2, R 111 , R 113 and R 114 in formula (2), and preferred ranges are also the same .
  • R 112 has the same meaning as R 112 in formula (5), and preferred ranges are also the same.
  • the polyimide precursor may contain one type of repeating structural unit represented by the formula (2), but may contain two or more types. Further, it may contain a structural isomer of a repeating unit represented by the formula (2). Needless to say, the polyimide precursor may contain other types of repeating structural units in addition to the repeating unit of the above formula (2).
  • the polyimide precursor is selected from the group consisting of repeating units represented by any of the following formulas (2-1) to (2-6) as a repeating unit having at least one of a cyclic imide structure and a cyclic isoimide structure. It is preferable to include at least one repeating unit, and the repeating unit represented by the following formula (2-1), the repeating unit represented by the following formula (2-2), and the following formula (2-3). It is more preferable to include at least one repeating unit selected from the group consisting of repeating units represented by.
  • R 111 , R 113 , R 114 , R 115 , A 1 and A 2 are R 111 , R 113 and R in the above formula (2), respectively. It is synonymous with 114 , R 115 , A 1 and A 2 , and the preferred embodiment is also the same.
  • the total content of the repeating units represented by any of the formulas (2-1) to (2-6) is such that the total content of the cyclic imide structure and the cyclic isoimide structure in the polyimide precursor is within the above range. It may be the amount.
  • An embodiment in which the amount is 50 mol% or more of all repeating units can be mentioned.
  • the total content is more preferably 70 mol% or more, further preferably 90 mol% or more, and particularly preferably more than 90 mol%.
  • the upper limit of the total content is not particularly limited, and all the repeating units in the polyimide precursor except the terminal are the repeating units represented by the formula (2) and the formulas (2-1) to (2-). It may be any of the repeating units represented by any of 6).
  • the weight average molecular weight (Mw) of the polyimide precursor is preferably 18,000 to 30,000, more preferably 20,000 to 27,000, and even more preferably 22,000 to 25,000.
  • the number average molecular weight (Mn) is preferably 7,200 to 14,000, more preferably 8,000 to 12,000, and even more preferably 9,200 to 11,200.
  • the degree of dispersion of the molecular weight of the polyimide precursor is preferably 2.5 or more, more preferably 2.7 or more, and further preferably 2.8 or more.
  • the upper limit of the dispersity of the molecular weight of the polyimide precursor is not particularly determined, but for example, 4.5 or less is preferable, 4.0 or less is more preferable, 3.8 or less is further preferable, and 3.2 or less is further preferable. Preferably, 3.1 or less is even more preferable, 3.0 or less is even more preferable, and 2.95 or less is particularly preferable.
  • the degree of molecular weight dispersion is a value calculated by weight average molecular weight / number average molecular weight.
  • the polybenzoxazole precursor used in the present invention is not particularly defined for its structure and the like, but preferably contains a repeating unit represented by the following formula (3).
  • R 121 represents a divalent organic group
  • R 122 represents a tetravalent organic group
  • R 123 and R 124 independently represent a hydrogen atom or a monovalent organic group. show.
  • R 123 and R 124 are synonymous with R 113 in the formula (2), respectively, and the preferable range is also the same. That is, at least one is preferably a polymerizable group.
  • R 121 represents a divalent organic group.
  • the divalent organic group a group containing at least one of an aliphatic group and an aromatic group is preferable.
  • the aliphatic group a linear aliphatic group is preferable.
  • R 121 is preferably a dicarboxylic acid residue. Only one type of dicarboxylic acid residue may be used, or two or more types may be used.
  • a dicarboxylic acid residue a dicarboxylic acid containing an aliphatic group and a dicarboxylic acid residue containing an aromatic group are preferable, and a dicarboxylic acid residue containing an aromatic group is more preferable.
  • a dicarboxylic acid containing an aliphatic group a dicarboxylic acid containing a linear or branched (preferably straight chain) aliphatic group is preferable, and a linear or branched (preferably straight chain) aliphatic group and two -COOH are preferable.
  • a dicarboxylic acid composed of is more preferable.
  • the number of carbon atoms of the linear or branched (preferably linear) aliphatic group is preferably 2 to 30, more preferably 2 to 25, further preferably 3 to 20, and 4 to 20. It is more preferably 15, and particularly preferably 5 to 10.
  • the linear aliphatic group is preferably an alkylene group.
  • dicarboxylic acid containing a linear aliphatic group examples include malonic acid, dimethylmalonic acid, ethylmalonic acid, isopropylmalonic acid, di-n-butylmalonic acid, succinic acid, tetrafluorosuccinic acid, methylsuccinic acid, 2, 2-Dimethylsuccinic acid, 2,3-dimethylsuccinic acid, dimethylmethylsuccinic acid, glutaric acid, hexafluoroglutaric acid, 2-methylglutaric acid, 3-methylglutaric acid, 2,2-dimethylglutaric acid, 3,3-Dimethylglutaric acid, 3-ethyl-3-methylglutaric acid, adipic acid, octafluoroadiponic acid, 3-methyladiponic acid, pimellinic acid, 2,2,6,6-tetramethylpimelic acid, suberin Acid, dodecafluorosveric acid, azelaic acid, sebacic acid, hex
  • Z is a hydrocarbon group having 1 to 6 carbon atoms, and n is an integer of 1 to 6).
  • dicarboxylic acid containing an aromatic group a dicarboxylic acid having the following aromatic groups is preferable, and a dicarboxylic acid consisting of only the following aromatic groups and two -COOH is more preferable.
  • A is -CH 2- , -O-, -S-, -SO 2- , -CO-, -NHCO-, -C (CF 3 ) 2- , and -C (CH 3 ) 2- Represents a divalent group selected from the group consisting of, and each independently represents a binding site with another structure.
  • dicarboxylic acid containing an aromatic group examples include 4,4'-carbonyldibenzoic acid, 4,4'-dicarboxydiphenyl ether, and terephthalic acid.
  • R 121 may have a structure derived from a dicarboxylic acid or a dicarboxylic acid halide containing a benzoxazole structure.
  • a benzoxazole structure is introduced into the benzoxazole precursor. Examples of the above structure include the following structures. In the following structures, * independently represents a binding site with another structure.
  • R 122 represents a tetravalent organic group.
  • the tetravalent organic group has the same meaning as R 115 in the above formula (2), and the preferable range is also the same.
  • R 122 is also preferably a group derived from a bisaminophenol derivative, and examples of the group derived from the bisaminophenol derivative include 3,3'-diamino-4,4'-dihydroxybiphenyl, 4,4'.
  • bisaminophenol derivatives having the following aromatic groups are preferable.
  • X 1 represents -O-, -S-, -C (CF 3 ) 2- , -CH 2- , -SO 2- , -NHCO-, and * and # represent other structures, respectively.
  • R represents a hydrogen atom or a monovalent substituent, preferably a hydrogen atom or a hydrocarbon group, and more preferably a hydrogen atom or an alkyl group. Further, it is also preferable that R 122 has a structure represented by the above formula.
  • any two of the four * and # in total are the binding sites with the nitrogen atom to which R 122 in the formula (3) is bonded, and preferably R 122 in another 2 Exemplary ethynylphenylbiadamantane derivatives (3) is a binding site to the oxygen atom bonding, two * is a bond sites with an oxygen atom R 122 are attached in the formula (3) , And two # are the binding sites with the nitrogen atom to which R 122 in the formula (3) is bound, or two * are the binding sites with the nitrogen atom to which R 122 in the formula (3) is bound.
  • the site is a site and the two #s are the binding sites with the oxygen atom to which R 122 in the formula (3) is bonded, and the two * are the oxygen to which the R 122 in the formula (3) is bonded. It is more preferable that the binding site is a binding site with an atom and the two #s are the binding sites with a nitrogen atom to which R 122 in the formula (3) is bonded.
  • R 1 is a hydrogen atom, an alkylene, a substituted alkylene, -O-, -S-, -SO 2- , -CO-, -NHCO-, a single bond, or the following formula (A-). It is an organic group selected from the group of sc).
  • R 2 is any one of a hydrogen atom, an alkyl group, an alkoxy group, an acyloxy group, and a cyclic alkyl group, and may be the same or different.
  • R 3 is any of a hydrogen atom, a linear or branched alkyl group, an alkoxy group, an acyloxy group, and a cyclic alkyl group, and may be the same or different.
  • the ortho position of the phenolic hydroxy groups i.e., to have also substituent R 3 is believed to closer the distance of the carbonyl carbon and hydroxy group of the amide bond, at a low temperature It is particularly preferable in that the effect of increasing the cyclization rate when cured is further enhanced.
  • R 2 is an alkyl group and R 3 is an alkyl group has high transparency to i-rays and a high cyclization rate when cured at a low temperature. The effect can be maintained, which is preferable.
  • R 1 is an alkylene or a substituted alkylene.
  • the alkylene and the substituted alkylene according to R 1 include linear or branched alkyl groups having 1 to 8 carbon atoms, among which -CH 2- and -CH (CH 3 ).
  • -, -C (CH 3 ) 2 has sufficient solubility in a solvent while maintaining the effects of high transparency to i-rays and high cyclization rate when cured at low temperature. It is more preferable in that an excellent polybenzoxazole precursor can be obtained.
  • the polybenzoxazole precursor may contain other types of repeating structural units in addition to the repeating unit of the above formula (3).
  • the polybenzoxazole precursor is a repeating unit having a benzoxazole structure, which is a repeating unit represented by the following formula (3-1), a repeating unit represented by the following formula (3-2), and the following formula (3). It is preferable to include at least one repeating unit selected from the group consisting of the repeating units represented by -3). Equation (3-1) in to Formula (3-3), R 121, R 122, respectively R 123 and R 124 has the same meaning as R 121, R 122, R 123 and R 124 in formula (3) , The preferred embodiment is also the same.
  • the content of the repeating unit represented by the formula (3-1), the repeating unit represented by the formula (3-2), and the repeating unit represented by the formula (3-3) is a polybenzoxazole precursor.
  • the content of the benzoxazole structure in the above range may be set to the above range.
  • the polybenzoxazole precursor preferably contains a diamine residue represented by the following formula (SL) as another type of repeating structural unit because it can suppress the occurrence of warpage due to ring closure.
  • SL diamine residue represented by the following formula (SL) as another type of repeating structural unit because it can suppress the occurrence of warpage due to ring closure.
  • Z has an a structure and a b structure
  • R 1s is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms
  • R 2s is a hydrocarbon group having 1 to 10 carbon atoms.
  • at least one of R 3s, R 4s , R 5s , and R 6s is an aromatic group
  • the rest are hydrogen atoms or organic groups having 1 to 30 carbon atoms, which may be the same or different.
  • the polymerization of the a structure and the b structure may be block polymerization or random polymerization.
  • the mol% of the Z portion is 5 to 95 mol% for the a structure, 95 to 5 mol% for the b structure, and 100 mol% for a + b.
  • preferred Z includes those in which R 5s and R 6s in the b structure are phenyl groups.
  • the molecular weight of the structure represented by the formula (SL) is preferably 400 to 4,000, more preferably 500 to 3,000.
  • the tetracarboxylic acid residue remaining after removal of the anhydride group from the tetracarboxylic dianhydride is used as the repeating structural unit. It is also preferable to include it. Examples of such a tetracarboxylic acid residue include the example of R 115 in the formula (2).
  • the weight average molecular weight (Mw) of the polybenzoxazole precursor is preferably 18,000 to 30,000, more preferably 20,000 to 29,000, and further, when used in the compositions described below. It is preferably 22,000 to 28,000.
  • the number average molecular weight (Mn) is preferably 7,200 to 14,000, more preferably 8,000 to 12,000, and even more preferably 9,200 to 11,200.
  • the degree of dispersion of the molecular weight of the polybenzoxazole precursor is preferably 1.4 or more, more preferably 1.5 or more, and further preferably 1.6 or more.
  • the upper limit of the dispersity of the molecular weight of the polybenzoxazole precursor is not particularly determined, but for example, it is preferably 2.6 or less, more preferably 2.5 or less, further preferably 2.4 or less, and 2.3 or less. Is more preferable, and 2.2 or less is even more preferable.
  • the polyamide-imide precursor preferably contains a repeating unit represented by the following formula (PAI-2).
  • PAI-2 R 117 represents a trivalent organic group
  • R 111 represents a divalent organic group
  • a 2 represents an oxygen atom or -NH-
  • R 113 represents a hydrogen atom or monovalent. Represents an organic group of.
  • R 117 is composed of a linear or branched aliphatic group, a cyclic aliphatic group, and an aromatic group, a heteroarophatic group, or a single bond or a linking group.
  • Examples of the above-mentioned linked groups are a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, a cyclic aliphatic group having 3 to 20 carbon atoms, and a cyclic aliphatic group having 6 to 20 carbon atoms.
  • the aromatic group of the above, or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms or an aromatic group having 6 to 20 carbon atoms by a single bond or a linking group is preferable.
  • a group in which two or more of the above are combined is more preferable.
  • a group is preferable, and an —O—, —S—, an alkylene group, a halogenated alkylene group, an arylene group, or a linking group in which two or more of these are bonded is more preferable.
  • an alkylene group having 1 to 20 carbon atoms is preferable, an alkylene group having 1 to 10 carbon atoms is more preferable, and an alkylene group having 1 to 4 carbon atoms is further preferable.
  • halogenated alkylene group a halogenated alkylene group having 1 to 20 carbon atoms is preferable, a halogenated alkylene group having 1 to 10 carbon atoms is more preferable, and a halogenated alkylene group having 1 to 4 carbon atoms is more preferable.
  • the halogen atom in the halogenated alkylene group include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom and the like, and a fluorine atom is preferable.
  • the halogenated alkylene group may have a hydrogen atom or all of the hydrogen atoms may be substituted with a halogen atom, but it is preferable that all of the hydrogen atoms are substituted with a halogen atom.
  • preferred halogenated alkylene groups include (ditrifluoromethyl) methylene groups and the like.
  • arylene group a phenylene group or a naphthylene group is preferable, a phenylene group is more preferable, and a 1,3-phenylene group or a 1,4-phenylene group is further preferable.
  • R 117 is preferably derived from a tricarboxylic acid compound in which at least one carboxy group may be halogenated. Chlorination is preferable as the halogenation.
  • a compound having three carboxy groups is referred to as a tricarboxylic acid compound. Of the three carboxy groups of the tricarboxylic acid compound, two carboxy groups may be acid anhydrideized.
  • the halogenated tricarboxylic acid compound used in the production of the polyamide-imide precursor include branched chain aliphatic, cyclic aliphatic or aromatic tricarboxylic acid compounds. Only one kind of these tricarboxylic acid compounds may be used, or two or more kinds may be used.
  • the tricarboxylic acid compound includes a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, a cyclic aliphatic group having 3 to 20 carbon atoms, and a carbon number of carbon atoms.
  • a tricarboxylic acid compound containing 6 to 20 aromatic groups or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms or carbon by a single bond or a linking group is preferable.
  • a tricarboxylic acid compound containing a group in which two or more aromatic groups of the number 6 to 20 are combined is more preferable.
  • the tricarboxylic acid compound examples include 1,2,3-propanetricarboxylic acid, 1,3,5-pentanetricarboxylic acid, citric acid, trimellitic acid, 2,3,6-naphthalenetricarboxylic acid, and phthalic acid.
  • Or phthalic acid anhydride and benzoic acid are single-bonded, with -O-, -CH 2- , -C (CH 3 ) 2- , -C (CF 3 ) 2- , -SO 2- or phenylene group. Examples thereof include linked compounds. These compounds may be compounds in which two carboxy groups are anhydrated (eg, trimellitic anhydride) or compounds in which at least one carboxy group is halogenated (eg, trimellitic anhydride). There may be.
  • each R 111, A 2, R 113 have the same meaning as R 111, A 2, R 113 in formula (2) described above, preferable embodiments are also the same.
  • the polyamide-imide precursor may further contain other repeating units.
  • Other repeating units include a repeating unit represented by the above formula (2), a repeating unit represented by any of the formulas (2-1) to (2-6), and the following formula (PAI-1). Examples include the repeating unit represented by.
  • R 116 represents a divalent organic group and R 111 represents a divalent organic group.
  • R 116 is a linear or branched aliphatic group, a cyclic aliphatic group, and an aromatic group, a heteroaromatic group, or a single bond or a linking group. Examples of the above-mentioned linked groups are a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, a cyclic aliphatic group having 3 to 20 carbon atoms, and a cyclic aliphatic group having 6 to 20 carbon atoms.
  • the aromatic group of the above, or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms or an aromatic group having 6 to 20 carbon atoms by a single bond or a linking group is preferable.
  • a group in which two or more of the above are combined is more preferable.
  • a group is preferable, and an —O—, —S—, an alkylene group, a halogenated alkylene group, an arylene group, or a linking group in which two or more of these are bonded is more preferable.
  • an alkylene group having 1 to 20 carbon atoms is preferable, an alkylene group having 1 to 10 carbon atoms is more preferable, and an alkylene group having 1 to 4 carbon atoms is further preferable.
  • halogenated alkylene group a halogenated alkylene group having 1 to 20 carbon atoms is preferable, a halogenated alkylene group having 1 to 10 carbon atoms is more preferable, and a halogenated alkylene group having 1 to 4 carbon atoms is more preferable.
  • the halogen atom in the halogenated alkylene group include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom and the like, and a fluorine atom is preferable.
  • the halogenated alkylene group may have a hydrogen atom or all of the hydrogen atoms may be substituted with a halogen atom, but it is preferable that all of the hydrogen atoms are substituted with a halogen atom.
  • preferred halogenated alkylene groups include (ditrifluoromethyl) methylene groups and the like.
  • arylene group a phenylene group or a naphthylene group is preferable, a phenylene group is more preferable, and a 1,3-phenylene group or a 1,4-phenylene group is further preferable.
  • R 116 is preferably derived from a dicarboxylic acid compound or a dicarboxylic acid dihalide compound.
  • a compound having two carboxy groups is referred to as a dicarboxylic acid compound
  • a compound having two halogenated carboxy groups is referred to as a dicarboxylic acid dihalide compound.
  • the carboxy group in the dicarboxylic acid dihalide compound may be halogenated, but is preferably chlorinated, for example. That is, the dicarboxylic acid dihalide compound is preferably a dicarboxylic acid dichloride compound.
  • Examples of the halogenated dicarboxylic acid compound or dicarboxylic acid dihalide compound used in the production of the polyamideimide precursor include linear or branched aliphatic, cyclic aliphatic or aromatic dicarboxylic acid compounds or dicarboxylic acids. Examples include aciddihalide compounds. Only one kind or two or more kinds of these dicarboxylic acid compounds or dicarboxylic acid dihalide compounds may be used.
  • the dicarboxylic acid compound or the dicarboxylic acid dihalide compound includes a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, and a cyclic fat having 3 to 20 carbon atoms.
  • a dicarboxylic acid compound or a dicarboxylic acid dihalide compound containing a group group, an aromatic group having 6 to 20 carbon atoms, or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms is preferable.
  • a dicarboxylic acid compound or a dicarboxylic acid dihalide compound containing a group in which two or more aromatic groups having 6 to 20 carbon atoms are combined by a single bond or a linking group is more preferable.
  • dicarboxylic acid compound examples include malonic acid, dimethylmalonic acid, ethylmalonic acid, isopropylmalonic acid, di-n-butylmalonic acid, glutaric acid, tetrafluorosuccinic acid, methylsuccinic acid, 2,2-.
  • R 111 has the same meaning as R 111 in the above equation (2), preferable embodiments thereof are also the same.
  • the polyamide-imide precursor preferably contains a repeating unit represented by any of the following formulas (PAI-3) and (PAI-4) as a repeating unit having at least one of a cyclic imide structure and a cyclic isoimide structure. It is more preferable to include a repeating unit represented by the following formula (PAI-3).
  • PAI-3 a repeating unit represented by the following formula (PAI-3) or formula (PAI-4)
  • R 111 and R 117 are synonymous with R 111 and R 117 in formula (PAI-2), respectively, and so are preferred embodiments.
  • the content of the repeating unit represented by any of the formulas (PAI-3) and (PAI-4) is such that the total content of the cyclic imide structure and the cyclic isoimide structure in the polyamide-imide precursor is within the above range. And it is sufficient.
  • the polyamide-imide precursor has a fluorine atom in the structural unit.
  • the fluorine atom content in the polyamide-imide precursor is preferably 10% by mass or more, and preferably 20% by mass or less.
  • the polyamide-imide precursor may be copolymerized with an aliphatic group having a siloxane structure.
  • the diamine component an embodiment in which bis (3-aminopropyl) tetramethyldisiloxane, bis (p-aminophenyl) octamethylpentasiloxane, or the like is used can be mentioned.
  • An embodiment in which the content is 50 mol% or more of all repeating units can be mentioned.
  • the total content is more preferably 70 mol% or more, further preferably 90 mol% or more, and particularly preferably more than 90 mol%.
  • the upper limit of the total content is not particularly limited, and all the repeating units in the polyamide-imide precursor except the terminal are represented by the repeating unit represented by the formula (PAI-2) and the formula (PAI-1). Repeating unit, repeating unit represented by any of the formulas (PAI-3) and (PAI-4), repeating unit represented by the formula (2), formulas (2-1) to (2-6). It may be any of the repeating units represented by either. Further, as another embodiment of the polyamide-imide precursor in the present invention, a repeating unit represented by the formula (PAI-2), a repeating unit represented by the formula (PAI-1), and a formula (PAI-3).
  • the total content of the repeating units is 50 mol% or more of all the repeating units.
  • the total content is more preferably 70 mol% or more, further preferably 90 mol% or more, and particularly preferably more than 90 mol%.
  • the upper limit of the total content is not particularly limited, and all the repeating units in the polyamide-imide precursor except the terminal are represented by the repeating unit represented by the formula (PAI-2) and the formula (PAI-1). It may be either a repeating unit or a repeating unit represented by any of the formulas (PAI-3) and (PAI-4).
  • the weight average molecular weight (Mw) of the polyamide-imide precursor is preferably 2,000 to 500,000, more preferably 5,000 to 100,000, and even more preferably 10,000 to 50,000. ..
  • the number average molecular weight (Mn) is preferably 800 to 250,000, more preferably 2,000 to 50,000, and even more preferably 4,000 to 25,000.
  • the degree of dispersion of the molecular weight of the polyamide-imide precursor is preferably 1.5 to 3.5, more preferably 2 to 3.
  • the degree of dispersion of the molecular weight means a value obtained by dividing the weight average molecular weight by the number average molecular weight (weight average molecular weight / number average molecular weight).
  • a polyimide precursor or the like is obtained by reacting a dicarboxylic acid or a dicarboxylic acid derivative with a diamine.
  • the dicarboxylic acid or the dicarboxylic acid derivative is obtained by halogenating it with a halogenating agent and then reacting it with a diamine.
  • an organic solvent in the reaction.
  • the organic solvent may be one kind or two or more kinds.
  • the organic solvent can be appropriately determined depending on the raw material, and examples thereof include pyridine, diethylene glycol dimethyl ether (diglyme), N-methylpyrrolidone and N-ethylpyrrolidone.
  • non-halogen catalyst a known amidation catalyst containing no halogen atom can be used without particular limitation.
  • a boroxin compound, an N-hydroxy compound, a tertiary amine, a phosphoric acid ester, or an amine can be used.
  • carbodiimide compounds such as salts and urea compounds.
  • the carbodiimide compound include N, N'-diisopropylcarbodiimide, N, N'-dicyclohexylcarbodiimide and the like.
  • the organic solvent may be one kind or two or more kinds.
  • the organic solvent can be appropriately determined depending on the raw material, and examples thereof include pyridine, diethylene glycol dimethyl ether (diglyme), N-methylpyrrolidone and N-ethylpyrrolidone.
  • a dicarboxylic acid or a dicarboxylic acid derivative which may be halogenated by a halogenating agent or may not be halogenated and a non-halogenated catalyst may be used
  • a diamine which may be halogenated by a halogenating agent or may not be halogenated and a non-halogenated catalyst may be used
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure or the molar content of the benzoxazole structure described above can be adjusted by appropriately setting the reaction time, the reaction temperature, and the pH at the time of the reaction. ..
  • the end of the polyimide precursor or the like is used as an end-capping agent such as an acid anhydride, a monocarboxylic acid, a monoacid chloride compound or a monoactive ester compound. It is preferable to seal. It is more preferable to use monoamine as the terminal encapsulant, and preferred compounds of monoamine are aniline, 2-ethynylaniline, 3-ethynylaniline, 4-ethynylaniline, 5-amino-8-hydroxyquinoline, 1-.
  • a step of precipitating a solid may be included in the production of the polyimide precursor or the like.
  • the polyimide precursor or the like in the reaction solution can be precipitated in water, and the polyimide precursor or the like such as tetrahydrofuran can be dissolved in a soluble solvent to precipitate a solid.
  • the polyimide precursor or the like can be dried to obtain a powdery polyimide precursor or the like.
  • the content of the specific resin in the composition of the present invention is preferably 20% by mass or more, more preferably 30% by mass or more, and more preferably 40% by mass or more, based on the total solid content of the composition. More preferably, it is more preferably 50% by mass or more.
  • the content of the resin in the composition of the present invention is preferably 99.5% by mass or less, more preferably 99% by mass or less, and 98% by mass or less, based on the total solid content of the composition. It is more preferably 97% by mass or less, and even more preferably 95% by mass or less.
  • the composition of the present invention may contain only one type of specific resin, or may contain two or more types. When two or more kinds are included, the total amount is preferably in the above range.
  • the curable resin composition of the present invention preferably contains at least two kinds of resins.
  • the curable resin composition of the present invention may contain two or more kinds of the specific resin and another resin described later in total, or may contain two or more kinds of the specific resin, but is specific. It is preferable to contain two or more kinds of resins.
  • the curable resin composition of the present invention contains two or more kinds of specific resins, for example, two or more kinds of polyimide precursors having different structures derived from dianhydride (R 115 in the above formula (2)). It is preferable to contain the polyimide precursor of.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in at least one type of polyimide precursor may be within the above range.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in all the polyimide precursors is preferably in the above range with respect to the case where the total amount of all the polyimide precursors is 1 g, and the curable resin composition. It is more preferable that each of the polyimide precursors contained in the product contains a cyclic imide structure and a cyclic isoimide structure in the above range.
  • the molar content of the benzoxazole structure contained in at least one polybenzoxazole precursor may be within the above range.
  • the total molar content of the benzoxazole structure contained in all the polybenzoxazole precursors is preferably in the above range with respect to the case where the total amount of all the polybenzoxazole precursors is 1 g, and the curable resin composition. It is more preferable that each of the polyimide precursors contained in the above contains at least one of a cyclic imide structure and a cyclic isoimide structure in the above range.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in at least one kind of polyamide-imide precursor is within the above range. It is preferable that the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in all the polyamide-imide precursors is in the above range with respect to the case where the total amount of all the polyamide-imide precursors is 1 g. It is more preferable that each of the polyamide-imide precursors contained in the curable resin composition contains at least one of a cyclic imide structure and a cyclic isoimide structure in the above range.
  • the curable resin composition of the present invention contains an organometallic complex.
  • the organic metal complex may be an organic complex compound containing a metal atom, but is preferably a complex compound containing a metal atom and an organic group, and is a compound in which an organic group is coordinated with respect to the metal atom. More preferably, it is a metallocene compound.
  • the metallocene compound refers to an organometallic complex having two cyclopentadienyl anion derivatives which may have a substituent as ⁇ 5-ligands.
  • the organic group is not particularly limited, but a hydrocarbon group or a group composed of a combination of a hydrocarbon group and a heteroatom is preferable.
  • the hetero atom an oxygen atom, a sulfur atom and a nitrogen atom are preferable.
  • at least one of the organic groups is preferably a cyclic group, and at least two are more preferably cyclic groups.
  • the cyclic group is preferably selected from a 5-membered cyclic group and a 6-membered cyclic group, and more preferably a 5-membered cyclic group.
  • the cyclic group may be a hydrocarbon ring or a heterocycle, but a hydrocarbon ring is preferable.
  • the organometallic complex used in the present invention preferably contains 2 to 4 cyclic groups in one molecule.
  • the metal contained in the organic metal complex is not particularly limited, but is preferably a metal corresponding to a Group 4 element, and is at least one metal selected from the group consisting of titanium, zirconium and hafnium. More preferably, it is more preferably at least one metal selected from the group consisting of titanium and zirconium, and particularly preferably titanium.
  • the organometallic complex may contain two or more metal atoms or may contain only one metal atom, but preferably contains only one metal atom. When the organometallic complex contains two or more metal atoms, it may contain only one type of metal atom or may contain two or more types of metal atoms.
  • the organic metal complex is preferably a ferrocene compound, a titanosen compound, a zirconocene compound or a hafnosen compound, more preferably a titanosen compound, a zirconocene compound or a hafnosen compound, and further preferably a titanosen compound or a zirconocene compound.
  • Titanocene compounds are particularly preferred.
  • an embodiment in which the organometallic complex has an ability to initiate photoradical polymerization is also one of the preferred embodiments of the present invention.
  • the organometallic complex is dispersed in the film in a nearly uniform state by using the specific resin. Therefore, when the organometallic complex has the ability to initiate photoradical polymerization, it is considered that the aggregation of the organometallic complex due to the aggregation of the organic metal complex suppresses the aggregation of the local radical polymerization initiator. It is considered that the degree of polymerization of the specific resin or the cross-linking agent tends to be close to uniform in the film by suppressing the aggregation of the radical polymerization initiator.
  • having the ability to initiate photoradical polymerization means that free radicals capable of initiating radical polymerization can be generated by irradiation with light. For example, when a composition containing a radical cross-linking agent and an organic metal complex is irradiated with light in a wavelength range in which the organic metal complex absorbs light and the radical cross-linking agent does not absorb light, radicals are generated. By confirming the presence or absence of the disappearance of the cross-linking agent, the presence or absence of the photoradical polymerization initiation ability can be confirmed.
  • the organometallic complex has a photoradical polymerization initiating ability
  • the organometallic complex is preferably a metallocene compound, more preferably a titanosen compound, a zirconocene compound or a hafnosen compound, and is a titanosen compound or a zirconocene compound. Is more preferable, and a titanosen compound is particularly preferable.
  • the organic metal complex is at least one selected from the group consisting of a titanosen compound, a tetraalkoxytitanium compound, a titanium acylate compound, a titanium chelate compound, a zirconocene compound and a hafnosen compound. It is preferably a compound of a species, more preferably at least one compound selected from the group consisting of a titanosen compound, a zirconocene compound and a hafnosen compound, and more preferably at least one selected from the group consisting of a titanosen compound and a zirconocene compound. It is more preferably a species compound, and particularly preferably a titanosen compound.
  • the molecular weight of the organometallic complex is preferably 50 to 2,000, more preferably 100 to 1,000.
  • a compound represented by the following formula (P) is preferably mentioned.
  • M is a metal atom and R is an independent substituent.
  • the R is preferably independently selected from an aromatic group, an alkyl group, a halogen atom and an alkylsulfonyloxy group.
  • an iron atom, a titanium atom, a zirconium atom or a hafnium atom is preferable, a titanium atom, a zirconium atom or a hafnium atom is more preferable, a titanium atom or a zirconium atom is further preferable, and titanium. Atoms are particularly preferred.
  • the aromatic group in R in the formula (P) include an aromatic group having 6 to 20 carbon atoms, preferably an aromatic hydrocarbon group having 6 to 20 carbon atoms, a phenyl group, a 1-naphthyl group, or an aromatic group. , 2-naphthyl group and the like.
  • an alkyl group having 1 to 20 carbon atoms is preferable, an alkyl group having 1 to 10 carbon atoms is more preferable, and a methyl group, an ethyl group, a propyl group, an octyl group, and an isopropyl group.
  • T-Butyl group Isopentyl group, 2-Ethylhexyl group, 2-Methylhexyl group, Cyclopentyl group and the like.
  • the halogen atom in R include F, Cl, Br, and I.
  • an alkyl group having 1 to 20 carbon atoms is preferable, an alkyl group having 1 to 10 carbon atoms is more preferable, and a methyl group, an ethyl group, a propyl group, an octyl group, and the like.
  • examples thereof include an isopropyl group, a t-butyl group, an isopentyl group, a 2-ethylhexyl group, a 2-methylhexyl group, a cyclopentyl group and the like.
  • the R may further have a substituent.
  • substituents include halogen atom (F, Cl, Br, I), hydroxy group, carboxy group, amino group, cyano group, aryl group, alkoxy group, aryloxy group, acyl group, alkoxycarbonyl group, aryloxy.
  • substituents include a carbonyl group, an acyloxy group, a monoalkylamino group, a dialkylamino group, a monoarylamino group and a diarylamino group.
  • organic metal complex examples are not particularly limited, but are tetraisopropoxytitanium, tetrakis (2-ethylhexyloxy) titanium, diisopropoxybis (ethylacetacetate) titanium, and diisopropoxybis (acetylacetate).
  • the content of the organometallic complex is preferably 0.1 to 30% by mass with respect to the total solid content of the curable resin composition of the present invention.
  • the lower limit is more preferably 1.0% by mass or more, further preferably 1.5% by mass or more, and particularly preferably 3.0% by mass or more.
  • the upper limit is more preferably 25% by mass or less.
  • the organometallic complex one kind or two or more kinds can be used. When two or more kinds are used, the total amount is preferably in the above range.
  • the composition of the present invention may contain the above-mentioned specific resin and another resin (hereinafter, also simply referred to as “other resin”) different from the specific resin.
  • other resins include polyamide-imide, polyamide-imide precursor, phenol resin, polyamide, epoxy resin, polysiloxane, resin containing a siloxane structure, and acrylic resin.
  • acrylic resin by further adding an acrylic resin, a composition having excellent coatability can be obtained, and an organic film having excellent solvent resistance can be obtained.
  • the composition may be prepared by adding an acrylic resin having a weight average molecular weight of 20,000 or less and having a high polymerizable base value to the composition in place of the cross-linking agent described later or in addition to the cross-linking agent described later. It is possible to improve the coatability, the solvent resistance of the organic film, and the like.
  • the content of the other resin is preferably 0.01% by mass or more, preferably 0.05% by mass or more, based on the total solid content of the composition. More preferably, it is more preferably 1% by mass or more, further preferably 2% by mass or more, further preferably 5% by mass or more, further preferably 10% by mass or more. ..
  • the content of the other resin in the composition of the present invention is preferably 80% by mass or less, more preferably 75% by mass or less, and 70% by mass, based on the total solid content of the composition. It is more preferably less than or equal to, more preferably 60% by mass or less, and even more preferably 50% by mass or less.
  • the content of the other resin may be low.
  • the content of the other resin is preferably 20% by mass or less, more preferably 15% by mass or less, and preferably 10% by mass or less, based on the total solid content of the composition. More preferably, it is more preferably 5% by mass or less, and even more preferably 1% by mass or less.
  • the lower limit of the content is not particularly limited, and may be 0% by mass or more.
  • the composition of the present invention may contain only one type of other resin, or may contain two or more types. When two or more kinds are included, the total amount is preferably in the above range.
  • the curable resin composition of the present invention preferably contains a solvent.
  • a solvent a known solvent can be arbitrarily used.
  • the solvent is preferably an organic solvent.
  • the organic solvent include compounds such as esters, ethers, ketones, cyclic hydrocarbons, sulfoxides, amides, ureas, and alcohols.
  • esters include ethyl acetate, n-butyl acetate, isobutyl acetate, hexyl acetate, amyl formate, isoamyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate, methyl lactate, ethyl lactate, and ⁇ -butyrolactone.
  • alkylalkyloxyacetate eg, methyl alkyloxyacetate, ethyl alkyloxyacetate, butyl alkyloxyacetate (eg, methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, Ethyl ethoxyacetate, etc.)
  • 3-alkyloxypropionate alkyl esters eg, methyl 3-alkyloxypropionate, ethyl 3-alkyloxypropionate, etc.) (eg, methyl 3-methoxypropionate, 3-methoxypropionate, etc.) Ethyl, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, etc.)
  • 2-alkyloxypropionate alkyl esters eg, methyl 2-alkyloxypropionate, ethyl 2-alkyloxypropionate, ethyl 2-alkyl
  • ethers include diethylene glycol dimethyl ether, tetrahydrofuran, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, methyl cellosolve acetate, ethyl cellosolve acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, and propylene glycol.
  • Suitable examples include monomethyl ether acetate, propylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, ethylene glycol monobutyl ether acetate, diethylene glycol ethyl methyl ether, and propylene glycol monopropyl ether acetate.
  • ketones for example, methyl ethyl ketone, cyclohexanone, cyclopentanone, 2-heptanone, 3-heptanone, 3-methylcyclohexanone, levoglucosenone, dihydrolevoglucosenone and the like are preferable.
  • cyclic hydrocarbons for example, aromatic hydrocarbons such as toluene, xylene and anisole, and cyclic terpenes such as limonene are preferable.
  • sulfoxides for example, dimethyl sulfoxide is preferable.
  • N, N, N', N'-tetramethylurea, 1,3-dimethyl-2-imidazolidinone and the like are preferable.
  • Alcohols include methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 1-pentanol, 1-hexanol, benzyl alcohol, ethylene glycol monomethyl ether, 1-methoxy-2-propanol, 2-ethoxyethanol, Diethylene glycol monoethyl ether, diethylene glycol monohexyl ether, triethylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monomethyl ether, polyethylene glycol monomethyl ether, polypropylene glycol, tetraethylene glycol, ethylene glycol monobutyl ether, ethylene glycol monobenzyl ether, Examples thereof include ethylene glycol monophenyl ether, methylphenyl carbinol, n-amyl alcohol, methyl amyl alcohol, and diacetone alcohol.
  • the solvent is preferably a mixture of two or more types from the viewpoint of improving the properties of the coated surface.
  • the mixed solvent to be mixed is preferable.
  • the combined use of dimethyl sulfoxide and ⁇ -butyrolactone is particularly preferred.
  • a combination of N-methyl-2-pyrrolidone and ethyl lactate, N-methyl-2-pyrrolidone and ethyl lactate, diacetone alcohol and ethyl lactate, cyclopentanone and ⁇ -butyrolactone is also preferable.
  • the solvent content is preferably such that the total solid content concentration of the curable resin composition of the present invention is 5 to 80% by mass, and is preferably 5 to 75% by mass. It is more preferable that the amount is 10 to 70% by mass, and more preferably 40 to 70% by mass.
  • the solvent content may be adjusted according to the desired thickness of the coating film and the coating method.
  • the solvent may contain only one type, or may contain two or more types. When two or more kinds of solvents are contained, the total is preferably in the above range.
  • the composition of the present invention preferably contains a photosensitizer. It is assumed that the photosensitizer does not contain the above-mentioned organometallic complex and a compound having a photoradical polymerization initiation ability.
  • the composition of the present invention preferably contains a photopolymerization initiator.
  • the composition of the present invention preferably contains a photopolymerization initiator as the photosensitizer.
  • the photopolymerization initiator is preferably a photoradical polymerization initiator.
  • the photoradical polymerization initiator is not particularly limited and may be appropriately selected from known photoradical polymerization initiators.
  • a photoradical polymerization initiator having photosensitivity to light rays in the ultraviolet region to the visible region is preferable. Further, it may be an activator that produces an active radical by causing some action with the photoexcited sensitizer.
  • the compound corresponding to the organometallic complex does not correspond to the photosensitizer and the photoradical polymerization initiator.
  • the composition of the present invention does not substantially contain a radical polymerization initiator other than the above-mentioned organometallic complex.
  • the fact that the composition of the present invention does not substantially contain a radical polymerization initiator other than the organometallic complex means that the content of the radical polymerization initiator other than the organometallic complex is based on the total mass of the organometallic complex. It is said that it is 5% by mass or less, preferably 3% by mass or less, more preferably 1% by mass or less, and further preferably 0.1% by mass.
  • the composition of the present invention contains an organometallic complex having a radical polymerization initiatoring ability
  • the composition of the present invention contains the above-mentioned organometallic complex and a photoradical polymerization initiator. According to such an aspect, as described above, the generation of development residue, the disconnection of the pattern, and the like can be suppressed, and the exposure sensitivity can be improved.
  • the composition of the present invention preferably contains a photoradical polymerization initiator. Since the composition of the present invention contains a specific resin, it is considered that aggregation of the organometallic complex is suppressed.
  • the composition of the present invention contains an organometallic complex and a photoradical polymerization initiator
  • the content of the organometallic complex with respect to the total content of the organometallic complex and the photoradical polymerization initiator is 20 to 80% by mass. It is preferably 30 to 70% by mass, and more preferably 30 to 70% by mass.
  • an oxime compound described later is preferable.
  • the photoradical polymerization initiator contains at least one compound having a molar extinction coefficient of at least about 50 L ⁇ mol -1 ⁇ cm -1 within the range of about 300 to 800 nm (preferably 330 to 500 nm). Is preferable.
  • the molar extinction coefficient of a compound can be measured using a known method. For example, it is preferable to measure at a concentration of 0.01 g / L using an ethyl acetate solvent with an ultraviolet-visible spectrophotometer (Cary-5 spectrophotometer manufactured by Varian).
  • a known compound can be arbitrarily used as the photoradical polymerization initiator.
  • halogenated hydrocarbon derivatives for example, compounds having a triazine skeleton, compounds having an oxadiazole skeleton, compounds having a trihalomethyl group, etc.
  • acylphosphine compounds such as acylphosphine oxide, hexaarylbiimidazole, oxime derivatives and the like.
  • paragraphs 0165 to 0182 of JP2016-027357 and paragraphs 0138 to 0151 of International Publication No. 2015/199219 can be referred to, and the contents thereof are incorporated in the present specification.
  • Examples of the ketone compound include the compounds described in paragraph 0087 of JP-A-2015-087611, the contents of which are incorporated in the present specification.
  • KayaCure DETX manufactured by Nippon Kayaku Co., Ltd.
  • Nippon Kayaku Co., Ltd. is also preferably used.
  • a hydroxyacetophenone compound, an aminoacetophenone compound, and an acylphosphine compound can be preferably used as the photoradical polymerization initiator. More specifically, for example, the aminoacetophenone-based initiator described in JP-A-10-291969 and the acylphosphine oxide-based initiator described in Japanese Patent No. 4225898 can be used.
  • IRGACURE 184 (IRGACURE is a registered trademark)
  • DAROCUR 1173 As the hydroxyacetophenone-based initiator, IRGACURE 184 (IRGACURE is a registered trademark), DAROCUR 1173, IRGACURE 500, IRGACURE-2959, and IRGACURE 127 (trade names: all manufactured by BASF) can be used.
  • aminoacetophenone-based initiator commercially available products IRGACURE 907, IRGACURE 369, and IRGACURE 379 (trade names: all manufactured by BASF) can be used.
  • the compound described in JP-A-2009-191179 in which the absorption maximum wavelength is matched with a wavelength light source such as 365 nm or 405 nm, can also be used.
  • acylphosphine-based initiator examples include 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide. Further, commercially available products such as IRGACURE-819 and IRGACURE-TPO (trade names: both manufactured by BASF) can be used.
  • the photoradical polymerization initiator is more preferably an oxime compound.
  • the exposure latitude can be improved more effectively.
  • the oxime compound is particularly preferable because it has a wide exposure latitude (exposure margin) and also acts as a photocuring accelerator.
  • the compound described in JP-A-2001-233842 the compound described in JP-A-2000-080068, and the compound described in JP-A-2006-342166 can be used.
  • Preferred oxime compounds include, for example, compounds having the following structures, 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminobutane-2-one, 2-acetoxy. Iminopentan-3-one, 2-acetoxyimino-1-phenylpropan-1-one, 2-benzoyloxyimino-1-phenylpropane-1-one, 3- (4-toluenesulfonyloxy) iminobutane-2-one , And 2-ethoxycarbonyloxyimino-1-phenylpropan-1-one and the like.
  • an oxime compound (oxime-based photopolymerization initiator) as the photoradical polymerization initiator.
  • IRGACURE OXE 01 IRGACURE OXE 02, IRGACURE OXE 03, IRGACURE OXE 04 (above, manufactured by BASF), ADEKA PUTMER N-1919 (manufactured by ADEKA Corporation, Japanese Patent Application Laid-Open No. 2012-014052).
  • a radical polymerization initiator 2) is also preferably used.
  • TR-PBG-304 manufactured by Changshu Powerful Electronics New Materials Co., Ltd.
  • ADEKA ARCLUDS NCI-831 ADEKA ARCULDS NCI-930
  • DFI-091 manufactured by Daito Chemix Co., Ltd.
  • an oxime compound having the following structure can also be used.
  • an oxime compound having a fluorene ring can also be used.
  • Specific examples of the oxime compound having a fluorene ring include the compound described in JP-A-2014-137466 and the compound described in Japanese Patent No. 6636081.
  • an oxime compound having a skeleton in which at least one benzene ring of the carbazole ring is a naphthalene ring can also be used.
  • Specific examples of such an oxime compound include the compounds described in International Publication No. 2013/083505.
  • an oxime compound having a fluorine atom examples include compounds described in JP-A-2010-262028, compounds 24, 36-40 described in paragraph 0345 of JP-A-2014-500852, and JP-A-2013. Examples thereof include the compound (C-3) described in paragraph 0101 of JP-A-164471.
  • Examples of the most preferable oxime compound include an oxime compound having a specific substituent shown in JP-A-2007-269779 and an oxime compound having a thioaryl group shown in JP-A-2009-191061.
  • the photoradical polymerization initiator is a trihalomethyltriazine compound, a benzyl dimethyl ketal compound, an ⁇ -hydroxyketone compound, an ⁇ -aminoketone compound, an acylphosphine compound, a phosphine oxide compound, a metallocene compound, an oxime compound, or a triaryl.
  • More preferable photoradical polymerization initiators are trihalomethyltriazine compounds, ⁇ -aminoketone compounds, acylphosphine compounds, phosphine oxide compounds, metallocene compounds, oxime compounds, triarylimidazole dimers, onium salt compounds, benzophenone compounds and acetophenone compounds.
  • At least one compound selected from the group consisting of trihalomethyltriazine compounds, ⁇ -aminoketone compounds, oxime compounds, triarylimidazole dimers, and benzophenone compounds is more preferable, and metallocene compounds or oxime compounds are even more preferable, and oxime compounds are even more preferable. Is even more preferable.
  • the photoradical polymerization initiator is N, N'-tetraalkyl-4,4'-diaminobenzophenone, 2-benzyl such as benzophenone, N, N'-tetramethyl-4,4'-diaminobenzophenone (Michler ketone).
  • 2-benzyl such as benzophenone
  • benzoin ether compounds such as benzoin alkyl ether
  • benzoin compounds such as benzoin and alkyl benzoin
  • benzyl derivatives such as benzyl dimethyl ketal.
  • a compound represented by the following formula (I) can also be used.
  • RI00 is an alkyl group having 1 to 20 carbon atoms, an alkyl group having 2 to 20 carbon atoms interrupted by one or more oxygen atoms, an alkoxy group having 1 to 12 carbon atoms, a phenyl group, and the like.
  • R I01 is a group represented by formula (II), the same as R I00
  • the groups, R I02 to R I04, are independently alkyls having 1 to 12 carbon atoms, alkoxy groups having 1 to 12 carbon atoms, or halogens, respectively.
  • R I05 to R I07 are the same as R I 02 to R I 04 of the above formula (I).
  • the compounds described in paragraphs 0048 to 0055 of International Publication No. 2015/1254669 can also be used.
  • the content thereof is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the composition of the present invention. It is more preferably 0.5 to 15% by mass, and even more preferably 1.0 to 10% by mass. Only one type of photopolymerization initiator may be contained, or two or more types may be contained. When two or more kinds of photopolymerization initiators are contained, the total amount is preferably in the above range.
  • the composition of the present invention preferably contains a photoacid generator as a photosensitizer.
  • a photoacid generator for example, acid is generated in the exposed part of the photosensitive film, the solubility of the exposed part in the developing solution (for example, an alkaline aqueous solution) is increased, and the exposed part is removed by the developing solution.
  • a positive pattern can be obtained.
  • the composition contains a photoacid generator and a cross-linking agent other than the radical cross-linking agent described later, for example, the cross-linking reaction of the cross-linking agent is promoted by the acid generated in the exposed part, and the exposed part becomes It is also possible to make it more difficult to be removed by the developing solution than the non-exposed portion. According to such an aspect, a negative type pattern can be obtained.
  • the photoacid generator is not particularly limited as long as it generates an acid by exposure, but is an onium salt compound such as a quinonediazide compound, a diazonium salt, a phosphonium salt, a sulfonium salt, or an iodonium salt, an imide sulfonate, and an oxime.
  • onium salt compound such as a quinonediazide compound, a diazonium salt, a phosphonium salt, a sulfonium salt, or an iodonium salt, an imide sulfonate, and an oxime.
  • examples thereof include sulfonate compounds such as sulfonate, diazodisulfone, disulfone, and o-nitrobenzyl sulfonate.
  • the quinone diazide compound includes a polyhydroxy compound in which quinone diazide sulfonic acid is ester-bonded, a polyamino compound in which quinone diazide sulfonic acid is conjugated with a sulfonamide, and a polyhydroxypolyamino compound in which quinone diazide sulfonic acid is ester-bonded and a sulfonamide bond.
  • Examples include those bound by at least one of the above. In the present invention, for example, it is preferable that 50 mol% or more of all the functional groups of these polyhydroxy compounds and polyamino compounds are substituted with quinonediazide.
  • the quinone diazide either a 5-naphthoquinone diazidosulfonyl group or a 4-naphthoquinone diazidosulfonyl group is preferably used.
  • the 4-naphthoquinone diazidosulfonyl ester compound has absorption in the i-line region of a mercury lamp and is suitable for i-line exposure.
  • the 5-naphthoquinone diazidosulfonyl ester compound has absorption extending to the g-line region of a mercury lamp and is suitable for g-line exposure.
  • a 4-naphthoquinone diazidosulfonyl ester compound or a 5-naphthoquinone diazidosulfonyl ester compound depending on the wavelength to be exposed.
  • a naphthoquinone diazidosulfonyl ester compound having a 4-naphthoquinone diazidosulfonyl group and a 5-naphthoquinone diazidosulfonyl group may be contained in the same molecule, or a 4-naphthoquinone diazidosulfonyl ester compound and a 5-naphthoquinone diazidosulfonyl ester compound may be contained. It may be contained.
  • the naphthoquinone diazide compound can be synthesized by an esterification reaction between a compound having a phenolic hydroxy group and a quinone diazido sulfonic acid compound, and can be synthesized by a known method. By using these naphthoquinone diazide compounds, the resolution, sensitivity, and residual film ratio are further improved.
  • Examples of the naphthoquinone diazide compound include 1,2-naphthoquinone-2-diazide-5-sulfonic acid or 1,2-naphthoquinone-2-diazide-4-sulfonic acid, and salts or ester compounds of these compounds. Be done.
  • Examples of the onium salt compound or the sulfonate compound include the compounds described in paragraphs 0064 to 0122 of JP-A-2008-013646.
  • the photoacid generator is also preferably a compound containing an oxime sulfonate group (hereinafter, also simply referred to as “oxime sulfonate compound”).
  • oxime sulfonate compound is not particularly limited as long as it has an oxime sulfonate group, but the following formula (OS-1), the formula (OS-103) described later, the formula (OS-104), or the formula (OS-) It is preferably an oxime sulfonate compound represented by 105).
  • X 3 is an alkyl group, an alkoxyl group, or a halogen atom. If X 3 there are a plurality, each be the same or may be different. Alkyl group and an alkoxyl group represented by X 3 may have a substituent.
  • the halogen atom in the X 3, a chlorine atom or a fluorine atom is preferable.
  • m3 represents an integer of 0 to 3, and 0 or 1 is preferable. When m3 is 2 or 3, a plurality of X 3 may be the same or different.
  • R 34 represents an alkyl group or an aryl group, which is an alkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 5 carbon atoms, and carbon. It is preferably an alkoxyl group of numbers 1 to 5, a phenyl group optionally substituted with W, a naphthyl group optionally substituted with W or an anthranyl group optionally substituted with W.
  • W is a halogen atom, a cyano group, a nitro group, an alkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 5 carbon atoms or an alkoxyl halide having 1 to 5 carbon atoms. It represents a group, an aryl group having 6 to 20 carbon atoms, and an aryl halide group having 6 to 20 carbon atoms.
  • oxime sulfonate compound represented by the formula (OS-1) are described in paragraphs 0064 to 0068 of JP2011-209692A and paragraph numbers 0158 to 0167 of JP2015-194674A. The following compounds are exemplified and their contents are incorporated herein.
  • R s1 represents an alkyl group, an aryl group, or a heteroaryl group
  • R s2 which may be present in a plurality of groups, independently represents a hydrogen atom, an alkyl group, and an aryl
  • R s6 which represents a group or a halogen atom and may be present in a plurality, independently represents a halogen atom, an alkyl group, an alkyloxy group, a sulfonic acid group, an aminosulfonyl group or an alkoxysulfonyl group
  • Xs represents O or S.
  • ns 1 or 2
  • ms represents an integer of 0-6.
  • an alkyl group represented by R s1 preferably having 1 to 30 carbon atoms
  • an aryl group preferably having 6 to 30 carbon atoms
  • a heteroaryl group carbon
  • numbers 4 to 30 may have a substituent T.
  • R s2 is preferably a hydrogen atom, an alkyl group (preferably having 1 to 12 carbon atoms) or an aryl group (preferably having 6 to 30 carbon atoms). , Hydrogen atom or alkyl group is more preferable.
  • R s2 that may be present in two or more in the compound, one or two are preferably an alkyl group, an aryl group or a halogen atom, and one is more preferably an alkyl group, an aryl group or a halogen atom. It is particularly preferable that one is an alkyl group and the rest is a hydrogen atom.
  • the alkyl group or aryl group represented by R s2 may have a substituent T.
  • Xs represents O or S, and is preferably O.
  • the ring containing Xs as a ring member is a 5-membered ring or a 6-membered ring.
  • ns represents 1 or 2, and when Xs is O, ns is preferably 1, and when Xs is S, ns is. It is preferably 2.
  • the alkyl group represented by R s6 preferably having 1 to 30 carbon atoms
  • the alkyloxy group preferably having 1 to 30 carbon atoms
  • ms represents an integer of 0 to 6, preferably an integer of 0 to 2, more preferably 0 or 1, and 0. Is particularly preferable.
  • the compound represented by the above formula (OS-103) is particularly preferably a compound represented by the following formula (OS-106), formula (OS-110) or formula (OS-111).
  • the compound represented by the formula (OS-104) is particularly preferably a compound represented by the following formula (OS-107), and the compound represented by the above formula (OS-105) is a compound represented by the following formula (OS-105). -108) or a compound represented by the formula (OS-109) is particularly preferable.
  • R t1 represents an alkyl group, an aryl group or a heteroaryl group
  • R t7 represents a hydrogen atom or a bromine atom
  • R t8 represents a hydrogen atom and the number of carbon atoms. 1 to 8 alkyl groups, halogen atoms, chloromethyl groups, bromomethyl groups, bromoethyl groups, methoxymethyl groups, phenyl groups or chlorophenyl groups
  • R t9 represents hydrogen atoms, halogen atoms, methyl groups or methoxy groups
  • R t2 represents a hydrogen atom or a methyl group.
  • R t7 represents a hydrogen atom or a bromine atom, and is preferably a hydrogen atom.
  • R t8 is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a halogen atom, a chloromethyl group, a bromomethyl group, a bromoethyl group, a methoxymethyl group, or a phenyl group.
  • it represents a chlorophenyl group, preferably an alkyl group having 1 to 8 carbon atoms, a halogen atom or a phenyl group, more preferably an alkyl group having 1 to 8 carbon atoms, and an alkyl group having 1 to 6 carbon atoms. It is more preferable to have a methyl group, and it is particularly preferable to have a methyl group.
  • R t9 represents a hydrogen atom, a halogen atom, a methyl group or a methoxy group, and is preferably a hydrogen atom.
  • R t2 represents a hydrogen atom or a methyl group, and is preferably a hydrogen atom.
  • the three-dimensional structure (E, Z) of the oxime may be either one or a mixture.
  • Specific examples of the oxime sulfonate compounds represented by the above formulas (OS-103) to (OS-105) include paragraph numbers 008 to 0995 of JP2011-209692A and paragraphs of JP2015-194674A.
  • the compounds of Nos. 0168 to 0194 are exemplified and their contents are incorporated herein.
  • oxime sulfonate compound containing at least one oxime sulfonate group include compounds represented by the following formulas (OS-101) and (OS-102).
  • Ru9 is a hydrogen atom, an alkyl group, an alkenyl group, an alkoxyl group, an alkoxycarbonyl group, an acyl group, a carbamoyl group, a sulfamoyl group, a sulfo group, a cyano group, Represents an aryl group or a heteroaryl group.
  • R u9 is a cyano group or an aryl group is more preferable, and the embodiment in which R u9 is a cyano group, a phenyl group or a naphthyl group is further preferable.
  • Ru2a represents an alkyl or aryl group.
  • Xu is -O-, -S-, -NH- , -NR u5-, -CH 2- , -CR u6 H- or CR u6 R u7.
  • Ru1 to Ru4 are independently hydrogen atom, halogen atom, alkyl group, alkenyl group, alkoxyl group, amino group, alkoxycarbonyl group and alkylcarbonyl group, respectively. , Arylcarbonyl group, amide group, sulfo group, cyano group or aryl group. 2 in turn, each may be bonded to each other to form a ring of the R u1 ⁇ R u4. At this time, the ring may be condensed to form a condensed ring together with the benzene ring.
  • R u1 ⁇ R u4 a hydrogen atom, preferably a halogen atom or an alkyl group, also aspects to form the at least two aryl groups bonded to each other of R u1 ⁇ R u4 preferred.
  • Ru1 to Ru4 are hydrogen atoms. Any of the above-mentioned substituents may further have a substituent.
  • the compound represented by the above formula (OS-101) is more preferably a compound represented by the formula (OS-102).
  • the three-dimensional structure (E, Z, etc.) of the oxime and the benzothiazole ring may be either one or a mixture.
  • Specific examples of the compound represented by the formula (OS-101) include the compounds described in paragraph numbers 0102 to 0106 of JP2011-209692 and paragraph numbers 0195 to 0207 of JP2015-194674. These contents are incorporated herein by reference.
  • the following b-9, b-16, b-31, and b-33 are preferable.
  • a commercially available product may be used as the photoacid generator.
  • Commercially available products include WPAG-145, WPAG-149, WPAG-170, WPAG-199, WPAG-336, WPAG-376, WPAG-370, WPAG-443, WPAG-469, WPAG-638, and WPAG-69 (any of which).
  • Fujifilm Wako Pure Chemical Industries, Ltd. Omnicat 250, Omnicat 270 (all manufactured by IGM Resins BV), Irgacure 250, Irgacure 270, Irgacure 290 (all manufactured by BASF), MBZ-101 (all manufactured by BASF) (Made by Midori Chemical Industries, Ltd.) and the like.
  • an organic halogenated compound can also be applied.
  • the organic halogenated compound include Wakabayashi et al., “Bull Chem. Soc Japan” 42, 2924 (1969), US Pat. No. 3,905,815, JP-A-46-4605, JP-A-A. 48-36281, JP-A-55-3270, JP-A-60-239736, JP-A-61-169835, JP-A-61-169837, JP-A-62-58241, JP-A-62- 212401, Japanese Patent Application Laid-Open No. 63-70243, Japanese Patent Application Laid-Open No. 63-298339, M.D. P.
  • S-triazine compounds S-triazine compounds
  • an organic borate compound can also be applied.
  • the organic borate compound include JP-A-62-143044, JP-A-62-150242, JP-A-9-188685, JP-A-9-188686, JP-A-9-188710, and JP-A-2000. -131837, JP-A-2002-107916, Japanese Patent No. 2764769, Japanese Patent Application No. 2000-310808, etc., and Kunz, Martin "Rad Tech '98. Proceeding Compound 19-22, 1998, Chicago" and the like.
  • Specific examples thereof include organic boron transition metal coordination complexes of JP-A-7-140589, JP-A-7-306527, and JP-A-7-292014.
  • a disulfone compound can also be applied as a photoacid generator.
  • examples of the disulfone compound include compounds described in JP-A-61-166544, Japanese Patent Application Laid-Open No. 2001-132318, and diazodisulfone compounds.
  • onium salt compound examples include S.I. I. Schlesinger, Photogr. Sci. Eng. , 18,387 (1974), T.K. S. The diazonium salt described in Bal et al, Polymer, 21, 423 (1980), the ammonium salt described in US Pat. No. 4,069,055, JP-A-4-365549, etc., US Pat. No. 4,069, Phosphonium salts described in 055, 4,069,056, European Patents 104, 143, US Patents 339,049, 410,201, JP-A-2. -150848, Iodonium salt described in JP-A-2-296514, European Patent Nos.
  • onium salts examples include onium salts represented by the following general formulas (RI-I) to (RI-III).
  • Ar 11 represents an aryl group having 20 or less carbon atoms which may have 1 to 6 substituents, and preferred substituents are an alkyl group having 1 to 12 carbon atoms and 1 carbon number.
  • Z11 - represents a monovalent anion, a halogen ion, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonate ion, sulfinate ion, thiosulfonate ion, sulfate ion, surface stability
  • Perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonic acid ion, sulfinate ion are preferable.
  • Ar 21 and Ar 22 each represent an aryl group having 20 or less carbon atoms which may independently have 1 to 6 substituents, and preferred substituents have 1 to 12 carbon atoms.
  • Z 21 - represents a monovalent anion, a halogen ion, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonate ion, sulfinate ion, thiosulfonate ion, sulfate ion, stability, From the viewpoint of reactivity, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonic acid ion, sulfinate ion and carboxylate ion are preferable.
  • R 31 , R 32 , and R 33 each represent an aryl group or an alkyl group, an alkenyl group, or an alkynyl group having 20 or less carbon atoms which may independently have 1 to 6 substituents.
  • an aryl group from the viewpoint of reactivity and stability.
  • Preferred substituents include an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms, an alkynyl group having 1 to 12 carbon atoms, an aryl group having 1 to 12 carbon atoms, and an alkoxy group having 1 to 12 carbon atoms.
  • Examples thereof include a group, a cyano group, a sulfonyl group, a thioalkyl group having 1 to 12 carbon atoms, and a thioaryl group having 1 to 12 carbon atoms.
  • Z31 - represents a monovalent anion, a halogen ion, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonate ion, sulfinate ion, thiosulfonate ion, sulfate ion, stability, reaction From the viewpoint of properties, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonic acid ion, sulfinate ion and carboxylate ion are preferable.
  • the content thereof is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the composition of the present invention. It is more preferably 2 to 15% by mass. Only one type of photoacid generator may be contained, or two or more types may be contained. When two or more photoacid generators are contained, the total is preferably in the above range.
  • the curable resin composition of the present invention may contain a photobase generator as a photosensitizer.
  • a photobase generator as a photosensitizer.
  • the curable resin composition contains a photobase generator and a cross-linking agent described later, for example, the cyclization of the specific resin is promoted by the base generated in the exposed portion, and the cross-linking reaction of the cross-linking agent is promoted. It is also possible to make the exposed portion more difficult to be removed by the developing solution than the non-exposed portion due to such an action. According to such an aspect, a negative type relief pattern can be obtained.
  • the photobase generator is not particularly limited as long as it generates a base by exposure, and known ones can be used.
  • M. Shirai, and M. Tsunooka Prog. Polym. Sci. , 21, 1 (1996); Masahiro Kakuoka, Polymer Processing, 46, 2 (1997); C.I. Kutal, Code. Chem. Rev. , 211,353 (2001); Y. Kaneko, A.M. Sarker, and D. Neckers, Chem. Mater. , 11, 170 (1999); Tachi, M. et al. Shirai, and M. Tsunooka, J. et al. Photopolym. Sci. Technol. , 13, 153 (2000); Winkle, and K.
  • Ionic compounds whose base components are neutralized by forming salts and nonionic compounds whose base components are latent by urethane bonds or oxime bonds such as carbamate derivatives, oxime ester derivatives, and acyl compounds.
  • carbamate derivatives, amide derivatives, imide derivatives, ⁇ -cobalt complexes, imidazole derivatives, cinnamic acid amide derivatives, oxime derivatives and the like are more preferable examples.
  • the basic substance generated from the photobase generator is not particularly limited, and examples thereof include compounds having an amino group, particularly monoamines, polyamines such as diamines, and amidines. From the viewpoint of the imidization ratio, the basic substance preferably has a large pKa in DMSO (dimethyl sulfoxide) of the conjugate acid.
  • the pKa is preferably 1 or more, and more preferably 3 or more.
  • the upper limit of the pKa is not particularly limited, but is preferably 20 or less.
  • pKa represents the logarithm of the reciprocal of the first dissociation constant of the acid
  • Determination of Organic Structures by Physical Methods author: Brown, HC, McDaniel, DH, Hafliger, O., Nachod, FC; You can refer to the values described in Braude, EA, Nachod, FC; Academic Press, New York, 1955) and Data for Biochemical Research (author: Dawson, RMCet al; Oxford, Clarendon Press, 1959).
  • ACD / pKa manufactured by ACD / Labs
  • the photobase generator is preferably a photobase generator that does not contain a salt in the structure, and the nitrogen atom of the base portion generated in the photobase generator. It is preferable that there is no charge on the top.
  • the photobase generator it is preferable that the generated base is latent using a covalent bond, and the mechanism of base generation is such that the covalent bond between the nitrogen atom of the generated base portion and the adjacent atom is cleaved. It is preferable that the base is generated.
  • the photobase generator does not contain a salt in the structure, the photobase generator can be neutralized, so that the solvent solubility is better and the pot life is improved.
  • the amine generated from the photobase generator used in the present invention is preferably a primary amine or a secondary amine.
  • the photobase generator is preferably a photobase generator containing a salt in the structure.
  • the base generated as described above is latent using a covalent bond, and the generated base has an amide bond, a carbamate bond, and an oxime bond. It is preferably latent using.
  • the photobase generator according to the present invention include a photobase generator having a cinnamic acid amide structure as disclosed in JP-A-2009-08452 and JP-A-2009 / 123122, JP-A-2006-189591.
  • Examples thereof include a photobase generator having an oxime structure, but the present invention is not limited to these, and other known photobase generator structures can be used.
  • the photobase generator the compounds described in paragraphs 0185 to 0188, 0199 to 0200 and 0202 of JP2012-093746, and the compounds described in paragraphs 0022 to 0069 of JP2013-194205.
  • Examples thereof include the compounds described in paragraphs 0026 to 0074 of JP2013-204319A, and the compounds described in paragraph number 0052 of International Publication No. 2010/064631.
  • a commercially available product may be used as the photobase generator.
  • Commercially available products include WPBG-266, WPBG-300, WPGB-345, WPGB-140, WPBG-165, WPBG-027, WPBG-018, WPGB-015, WPBG-041, WPGB-172, WPGB-174, WPBG. -166, WPGB-158, WPGB-025, WPGB-168, WPGB-167, WPBG-082 (all manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.), A2502, B5085, N0528, N1052, O0396, O0447, O0448 ( (Made by Tokyo Chemical Industry Co., Ltd.) and the like.
  • the content thereof is preferably 0.1 to 30% by mass, preferably 0.1 to 20% by mass, based on the total solid content of the curable resin composition of the present invention. Is more preferable, and 2 to 15% by mass is further preferable. Only one type of photobase generator may be contained, or two or more types may be contained. When two or more photobase generators are contained, the total is preferably in the above range.
  • the composition of the present invention may contain a thermal polymerization initiator, and in particular, a thermal radical polymerization initiator.
  • a thermal radical polymerization initiator is a compound that generates radicals by heat energy to initiate or accelerate the polymerization reaction of a polymerizable compound. By adding the thermal radical polymerization initiator, the polymerization reaction of the resin and the cross-linking agent can be allowed to proceed in the heating step described later, so that the solvent resistance can be further improved.
  • thermal radical polymerization initiator examples include the compounds described in paragraphs 0074 to 0118 of JP-A-2008-063554.
  • the content thereof is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the composition of the present invention. More preferably, it is 0.5 to 15% by mass. Only one type of thermal polymerization initiator may be contained, or two or more types may be contained. When two or more kinds of thermal polymerization initiators are contained, the total amount is preferably in the above range.
  • the composition of the present invention may contain a thermoacid generator.
  • the thermoacid generator generates an acid by heating and promotes a cross-linking reaction of at least one compound selected from a compound having a hydroxymethyl group, an alkoxymethyl group or an acyloxymethyl group, an epoxy compound, an oxetane compound and a benzoxazine compound. It has the effect of making it.
  • the thermal decomposition start temperature of the thermal acid generator is preferably 50 ° C. to 270 ° C., more preferably 50 ° C. to 250 ° C. Further, no acid is generated during drying (pre-baking: about 70 to 140 ° C.) after the composition is applied to the substrate, and during final heating (cure: about 100 to 400 ° C.) after patterning by subsequent exposure and development. It is preferable to select an acid-generating agent as the thermal acid generator because it can suppress a decrease in sensitivity during development.
  • the thermal decomposition start temperature is obtained as the peak temperature of the exothermic peak, which is the lowest temperature when the thermoacid generator is heated to 500 ° C. at 5 ° C./min in a pressure-resistant capsule. Examples of the device used for measuring the thermal decomposition start temperature include Q2000 (manufactured by TA Instruments).
  • the acid generated from the thermoacid generator is preferably a strong acid, for example, aryl sulfonic acid such as p-toluene sulfonic acid and benzene sulfonic acid, alkyl sulfonic acid such as methane sulfonic acid, ethane sulfonic acid and butane sulfonic acid, or trifluoromethane.
  • aryl sulfonic acid such as p-toluene sulfonic acid and benzene sulfonic acid
  • alkyl sulfonic acid such as methane sulfonic acid, ethane sulfonic acid and butane sulfonic acid
  • haloalkyl sulfonic acid such as sulfonic acid is preferable.
  • thermoacid generator include those described in paragraph 0055 of JP2013-072935A.
  • thermoacid generator the compound described in paragraph 0059 of JP2013-167742A is also preferable as the thermoacid generator.
  • the content of the thermoacid generator is preferably 0.01 part by mass or more, and more preferably 0.1 part by mass or more with respect to 100 parts by mass of the specific resin.
  • the content of the thermoacid generator is preferably 0.01 part by mass or more, and more preferably 0.1 part by mass or more with respect to 100 parts by mass of the specific resin.
  • 0.01 part by mass or more By containing 0.01 part by mass or more, the cross-linking reaction is promoted, so that the mechanical properties and solvent resistance of the organic film can be further improved.
  • 20 parts by mass or less is preferable, 15 parts by mass or less is more preferable, and 10 parts by mass or less is further preferable.
  • the curable resin composition of the present invention may further contain an onium salt.
  • the curable resin composition of the present invention contains a polyimide precursor or a polybenzoxazole precursor as a specific resin, it preferably contains an onium salt.
  • the type of onium salt and the like are not particularly specified, but ammonium salt, iminium salt, sulfonium salt, iodonium salt and phosphonium salt are preferably mentioned.
  • an ammonium salt or an iminium salt is preferable from the viewpoint of high thermal stability
  • a sulfonium salt, an iodonium salt or a phosphonium salt is preferable from the viewpoint of compatibility with a polymer.
  • the onium salt is a salt of a cation and an anion having an onium structure, and the cation and anion may or may not be bonded via a covalent bond. .. That is, the onium salt may be an intramolecular salt having a cation portion and an anion portion in the same molecular structure, or a cation molecule and an anion molecule, which are different molecules, are ionically bonded. It may be an intermolecular salt, but it is preferably an intermolecular salt. Further, in the curable resin composition of the present invention, the cation portion or the cation molecule and the anion portion or the anion molecule may be bonded or dissociated by an ionic bond.
  • an ammonium cation, a pyridinium cation, a sulfonium cation, an iodonium cation or a phosphonium cation is preferable, and at least one cation selected from the group consisting of a tetraalkylammonium cation, a sulfonium cation and an iodonium cation is more preferable.
  • the onium salt used in the present invention may be a thermobase generator described later.
  • the thermal base generator refers to a compound that generates a base by heating, and examples thereof include a compound that generates a base when heated to 40 ° C. or higher.
  • Examples of the onium salt include the onium salt described in paragraphs 0122 to 0138 of International Publication No. 2018/043262.
  • onium salts used in the field of polyimide precursors can be used without particular limitation.
  • the content of the onium salt is preferably 0.1 to 50% by mass with respect to the total solid content of the curable resin composition of the present invention.
  • the lower limit is more preferably 0.5% by mass or more, further preferably 0.85% by mass or more, and even more preferably 1% by mass or more.
  • the upper limit is more preferably 30% by mass or less, further preferably 20% by mass or less, further preferably 10% by mass or less, 5% by mass or less, or 4% by mass or less.
  • the onium salt one kind or two or more kinds can be used. When two or more kinds are used, the total amount is preferably in the above range.
  • the curable resin composition of the present invention may further contain a thermosetting agent.
  • a thermosetting agent when the curable resin composition of the present invention contains a polyimide precursor or a polybenzoxazole precursor as the specific resin, it is preferable to contain a thermosetting agent.
  • the other thermobase generator may be a compound corresponding to the above-mentioned onium salt, or may be a thermobase generator other than the above-mentioned onium salt.
  • Examples of the thermobase generator other than the above-mentioned onium salt include nonionic thermobase generators. Examples of the nonionic thermobase generator include compounds represented by the formula (B1) or the formula (B2).
  • Rb 1 , Rb 2 and Rb 3 are independently organic groups, halogen atoms or hydrogen atoms having no tertiary amine structure. However, Rb 1 and Rb 2 do not become hydrogen atoms at the same time. Further, none of Rb 1 , Rb 2 and Rb 3 has a carboxy group.
  • the tertiary amine structure refers to a structure in which all three bonds of a trivalent nitrogen atom are covalently bonded to a hydrocarbon-based carbon atom. Therefore, this does not apply when the bonded carbon atom is a carbon atom forming a carbonyl group, that is, when an amide group is formed together with a nitrogen atom.
  • Rb 1 , Rb 2 and Rb 3 contains a cyclic structure, and it is more preferable that at least two of them contain a cyclic structure.
  • the cyclic structure may be either a monocyclic ring or a condensed ring, and a monocyclic ring or a condensed ring in which two monocyclic rings are condensed is preferable.
  • the single ring is preferably a 5-membered ring or a 6-membered ring, and preferably a 6-membered ring.
  • a cyclohexane ring and a benzene ring are preferable, and a cyclohexane ring is more preferable.
  • Rb 1 and Rb 2 are hydrogen atoms, alkyl groups (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms), and alkenyl groups (preferably 2 to 24 carbon atoms). , 2-18 is more preferred, 3-12 is more preferred), aryl groups (6-22 carbons are preferred, 6-18 are more preferred, 6-10 are more preferred), or arylalkyl groups (7 carbons). ⁇ 25 is preferable, 7 to 19 is more preferable, and 7 to 12 is even more preferable). These groups may have substituents as long as the effects of the present invention are exhibited. Rb 1 and Rb 2 may be coupled to each other to form a ring.
  • Rb 1 and Rb 2 are particularly linear, branched, or cyclic alkyl groups that may have substituents (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms). It is more preferably a cycloalkyl group which may have a substituent (preferably 3 to 24 carbon atoms, more preferably 3 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms) and having a substituent.
  • a cyclohexyl group which may be used is more preferable.
  • an alkyl group preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, further preferably 3 to 12 carbon atoms
  • an aryl group preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, 6 to 6.
  • alkoxy group (2 to 24 carbon atoms are preferable, 2 to 12 is more preferable, 2 to 6 is more preferable
  • arylalkyl group (7 to 23 carbon atoms is preferable, 7 to 19 is more preferable).
  • an arylalkenyl group (8 to 24 carbon atoms is preferable, 8 to 20 is more preferable, 8 to 16 is more preferable), and an alkoxyl group (1 to 24 carbon atoms is preferable, 2 to 2 to 24).
  • 18 is more preferable, 3 to 12 is more preferable), an aryloxy group (6 to 22 carbon atoms is preferable, 6 to 18 is more preferable, 6 to 12 is more preferable), or an arylalkyloxy group (7 to 12 carbon atoms is more preferable).
  • 23 is preferable, 7 to 19 is more preferable, and 7 to 12 is further preferable).
  • a cycloalkyl group (preferably having 3 to 24 carbon atoms, more preferably 3 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms), an arylalkenyl group, and an arylalkyloxy group are preferable.
  • Rb 3 may further have a substituent as long as the effects of the present invention are exhibited.
  • the compound represented by the formula (B1) is preferably a compound represented by the following formula (B1-1) or the following formula (B1-2).
  • Rb 11 and Rb 12 , and Rb 31 and Rb 32 are the same as Rb 1 and Rb 2 in the formula (B1), respectively.
  • Rb 13 has an alkyl group (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, further preferably 3 to 12 carbon atoms) and an alkenyl group (preferably 2 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, 3 to 12 carbon atoms). Is more preferable), an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, further preferably 6 to 12 carbon atoms), an arylalkyl group (preferably 7 to 23 carbon atoms, more preferably 7 to 19 carbon atoms). 7 to 12 is more preferable), and a substituent may be provided as long as the effects of the present invention are exhibited. Of these, Rb 13 is preferably an arylalkyl group.
  • Rb 33 and Rb 34 independently have a hydrogen atom, an alkyl group (preferably 1 to 12 carbon atoms, more preferably 1 to 8 carbon atoms, still more preferably 1 to 3 carbon atoms), and an alkenyl group (preferably 2 to 12 carbon atoms).
  • Rb 33 and Rb 34 independently have a hydrogen atom, an alkyl group (preferably 1 to 12 carbon atoms, more preferably 1 to 8 carbon atoms, still more preferably 1 to 3 carbon atoms), and an alkenyl group (preferably 2 to 12 carbon atoms).
  • 2 to 8 are more preferable, 2 to 3 are more preferable
  • aryl groups (6 to 22 carbon atoms are preferable, 6 to 18 are more preferable, 6 to 10 are more preferable
  • 23 is preferable, 7 to 19 is more preferable, and 7 to 11 is even more preferable), and a hydrogen atom is preferable.
  • Rb 35 is an alkyl group (preferably 1 to 24 carbon atoms, more preferably 1 to 12 carbon atoms, further preferably 3 to 8 carbon atoms), an alkenyl group (preferably 2 to 12 carbon atoms, more preferably 2 to 10 carbon atoms, 3 to 10 carbon atoms). 8 is more preferable), aryl group (6 to 22 carbon atoms is preferable, 6 to 18 is more preferable, 6 to 12 is more preferable), arylalkyl group (7 to 23 carbon atoms is preferable, 7 to 19 is more preferable). , 7-12 is more preferable), and an aryl group is preferable.
  • the compound represented by the formula (B1-1) is also preferable.
  • Rb 11 and Rb 12 have the same meanings as Rb 11 and Rb 12 in the formula (B1-1).
  • Rb 15 and Rb 16 are a hydrogen atom, an alkyl group (preferably 1 to 12 carbon atoms, more preferably 1 to 6 carbon atoms, further preferably 1 to 3 carbon atoms), and an alkenyl group (preferably 2 to 12 carbon atoms, 2 to 6 carbon atoms). More preferably, 2 to 3 are more preferable), an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, further preferably 6 to 10 carbon atoms), and an arylalkyl group (preferably 7 to 23 carbon atoms, 7).
  • Rb 17 is an alkyl group (preferably 1 to 24 carbon atoms, more preferably 1 to 12 carbon atoms, further preferably 3 to 8 carbon atoms), an alkenyl group (preferably 2 to 12 carbon atoms, more preferably 2 to 10 carbon atoms, 3 to 8 carbon atoms). Is more preferable), an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, further preferably 6 to 12 carbon atoms), an arylalkyl group (preferably 7 to 23 carbon atoms, more preferably 7 to 19 carbon atoms). 7 to 12 is more preferable), and an aryl group is particularly preferable.
  • the molecular weight of the nonionic thermobase generator is preferably 800 or less, more preferably 600 or less, and even more preferably 500 or less.
  • the lower limit is preferably 100 or more, more preferably 200 or more, and even more preferably 300 or more.
  • thermo base generators or specific examples of thermal base generators other than the above-mentioned onium salts include the following compounds.
  • the content of the other thermosetting agent is preferably 0.1 to 50% by mass with respect to the total solid content of the curable resin composition of the present invention.
  • the lower limit is more preferably 0.5% by mass or more, and further preferably 1% by mass or more.
  • the upper limit is more preferably 30% by mass or less, further preferably 20% by mass or less.
  • the thermobase generator one kind or two or more kinds can be used. When two or more kinds are used, the total amount is preferably in the above range.
  • the curable resin composition of the present invention preferably contains a cross-linking agent.
  • the cross-linking agent include radical cross-linking agents and other cross-linking agents.
  • the curable resin composition of the present invention preferably further contains a radical cross-linking agent.
  • the radical cross-linking agent is a compound having a radically polymerizable group.
  • a group containing an ethylenically unsaturated bond is preferable.
  • the group containing an ethylenically unsaturated bond include a group having an ethylenically unsaturated bond such as a vinyl group, an allyl group, a vinylphenyl group, and a (meth) acryloyl group.
  • the (meth) acryloyl group is preferable as the group containing the ethylenically unsaturated bond, and the (meth) acryloyl group is more preferable from the viewpoint of reactivity.
  • the radical cross-linking agent may be a compound having one or more ethylenically unsaturated bonds, but a compound having two or more ethylenically unsaturated bonds is more preferable.
  • the compound having two ethylenically unsaturated bonds is preferably a compound having two groups containing the above ethylenically unsaturated bonds.
  • the curable resin composition of the present invention preferably contains a compound having three or more ethylenically unsaturated bonds as a radical cross-linking agent.
  • the compound having 3 or more ethylenically unsaturated bonds a compound having 3 to 15 ethylenically unsaturated bonds is preferable, and a compound having 3 to 10 ethylenically unsaturated bonds is more preferable, and 3 to 6 compounds are more preferable.
  • the compound having is more preferable.
  • the compound having 3 or more ethylenically unsaturated bonds is preferably a compound having 3 or more groups containing the ethylenically unsaturated bond, and more preferably a compound having 3 to 15 ethylenically unsaturated bonds.
  • a compound having 3 to 10 is more preferable, and a compound having 3 to 6 is particularly preferable.
  • the curable resin composition of the present invention contains a compound having two ethylenically unsaturated bonds and a compound having three or more ethylenically unsaturated bonds. It is also preferable.
  • the molecular weight of the radical cross-linking agent is preferably 2,000 or less, more preferably 1,500 or less, and even more preferably 900 or less.
  • the lower limit of the molecular weight of the radical cross-linking agent is preferably 100 or more.
  • radical cross-linking agent examples include unsaturated carboxylic acids (for example, acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid, etc.), esters thereof, and amides, which are preferably unsuitable.
  • an addition reaction product of an unsaturated carboxylic acid ester or amide having a nucleophilic substituent such as a hydroxy group, an amino group or a sulfanyl group with a monofunctional or polyfunctional isocyanate or an epoxy, or a monofunctional or polyfunctional group.
  • a dehydration condensation reaction product with a functional carboxylic acid is also preferably used.
  • an addition reaction product of an unsaturated carboxylic acid ester or amide having a parentionic substituent such as an isocyanate group or an epoxy group with a monofunctional or polyfunctional alcohol, an amine or a thiol, and a halogeno group.
  • Substitution reaction products of unsaturated carboxylic acid esters or amides having a releasable substituent such as tosyloxy group and monofunctional or polyfunctional alcohols, amines and thiols are also suitable.
  • radical cross-linking agent a compound having a boiling point of 100 ° C. or higher under normal pressure is also preferable.
  • examples are polyethylene glycol di (meth) acrylate, trimethyl ethanetri (meth) acrylate, neopentyl glycol di (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol.
  • a compound obtained by adding ethylene oxide or propylene oxide to a functional alcohol and then (meth) acrylated, is described in JP-A-48-041708, JP-A-50-006034, and JP-A-51-0371993.
  • Urethane (meth) acrylates such as those described in JP-A-48-064183, JP-A-49-043191, and JP-A-52-030490, the polyester acrylates, epoxy resins and (meth) acrylics. Examples thereof include polyfunctional acrylates and methacrylates such as epoxy acrylates which are reaction products with acids, and mixtures thereof. Further, the compounds described in paragraphs 0254 to 0257 of JP-A-2008-292970 are also suitable.
  • a polyfunctional (meth) acrylate obtained by reacting a polyfunctional carboxylic acid with a cyclic ether group such as glycidyl (meth) acrylate and a compound having an ethylenically unsaturated bond can also be mentioned.
  • radical cross-linking agent other than the above, it has a fluorene ring and has an ethylenically unsaturated bond, which is described in JP-A-2010-160418, JP-A-2010-129825, Patent No. 4364216 and the like.
  • Compounds having two or more radicals and cardo resins can also be used.
  • dipentaerythritol triacrylate (commercially available KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetraacrylate (commercially available KAYARAD D-320; Nihon Kayaku Co., Ltd.) ), A-TMMT: Shin-Nakamura Chemical Industry Co., Ltd.), Dipentaerythritol penta (meth) acrylate (commercially available KAYARAD D-310; Nippon Kayaku Co., Ltd.), Dipentaerythritol hexa (meth) ) Acrylate (commercially available KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd., A-DPH; manufactured by Shin-Nakamura Chemical Industry Co., Ltd.), and these (meth) acryloyl groups are mediated by ethylene glycol residues or propylene glycol residues. A structure that is bonded together is preferable
  • SR-494 which is a tetrafunctional acrylate having four ethyleneoxy chains manufactured by Sartmer
  • SR-209 manufactured by Sartmer which is a bifunctional methacrylate having four ethyleneoxy chains.
  • DPCA-60 a hexafunctional acrylate having 6 pentyleneoxy chains manufactured by Nippon Kayaku Co., Ltd.
  • TPA-330 a trifunctional acrylate having 3 isobutyleneoxy chains
  • urethane oligomer UAS-10 are examples of the radical cross-linking agent.
  • UAB-140 (manufactured by Nippon Paper Co., Ltd.), NK ester M-40G, NK ester 4G, NK ester M-9300, NK ester A-9300, UA-7200 (manufactured by Shin-Nakamura Chemical Industry Co., Ltd.), DPHA-40H (Japan) Chemicals (manufactured by Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600 (manufactured by Kyoeisha Chemical Co., Ltd.), Blemmer PME400 (manufactured by Nichiyu Co., Ltd.), etc. Can be mentioned.
  • radical cross-linking agent examples include urethane acrylates as described in Japanese Patent Publication No. 48-041708, Japanese Patent Application Laid-Open No. 51-037193, Japanese Patent Application Laid-Open No. 02-032293, and Japanese Patent Application Laid-Open No. 02-016765.
  • Urethane compounds having an ethylene oxide-based skeleton described in Japanese Patent Publication No. 58-049860, Japanese Patent Publication No. 56-017654, Japanese Patent Publication No. 62-039417, and Japanese Patent Publication No. 62-039418 are also suitable.
  • radical cross-linking agent compounds having an amino structure or a sulfide structure in the molecule, which are described in JP-A-63-277653, JP-A-63-260909, and JP-A-01-105238, are used. You can also do it.
  • the radical cross-linking agent may be a radical cross-linking agent having an acid group such as a carboxy group or a phosphoric acid group.
  • the radical cross-linking agent having an acid group is preferably an ester of an aliphatic polyhydroxy compound and an unsaturated carboxylic acid, and an acid group is obtained by reacting an unreacted hydroxy group of the aliphatic polyhydroxy compound with a non-aromatic carboxylic acid anhydride.
  • a radical cross-linking agent provided with is more preferable.
  • the aliphatic polyhydroxy compound is pentaerythritol or dipentaerythritol. Is a compound.
  • examples of commercially available products include M-510 and M-520 as polybasic acid-modified acrylic oligomers manufactured by Toagosei Co., Ltd.
  • the acid value of the radical cross-linking agent having an acid group is preferably 0.1 to 40 mgKOH / g, and particularly preferably 5 to 30 mgKOH / g.
  • the acid value of the radical cross-linking agent is within the above range, it is excellent in manufacturing handleability and further excellent in developability. Moreover, the polymerizable property is good.
  • the acid value of the radical cross-linking agent having an acid group is preferably 0.1 to 300 mgKOH / g, and particularly preferably 1 to 100 mgKOH / g. The acid value is measured according to the description of JIS K 0070: 1992.
  • bifunctional methacrylate or acrylate from the viewpoint of pattern resolution and film elasticity.
  • Specific compounds include triethylene glycol diacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, tetraethylene glycol diacrylate, PEG200 diacrylate, PEG200 dimethacrylate, PEG600 diacrylate, PEG600 dimethacrylate, and polytetraethylene.
  • Glycol diacrylate polytetraethylene glycol dimethacrylate, neopentyl glycol diacrylate, neopentyl glycol dimethacrylate, 3-methyl-1,5-pentanediol diacrylate, 1,6-hexanediol diacrylate, 1,6 hexanediol Dimethacrylate, dimethylol-tricyclodecanediacrylate, dimethylol-tricyclodecanedimethacrylate, EO adduct diacrylate of bisphenol A, EO adduct dimethacrylate of bisphenol A, PO adduct diacrylate of bisphenol A, PO of bisphenol A Additives Dimethacrylate, 2-hydroxy-3-acryloyloxypropyl methacrylate, isocyanuric acid EO-modified diacrylate, isocyanuric acid-modified dimethacrylate, other bifunctional acrylates having urethane bonds, and bifunctional methacrylates
  • the PEG200 diacrylate is a polyethylene glycol diacrylate having a polyethylene glycol chain formula of about 200.
  • a monofunctional radical cross-linking agent can be preferably used as the radical cross-linking agent.
  • the monofunctional radical cross-linking agent include n-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, butoxyethyl (meth) acrylate, carbitol (meth) acrylate, and cyclohexyl (meth).
  • the content thereof is preferably more than 0% by mass and 60% by mass or less with respect to the total solid content of the curable resin composition of the present invention.
  • the lower limit is more preferably 5% by mass or more.
  • the upper limit is more preferably 50% by mass or less, and further preferably 30% by mass or less.
  • One type of radical cross-linking agent may be used alone, or two or more types may be mixed and used. When two or more types are used in combination, the total amount is preferably in the above range.
  • the curable resin composition of the present invention preferably contains another cross-linking agent different from the radical cross-linking agent described above.
  • the other cross-linking agent refers to a cross-linking agent other than the above-mentioned radical cross-linking agent, and a covalent bond is formed with another compound in the composition or a reaction product thereof by exposure to the above-mentioned photosensitizer.
  • the compound has a plurality of groups in the molecule for which the reaction to be formed is promoted, and the reaction of forming a covalent bond with another compound in the composition or a reaction product thereof is the action of an acid or a base.
  • a compound having a plurality of groups promoted by the above in the molecule is preferable.
  • the acid or base is preferably an acid or base generated from a photoacid generator or a photobase generator which is a photosensitizer in the exposure step.
  • a compound having at least one group selected from the group consisting of a methylol group and an alkoxymethyl group is preferable, and at least one group selected from the group consisting of a methylol group and an alkoxymethyl group is preferable.
  • a compound having a structure directly bonded to a nitrogen atom is more preferable.
  • an amino group-containing compound such as melamine, glycoluril, urea, alkylene urea, or benzoguanamine is reacted with formaldehyde or formaldehyde and alcohol, and the hydrogen atom of the amino group is changed to a methylol group or an alkoxymethyl group.
  • examples thereof include compounds having a substituted structure.
  • the method for producing these compounds is not particularly limited, and any compound having the same structure as the compound produced by the above method may be used. Further, it may be an oligomer formed by self-condensing the methylol groups of these compounds.
  • the cross-linking agent using melamine is a melamine-based cross-linking agent
  • the cross-linking agent using glycoluril, urea or alkylene urea is a urea-based cross-linking agent
  • the cross-linking agent using alkylene urea is an alkylene urea-based cross-linking agent.
  • a cross-linking agent using an agent or benzoguanamine is called a benzoguanamine-based cross-linking agent.
  • the curable resin composition of the present invention preferably contains at least one compound selected from the group consisting of a urea-based cross-linking agent and a melamine-based cross-linking agent, and preferably contains a glycoluril-based cross-linking agent and melamine, which will be described later. It is more preferable to contain at least one compound selected from the group consisting of system cross-linking agents.
  • melamine-based cross-linking agent examples include hexamethoxymethylmelamine, hexaethoxymethylmelamine, hexapropoxymethylmelamine, hexabutoxybutyl melamine and the like.
  • urea-based cross-linking agent examples include monohydroxymethylated glycol uryl, dihydroxymethylated glycol uryl, trihydroxymethylated glycol uryl, tetrahydroxymethylated glycol uryl, monomethoxymethylated glycol uryl, and dimethoxymethylated glycol uryl.
  • Glycoluryl-based cross-linking agent such as bismethoxymethylurea, bisethoxymethylurea, bispropoxymethylurea, and bisbutoxymethylurea, Monohydroxymethylated ethylene urea or dihydroxymethylated ethylene urea, monomethoxymethylated ethylene urea, dimethoxymethylated ethylene urea, monoethoxymethylated ethylene urea, diethoxymethylated ethylene urea, monopropoxymethylated ethylene urea, dipropoxymethyl Ethyleneurea-based cross-linking agents such as ethyleneureated ethyleneurea, monobutoxymethylated ethyleneurea, or dibutoxymethylated ethyleneurea, Monohydroxymethylated propylene urea, dihydroxymethylated propylene urea, monomethoxymethylated propylene urea, dimethoxymethylated propylene urea, monodiethoxymethylated propylene urea, diethoxymethylated propylene urea,
  • benzoguanamine-based cross-linking agent examples include monohydroxymethylated benzoguanamine, dihydroxymethylated benzoguanamine, trihydroxymethylated benzoguanamine, tetrahydroxymethylated benzoguanamine, monomethoxymethylated benzoguanamine, dimethoxymethylated benzoguanamine, and trimethoxymethylated benzoguanamine.
  • Tetramethoxymethylated benzoguanamine Tetramethoxymethylated benzoguanamine, monomethoxymethylated benzoguanamine, dimethoxymethylated benzoguanamine, trimethoxymethylated benzoguanamine, tetraethoxymethylated benzoguanamine, monopropoxymethylated benzoguanamine, dipropoxymethylated benzoguanamine, tripropoxymethylated benzoguanamine, tetrapropoxy Methylated benzoguanamine, monobutoxymethylated benzoguanamine, dibutoxymethylated benzoguanamine, tributoxymethylated benzoguanamine, tetrabutoxymethylated benzoguanamine and the like can be mentioned.
  • a compound having at least one group selected from the group consisting of a methylol group and an alkoxymethyl group at least one selected from the group consisting of a methylol group and an alkoxymethyl group on an aromatic ring (preferably a benzene ring).
  • Compounds to which the seed groups are directly attached are also preferably used. Specific examples of such compounds include benzenedimethanol, bis (hydroxymethyl) cresol, bis (hydroxymethyl) dimethoxybenzene, bis (hydroxymethyl) diphenyl ether, bis (hydroxymethyl) benzophenone, and hydroxymethylphenyl hydroxymethylbenzoate.
  • suitable commercially available products include 46DMOC, 46DMOEP (all manufactured by Asahi Organic Materials Industry Co., Ltd.), DML-PC, DML-PEP, DML-OC, and DML-OEP.
  • DML-34X DML-PTBP, DML-PCHP, DML-OCHP, DML-PFP, DML-PSBP, DML-POP, DML-MBOC, DML-MBPC, DML-MTrisPC, DML-BisOC-Z, DML-BisOCHP -Z, DML-BPC, DMLBisOC-P, DMOM-PC, DMOM-PTBP, DMOM-MBPC, TriML-P, TriML-35XL, TML-HQ, TML-BP, TML-pp-BPF, TML-BPE, TML -BPA, TML-BPAF, TML-BPAP, TMOM-BP, TMOM-BPE, TMOM-BPA, TMOM-BPAF, TMOM-BPAP, HML-TPPHBA, HML-TPHAP, HMOM-TPPHBA, HMOM-TPHAP (above, Honshu) Nikalac (registered trademark, the same applies
  • the curable resin composition of the present invention preferably contains at least one compound selected from the group consisting of an epoxy compound, an oxetane compound, and a benzoxazine compound as another cross-linking agent.
  • Epoxy compound (compound having an epoxy group)
  • the epoxy compound is preferably a compound having two or more epoxy groups in one molecule.
  • the epoxy group undergoes a cross-linking reaction at 200 ° C. or lower, and the dehydration reaction derived from the cross-linking does not occur, so that film shrinkage is unlikely to occur. Therefore, the inclusion of the epoxy compound is effective in suppressing low-temperature curing and warpage of the curable resin composition.
  • the epoxy compound preferably contains a polyethylene oxide group.
  • the polyethylene oxide group means that the number of repeating units of ethylene oxide is 2 or more, and the number of repeating units is preferably 2 to 15.
  • epoxy compounds include bisphenol A type epoxy resin; bisphenol F type epoxy resin; propylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, ethylene glycol diglycidyl ether, butylene glycol diglycidyl ether, hexamethylene glycol diglycidyl ether. , Trimethylol propantriglycidyl ether and other alkylene glycol type epoxy resins or polyhydric alcohol hydrocarbon type epoxy resins; polypropylene glycol diglycidyl ether and other polyalkylene glycol type epoxy resins; polymethyl (glycidyloxypropyl) siloxane and other epoxy groups Examples include, but are not limited to, containing silicones.
  • oxetane compound compound having an oxetanyl group
  • examples of the oxetane compound include compounds having two or more oxetane rings in one molecule, 3-ethyl-3-hydroxymethyloxetane, 1,4-bis ⁇ [(3-ethyl-3-oxetanyl) methoxy] methyl ⁇ benzene, and the like.
  • examples thereof include 3-ethyl-3- (2-ethylhexylmethyl) oxetane, 1,4-benzenedicarboxylic acid-bis [(3-ethyl-3-oxetanyl) methyl] ester and the like.
  • the Aron Oxetane series manufactured by Toagosei Co., Ltd. (for example, OXT-121, OXT-221, OXT-191, OXT-223) can be preferably used, and these can be used alone. Alternatively, two or more types may be mixed.
  • Benzoxazine compound (compound having a benzoxazolyl group) Since the benzoxazine compound is a cross-linking reaction derived from the ring-opening addition reaction, degassing does not occur during curing, and heat shrinkage is further reduced to suppress the occurrence of warpage, which is preferable.
  • benzoxazine compound examples include BA type benzoxazine, Bm type benzoxazine, Pd type benzoxazine, FA type benzoxazine (trade name, manufactured by Shikoku Kasei Kogyo Co., Ltd.), poly.
  • examples thereof include a benzoxazine adduct of a hydroxystyrene resin and a phenol novolac type dihydrobenzoxazine compound. These may be used alone or in combination of two or more.
  • the content of the other cross-linking agent is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the curable resin composition of the present invention. It is more preferably 0.5 to 15% by mass, and particularly preferably 1.0 to 10% by mass.
  • the other cross-linking agent may contain only one type, or may contain two or more types. When two or more other cross-linking agents are contained, the total is preferably in the above range.
  • the curable resin composition of the present invention is at least one selected from the group consisting of a compound having a sulfonamide structure and a compound having a thiourea structure. It is preferable to further contain a compound.
  • the sulfonamide structure is a structure represented by the following formula (S-1).
  • R represents a hydrogen atom or an organic group
  • R may be bonded to another structure to form a ring structure
  • * may independently form a binding site with another structure. show.
  • the R is preferably the same group as R 2 in the following formula (S-2).
  • the compound having a sulfonamide structure may be a compound having two or more sulfonamide structures, but a compound having one sulfonamide structure is preferable.
  • the compound having a sulfonamide structure is preferably a compound represented by the following formula (S-2).
  • R 1 , R 2 and R 3 each independently represent a hydrogen atom or a monovalent organic group, and two or more of R 1 , R 2 and R 3 are bonded to each other. It may form a ring structure. It is preferable that R 1 , R 2 and R 3 are independently monovalent organic groups.
  • R 1 , R 2 and R 3 include a hydrogen atom, or an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an alkylsilyl group, an alkoxysilyl group, an aryl group, an aryl ether group, and a carboxy group.
  • examples thereof include a carbonyl group, an allyl group, a vinyl group, a heterocyclic group, or a group in which two or more of these are combined.
  • the alkyl group an alkyl group having 1 to 10 carbon atoms is preferable, and an alkyl group having 1 to 6 carbon atoms is more preferable.
  • alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an isopropyl group, a 2-ethylhexyl group and the like.
  • a cycloalkyl group having 5 to 10 carbon atoms is preferable, and a cycloalkyl group having 6 to 10 carbon atoms is more preferable.
  • examples of the cycloalkyl group include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group and the like.
  • an alkoxy group having 1 to 10 carbon atoms is preferable, and an alkoxy group having 1 to 5 carbon atoms is more preferable.
  • Examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group and the like.
  • As the alkoxysilyl group an alkoxysilyl group having 1 to 10 carbon atoms is preferable, and an alkoxysilyl group having 1 to 4 carbon atoms is more preferable.
  • Examples of the alkoxysilyl group include a methoxysilyl group, an ethoxysilyl group, a propoxysilyl group and a butoxysilyl group.
  • aryl group an aryl group having 6 to 20 carbon atoms is preferable, and an aryl group having 6 to 12 carbon atoms is more preferable.
  • the aryl group may have a substituent such as an alkyl group. Examples of the aryl group include a phenyl group, a tolyl group, a xylyl group and a naphthyl group.
  • heterocyclic group examples include a triazole ring, a pyrrole ring, a furan ring, a thiophene ring, an imidazole ring, an oxazole ring, a thiazole ring, a pyrazole ring, an isooxazole ring, an isothiazole ring, a tetrazole ring, a pyridine ring, a pyridazine ring, and a pyrimididine ring.
  • R 1 is an aryl group and R 2 and R 3 are independently hydrogen atoms or alkyl groups are preferable.
  • Examples of compounds having a sulfonamide structure include benzenesulfonamide, dimethylbenzenesulfonamide, N-butylbenzenesulfonamide, sulfanylamide, o-toluenesulfonamide, p-toluenesulfonamide, hydroxynaphthalenesulfonamide, naphthalene-1.
  • the thiourea structure is a structure represented by the following formula (T-1).
  • R 4 and R 5 each independently represent a hydrogen atom or a monovalent organic group, and R 4 and R 5 may be combined to form a ring structure, where R 4 is.
  • the ring structure may be formed by combining with other structures to which * is bonded, R 5 may be combined with other structures to which * is bonded to form a ring structure, and * may be independently and others. Represents the site of connection with the structure of.
  • R 4 and R 5 are independently hydrogen atoms.
  • R 4 and R 5 include a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an alkylsilyl group, an alkoxysilyl group, an aryl group, an aryl ether group, a carboxy group, and a carbonyl group.
  • examples thereof include an allyl group, a vinyl group, a heterocyclic group, or a group in which two or more of these are combined.
  • the alkyl group an alkyl group having 1 to 10 carbon atoms is preferable, and an alkyl group having 1 to 6 carbon atoms is more preferable.
  • alkyl group examples include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an isopropyl group, a 2-ethylhexyl group and the like.
  • a cycloalkyl group having 5 to 10 carbon atoms is preferable, and a cycloalkyl group having 6 to 10 carbon atoms is more preferable.
  • examples of the cycloalkyl group include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group and the like.
  • an alkoxy group having 1 to 10 carbon atoms is preferable, and an alkoxy group having 1 to 5 carbon atoms is more preferable.
  • Examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group and the like.
  • As the alkoxysilyl group an alkoxysilyl group having 1 to 10 carbon atoms is preferable, and an alkoxysilyl group having 1 to 4 carbon atoms is more preferable.
  • Examples of the alkoxysilyl group include a methoxysilyl group, an ethoxysilyl group, a propoxysilyl group and a butoxysilyl group.
  • aryl group an aryl group having 6 to 20 carbon atoms is preferable, and an aryl group having 6 to 12 carbon atoms is more preferable.
  • the aryl group may have a substituent such as an alkyl group. Examples of the aryl group include a phenyl group, a tolyl group, a xylyl group and a naphthyl group.
  • heterocyclic group examples include a triazole ring, a pyrrole ring, a furan ring, a thiophene ring, an imidazole ring, an oxazole ring, a thiazole ring, a pyrazole ring, an isooxazole ring, an isothiazole ring, a tetrazole ring, a pyridine ring, a pyridazine ring, and a pyrimididine ring.
  • the compound having a thiourea structure may be a compound having two or more thiourea structures, but a compound having one thiourea structure is preferable.
  • the compound having a thiourea structure is preferably a compound represented by the following formula (T-2).
  • R 4 to R 7 each independently represent a hydrogen atom or a monovalent organic group, and at least two of R 4 to R 7 are bonded to each other to form a ring structure. You may.
  • R 4 and R 5 have the same meanings as R 4 and R 5 in formula (T-1), a preferable embodiment thereof is also the same.
  • R 6 and R 7 are independently monovalent organic groups.
  • the preferred embodiment of the monovalent organic group in R 6 and R 7 is the same as the preferred embodiment of the monovalent organic group in R 4 and R 5 in the formula (T-1). ..
  • Examples of compounds having a thiourea structure include N-acetylthiourea, N-allyl thiourea, N-allyl-N'-(2-hydroxyethyl) thiourea, 1-adamantyl thiourea, N-benzoyl thiourea, N, N'-.
  • Diphenylthiourea 1-benzyl-phenylthiourea, 1,3-dibutylthiourea, 1,3-diisopropylthiourea, 1,3-dicyclohexylthiourea, 1- (3- (trimethoxysilyl) propyl) -3-methylthiourea, trimethyl Examples thereof include thiourea, tetramethylthiourea, N, N-diphenylthiourea, ethylenethiourea (2-imidazolinthione), carbimazole, and 1,3-dimethyl-2-thiohydranthin.
  • the total content of the compound having a sulfonamide structure and the compound having a thiourea structure is preferably 0.05 to 10% by mass, preferably 0.1 to 5% by mass, based on the total mass of the curable resin composition of the present invention. It is more preferably%, and further preferably 0.2 to 3% by mass.
  • the curable resin composition of the present invention may contain only one compound selected from the group consisting of a compound having a sulfonamide structure and a compound having a thiourea structure, or may contain two or more compounds. When only one type is contained, the content of the compound is preferably within the above range, and when two or more types are contained, the total amount thereof is preferably within the above range.
  • the curable resin composition of the present invention preferably further contains a migration inhibitor.
  • a migration inhibitor By including the migration inhibitor, it is possible to effectively suppress the movement of metal ions derived from the metal layer (metal wiring) into the photosensitive film.
  • the migration inhibitor is not particularly limited, but has a heterocycle (pyrol ring, furan ring, thiophene ring, imidazole ring, triazole ring, oxazole ring, thiazole ring, pyrazole ring, isooxazole ring, isothiazole ring, tetrazole ring, etc.
  • triazole-based compounds such as 1,2,4-triazole and benzotriazole
  • tetrazole-based compounds such as 1H-tetrazole and 5-phenyltetrazole can be preferably used.
  • an ion trap agent that traps anions such as halogen ions can also be used.
  • Examples of other migration inhibitors include rust preventives described in paragraph 0094 of JP2013-015701, compounds described in paragraphs 0073 to 0076 of JP2009-283711, and JP2011-059656.
  • the compounds described in paragraph 0052, the compounds described in paragraphs 0114, 0116 and 0118 of JP2012-194520A, the compounds described in paragraph 0166 of International Publication No. 2015/199219, and the like can be used.
  • the migration inhibitor include the following compounds.
  • the content of the migration inhibitor is preferably 0.01 to 5.0% by mass with respect to the total solid content of the curable resin composition, and is 0. It is more preferably 0.05 to 2.0% by mass, and further preferably 0.1 to 1.0% by mass.
  • the migration inhibitor may be only one type or two or more types. When there are two or more types of migration inhibitors, the total is preferably in the above range.
  • the curable resin composition of the present invention preferably contains a polymerization inhibitor.
  • polymerization inhibitor examples include hydroquinone, o-methoxyphenol, methoxyhydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, p-tert-butylcatechol (t-butylcatechol), 1, 4-benzoquinone, diphenyl-p-benzoquinone, 4,4'-thiobis (3-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-methyl-6-tert-butylphenol), N-nitroso- N-phenylhydroxyamine aluminum salt, phenothiazine, N-nitrosodiphenylamine, N-phenylnaphthylamine, ethylenediamine tetraacetic acid, 1,2-cyclohexanediamine tetraacetic acid, glycol ether diamine tetraacetic acid, 2,6-di-tert-butyl-4 -Methylphenol, 5-
  • the content of the polymerization inhibitor is 0.01 to 20.0% by mass with respect to the total solid content of the curable resin composition of the present invention. It is preferably 0.01 to 5% by mass, more preferably 0.02 to 3% by mass, and further preferably 0.05 to 2.5% by mass.
  • the polymerization inhibitor may be only one type or two or more types. When there are two or more types of polymerization inhibitors, the total is preferably in the above range.
  • the curable resin composition of the present invention preferably contains a metal adhesiveness improving agent for improving the adhesiveness with a metal material used for electrodes, wiring and the like.
  • a metal adhesiveness improving agent for improving the adhesiveness with a metal material used for electrodes, wiring and the like.
  • the metal adhesion improver include silane coupling agents, aluminum-based adhesive aids, titanium-based adhesive aids, compounds having a sulfonamide structure and compounds having a thiourea structure, phosphoric acid derivative compounds, ⁇ -ketoester compounds, amino compounds and the like. And so on.
  • silane coupling agent examples include the compounds described in paragraph 0167 of International Publication No. 2015/199219, the compounds described in paragraphs 0062 to 0073 of JP-A-2014-191002, paragraphs of International Publication No. 2011/080992.
  • Examples include the compounds described in paragraph 0055. It is also preferable to use two or more different silane coupling agents as described in paragraphs 0050 to 0058 of JP2011-128358A. Further, it is also preferable to use the following compounds as the silane coupling agent.
  • Et represents an ethyl group.
  • silane coupling agents include, for example, vinyltrimethoxysilane, vinyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 3-glycid.
  • Aluminum-based adhesive aid examples include aluminum tris (ethyl acetoacetate), aluminum tris (acetyl acetone), ethyl acetoacetate aluminum diisopropirate, and the like.
  • the compounds described in paragraphs 0046 to 0049 of JP2014-186186A and the sulfide compounds described in paragraphs 0032 to 0043 of JP2013-072935 can also be used.
  • the content of the metal adhesive improving agent is preferably in the range of 0.1 to 30 parts by mass, more preferably 0.5 to 15 parts by mass, and further preferably 0. It is in the range of 5 to 5 parts by mass.
  • the metal adhesiveness improving agent may be only one kind or two or more kinds. When two or more types are used, the total is preferably in the above range.
  • the curable resin composition of the present invention preferably contains a metal adhesiveness improving agent for improving the adhesiveness with a metal material used for electrodes, wiring and the like.
  • a metal adhesiveness improving agent for improving the adhesiveness with a metal material used for electrodes, wiring and the like.
  • the metal adhesiveness improving agent the compounds described in paragraphs 0046 to 0049 of JP2014-186186A and the sulfide compounds described in paragraphs 0032 to 0043 of JP2013-072935 can also be used.
  • the content of the metal adhesion improver is preferably 0.1 to 30 parts by mass, more preferably 0.5 to 15 parts by mass, and further, with respect to 100 parts by mass of the heterocyclic polymer precursor. It is preferably in the range of 0.5 to 5 parts by mass. When it is at least the above lower limit value, the adhesiveness between the pattern and the metal layer after the heating step is good, and when it is at least the above upper limit value, the heat resistance and mechanical properties of the cured product after the heating step are good.
  • the metal adhesiveness improving agent may be only one kind or two or more kinds. When two or more types are used, the total is preferably in the above range.
  • the curable resin composition of the present invention contains various additives such as a sensitizer, a chain transfer agent, a surfactant, a higher fatty acid derivative, and an inorganic particle, if necessary, as long as the effects of the present invention can be obtained.
  • additives such as a sensitizer, a chain transfer agent, a surfactant, a higher fatty acid derivative, and an inorganic particle, if necessary, as long as the effects of the present invention can be obtained.
  • Curing agent, curing catalyst, filler, antioxidant, ultraviolet absorber, anti-aggregation agent and the like can be blended. When these additives are blended, the total blending amount is preferably 3% by mass or less of the solid content of the curable resin composition.
  • the curable resin composition of the present invention may contain a sensitizer.
  • the sensitizer absorbs specific active radiation and becomes an electron-excited state.
  • the sensitizer in the electron-excited state comes into contact with a thermosetting accelerator, a thermal radical polymerization initiator, a photoradical polymerization initiator, or the like, and acts such as electron transfer, energy transfer, and heat generation occur.
  • a thermosetting accelerator, the thermal radical polymerization initiator, and the photoradical polymerization initiator undergo a chemical change and decompose to generate radicals, acids, or bases.
  • sensitizer examples include Michler's ketone, 4,4'-bis (diethylamino) benzophenone, 2,5-bis (4'-diethylaminobenzal) cyclopentane, and 2,6-bis (4'-diethylaminobenzal).
  • the content of the sensitizer may be 0.01 to 20% by mass with respect to the total solid content of the curable resin composition of the present invention. It is preferably 0.1 to 15% by mass, more preferably 0.5 to 10% by mass.
  • the sensitizer may be used alone or in combination of two or more.
  • the curable resin composition of the present invention may contain a chain transfer agent.
  • Chain transfer agents are defined, for example, in the Third Edition of the Polymer Dictionary (edited by the Society of Polymer Science, 2005), pp. 683-684.
  • As the chain transfer agent for example, a group of compounds having SH, PH, SiH, and GeH in the molecule is used. They can donate hydrogen to low-activity radicals to generate radicals, or they can be oxidized and then deprotonated to generate radicals.
  • a thiol compound can be preferably used.
  • the content of the chain transfer agent is 0.01 to 20 parts by mass with respect to 100 parts by mass of the total solid content of the curable resin composition of the present invention.
  • 1 to 10 parts by mass is more preferable, and 1 to 5 parts by mass is further preferable.
  • the chain transfer agent may be only one kind or two or more kinds. When there are two or more types of chain transfer agents, the total is preferably in the above range.
  • a surfactant may be added to the curable resin composition of the present invention from the viewpoint of further improving the coatability.
  • the surfactant various types of surfactants such as fluorine-based surfactants, nonionic surfactants, cationic surfactants, anionic surfactants, and silicone-based surfactants can be used.
  • the following surfactants are also preferable.
  • the parentheses indicating the repeating unit of the main chain represent the content (mol%) of each repeating unit
  • the parentheses indicating the repeating unit of the side chain represent the number of repetitions of each repeating unit.
  • the surfactant the compound described in paragraphs 0159 to 0165 of International Publication No. 2015/199219 can also be used.
  • a fluorine-based surfactant a fluorine-containing polymer having an ethylenically unsaturated group in the side chain can also be used as the fluorine-based surfactant.
  • Specific examples include the compounds described in paragraphs 0050 to 0090 and paragraphs 0289 to 0295 of JP2010-164965, such as Megafuck RS-101, RS-102, RS-718K manufactured by DIC Corporation. Can be mentioned.
  • the fluorine content in the fluorine-based surfactant is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, and particularly preferably 7 to 25% by mass.
  • a fluorine-based surfactant having a fluorine content within this range is effective in terms of uniformity of coating film thickness and liquid saving property, and has good solubility in the composition.
  • silicone-based surfactant examples include Torre Silicone DC3PA, Torre Silicone SH7PA, Torre Silicone DC11PA, Torre Silicone SH21PA, Torre Silicone SH28PA, Torre Silicone SH29PA, Torre Silicone SH30PA, Torre Silicone SH8400 (all, Toray Dow Corning Co., Ltd.).
  • TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (all manufactured by Momentive Performance Materials Co., Ltd.), KP341, KF6001, KF6002 (manufactured by Shin-Etsu Silicone Co., Ltd.) ), BYK307, BYK323, BYK330 (all manufactured by Big Chemie Co., Ltd.) and the like.
  • hydrocarbon-based surfactant examples include Pionin A-76, New Calgen FS-3PG, Pionin B-709, Pionin B-811-N, Pionin D-1004, Pionin D-3104, Pionin D-3605, and Pionin.
  • Nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane and their ethoxylates and propoxylates (eg, glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, etc.
  • organosiloxane polymer KP341 manufactured by Shin-Etsu Chemical Co., Ltd.
  • (meth) acrylic acid-based (co) polymer Polyflow No. 75, No. 77, No. 90, No. 95 manufactured by Kyoeisha Chemical Co., Ltd.
  • W001 manufactured by Yusho Co., Ltd.
  • anionic surfactant examples include W004, W005, W017 (manufactured by Yusho Co., Ltd.), Sandet BL (manufactured by Sanyo Chemical Industries, Ltd.) and the like.
  • the content of the surfactant is 0.001 to 2.0% by mass based on the total solid content of the curable resin composition of the present invention. It is preferably 0.005 to 1.0% by mass, more preferably 0.005 to 1.0% by mass.
  • the surfactant may be only one kind or two or more kinds. When there are two or more types of surfactant, the total is preferably in the above range.
  • the curable resin composition of the present invention has a curable resin composition in the process of drying after application by adding a higher fatty acid derivative such as behenic acid or behenic acid amide in order to prevent polymerization inhibition due to oxygen. It may be unevenly distributed on the surface of an object.
  • a higher fatty acid derivative such as behenic acid or behenic acid amide
  • the content of the higher fatty acid derivative is 0.1 to 10% by mass with respect to the total solid content of the curable resin composition of the present invention. Is preferable.
  • the higher fatty acid derivative may be only one kind or two or more kinds. When there are two or more higher fatty acid derivatives, the total is preferably in the above range.
  • the resin composition of the present invention may contain inorganic particles.
  • specific examples of the inorganic particles include calcium carbonate, calcium phosphate, silica, kaolin, talc, titanium dioxide, alumina, barium sulfate, calcium fluoride, lithium fluoride, zeolite, molybdenum sulfide, and glass.
  • the average particle size of the inorganic particles is preferably 0.01 to 2.0 ⁇ m, more preferably 0.02 to 1.5 ⁇ m, further preferably 0.03 to 1.0 ⁇ m, and 0.04 to 0.5 ⁇ m. Especially preferable.
  • the mechanical properties of the cured film may deteriorate.
  • the average particle size of the inorganic particles exceeds 2.0 ⁇ m, the resolution may decrease due to scattering of exposure light.
  • the composition of the present invention may contain an ultraviolet absorber.
  • an ultraviolet absorber such as salicylate-based, benzophenone-based, benzotriazole-based, substituted acrylonitrile-based, or triazine-based can be used.
  • salicylate-based ultraviolet absorbers include phenyl salicylate, p-octylphenyl salicylate, pt-butylphenyl salicylate and the like
  • benzophenone-based ultraviolet absorbers include 2,2'-dihydroxy-4-.
  • Methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2', 4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 2- Hydroxy-4-octoxybenzophenone and the like can be mentioned.
  • benzotriazole-based ultraviolet absorbers include 2- (2'-hydroxy-3', 5'-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3).
  • Examples of the substituted acrylonitrile-based ultraviolet absorber include ethyl 2-cyano-3,3-diphenylacrylate, 2-ethylhexyl 2-cyano-3,3-diphenylacrylate, and the like.
  • the triazine-based ultraviolet absorber 2- [4-[(2-hydroxy-3-dodecyloxypropyl) oxy] -2-hydroxyphenyl] -4,6-bis (2,4-dimethylphenyl) )-1,3,5-Triazine, 2- [4-[(2-Hydroxy-3-tridecyloxypropyl) oxy] -2-hydroxyphenyl] -4,6-bis (2,4-dimethylphenyl) Mono (hydroxyphenyl) triazine compounds such as -1,3,5-triazine, 2- (2,4-dihydroxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazin
  • the above-mentioned various ultraviolet absorbers may be used alone or in combination of two or more.
  • the composition of the present invention may or may not contain an ultraviolet absorber, but when it is contained, the content of the ultraviolet absorber is 0.001% by mass with respect to the total solid content mass of the composition of the present invention. It is preferably 1% by mass or less, and more preferably 0.01% by mass or more and 0.1% by mass or less.
  • the resin composition of the present embodiment may contain an organic titanium compound. Since the resin composition contains an organic titanium compound, a resin layer having excellent chemical resistance can be formed even when cured at a low temperature.
  • Examples of the organic titanium compound that can be used include those in which an organic group is bonded to a titanium atom via a covalent bond or an ionic bond.
  • Specific examples of the organic titanium compound are shown in I) to VII) below:
  • I) Titanium chelate compound Among them, a titanium chelate compound having two or more alkoxy groups is more preferable because the negative photosensitive resin composition has good storage stability and a good curing pattern can be obtained.
  • Specific examples are titanium bis (triethanolamine) diisopropoxyside, titanium di (n-butoxide) bis (2,4-pentanionate, titanium diisopropoxyside bis (2,4-pentanionate)).
  • Titanium diisopropoxyside bis titanium diisopropoxyside bis (etramethylheptandionate), titanium diisopropoxyside bis (ethylacetacetate) and the like.
  • Titanium Alkoxy Titanium Compounds For example, Titanium Tetra (n-Butoxide), Titanium Tetraethoxide, Titanium Tetra (2-ethylhexoxyside), Titanium Tetraisobutoxide, Titanium Tetraisopropoxyside, Titanium Tetramethoxide.
  • Titanium Tetramethoxypropoxyside Titanium Tetramethylphenoxide, Titanium Tetra (n-Noniloxide), Titanium Tetra (n-Propoxide), Titanium Tetrasteeryloxyside, Titanium Tetrakiss [Bis ⁇ 2,2- (Aryloxymethyl) Butokiside ⁇ ] etc.
  • Titanocene compounds for example, pentamethylcyclopentadienyl titanium trimethoxide, bis ( ⁇ 5-2,4-cyclopentadiene-1-yl) bis (2,6-difluorophenyl) titanium, bis ( ⁇ 5-2, 2).
  • Titanium oxide compound For example, titanium oxide bis (pentanionate), titanium oxide bis (tetramethylheptandionate), phthalocyanine titanium oxide and the like.
  • Titanium tetraacetylacetone compound For example, titanium tetraacetylacetone.
  • Titanate Coupling Agent For example, isopropyltridodecylbenzenesulfonyl titanate and the like.
  • the organic titanium compound at least one compound selected from the group consisting of the above-mentioned I) titanium chelate compound, II) tetraalkoxytitanium compound, and III) titanosen compound has better chemical resistance. It is preferable from the viewpoint of playing.
  • -Pyrrole-1-yl) phenyl) titanium is preferred.
  • the blending amount is preferably 0.05 to 10 parts by mass, more preferably 0.1 to 2 parts by mass with respect to 100 parts by mass of the precursor of the cyclized resin. ..
  • the blending amount is 0.05 parts by mass or more, good heat resistance and chemical resistance are exhibited in the obtained curing pattern, while when it is 10 parts by mass or less, the storage stability of the composition is excellent.
  • the composition of the present invention may contain an antioxidant.
  • an antioxidant By containing an antioxidant as an additive, it is possible to improve the elongation characteristics of the film after curing and the adhesion with a metal material.
  • the antioxidant include phenol compounds, phosphite ester compounds, thioether compounds and the like.
  • the phenol compound any phenol compound known as a phenolic antioxidant can be used.
  • Preferred phenolic compounds include hindered phenolic compounds.
  • a compound having a substituent at a site (ortho position) adjacent to the phenolic hydroxy group is preferable.
  • a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferable.
  • a compound having a phenol group and a phosphite ester group in the same molecule is also preferable.
  • a phosphorus-based antioxidant can also be preferably used.
  • a phosphorus-based antioxidant tris [2-[[2,4,8,10-tetrakis (1,1-dimethylethyl) dibenzo [d, f] [1,3,2] dioxaphosfepine-6 -Il] Oxy] Ethyl] amine, Tris [2-[(4,6,9,11-tetra-tert-butyldibenzo [d, f] [1,3,2] dioxaphosfepin-2-yl] ) Oxy] ethyl] amine, ethylbis phosphite (2,4-di-tert-butyl-6-methylphenyl) and the like.
  • antioxidants include, for example, Adekastab AO-20, Adekastab AO-30, Adekastab AO-40, Adekastab AO-50, Adekastab AO-50F, Adekastab AO-60, Adekastab AO-60G, Adekastab AO-80. , ADEKA STAB AO-330 (above, manufactured by ADEKA Corporation) and the like.
  • the antioxidant the compounds described in paragraphs 0023 to 0048 of Japanese Patent No. 6268967 can also be used.
  • the composition of the present invention may contain a latent antioxidant, if necessary.
  • the latent antioxidant is a compound in which the site that functions as an antioxidant is protected by a protecting group, and is heated at 100 to 250 ° C. or at 80 to 200 ° C. in the presence of an acid / base catalyst. As a result, a compound in which the protecting group is eliminated and functions as an antioxidant can be mentioned.
  • Examples of the latent antioxidant include compounds described in International Publication No. 2014/021023, International Publication No. 2017/030005, and JP-A-2017-008219.
  • Examples of commercially available products of latent antioxidants include ADEKA ARKULS GPA-5001 (manufactured by ADEKA Corporation).
  • preferred antioxidants include 2,2-thiobis (4-methyl-6-t-butylphenol), 2,6-di-t-butylphenol and compounds represented by the general formula (3).
  • R 5 represents a hydrogen atom or an alkyl group having 2 or more carbon atoms
  • R 6 represents an alkylene group having 2 or more carbon atoms
  • R 7 represents a 1- to tetravalent organic group containing at least one of an alkylene group having 2 or more carbon atoms, an O atom, and an N atom
  • k represents an integer of 1 to 4.
  • the compound represented by the general formula (3) suppresses oxidative deterioration of the aliphatic group and the phenolic hydroxyl group of the resin.
  • metal oxidation can be suppressed by the rust preventive action on the metal material.
  • R7 includes an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an alkylsilyl group, an alkoxysilyl group, an aryl group, an aryl ether group, a carboxyl group, a carbonyl group, an allyl group, a vinyl group, a heterocyclic group, and-. Examples thereof include O-, -NH-, -NHNH-, and combinations thereof, and may further have a substituent.
  • alkyl ether and -NH- from the viewpoint of solubility in a developing solution and metal adhesion, and -NH- is more preferable from the viewpoint of metal adhesion due to interaction with resin and metal complex formation. preferable.
  • Examples of the compound represented by the following general formula (3) include the following, but the compound is not limited to the following structure.
  • the amount of the antioxidant added is preferably 0.1 to 10 parts by mass, more preferably 0.5 to 5 parts by mass with respect to the resin. If the amount added is less than 0.1 parts by mass, it is difficult to obtain the effect of improving the elongation characteristics after reliability and the adhesion to the metal material, and if it is more than 10 parts by mass, it is due to the interaction with the photosensitizer. , There is a risk of lowering the sensitivity of the resin composition. Only one type of antioxidant may be used, or two or more types may be used. When two or more kinds are used, it is preferable that the total amount thereof is within the above range.
  • the water content of the curable resin composition of the present invention is preferably less than 5% by mass, more preferably less than 1% by mass, and even more preferably less than 0.6% by mass from the viewpoint of coating surface properties.
  • Examples of the method for maintaining the water content include adjusting the humidity under storage conditions and reducing the porosity of the storage container.
  • the metal content of the curable resin composition of the present invention is preferably less than 5 mass ppm (parts per million), more preferably less than 1 mass ppm, and even more preferably less than 0.5 mass ppm, from the viewpoint of insulating properties.
  • the metal include sodium, potassium, magnesium, calcium, iron, chromium, nickel and the like. When a plurality of metals are contained, the total of these metals is preferably in the above range.
  • a raw material having a low metal content is selected as a raw material constituting the curable resin composition of the present invention.
  • Methods such as filtering the raw materials constituting the curable resin composition of the present invention with a filter, lining the inside of the apparatus with polytetrafluoroethylene or the like, and performing distillation under conditions in which contamination is suppressed as much as possible can be mentioned. be able to.
  • the curable resin composition of the present invention preferably has a halogen atom content of less than 500 mass ppm, more preferably less than 300 mass ppm, and more preferably 200 mass ppm from the viewpoint of wiring corrosiveness. Less than ppm is more preferred. Among them, those existing in the state of halogen ions are preferably less than 5 mass ppm, more preferably less than 1 mass ppm, and even more preferably less than 0.5 mass ppm.
  • the halogen atom include a chlorine atom and a bromine atom. It is preferable that the total of chlorine atom and bromine atom, or chlorine ion and bromine ion is in the above range, respectively.
  • ion exchange treatment and the like are preferably mentioned.
  • a conventionally known storage container can be used as the storage container for the curable resin composition of the present invention.
  • a multi-layer bottle having the inner wall of the container composed of 6 types and 6 layers of resin and 6 types of resin are used. It is also preferable to use a layered bottle. Examples of such a container include the container described in Japanese Patent Application Laid-Open No. 2015-123351.
  • the curable resin composition of the present invention is preferably used for forming an interlayer insulating film for a rewiring layer. In addition, it can also be used for forming an insulating film of a semiconductor device, forming a stress buffer film, and the like.
  • the curable resin composition of the present invention can be prepared by mixing each of the above components.
  • the mixing method is not particularly limited, and a conventionally known method can be used.
  • the filter pore diameter is preferably 1 ⁇ m or less, more preferably 0.5 ⁇ m or less, and even more preferably 0.1 ⁇ m or less. On the other hand, from the viewpoint of productivity, 5 ⁇ m or less is preferable, 3 ⁇ m or less is more preferable, and 1 ⁇ m or less is further preferable.
  • the filter material is preferably polytetrafluoroethylene, polyethylene or nylon.
  • the filter may be one that has been pre-cleaned with an organic solvent. In the filter filtration step, a plurality of types of filters may be connected in series or in parallel.
  • filters having different pore diameters or materials may be used in combination. Moreover, you may filter various materials a plurality of times. When filtering a plurality of times, circulation filtration may be used. Moreover, you may pressurize and perform filtration. When pressurizing and filtering, the pressurizing pressure is preferably 0.05 MPa or more and 0.3 MPa or less. On the other hand, from the viewpoint of productivity, 0.01 MPa or more and 1.0 MPa or less is preferable, 0.03 MPa or more and 0.9 MPa or less is more preferable, and 0.05 MPa or more and 0.7 MPa or less is further preferable. In addition to filtration using a filter, impurities may be removed using an adsorbent.
  • Filter filtration and impurity removal treatment using an adsorbent may be combined.
  • a known adsorbent can be used. Examples thereof include inorganic adsorbents such as silica gel and zeolite, and organic adsorbents such as activated carbon.
  • the cured film of the present invention is a cured film obtained by curing the resin composition of the present invention.
  • the cured film is preferably a patterned cured film.
  • the film thickness of the cured film of the present invention can be, for example, 0.5 ⁇ m or more, and can be 1 ⁇ m or more. Further, the upper limit value can be 100 ⁇ m or less, and can be 30 ⁇ m or less.
  • the cured film of the present invention may be laminated in two or more layers, and further in three to seven layers to form a laminated body. It is preferable that the laminate of the present invention contains two or more cured films and includes a metal layer between any of the cured films. For example, a laminate containing at least a layer structure in which three layers of a first cured film, a metal layer, and a second cured film are laminated in this order is preferable.
  • the first cured film and the second cured film are both cured films of the present invention.
  • both the first cured film and the second cured film have the resin composition of the present invention.
  • a preferred embodiment is a film obtained by curing an object.
  • the resin composition of the present invention used for forming the first cured film and the resin composition of the present invention used for forming the second cured film may have the same composition. However, the compositions may have different compositions.
  • the metal layer in the laminate of the present invention is preferably used as metal wiring such as a rewiring layer.
  • Examples of applicable fields of the cured film of the present invention include an insulating film for a semiconductor device, an interlayer insulating film for a rewiring layer, a stress buffer film, and the like.
  • Other examples include forming a pattern by etching on a sealing film, a substrate material (base film or coverlay of a flexible printed circuit board, an interlayer insulating film), or an insulating film for mounting purposes as described above.
  • the cured film in the present invention can also be used for manufacturing plate surfaces such as offset plate surfaces or screen plate surfaces, for etching molded parts, and for manufacturing protective lacquers and dielectric layers in electronics, especially microelectronics.
  • the method for producing a cured film of the present invention is a film forming step of applying the resin composition of the present invention to a substrate to form a film (resin film). It is preferable to include it.
  • the method for producing a cured film of the present invention preferably includes the film forming step, an exposure step for exposing the film, and a developing step for developing the film. By the above exposure step and development step, a pattern of a cured film can be obtained. Further, the method for producing a cured film of the present invention more preferably includes the film forming step and, if necessary, the developing step, and also includes a heating step of heating the film at 50 to 450 ° C.
  • (b) Exposure step of exposing the film after the film forming step (c) The exposed film Development step for developing
  • Heating step for heating the developed film at 50 to 450 ° C. By heating in the heating step, the resin layer cured by exposure can be further cured. In this heating step, for example, the above-mentioned thermal base generator is decomposed to obtain sufficient curability.
  • the method for producing a laminate according to a preferred embodiment of the present invention includes the method for producing a cured film of the present invention.
  • the steps (a), the steps (a) to (c), or (a) are further performed.
  • )-(D) it is preferable to carry out each of the above steps a plurality of times, for example, 2 to 5 times (that is, 3 to 6 times in total) in order.
  • a metal layer on the portion provided with the cured film, between the cured films, or both.
  • the production method includes a film forming step (layer forming step) in which the resin composition is applied to a substrate to form a film (layered).
  • the type of the base material can be appropriately determined depending on the application, but semiconductor-made base materials such as silicon, silicon nitride, polysilicon, silicon oxide, and amorphous silicon, quartz, glass, optical film, ceramic material, and thin film, There are no particular restrictions on magnetic films, reflective films, metal substrates such as Ni, Cu, Cr, and Fe, paper, SOG (Spin On Glass), TFT (thin film transistor) array substrates, and electrode plates of plasma display panels (PDPs). Further, these base materials may be provided with a layer such as an adhesion layer or an oxide layer on the surface thereof. In the present invention, a semiconductor-made base material is particularly preferable, and a silicon base material, a Cu base material, and a mold base material are more preferable.
  • these substrates may be provided with a layer such as an adhesion layer or an oxide layer made of hexamethyldisilazane (HMDS) or the like on the surface.
  • a layer such as an adhesion layer or an oxide layer made of hexamethyldisilazane (HMDS) or the like on the surface.
  • HMDS hexamethyldisilazane
  • the base material for example, a plate-shaped base material (board) is used.
  • the shape of the base material is not particularly limited, and may be circular or rectangular, but is preferably rectangular.
  • the size of the base material is, for example, 100 to 450 mm in diameter, preferably 200 to 450 mm in a circular shape. If it is rectangular, for example, the length of the short side is 100 to 1000 mm, preferably 200 to 700 mm.
  • the resin layer or the metal layer serves as a base material.
  • Coating is preferable as a means for applying the resin composition to the base material.
  • the means to be applied include a dip coating method, an air knife coating method, a curtain coating method, a wire bar coating method, a gravure coating method, an extrusion coating method, a spray coating method, a spin coating method, and a slit coating method.
  • the inkjet method and the like are exemplified. From the viewpoint of the uniformity of the thickness of the resin composition layer, a spin coating method, a slit coating method, a spray coating method, and an inkjet method are more preferable.
  • a resin layer having a desired thickness can be obtained by adjusting an appropriate solid content concentration and coating conditions according to the method. Further, the coating method can be appropriately selected depending on the shape of the base material.
  • a spin coating method, a spray coating method, an inkjet method, etc. are preferable, and for a rectangular base material, a slit coating method or a spray coating method is preferable.
  • the method, the inkjet method and the like are preferable.
  • the spin coating method for example, it can be applied at a rotation speed of 500 to 2,000 rpm for about 10 seconds to 1 minute. Further, depending on the viscosity of the photosensitive resin composition and the film thickness to be set, it is preferable to apply the photosensitive resin composition at a rotation speed of 300 to 3,500 rpm for 10 to 180 seconds.
  • a plurality of rotation speeds can be combined and applied. Further, it is also possible to apply a method of transferring a coating film previously formed on a temporary support by the above-mentioned application method onto a substrate. Regarding the transfer method, the production method described in paragraphs 0023, 0036 to 0051 of JP-A-2006-023696 and paragraphs 096 to 0108 of JP-A-2006-047592 can be preferably used in the present invention. Further, a step of removing the excess film at the edge of the base material may be performed. Examples of such a process include edge bead rinse (EBR), air knife, back rinse and the like. Further, a pre-wetting step of applying various solvents to the base material before applying the resin composition to the base material to improve the wettability of the base material and then applying the resin composition may be adopted.
  • EBR edge bead rinse
  • the production method of the present invention may include a step of drying to remove the solvent after the film forming step (layer forming step).
  • the preferred drying temperature is 50 to 150 ° C., more preferably 70 ° C. to 130 ° C., still more preferably 90 ° C. to 110 ° C.
  • the drying time is exemplified by 30 seconds to 20 minutes, preferably 1 minute to 10 minutes, and more preferably 3 minutes to 7 minutes.
  • the production method of the present invention may include an exposure step of exposing the film (resin composition layer).
  • the exposure amount is not particularly specified as long as the resin composition can be cured, but for example, it is preferable to irradiate 100 to 10,000 mJ / cm 2 in terms of exposure energy at a wavelength of 365 nm, and 200 to 8,000 mJ / cm 2 It is more preferable to irradiate.
  • the exposure wavelength can be appropriately determined in the range of 190 to 1,000 nm, preferably 240 to 550 nm. Further, the exposure light preferably contains light having a wavelength of 365 nm or 405 nm, and more preferably contains light having a wavelength of 405 nm.
  • the exposure wavelengths are (1) semiconductor laser (wavelength 830 nm, 532 nm, 488 nm, 405 nm etc.), (2) metal halide lamp, (3) high-pressure mercury lamp, g-ray (wavelength 436 nm), h.
  • the resin composition of the present invention is particularly preferably exposed to a high-pressure mercury lamp, and above all, to be exposed to i-rays.
  • a broad (three wavelengths of g, h, and i rays) light source of a high-pressure mercury lamp and a semiconductor laser of 405 nm are also suitable.
  • the exposure method is not particularly limited as long as it exposes at least a part of the film (photosensitive film) made of the curable resin composition, but an exposure using a photomask or a laser direct imaging method is used. Exposure and the like can be mentioned.
  • an embodiment in which the exposure in the exposure step is an exposure by a laser direct imaging method is also one of the preferred embodiments.
  • the production method of the present invention may include a developing step of developing (developing the above-mentioned film) the exposed film (resin composition layer). By developing, the unexposed portion (non-exposed portion) is removed.
  • the developing method is not particularly limited as long as a desired pattern can be formed, and examples thereof include ejection of a developing solution from a nozzle, spray spraying, immersion of a developing solution in a base material, and the like, and ejection from a nozzle is preferably used.
  • the developing steps include a step in which the developer is continuously supplied to the base material, a step in which the developer is kept in a substantially stationary state on the base material, a step in which the developer is vibrated by ultrasonic waves or the like, and a combination thereof. Processes can be adopted.
  • Development is performed using a developing solution.
  • the developer can be used without particular limitation as long as the unexposed portion (non-exposed portion) is removed.
  • As the developing solution a developing solution containing an organic solvent or an alkaline aqueous solution can be used.
  • the developer preferably contains an organic solvent having a ClogP value of -1 to 5, and more preferably contains an organic solvent having a ClogP value of 0 to 3.
  • the ClogP value can be obtained as a calculated value by inputting a structural formula in ChemBioDraw.
  • the organic solvent may be, as esters, for example, ethyl acetate, n-butyl acetate, amyl formate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate.
  • the developer is a developer containing an organic solvent
  • cyclopentanone and ⁇ -butyrolactone are particularly preferable, and cyclopentanone is more preferable in the present invention.
  • the developing solution contains an organic solvent, one kind or a mixture of two or more kinds of organic solvents can be used.
  • the developer is a developer containing an organic solvent
  • 50% by mass or more of the developer is preferably an organic solvent
  • 70% by mass or more is more preferably an organic solvent
  • 90% by mass or more is organic. It is more preferably a solvent.
  • the developing solution may be 100% by mass of an organic solvent.
  • the developer may further contain other components.
  • other components include known surfactants and known defoamers.
  • the developing solution is an alkaline aqueous solution
  • examples of the basic compound that the alkaline aqueous solution can contain include TMAH (tetramethylammonium hydroxide), KOH (potassium hydroxide), sodium carbonate and the like, and TMAH is preferable. ..
  • TMAH tetramethylammonium hydroxide
  • KOH potassium hydroxide
  • sodium carbonate sodium carbonate
  • TMAH is preferable.
  • the content of the basic compound in the developing solution is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and 0.3 to 3% by mass in the total mass of the developing solution. Is more preferable.
  • the method of supplying the developer is not particularly limited as long as a desired pattern can be formed, and the method of immersing the base material in the developer, the method of supplying the developer on the base material using a nozzle, paddle development, or continuous development.
  • the type of nozzle is not particularly limited, and examples thereof include a straight nozzle, a shower nozzle, and a spray nozzle. From the viewpoint of the permeability of the developing solution, the removability of the non-image area, and the manufacturing efficiency, the method of supplying the developing solution with a straight nozzle or the method of continuously supplying the developing solution with a spray nozzle is preferable, and the developing solution to the image area is supplied.
  • the method of supplying with a spray nozzle is more preferable. Further, after the developing solution is continuously supplied by the straight nozzle, the base material is spun to remove the developing solution from the base material, and after spin drying, the developing solution is continuously supplied by the straight nozzle again, and then the base material is spun to use the developing solution as the base material. A step of removing from the top may be adopted, and this step may be repeated a plurality of times. Further, as a method of supplying the developer in the developing process, a step in which the developer is continuously supplied to the base material, a step in which the developer is kept in a substantially stationary state on the base material, and a step in which the developer is superposed on the base material. A process of vibrating with a sound wave or the like and a process of combining them can be adopted.
  • the development time is preferably 5 seconds to 10 minutes, more preferably 10 seconds to 5 minutes.
  • the temperature of the developing solution at the time of development is not particularly specified, but it can be usually 10 to 45 ° C, preferably 20 to 40 ° C.
  • rinsing After the treatment with the developing solution, further rinsing may be performed. Further, a method such as supplying a rinse liquid before the developer in contact with the pattern is completely dried may be adopted.
  • the rinsing is preferably performed with a solvent different from that of the developing solution. For example, it can be rinsed with the solvent contained in the resin composition.
  • the rinse solution include PGMEA (propylene glycol monoethyl ether acetate), IPA (isopropanol), and the like, preferably PGMEA.
  • water is preferable as the rinsing solution for development with a developing solution containing an alkaline aqueous solution.
  • the rinsing time is preferably 10 seconds to 10 minutes, more preferably 20 seconds to 5 minutes, still more preferably 5 seconds to 1 minute.
  • the temperature of the rinsing liquid at the time of rinsing is not particularly determined, but is preferably 10 to 45 ° C, more preferably 18 ° C to 30 ° C.
  • the esters include, for example, ethyl acetate, n-butyl acetate, amyl formate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyl, butyl butyrate.
  • alkyl alkyloxyacetate eg, methyl alkyloxyacetate, ethyl alkyloxyacetate, butyl alkyloxyacetate (eg, methyl methoxyacetate, methoxyacetic acid)
  • toluene, xylene, anisole, limonene and the like dimethyl sulfoxide as sulfoxides, and methanol, ethanol, propanol, isopropanol, butanol, pentanol, octanol, diethylene glycol, propylene glycol, methylisobutylcarbinol, triethylene as alcohols.
  • glycols and the like and amides include N-methylpyrrolidone, N-ethylpyrrolidone, dimethylformamide and the like.
  • the rinsing liquid contains an organic solvent
  • one type or a mixture of two or more types of organic solvent can be used.
  • cyclopentanone, ⁇ -butyrolactone, dimethyl sulfoxide, N-methylpyrrolidone, cyclohexanone, PGMEA and PGME are particularly preferable, cyclopentanone, ⁇ -butyrolactone, dimethyl sulfoxide, PGMEA and PGME are more preferable, and cyclohexanone and PGMEA are more preferable. More preferred.
  • the rinsing liquid contains an organic solvent
  • 50% by mass or more of the rinsing liquid is preferably an organic solvent, 70% by mass or more is more preferably an organic solvent, and 90% by mass or more is an organic solvent. Is more preferable.
  • the rinse liquid may be 100% by mass of an organic solvent.
  • the rinse solution may further contain other components.
  • other components include known surfactants and known defoamers.
  • the method of supplying the rinse liquid is not particularly limited as long as a desired pattern can be formed, and the method of immersing the base material in the rinse liquid, the supply of the rinse liquid with a paddle on the base material, and the supply of the rinse liquid to the base material by a shower.
  • the method of supplying the rinse liquid with a shower nozzle, a straight nozzle, a spray nozzle, etc. there is a method of supplying the rinse liquid with a spray nozzle is preferable. From the viewpoint of the permeability of the rinse liquid into the image portion, the method of supplying the rinse liquid with a spray nozzle is more preferable.
  • the type of nozzle is not particularly limited, and examples thereof include a straight nozzle, a shower nozzle, and a spray nozzle.
  • the rinsing step is preferably a step of supplying the rinsing liquid to the exposed film by a straight nozzle or continuously, and more preferably a step of supplying the rinsing liquid by a spray nozzle.
  • a method of supplying the rinse liquid in the rinsing step a step of continuously supplying the rinse liquid to the base material, a step of keeping the rinse liquid in a substantially stationary state on the base material, and a step of superimposing the rinse liquid on the base material.
  • a process of vibrating with a sound conditioner or the like and a process of combining them can be adopted.
  • the production method of the present invention preferably includes a step (heating step) of heating the developed film at 50 to 450 ° C.
  • the heating step is preferably included after the film forming step (layer forming step), the drying step, and the developing step.
  • the above-mentioned thermal base generator decomposes to generate a base, and the cyclization reaction of the precursor, which is a specific resin, proceeds.
  • the resin composition of the present invention may contain a radically polymerizable compound other than the precursor which is a specific resin, but curing of a radically polymerizable compound other than the precursor which is an unreacted specific resin is also in this step. Can be advanced with.
  • the heating temperature (maximum heating temperature) of the layer in the heating step is preferably 50 ° C. or higher, more preferably 80 ° C. or higher, further preferably 140 ° C. or higher, and 150 ° C. or higher. Is even more preferable, 160 ° C. or higher is even more preferable, and 170 ° C. or higher is even more preferable.
  • the upper limit is preferably 500 ° C. or lower, more preferably 450 ° C. or lower, further preferably 350 ° C. or lower, further preferably 250 ° C. or lower, and preferably 220 ° C. or lower. Even more preferable.
  • the heating is preferably performed at a heating rate of 1 to 12 ° C./min from the temperature at the start of heating to the maximum heating temperature, more preferably 2 to 10 ° C./min, and even more preferably 3 to 10 ° C./min.
  • a heating rate of 1 to 12 ° C./min from the temperature at the start of heating to the maximum heating temperature, more preferably 2 to 10 ° C./min, and even more preferably 3 to 10 ° C./min.
  • the temperature at the start of heating it is preferable to carry out from the temperature at the start of heating to the maximum heating temperature at a heating rate of 1 to 8 ° C./sec, more preferably 2 to 7 ° C./sec, and 3 to 6 ° C. °C / sec is more preferable.
  • the temperature at the start of heating is preferably 20 ° C. to 150 ° C., more preferably 20 ° C. to 130 ° C., and even more preferably 25 ° C. to 120 ° C.
  • the temperature at the start of heating refers to the temperature at which the process of heating to the maximum heating temperature is started.
  • the temperature of the film (layer) after drying is, for example, 30 to 200 ° C., which is higher than the boiling point of the solvent contained in the resin composition. It is preferable to gradually raise the temperature from a low temperature.
  • the heating time (heating time at the maximum heating temperature) is preferably 10 to 360 minutes, more preferably 20 to 300 minutes, and even more preferably 30 to 240 minutes.
  • the heating temperature is preferably 180 ° C. to 320 ° C., more preferably 180 ° C. to 260 ° C., from the viewpoint of adhesion between layers of the cured film. The reason is not clear, but it is considered that the ethynyl groups of the specific resin between the layers are undergoing a cross-linking reaction at this temperature.
  • Heating may be performed in stages. As an example, the temperature is raised from 25 ° C. to 180 ° C. at 3 ° C./min and held at 180 ° C. for 60 minutes, the temperature is raised from 180 ° C. to 200 ° C. at 2 ° C./min, and held at 200 ° C. for 120 minutes. , Etc. may be performed.
  • the heating temperature as the pretreatment step is preferably 100 to 200 ° C., more preferably 110 to 190 ° C., and even more preferably 120 to 185 ° C. In this pretreatment step, it is also preferable to carry out the treatment while irradiating with ultraviolet rays as described in US Pat. No. 9,159,547.
  • the pretreatment step is preferably performed in a short time of about 10 seconds to 2 hours, more preferably 15 seconds to 30 minutes.
  • the pretreatment may be performed in two or more steps.
  • the pretreatment step 1 may be performed in the range of 100 to 150 ° C.
  • the pretreatment step 2 may be performed in the range of 150 to 200 ° C.
  • cooling may be performed after heating, and the cooling rate in this case is preferably 1 to 5 ° C./min.
  • the heating step is preferably performed in an atmosphere having a low oxygen concentration by flowing an inert gas such as nitrogen, helium, or argon from the viewpoint of preventing decomposition of the specific resin.
  • the oxygen concentration is preferably 50 ppm (volume ratio) or less, and more preferably 20 ppm (volume ratio) or less.
  • the heating means is not particularly limited, and examples thereof include a hot plate, an infrared furnace, an electric heating oven, and a hot air oven.
  • the production method of the present invention preferably includes a metal layer forming step of forming a metal layer on the surface of the developed film (resin composition layer).
  • metal layer existing metal types can be used without particular limitation, and copper, aluminum, nickel, vanadium, titanium, chromium, cobalt, gold and tungsten are exemplified, and copper, aluminum, and these metals are exemplified.
  • the alloy containing the above is more preferable, and copper is further preferable.
  • the method for forming the metal layer is not particularly limited, and an existing method can be applied.
  • the methods described in JP-A-2007-157879, JP-A-2001-521288, JP-A-2004-214501, and JP-A-2004-101850 can be used.
  • photolithography, lift-off, electrolytic plating, electroless plating, etching, printing, and a method combining these can be considered. More specifically, a patterning method combining sputtering, photolithography and etching, and a patterning method combining photolithography and electrolytic plating can be mentioned.
  • the thickness of the metal layer is preferably 0.01 to 100 ⁇ m, more preferably 0.1 to 50 ⁇ m, and even more preferably 1 to 10 ⁇ m at the thickest portion.
  • the production method of the present invention preferably further includes a laminating step.
  • the laminating step means that (a) a film forming step (layer forming step), (b) an exposure step, (c) a developing step, and (d) a heating step are performed again on the surface of the cured film (resin layer) or the metal layer. , A series of steps including performing in this order. However, the mode may be such that only the film forming step (a) is repeated. Further, (d) the heating step may be performed collectively at the end or the middle of the lamination. That is, the steps (a) to (c) may be repeated a predetermined number of times, and then the heating of (d) may be performed to cure the laminated resin composition layers all at once.
  • the (c) developing step may be followed by the (e) metal layer forming step, and even if the heating is performed each time (d), the (d) is collectively performed after laminating a predetermined number of times. Heating may be performed. Needless to say, the laminating step may further include the above-mentioned drying step, heating step, and the like as appropriate.
  • the surface activation treatment step may be further performed after the heating step, the exposure step, or the metal layer forming step.
  • An example of the surface activation treatment is plasma treatment.
  • the laminating step is preferably performed 2 to 20 times, preferably 2 to 5 times, and more preferably 3 to 5 times. Further, each layer in the laminating step may be a layer having the same composition, shape, film thickness, etc., or may be a different layer.
  • a cured film (resin layer) of the resin composition so as to cover the metal layer after the metal layer is provided.
  • Examples thereof include an embodiment in which (b) an exposure step, (c) a development step, and (e) a metal layer forming step are repeated in this order, and (d) a heating step is collectively provided at the end or in the middle.
  • the method for producing a laminate of the present invention may include a surface activation treatment step of surface activating at least a part of the metal layer and the photosensitive resin composition layer.
  • the surface activating treatment step is usually performed after the metal layer forming step, but it is also possible to perform the surface activating treatment step on the photosensitive resin composition layer after the exposure development step and then perform the metal layer forming step. good.
  • the surface activation treatment may be performed on at least a part of the metal layer, on at least a part of the photosensitive resin composition layer after exposure, or on the metal layer and the photosensitive resin after exposure. For both of the composition layers, each may be at least partially.
  • the surface activation treatment is preferably performed on at least a part of the metal layer, and it is preferable to perform the surface activation treatment on a part or all of the region of the metal layer in which the photosensitive resin composition layer is formed on the surface. ..
  • the surface activation treatment is performed on a part or all of the photosensitive resin composition layer (resin layer) after exposure.
  • the surface activation treatment includes plasma treatment of various raw material gases (oxygen, hydrogen, argon, nitrogen, nitrogen / hydrogen mixed gas, argon / oxygen mixed gas, etc.), corona discharge treatment, CF 4 / O 2 , NF 3 / O 2 , SF 6 , NF 3 , NF 3 / O 2 , surface treatment by ultraviolet (UV) ozone method, immersion in hydrochloric acid aqueous solution to remove oxide film, then amino group and thiol group It is selected from a dipping treatment in an organic surface treatment agent containing at least one compound and a mechanical roughening treatment using a brush, and a plasma treatment is preferable, and an oxygen plasma treatment using oxygen as a raw material gas is particularly preferable.
  • the energy is preferably 500 ⁇ 200,000J / m 2, more preferably 1000 ⁇ 100,000J / m 2, and most preferably 10,000 ⁇ 50,000J / m 2.
  • the present invention also discloses a semiconductor device containing the cured film or laminate of the present invention.
  • the semiconductor device in which the resin composition of the present invention is used to form the interlayer insulating film for the rewiring layer the description in paragraphs 0213 to 0218 and FIG. 1 of JP-A-2016-0273557 can be referred to. These contents are incorporated in the present specification.
  • the precipitate formed in the reaction mixture was removed by filtration to obtain a reaction solution.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure in the polyimide precursor can be increased, and by shortening the total molar content, the total molar content can be reduced. ..
  • a resin having a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor of 0.083 mmol / g was obtained.
  • the produced crude polymer was filtered off and dissolved in tetrahydrofuran 403.49 g to obtain a crude polymer solution.
  • the obtained crude polymer solution was added dropwise to 8470.26 g of water to precipitate the polymer, and the obtained precipitate was filtered off and then vacuum dried to obtain a powdered polymer (polyimide precursor) A-1. rice field.
  • the molecular weight of the polymer A-1 was measured by gel permeation chromatography (standard polystyrene conversion), the weight average molecular weight (Mw) was 20,000.
  • the molar content of the benzoxazole structure in the polybenzoxazole precursor can be increased, and by shortening it, the molar content of the benzoxazole structure in the polybenzoxazole precursor can be increased.
  • the molar content of the benzoxazole structure can be set to 0.373 mmol / g for 15 minutes.
  • the precipitated polybenzoxazole precursor resin was filtered off and washed with 1.5 liters of water. The obtained resin was dried under reduced pressure at 40 ° C. for 1 day to obtain A-4.
  • the precipitate formed in the reaction mixture was removed by filtration to obtain a reaction solution.
  • the total molar content of the cyclic imide structure and the cyclic isoimide structure in the polyamide-imide precursor can be increased, and by shortening the total molar content, the total molar content can be reduced. can.
  • the molar content of the benzoxazole structure can be 0.104 mmol / g for 15 minutes.
  • the obtained reaction solution was added to 716.21 g of ethyl alcohol to form a precipitate composed of a crude polymer.
  • the produced crude polymer was filtered off and dissolved in tetrahydrofuran 403.49 g to obtain a crude polymer solution.
  • the obtained crude polymer solution was added dropwise to 8470.26 g of water to precipitate the polymer, the obtained precipitate was filtered off, and then vacuum dried to obtain a powdered polymer (polyamideimide precursor) A-5. Obtained.
  • Examples and Comparative Examples> the components listed in the table below were mixed to obtain each curable resin composition. Further, in each comparative example, the components listed in the following table were mixed to obtain each comparative composition. Specifically, the content of each component shown in Tables 1 to 5 is the amount (parts by mass) shown in parentheses in each column of Tables 1 to 5. The obtained curable resin composition and comparative composition were pressure-filtered using a filter made of polytetrafluoroethylene having a pore width of 0.8 ⁇ m. Further, in Tables 1 to 5, the description of "-" indicates that the composition does not contain the corresponding component.
  • the cyclic imide structure amount was specified from the ratio of the peak area around 7.15 ppm to the peak area of the aromatic ring.
  • the cyclic isoimide structure in the polyimide precursor or the polyamide-imide precursor The amount of benzoxazole structure in the polybenzoxazole precursor was identified.
  • the prepared curable resin composition or comparative composition was applied onto a silicon wafer by a spin coating method.
  • the silicon wafer was dried on a hot plate at 100 ° C. for 5 minutes to form a curable resin composition layer having a uniform thickness of 20 ⁇ m on the silicon wafer.
  • the curable resin composition layer on the silicon wafer was exposed using a stepper. The exposure was performed using light having the wavelength described in "Exposure wavelength nm" in the table, and using a photomask of a fuse box from 5 ⁇ m to 25 ⁇ m in 1 ⁇ m increments. The exposure amount was the exposure amount that minimizes the minimum line width described later.
  • the exposure was performed using a direct exposure apparatus (Adtech DE-6UH III).
  • the exposure was performed by laser direct imaging exposure at a wavelength of 405 nm so that the exposed portion became a line portion in a line and space pattern in 1 ⁇ m increments from 5 ⁇ m to 25 ⁇ m.
  • the exposure amount was the exposure amount that minimizes the minimum line width described later.
  • the exposed curable resin composition layer was developed with cyclopentanone for 60 seconds and then rinsed with PGMEA (propylene glycol monomethyl ether acetate).
  • the line width of the line pattern having the smallest line width was defined as the "minimum line width" and evaluated according to the following evaluation criteria. It can be said that the smaller the line width is, the better the resolution is. For example, it means that the metal wiring width formed in the subsequent plating step can be miniaturized, which is a preferable result.
  • the measurement limit is 5 ⁇ m.
  • the evaluation results are described in the "Resolution" column in the table. -Evaluation criteria- A: The minimum line width was 5 ⁇ m or more and less than 8 ⁇ m. B: The minimum line width was 8 ⁇ m or more and less than 10 ⁇ m. C: The minimum line width was 10 ⁇ m or more and less than 12 ⁇ m. D: The minimum line width was 12 ⁇ m or more.
  • the exposure amount was varied in 50 mJ / cm 2 increments in the range of 50 ⁇ 500mJ / cm 2.
  • laser direct imaging exposure was performed using a direct exposure apparatus (Adtech DE-6UH III).
  • the exposure wavelength was 405 nm, and exposure was performed so that an unexposed portion having a diameter of 15.0 ⁇ m was formed.
  • the exposure amount was varied in 50 mJ / cm 2 increments in the range of 50 ⁇ 500mJ / cm 2.
  • the sensitivity was evaluated according to the following evaluation criteria from the minimum exposure amount at which a hole pattern having a bottom diameter of 15.0 ⁇ m was formed.
  • the minimum exposure amount was less than 100 mJ / cm 2.
  • B the minimum exposure amount is less than 100 mJ / cm 2 or more 150 mJ / cm 2.
  • C The minimum exposure amount was 150 mJ / cm 2 or more.
  • the polyimide precursor contained in the comparative compositions according to Comparative Examples 1 to 4 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor of less than 0.08 mmol / g.
  • the polyimide precursor contained in the comparative composition according to Comparative Example 5 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor exceeding 1.68 mmol / g.
  • the polybenzoxazole precursor contained in the comparative composition according to Comparative Example 6 has a molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor of less than 0.22 mmol / g.
  • the polybenzoxazole precursor contained in the comparative composition according to Comparative Example 7 has a molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor exceeding 3.97 mmol / g.
  • the polyamide-imide precursor contained in the comparative composition according to Comparative Example 8 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor exceeding 1.186 mmol / g.
  • the polyamide-imide precursor contained in the comparative composition according to Comparative Example 9 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamide-imide precursor of less than 0.062 mmol / g. It can be seen that when these comparative compositions are used, the resolution is inferior.
  • Example 101 The curable resin composition used in Example 1 was applied in layers to the surface of the copper thin layer of the resin base material having the copper thin layer formed on the surface by a spin coating method, and dried at 100 ° C. for 4 minutes. After forming a photosensitive film having a film thickness of 20 ⁇ m, exposure was performed using a stepper (NSR1505 i6, manufactured by Nikon Corporation). Exposure was performed through a mask (a binary mask with a pattern of 1: 1 line and space and a line width of 10 ⁇ m) at a wavelength of 365 nm. After the exposure, it was heated at 100 ° C. for 4 minutes.
  • NSR1505 i6 a binary mask with a pattern of 1: 1 line and space and a line width of 10 ⁇ m
  • the temperature was raised at a heating rate of 10 ° C./min under a nitrogen atmosphere, and after reaching 230 ° C., the temperature was maintained at 230 ° C. for 120 minutes to form an interlayer insulating film for the rewiring layer.
  • the interlayer insulating film for the rewiring layer was excellent in insulating properties. Moreover, when a semiconductor device was manufactured using these interlayer insulating films for the rewiring layer, it was confirmed that the semiconductor device operated without any problem.

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Abstract

This curable resin composition contains an organometallic complex and at least one type of resin selected from the group consisting of a polyimide precursor containing a cyclic imide structure and/or a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and a polyamide-imide precursor containing a cyclic imide structure and/or a cyclic isoimide structure, wherein the molar content of the cyclic imide structures, the cyclic isoimide structures or the benzoxazole structures is a specific amount; this cured film is obtained by curing the curable resin composition; the laminate includes the cured film; the production method produces the cured film; and the semiconductor device contains the cured film or the laminate.

Description

硬化性樹脂組成物、硬化膜、積層体、硬化膜の製造方法、及び、半導体デバイスCurable resin composition, cured film, laminate, method for manufacturing cured film, and semiconductor device
 本発明は、硬化性樹脂組成物、硬化膜、積層体、硬化膜の製造方法、及び、半導体デバイスに関する。 The present invention relates to a curable resin composition, a cured film, a laminate, a method for producing a cured film, and a semiconductor device.
 ポリイミド、ポリベンゾオキサゾール、ポリアミドイミド等の樹脂は、耐熱性及び絶縁性等に優れるため、様々な用途に適用されている。上記用途としては特に限定されないが、実装用の半導体デバイスを例に挙げると、絶縁膜や封止材の材料、又は、保護膜としての利用が挙げられる。また、フレキシブル基板のベースフィルムやカバーレイなどとしても用いられている。 Resins such as polyimide, polybenzoxazole, and polyamide-imide have excellent heat resistance and insulating properties, and are therefore applied to various applications. The above application is not particularly limited, and examples of a semiconductor device for mounting include use as a material for an insulating film and a sealing material, or as a protective film. It is also used as a base film and coverlay for flexible substrates.
 例えば上述した用途において、ポリイミド、ポリベンゾオキサゾール、ポリアミドイミド等の樹脂は、ポリイミド前駆体、ポリベンゾオキサゾール前駆体、及び、ポリアミドイミド前駆体よりなる群から選ばれた少なくとも1種の樹脂を含む硬化性樹脂組成物の形態で用いられる。
 このような硬化性樹脂組成物を、例えば塗布等により基材に適用して感光膜を形成し、その後、必要に応じて露光、現像、加熱等を行うことにより、硬化物を基材上に形成することができる。
 上記ポリイミド前駆体、ポリベンゾオキサゾール前駆体、及び、ポリアミドイミド前駆体は、例えば加熱により環化され、硬化物中でそれぞれポリイミド、ポリベンゾオキサゾール、ポリアミドイミドとなる。
 硬化性樹脂組成物は、公知の塗布方法等により適用可能であるため、例えば、適用される硬化性樹脂組成物の適用時の形状、大きさ、適用位置等の設計の自由度が高いなど、製造上の適応性に優れるといえる。ポリイミド、ポリベンゾオキサゾール、ポリアミドイミド等が有する高い性能に加え、このような製造上の適応性に優れる観点から、上述の硬化性樹脂組成物の産業上の応用展開がますます期待されている。
For example, in the above-mentioned applications, resins such as polyimide, polybenzoxazole, and polyamide-imide are cured containing at least one resin selected from the group consisting of polyimide precursors, polybenzoxazole precursors, and polyamide-imide precursors. Used in the form of a sex resin composition.
Such a curable resin composition is applied to a base material by, for example, coating to form a photosensitive film, and then exposed, developed, heated or the like as necessary to apply the cured product onto the base material. Can be formed.
The polyimide precursor, the polybenzoxazole precursor, and the polyamide-imide precursor are cyclized by, for example, heating, and become polyimide, polybenzoxazole, and polyamide-imide in the cured product, respectively.
Since the curable resin composition can be applied by a known coating method or the like, for example, the degree of freedom in designing the shape, size, application position, etc. of the applied curable resin composition at the time of application is high. It can be said that it has excellent manufacturing adaptability. In addition to the high performance of polyimide, polybenzoxazole, polyamide-imide, etc., from the viewpoint of excellent adaptability in manufacturing, the industrial application development of the above-mentioned curable resin composition is expected more and more.
 例えば、特許文献1には、特定構造のポリイミド前駆体:100質量部、光重合開始剤:1~20質量部、並びに、ヒドロキシル基、エーテル基及びエステル基からなる群より選ばれる官能基を1つ以上有する炭素数2~30のモノカルボン酸化合物:0.01~10質量部、を含有する、ネガ型感光性樹脂組成物が記載されている。 For example, Patent Document 1 describes a polyimide precursor having a specific structure: 100 parts by mass, a photopolymerization initiator: 1 to 20 parts by mass, and a functional group selected from the group consisting of a hydroxyl group, an ether group and an ester group. A negative photosensitive resin composition containing one or more monocarboxylic acid compounds having 2 to 30 carbon atoms: 0.01 to 10 parts by mass is described.
特開2011-191749号公報Japanese Unexamined Patent Publication No. 2011-191749
 硬化性樹脂組成物からなるパターンの形成において、解像性の向上が求められている。 Improvement of resolution is required in the formation of a pattern made of a curable resin composition.
 本発明は、パターン形成時の解像性に優れる硬化性樹脂組成物、上記硬化性樹脂組成物を硬化してなる硬化膜、上記硬化膜を含む積層体、上記硬化膜の製造方法、及び、上記硬化膜又は上記積層体を含む半導体デバイスを提供することを目的とする。 The present invention relates to a curable resin composition having excellent resolution at the time of pattern formation, a cured film obtained by curing the curable resin composition, a laminate containing the cured film, a method for producing the cured film, and a method for producing the cured film. An object of the present invention is to provide a semiconductor device including the cured film or the laminate.
 本発明の代表的な実施態様の例を以下に示す。
<1> 環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリイミド前駆体、ベンゾオキサゾール構造を含むポリベンゾオキサゾール前駆体、及び、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリアミドイミド前駆体よりなる群から選ばれた少なくとも1種の樹脂、並びに、
 有機金属錯体を含み、
 1gの上記ポリイミド前駆体に含まれる上記環状イミド構造及び上記環状イソイミド構造の合計含有モル量が、0.08~1.68mmol/gであり、
 1gの上記ポリベンゾオキサゾール前駆体に含まれる上記ベンゾオキサゾール構造の含有モル量が、0.22~3.97mmol/gであり、
 1gの上記ポリアミドイミド前駆体に含まれる上記環状イミド構造及び上記環状イソイミド構造の合計含有モル量が、0.062~1.186mmol/gである、
 硬化性樹脂組成物。
<2> 光重合開始剤を更に含む、<1>に記載の硬化性樹脂組成物。
<3> 上記光重合開始剤がオキシム化合物である、<1>又は<2>に記載の硬化性樹脂組成物。
<4> 架橋剤を更に含む、<1>~<3>のいずれか1つに記載の硬化性樹脂組成物。
<5> 上記有機金属錯体が、メタロセン化合物である、<1>~<4>のいずれか1つに記載の硬化性樹脂組成物。
<6> 上記有機金属錯体に含まれる金属が、チタン、ジルコニウム及びハフニウムよりなる群から選ばれた少なくとも1種の金属である、<1>~<5>のいずれか1つに記載の硬化性樹脂組成物。
<7> 上記有機金属錯体が、光ラジカル重合開始能を有する、<1>~<6>のいずれか1つに記載の硬化性樹脂組成物。
<8> ネガ型現像に供される感光膜の形成に用いられる、<1>~<7>のいずれか1つに記載の硬化性樹脂組成物。
<9> 再配線層用層間絶縁膜の形成に用いられる、<1>~<8>のいずれか1つに記載の硬化性樹脂組成物。
<10> <1>~<9>のいずれか1つに記載の硬化性樹脂組成物を硬化してなる硬化膜。
<11> <10>に記載の硬化膜を2層以上含み、上記硬化膜同士のいずれかの間に金属層を含む積層体。
<12> <1>~<9>のいずれか1つに記載の硬化性樹脂組成物を基板に適用して膜を形成する膜形成工程を含む、硬化膜の製造方法。
<13> 上記膜を露光する露光工程及び上記膜を現像する現像工程を含む、<12>に記載の硬化膜の製造方法。
<14> 上記露光に用いられる露光光が波長405nmの光を含む、<13>に記載の硬化膜の製造方法。
<15> 上記露光がレーザーダイレクトイメージング法による露光である、<13>又は<14>に記載の硬化膜の製造方法。
<16> 上記膜を50~450℃で加熱する加熱工程を含む、<12>~<15>のいずれか1つに記載の硬化膜の製造方法。
<17> <10>に記載の硬化膜又は<11>に記載の積層体を含む、半導体デバイス。
Examples of typical embodiments of the present invention are shown below.
<1> Consists of a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and a polyamide-imide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure. At least one resin selected from the group, as well as
Contains organometallic complexes
The total molar amount of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor is 0.08 to 1.68 mmol / g.
The molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor is 0.22 to 3.97 mmol / g.
The total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamide-imide precursor is 0.062 to 1.186 mmol / g.
Curable resin composition.
<2> The curable resin composition according to <1>, further comprising a photopolymerization initiator.
<3> The curable resin composition according to <1> or <2>, wherein the photopolymerization initiator is an oxime compound.
<4> The curable resin composition according to any one of <1> to <3>, further comprising a cross-linking agent.
<5> The curable resin composition according to any one of <1> to <4>, wherein the organometallic complex is a metallocene compound.
<6> The curability according to any one of <1> to <5>, wherein the metal contained in the organometallic complex is at least one metal selected from the group consisting of titanium, zirconium and hafnium. Resin composition.
<7> The curable resin composition according to any one of <1> to <6>, wherein the organometallic complex has a photoradical polymerization initiation ability.
<8> The curable resin composition according to any one of <1> to <7>, which is used for forming a photosensitive film to be used for negative development.
<9> The curable resin composition according to any one of <1> to <8>, which is used for forming an interlayer insulating film for a rewiring layer.
<10> A cured film obtained by curing the curable resin composition according to any one of <1> to <9>.
<11> A laminate containing two or more layers of the cured film according to <10> and containing a metal layer between any of the cured films.
<12> A method for producing a cured film, which comprises a film forming step of applying the curable resin composition according to any one of <1> to <9> to a substrate to form a film.
<13> The method for producing a cured film according to <12>, which comprises an exposure step of exposing the film and a developing step of developing the film.
<14> The method for producing a cured film according to <13>, wherein the exposure light used for the above exposure includes light having a wavelength of 405 nm.
<15> The method for producing a cured film according to <13> or <14>, wherein the exposure is an exposure by a laser direct imaging method.
<16> The method for producing a cured film according to any one of <12> to <15>, which comprises a heating step of heating the film at 50 to 450 ° C.
<17> A semiconductor device comprising the cured film according to <10> or the laminate according to <11>.
 本発明によれば、パターン形成時の解像性に優れる硬化性樹脂組成物、上記硬化性樹脂組成物を硬化してなる硬化膜、上記硬化膜を含む積層体、上記硬化膜の製造方法、及び、上記硬化膜又は上記積層体を含む半導体デバイスが提供される。 According to the present invention, a curable resin composition having excellent resolution at the time of pattern formation, a cured film obtained by curing the curable resin composition, a laminate containing the cured film, a method for producing the cured film, and the like. And a semiconductor device including the cured film or the laminate is provided.
 以下、本発明の主要な実施形態について説明する。しかしながら、本発明は、明示した実施形態に限られるものではない。
 本明細書において「~」という記号を用いて表される数値範囲は、「~」の前後に記載される数値をそれぞれ下限値及び上限値として含む範囲を意味する。
 本明細書において「工程」との語は、独立した工程だけではなく、その工程の所期の作用が達成できる限りにおいて、他の工程と明確に区別できない工程も含む意味である。
 本明細書における基(原子団)の表記において、置換及び無置換を記していない表記は、置換基を有しない基(原子団)と共に置換基を有する基(原子団)をも包含する。例えば、「アルキル基」とは、置換基を有しないアルキル基(無置換アルキル基)のみならず、置換基を有するアルキル基(置換アルキル基)をも包含する。
 本明細書において「露光」とは、特に断らない限り、光を用いた露光のみならず、電子線、イオンビーム等の粒子線を用いた露光も含む。また、露光に用いられる光としては、水銀灯の輝線スペクトル、エキシマレーザーに代表される遠紫外線、極紫外線(EUV光)、X線、電子線等の活性光線又は放射線が挙げられる。
 本明細書において、「(メタ)アクリレート」は、「アクリレート」及び「メタクリレート」の両方、又は、いずれかを意味し、「(メタ)アクリル」は、「アクリル」及び「メタクリル」の両方、又は、いずれかを意味し、「(メタ)アクリロイル」は、「アクリロイル」及び「メタクリロイル」の両方、又は、いずれかを意味する。
 本明細書において、構造式中のMeはメチル基を表し、Etはエチル基を表し、Buはブチル基を表し、Phはフェニル基を表す。
 本明細書において、全固形分とは、組成物の全成分から溶剤を除いた成分の総質量をいう。また本明細書において、固形分濃度とは、組成物の総質量に対する、溶剤を除く他の成分の質量百分率である。
 本明細書において、重量平均分子量(Mw)及び数平均分子量(Mn)は、特に述べない限り、ゲル浸透クロマトグラフィ(GPC測定)に従い、ポリスチレン換算値として定義される。本明細書において、重量平均分子量(Mw)及び数平均分子量(Mn)は、例えば、HLC-8220GPC(東ソー(株)製)を用い、カラムとしてガードカラムHZ-L、TSKgel Super HZM-M、TSKgel Super HZ4000、TSKgel Super HZ3000、TSKgel Super HZ2000(東ソー(株)製)を用いることによって求めることができる。それらの分子量は特に述べない限り、溶離液としてTHF(テトラヒドロフラン)を用いて測定したものとする。また、GPC測定における検出は特に述べない限り、UV線(紫外線)の波長254nm検出器を使用したものとする。
 本明細書において、積層体を構成する各層の位置関係について、「上」又は「下」と記載したときには、注目している複数の層のうち基準となる層の上側又は下側に他の層があればよい。すなわち、基準となる層と上記他の層の間に、更に第3の層や要素が介在していてもよく、基準となる層と上記他の層は接している必要はない。また、特に断らない限り、基材に対し層が積み重なっていく方向を「上」と称し、又は、感光膜がある場合には、基材から感光膜へ向かう方向を「上」と称し、その反対方向を「下」と称する。なお、このような上下方向の設定は、本明細書中における便宜のためであり、実際の態様においては、本明細書における「上」方向は、鉛直上向きと異なることもありうる。
 本明細書において、特段の記載がない限り、組成物は、組成物に含まれる各成分として、その成分に該当する2種以上の化合物を含んでもよい。また、特段の記載がない限り、組成物における各成分の含有量とは、その成分に該当する全ての化合物の合計含有量を意味する。
 本明細書において、特に述べない限り、温度は23℃、気圧は101,325Pa(1気圧)、相対湿度は50%RHである。
 本明細書において、好ましい態様の組み合わせは、より好ましい態様である。
Hereinafter, main embodiments of the present invention will be described. However, the present invention is not limited to the specified embodiments.
In the present specification, the numerical range represented by the symbol "-" means a range including the numerical values before and after "-" as the lower limit value and the upper limit value, respectively.
In the present specification, the term "process" means not only an independent process but also a process that cannot be clearly distinguished from other processes as long as the desired action of the process can be achieved.
In the notation of a group (atomic group) in the present specification, the notation not describing substitution and non-substitution includes a group having a substituent (atomic group) as well as a group having no substituent (atomic group). For example, the "alkyl group" includes not only an alkyl group having no substituent (unsubstituted alkyl group) but also an alkyl group having a substituent (substituted alkyl group).
Unless otherwise specified, the term "exposure" as used herein includes not only exposure using light but also exposure using particle beams such as an electron beam and an ion beam. Examples of the light used for exposure include the emission line spectrum of a mercury lamp, far ultraviolet rays typified by an excimer laser, extreme ultraviolet rays (EUV light), X-rays, active rays such as electron beams, or radiation.
As used herein, "(meth) acrylate" means both "acrylate" and "methacrylate", or either, and "(meth) acrylic" means both "acrylic" and "methacrylic", or , And "(meth) acryloyl" means both "acryloyl" and "methacrylic", or either.
In the present specification, Me in the structural formula represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group.
In the present specification, the total solid content means the total mass of all the components of the composition excluding the solvent. Further, in the present specification, the solid content concentration is the mass percentage of other components excluding the solvent with respect to the total mass of the composition.
In the present specification, the weight average molecular weight (Mw) and the number average molecular weight (Mn) are defined as polystyrene-equivalent values according to gel permeation chromatography (GPC measurement) unless otherwise specified. In the present specification, for the weight average molecular weight (Mw) and the number average molecular weight (Mn), for example, HLC-8220GPC (manufactured by Tosoh Corporation) is used, and guard columns HZ-L, TSKgel Super HZM-M, and TSKgel are used as columns. It can be obtained by using Super HZ4000, TSKgel Super HZ3000, and TSKgel Super HZ2000 (manufactured by Tosoh Corporation). Unless otherwise specified, their molecular weights shall be measured using THF (tetrahydrofuran) as an eluent. Further, unless otherwise specified, the detection in the GPC measurement shall be performed by using a detector having a wavelength of 254 nm of UV rays (ultraviolet rays).
In the present specification, when the positional relationship of each layer constituting the laminated body is described as "upper" or "lower", the other layer is on the upper side or the lower side of the reference layer among the plurality of layers of interest. All you need is. That is, a third layer or element may be further interposed between the reference layer and the other layer, and the reference layer and the other layer need not be in contact with each other. Unless otherwise specified, the direction in which the layers are stacked on the base material is referred to as "upper", or if there is a photosensitive film, the direction from the base material to the photosensitive film is referred to as "upper". The opposite direction is referred to as "down". It should be noted that such a vertical setting is for convenience in the present specification, and in an actual embodiment, the "upward" direction in the present specification may be different from the vertical upward direction.
Unless otherwise specified in the present specification, the composition may contain, as each component contained in the composition, two or more compounds corresponding to the component. Unless otherwise specified, the content of each component in the composition means the total content of all the compounds corresponding to the component.
In the present specification, unless otherwise specified, the temperature is 23 ° C., the atmospheric pressure is 101,325 Pa (1 atm), and the relative humidity is 50% RH.
In the present specification, the combination of preferred embodiments is a more preferred embodiment.
(硬化性樹脂組成物)
 本発明の硬化性樹脂組成物は、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリイミド前駆体、ベンゾオキサゾール構造を含むポリベンゾオキサゾール前駆体、及び、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリアミドイミド前駆体よりなる群から選ばれた少なくとも1種の樹脂(以下、「特定樹脂」ともいう。)、並びに、有機金属錯体を含み、1gの上記ポリイミド前駆体に含まれる上記環状イミド構造及び上記環状イソイミド構造の合計含有モル量が、0.08~1.68mmol/gであり、1gの上記ポリベンゾオキサゾール前駆体に含まれる上記ベンゾオキサゾール構造の含有モル量が、0.22~3.97mmol/gであり、1gの上記ポリアミドイミド前駆体に含まれる上記環状イミド構造及び上記環状イソイミド構造の合計含有モル量が、0.062~1.186mmol/gである。
(Curable resin composition)
The curable resin composition of the present invention comprises a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and at least one of a cyclic imide structure and a cyclic isoimide structure. The cyclic imide structure contained in 1 g of the polyimide precursor containing at least one resin (hereinafter, also referred to as “specific resin”) selected from the group consisting of polyamide imide precursors containing an organic metal complex. The total molar content of the cyclic isoimide structure is 0.08 to 1.68 mmol / g, and the molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor is 0.22 to 3 It is .97 mmol / g, and the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamideimide precursor is 0.062 to 1.186 mmol / g.
 本発明の硬化性樹脂組成物は、露光及び現像に供される感光膜の形成に用いられることが好ましく、露光及び有機溶剤を含む現像液を用いた現像に供される膜の形成に用いられることが好ましい。
 また、本発明の硬化性樹脂組成物は、ネガ型現像に供される感光膜の形成に用いられることが好ましい。
 本発明において、ネガ型現像とは、露光及び現像において、現像により非露光部が除去される現像をいい、ポジ型現像とは、現像により露光部が除去される現像をいう。
 上記露光の方法、上記現像液、及び、上記現像の方法としては、例えば、後述する硬化膜の製造方法の説明における露光工程において説明された露光方法、現像工程において説明された現像液及び現像方法が使用される。
The curable resin composition of the present invention is preferably used for forming a photosensitive film to be subjected to exposure and development, and is used for forming a film to be subjected to exposure and development using a developing solution containing an organic solvent. Is preferable.
Further, the curable resin composition of the present invention is preferably used for forming a photosensitive film to be used for negative development.
In the present invention, the negative type development means the development in which the non-exposed part is removed by the development in the exposure and the development, and the positive type development means the development in which the exposed part is removed by the development.
The exposure method, the developer, and the developing method include, for example, the exposure method described in the exposure step in the description of the method for producing a cured film described later, the developer and the developing method described in the developing step. Is used.
 本発明の硬化性樹脂組成物は、露光感度及び得られるパターンの耐薬品性に優れる。
 上記効果が得られるメカニズムは不明であるが、下記のように推測される。
The curable resin composition of the present invention is excellent in exposure sensitivity and chemical resistance of the obtained pattern.
The mechanism by which the above effect is obtained is unknown, but it is presumed as follows.
 例えば特許文献1に記載のように、耐薬品性の向上のため、硬化性樹脂組成物に有機チタン化合物等を添加することが行われている。
 しかし、有機金属錯体を含む組成物を用いてパターニングした場合、有機金属錯体が膜内で凝集してしまい、解像性が低下する場合があった。
 本発明においては、樹脂組成物中の樹脂として環状イミド構造、環状イソイミド構造又はベンゾオキサゾール構造を特定の含有量で含む樹脂を用いる。これらの構造と有機金属錯体とが強固に相互作用することにより、組成物に含まれる有機金属錯体が膜内で均一に近い状態で分散すると考えられる。その結果、本発明の樹脂組成物は解像性に優れると推測される。
For example, as described in Patent Document 1, in order to improve chemical resistance, an organic titanium compound or the like is added to the curable resin composition.
However, when patterning is performed using a composition containing an organometallic complex, the organometallic complex may aggregate in the film and the resolution may decrease.
In the present invention, as the resin in the resin composition, a resin containing a cyclic imide structure, a cyclic isoimide structure or a benzoxazole structure at a specific content is used. It is considered that the organometallic complex contained in the composition is dispersed in the film in a nearly uniform state by the strong interaction between these structures and the organometallic complex. As a result, it is presumed that the resin composition of the present invention has excellent resolution.
 以下、本発明の硬化性樹脂組成物に含まれる成分について詳細に説明する。 Hereinafter, the components contained in the curable resin composition of the present invention will be described in detail.
<特定樹脂>
 本発明の硬化性樹脂組成物は、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリイミド前駆体、ベンゾオキサゾール構造を含むポリベンゾオキサゾール前駆体、及び、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリアミドイミド前駆体よりなる群から選ばれた少なくとも1種の樹脂(特定樹脂)を含む。
 本発明の硬化性樹脂組成物は、特定樹脂として、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリイミド前駆体を含むことが好ましい。
 また、特定樹脂はラジカル重合性基を有することが好ましい。
 特定樹脂がラジカル重合性基を有する場合、硬化性樹脂組成物は、感光剤として後述の光ラジカル重合開始剤を含むことが好ましく、感光剤として後述の光ラジカル重合開始剤を含み、かつ、後述のラジカル架橋剤を含むことがより好ましく、感光剤として後述の光ラジカル重合開始剤を含み、後述のラジカル架橋剤を含み、かつ、後述の増感剤を含むことが更に好ましい。このような硬化性樹脂組成物からは、例えば、ネガ型感光膜が形成される。
 また、特定樹脂は、酸分解性基等の極性変換基を有していてもよい。
 特定樹脂が酸分解性基を有する場合、硬化性樹脂組成物は、感光剤として後述の光酸発生剤を含むことが好ましい。このような硬化性樹脂組成物からは、例えば、化学増幅型であるポジ型感光膜又はネガ型感光膜が形成される。
<Specific resin>
The curable resin composition of the present invention comprises a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and at least one of a cyclic imide structure and a cyclic isoimide structure. It contains at least one resin (specific resin) selected from the group consisting of polyamide-imide precursors containing.
The curable resin composition of the present invention preferably contains, as the specific resin, a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure.
Further, the specific resin preferably has a radically polymerizable group.
When the specific resin has a radically polymerizable group, the curable resin composition preferably contains a photoradical polymerization initiator described later as a photosensitizer, contains a photoradical polymerization initiator described below as a photosensitizer, and is described later. It is more preferable to contain the radical cross-linking agent described above, and it is further preferable to contain the photoradical polymerization initiator described below as the photosensitizer, the radical cross-linking agent described below, and the sensitizer described below. From such a curable resin composition, for example, a negative photosensitive film is formed.
Further, the specific resin may have a polarity converting group such as an acid-decomposable group.
When the specific resin has an acid-decomposable group, the curable resin composition preferably contains a photoacid generator described later as a photosensitizer. From such a curable resin composition, for example, a chemically amplified positive type photosensitive film or a negative type photosensitive film is formed.
 樹脂組成物が特定樹脂としてポリイミド前駆体を含む場合、解像性の観点からは、1gの上記ポリイミド前駆体における環状イミド構造及び環状イソイミド構造の合計含有モル量は、0.08~1.68mmol/gであり、0.10~1.00mmol/gであることが好ましく、0.12~0.80mmol/gであることがより好ましく、0.15~0.60mmol/gであることが更に好ましい。
 また、ポリイミド前駆体は、環状イミド構造を少なくとも含むことが好ましい。
 ポリイミド前駆体は、環状イミド構造及び環状イソイミド構造の少なくとも一方を側鎖に有してもよいが、主鎖に有することが好ましい。
 本明細書において、樹脂の主鎖とは、分子中で相対的に最も長い分子鎖をいう。
 樹脂組成物が特定樹脂としてポリベンゾオキサゾール前駆体を含む場合、解像性の観点からは、1gの上記ポリベンゾオキサゾール前駆体におけるベンゾオキサゾール構造の含有モル量は、0.22~3.97mmol/gであり、0.25~3.00mmol/gであることが好ましく、0.28~2.50mmol/gであることがより好ましく、0.30~2.00mmol/gであることが更に好ましい。
 ポリベンゾオキサゾール前駆体は、ベンゾオキサゾール構造を側鎖に有してもよいが、主鎖に有することが好ましい。
 樹脂組成物が特定樹脂としてポリアミドイミド前駆体を含む場合、解像性の観点からは、1gの上記ポリアミドイミド前駆体における環状イミド構造及び環状イソイミド構造の合計含有モル量は、0.062~1.186mmol/gであり、0.070~1.000mmol/gであることが好ましく、0.080~0.800mmol/gであることがより好ましく、0.090~0.700mmol/gであることが更に好ましい。
 また、ポリアミドイミド前駆体は、環状イミド構造を少なくとも含むことが好ましい。
 ポリアミドイミド前駆体は、環状イミド構造及び環状イソイミド構造の少なくとも一方を側鎖に有してもよいが、主鎖に有することが好ましい。
When the resin composition contains a polyimide precursor as a specific resin, the total molar content of the cyclic imide structure and the cyclic isoimide structure in 1 g of the polyimide precursor is 0.08 to 1.68 mmol from the viewpoint of resolution. / G, preferably 0.10 to 1.00 mmol / g, more preferably 0.12 to 0.80 mmol / g, and further preferably 0.15 to 0.60 mmol / g. preferable.
Further, the polyimide precursor preferably contains at least a cyclic imide structure.
The polyimide precursor may have at least one of a cyclic imide structure and a cyclic isoimide structure in the side chain, but preferably has at least one in the main chain.
In the present specification, the main chain of a resin means a relatively longest molecular chain in a molecule.
When the resin composition contains a polybenzoxazole precursor as a specific resin, the molar content of the benzoxazole structure in 1 g of the polybenzoxazole precursor is 0.22 to 3.97 mmol / from the viewpoint of resolution. It is g, preferably 0.25 to 3.00 mmol / g, more preferably 0.28 to 2.50 mmol / g, and even more preferably 0.30 to 2.00 mmol / g. ..
The polybenzoxazole precursor may have a benzoxazole structure in the side chain, but is preferably in the main chain.
When the resin composition contains a polyamide-imide precursor as a specific resin, the total molar content of the cyclic imide structure and the cyclic isoimide structure in 1 g of the above-mentioned polyamide-imide precursor is 0.062 to 1 from the viewpoint of resolution. .186 mmol / g, preferably 0.070 to 1.000 mmol / g, more preferably 0.080 to 0.800 mmol / g, and 0.090 to 0.700 mmol / g. Is more preferable.
Further, the polyamide-imide precursor preferably contains at least a cyclic imide structure.
The polyamide-imide precursor may have at least one of a cyclic imide structure and a cyclic isoimide structure in the side chain, but preferably has at least one in the main chain.
〔ポリイミド前駆体〕
 本発明で用いるポリイミド前駆体は、その種類等特に定めるものではないが、下記式(2)で表される繰り返し単位を含むことが好ましい。
Figure JPOXMLDOC01-appb-C000001

 式(2)中、A及びAは、それぞれ独立に、酸素原子又はNHを表し、R111は、2価の有機基を表し、R115は、4価の有機基を表し、R113及びR114は、それぞれ独立に、水素原子又は1価の有機基を表す。
[Polyimide precursor]
The type of the polyimide precursor used in the present invention is not particularly specified, but it is preferable that the polyimide precursor contains a repeating unit represented by the following formula (2).
Figure JPOXMLDOC01-appb-C000001

In formula (2), A 1 and A 2 independently represent an oxygen atom or NH, R 111 represents a divalent organic group, R 115 represents a tetravalent organic group, and R 113. And R 114 independently represent a hydrogen atom or a monovalent organic group.
 式(2)におけるA及びAは、それぞれ独立に、酸素原子又はNHを表し、酸素原子が好ましい。
 式(2)におけるR111は、2価の有機基を表す。2価の有機基としては、直鎖又は分岐の脂肪族基、環状の脂肪族基及び芳香族基を含む基が例示され、炭素数2~20の直鎖又は分岐の脂肪族基、炭素数6~20の環状の脂肪族基、炭素数6~20の芳香族基、又は、これらの組み合わせからなる基が好ましく、炭素数6~20の芳香族基を含む基がより好ましい。本発明の特に好ましい実施形態として、-Ar-L-Ar-で表される基であることが例示される。但し、Arは、それぞれ独立に、芳香族基であり、Lは、フッ素原子で置換されていてもよい炭素数1~10の脂肪族炭化水素基、-O-、-CO-、-S-、-SO-又はNHCO-、あるいは、上記の2つ以上の組み合わせからなる基である。これらの好ましい範囲は、上述のとおりである。
A 1 and A 2 in the formula (2) independently represent an oxygen atom or NH, and an oxygen atom is preferable.
R 111 in the formula (2) represents a divalent organic group. Examples of the divalent organic group include a linear or branched aliphatic group, a cyclic aliphatic group and a group containing an aromatic group, and a linear or branched aliphatic group having 2 to 20 carbon atoms and a carbon number of carbon atoms. A cyclic aliphatic group of 6 to 20, an aromatic group having 6 to 20 carbon atoms, or a group composed of a combination thereof is preferable, and a group containing an aromatic group having 6 to 20 carbon atoms is more preferable. As a particularly preferable embodiment of the present invention, a group represented by -Ar-L-Ar- is exemplified. However, Ar is an aromatic group independently, and L is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be substituted with a fluorine atom, —O—, −CO−, —S—. , -SO 2- or NHCO-, or a group consisting of a combination of two or more of the above. These preferred ranges are as described above.
 R111は、ジアミンから誘導されることが好ましい。ポリイミド前駆体の製造に用いられるジアミンとしては、直鎖又は分岐の脂肪族、環状の脂肪族又は芳香族ジアミンなどが挙げられる。ジアミンは、1種のみ用いてもよいし、2種以上用いてもよい。
具体的には、炭素数2~20の直鎖又は分岐の脂肪族基、炭素数6~20の環状の脂肪族基、炭素数6~20の芳香族基、又は、これらの組み合わせからなる基を含むジアミンであることが好ましく、炭素数6~20の芳香族基からなる基を含むジアミンであることがより好ましい。芳香族基の例としては、下記が挙げられる。
R 111 is preferably derived from diamine. Examples of the diamine used for producing the polyimide precursor include linear or branched aliphatic, cyclic aliphatic or aromatic diamines. Only one kind of diamine may be used, or two or more kinds of diamines may be used.
Specifically, a linear or branched aliphatic group having 2 to 20 carbon atoms, a cyclic aliphatic group having 6 to 20 carbon atoms, an aromatic group having 6 to 20 carbon atoms, or a group consisting of a combination thereof. The diamine containing the above is preferable, and the diamine containing a group consisting of an aromatic group having 6 to 20 carbon atoms is more preferable. Examples of aromatic groups include:
Figure JPOXMLDOC01-appb-C000002
 式中、Aは、単結合、又は、フッ素原子で置換されていてもよい炭素数1~10の脂肪族炭化水素基、-O-、-C(=O)-、-S-、-SO-、NHCO-、又は、これらの組み合わせから選択される基であることが好ましく、単結合、フッ素原子で置換されていてもよい炭素数1~3のアルキレン基、-O-、-C(=O)-、-S-、又は、-SO-から選択される基であることがより好ましく、-CH-、-O-、-S-、-SO-、-C(CF-、又は、-C(CH-であることが更に好ましい。
 式中、*は他の構造との結合部位を表す。
Figure JPOXMLDOC01-appb-C000002
In the formula, A is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be replaced with a single bond or a fluorine atom, —O—, —C (= O) −, —S—, —SO. 2 -, NHCO-, or is preferably a group selected from these combinations, a single bond, an alkylene group which ~ 1 carbon atoms which may be 3-substituted by fluorine atoms, -O -, - C ( = O) -, - S-, or, -SO 2 -, more preferably a group selected from, -CH 2 -, - O - , - S -, - SO 2 -, - C (CF 3 ) 2- or -C (CH 3 ) 2- is more preferable.
In the formula, * represents the binding site with other structures.
 ジアミンとしては、具体的には、1,2-ジアミノエタン、1,2-ジアミノプロパン、1,3-ジアミノプロパン、1,4-ジアミノブタン及び1,6-ジアミノヘキサン;1,2-又は1,3-ジアミノシクロペンタン、1,2-、1,3-又は1,4-ジアミノシクロヘキサン、1,2-、1,3-又は1,4-ビス(アミノメチル)シクロヘキサン、ビス-(4-アミノシクロヘキシル)メタン、ビス-(3-アミノシクロヘキシル)メタン、4,4’-ジアミノ-3,3’-ジメチルシクロヘキシルメタン及びイソホロンジアミン;m-又はp-フェニレンジアミン、ジアミノトルエン、4,4’-又は3,3’-ジアミノビフェニル、4,4’-ジアミノジフェニルエーテル、3,3-ジアミノジフェニルエーテル、4,4’-及び3,3’-ジアミノジフェニルメタン、4,4’-及び3,3’-ジアミノジフェニルスルホン、4,4’-及び3,3’-ジアミノジフェニルスルフィド、4,4’-又は3,3’-ジアミノベンゾフェノン、3,3’-ジメチル-4,4’-ジアミノビフェニル、2,2’-ジメチル-4,4’-ジアミノビフェニル、3,3’-ジメトキシ-4,4’-ジアミノビフェニル、2,2-ビス(4-アミノフェニル)プロパン、2,2-ビス(4-アミノフェニル)ヘキサフルオロプロパン、2,2-ビス(3-ヒドロキシ-4-アミノフェニル)プロパン、2,2-ビス(3-ヒドロキシ-4-アミノフェニル)ヘキサフルオロプロパン、2,2-ビス(3-アミノ-4-ヒドロキシフェニル)プロパン、2,2-ビス(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン、ビス(3-アミノ-4-ヒドロキシフェニル)スルホン、ビス(4-アミノ-3-ヒドロキシフェニル)スルホン、4,4’-ジアミノパラテルフェニル、4,4’-ビス(4-アミノフェノキシ)ビフェニル、ビス[4-(4-アミノフェノキシ)フェニル]スルホン、ビス[4-(3-アミノフェノキシ)フェニル]スルホン、ビス[4-(2-アミノフェノキシ)フェニル]スルホン、1,4-ビス(4-アミノフェノキシ)ベンゼン、9,10-ビス(4-アミノフェニル)アントラセン、3,3’-ジメチル-4,4’-ジアミノジフェニルスルホン、1,3-ビス(4-アミノフェノキシ)ベンゼン、1,3-ビス(3-アミノフェノキシ)ベンゼン、1,3-ビス(4-アミノフェニル)ベンゼン、3,3’-ジエチル-4,4’-ジアミノジフェニルメタン、3,3’-ジメチル-4,4’-ジアミノジフェニルメタン、4,4’-ジアミノオクタフルオロビフェニル、2,2-ビス[4-(4-アミノフェノキシ)フェニル]プロパン、2,2-ビス[4-(4-アミノフェノキシ)フェニル]ヘキサフルオロプロパン、9,9-ビス(4-アミノフェニル)-10-ヒドロアントラセン、3,3’,4,4’-テトラアミノビフェニル、3,3’,4,4’-テトラアミノジフェニルエーテル、1,4-ジアミノアントラキノン、1,5-ジアミノアントラキノン、3,3-ジヒドロキシ-4,4’-ジアミノビフェニル、9,9’-ビス(4-アミノフェニル)フルオレン、4,4’-ジメチル-3,3’-ジアミノジフェニルスルホン、3,3’,5,5’-テトラメチル-4,4’-ジアミノジフェニルメタン、2,4-及び2,5-ジアミノクメン、2,5-ジメチル-p-フェニレンジアミン、アセトグアナミン、2,3,5,6-テトラメチル-p-フェニレンジアミン、2,4,6-トリメチル-m-フェニレンジアミン、ビス(3-アミノプロピル)テトラメチルジシロキサン、2,7-ジアミノフルオレン、2,5-ジアミノピリジン、1,2-ビス(4-アミノフェニル)エタン、ジアミノベンズアニリド、ジアミノ安息香酸のエステル、1,5-ジアミノナフタレン、ジアミノベンゾトリフルオライド、1,3-ビス(4-アミノフェニル)ヘキサフルオロプロパン、1,4-ビス(4-アミノフェニル)オクタフルオロブタン、1,5-ビス(4-アミノフェニル)デカフルオロペンタン、1,7-ビス(4-アミノフェニル)テトラデカフルオロヘプタン、2,2-ビス[4-(3-アミノフェノキシ)フェニル]ヘキサフルオロプロパン、2,2-ビス[4-(2-アミノフェノキシ)フェニル]ヘキサフルオロプロパン、2,2-ビス[4-(4-アミノフェノキシ)-3,5-ジメチルフェニル]ヘキサフルオロプロパン、2,2-ビス[4-(4-アミノフェノキシ)-3,5-ビス(トリフルオロメチル)フェニル]ヘキサフルオロプロパン、p-ビス(4-アミノ-2-トリフルオロメチルフェノキシ)ベンゼン、4,4’-ビス(4-アミノ-2-トリフルオロメチルフェノキシ)ビフェニル、4,4’-ビス(4-アミノ-3-トリフルオロメチルフェノキシ)ビフェニル、4,4’-ビス(4-アミノ-2-トリフルオロメチルフェノキシ)ジフェニルスルホン、4,4’-ビス(3-アミノ-5-トリフルオロメチルフェノキシ)ジフェニルスルホン、2,2-ビス[4-(4-アミノ-3-トリフルオロメチルフェノキシ)フェニル]ヘキサフルオロプロパン、3,3’,5,5’-テトラメチル-4,4’-ジアミノビフェニル、4,4’-ジアミノ-2,2’-ビス(トリフルオロメチル)ビフェニル、2,2’,5,5’,6,6’-ヘキサフルオロトリジン及び4,4’-ジアミノクアテルフェニルから選ばれる少なくとも1種のジアミンが挙げられる。 Specific examples of the diamine include 1,2-diaminoethane, 1,2-diaminopropane, 1,3-diaminopropane, 1,4-diaminobutane and 1,6-diaminohexane; 1,2- or 1 , 3-Diaminocyclopentane, 1,2-, 1,3- or 1,4-diaminocyclohexane, 1,2-, 1,3- or 1,4-bis (aminomethyl) cyclohexane, bis- (4-) Aminocyclohexyl) methane, bis- (3-aminocyclohexyl) methane, 4,4'-diamino-3,3'-dimethylcyclohexylmethane and isophoronediamine; m- or p-phenylenediamine, diaminotoluene, 4,4'- Or 3,3'-diaminobiphenyl, 4,4'-diaminodiphenyl ether, 3,3-diaminodiphenyl ether, 4,4'-and 3,3'-diaminodiphenylmethane, 4,4'-and 3,3'-diamino Diphenylsulfone, 4,4'-and 3,3'-diaminodiphenylsulfide, 4,4'-or 3,3'-diaminobenzophenone, 3,3'-dimethyl-4,4'-diaminobiphenyl, 2,2 '-Dimethyl-4,4'-diaminobiphenyl, 3,3'-dimethoxy-4,4'-diaminobiphenyl, 2,2-bis (4-aminophenyl) propane, 2,2-bis (4-aminophenyl) ) Hexafluoropropane, 2,2-bis (3-hydroxy-4-aminophenyl) propane, 2,2-bis (3-hydroxy-4-aminophenyl) hexafluoropropane, 2,2-bis (3-amino) -4-Hydroxyphenyl) propane, 2,2-bis (3-amino-4-hydroxyphenyl) hexafluoropropane, bis (3-amino-4-hydroxyphenyl) sulfone, bis (4-amino-3-hydroxyphenyl) ) Sulfur, 4,4'-diaminoparaterphenyl, 4,4'-bis (4-aminophenoxy) biphenyl, bis [4- (4-aminophenoxy) phenyl] sulfone, bis [4- (3-aminophenoxy) ) Phenyl] sulfone, bis [4- (2-aminophenoxy) phenyl] sulfone, 1,4-bis (4-aminophenoxy) benzene, 9,10-bis (4-aminophenyl) anthracene, 3,3'- Dimethyl-4,4'-diaminodiphenylsulfone, 1,3-bis (4-aminophenoxy) benzene, 1,3-bis (3-aminophenoxy) benzene, 1,3-bis (4-aminophenoxy) Aminophenyl) benzene, 3,3'-diethyl-4,4'-diaminodiphenylmethane, 3,3'-dimethyl-4,4'-diaminodiphenylmethane, 4,4'-diaminooctafluorobiphenyl, 2,2-bis [4- (4-Aminophenoxy) phenyl] propane, 2,2-bis [4- (4-aminophenoxy) phenyl] hexafluoropropane, 9,9-bis (4-aminophenyl) -10-hydroanthracene, 3,3', 4,4'-tetraaminobiphenyl, 3,3', 4,4'-tetraaminodiphenyl ether, 1,4-diaminoanthraquinone, 1,5-diaminoanthraquinone, 3,3-dihydroxy-4, 4'-Diaminobiphenyl, 9,9'-bis (4-aminophenyl) fluorene, 4,4'-dimethyl-3,3'-diaminodiphenylsulfone, 3,3', 5,5'-tetramethyl-4 , 4'-diaminodiphenylmethane, 2,4- and 2,5-diaminocumene, 2,5-dimethyl-p-phenylenediamine, acetguanamine, 2,3,5,6-tetramethyl-p-phenylenediamine, 2, , 4,6-trimethyl-m-phenylenediamine, bis (3-aminopropyl) tetramethyldisiloxane, 2,7-diaminofluorene, 2,5-diaminopyridine, 1,2-bis (4-aminophenyl) ethane , Diaminobenzanilide, ester of diaminobenzoic acid, 1,5-diaminonaphthalene, diaminobenzotrifluoride, 1,3-bis (4-aminophenyl) hexafluoropropane, 1,4-bis (4-aminophenyl) octa Fluorobutane, 1,5-bis (4-aminophenyl) decafluoropentane, 1,7-bis (4-aminophenyl) tetradecafluoroheptane, 2,2-bis [4- (3-aminophenoxy) phenyl] Hexafluoropropane, 2,2-bis [4- (2-aminophenoxy) phenyl] hexafluoropropane, 2,2-bis [4- (4-aminophenoxy) -3,5-dimethylphenyl] hexafluoropropane, 2,2-Bis [4- (4-aminophenoxy) -3,5-bis (trifluoromethyl) phenyl] hexafluoropropane, p-bis (4-amino-2-trifluoromethylphenoxy) benzene, 4, 4'-bis (4-amino-2-trifluoromethylphenoxy) biphenyl, 4,4'-bis (4-amino-3-trifluo) Lomethylphenoxy) Biphenyl, 4,4'-bis (4-amino-2-trifluoromethylphenoxy) diphenylsulfone, 4,4'-bis (3-amino-5-trifluoromethylphenoxy) diphenylsulfone, 2, 2-Bis [4- (4-amino-3-trifluoromethylphenoxy) phenyl] hexafluoropropane, 3,3', 5,5'-tetramethyl-4,4'-diaminobiphenyl, 4,4'- At least one selected from diamino-2,2'-bis (trifluoromethyl) biphenyl, 2,2', 5,5', 6,6'-hexafluorotridin and 4,4'-diaminoquaterphenyl. Diamine can be mentioned.
 また、国際公開第2017/038598号の段落0030~0031に記載のジアミン(DA-1)~(DA-18)も好ましい。 Further, the diamines (DA-1) to (DA-18) described in paragraphs 0030 to 0031 of International Publication No. 2017/0385898 are also preferable.
 また、国際公開第2017/038598号の段落0032~0034に記載の2つ以上のアルキレングリコール単位を主鎖にもつジアミンも好ましく用いられる。 Further, a diamine having two or more alkylene glycol units in the main chain described in paragraphs 0032 to 0034 of International Publication No. 2017/0385898 is also preferably used.
 R111は、得られる有機膜の柔軟性の観点から、-Ar-L-Ar-で表されることが好ましい。但し、Arは、それぞれ独立に、芳香族基であり、Lは、フッ素原子で置換されていてもよい炭素数1~10の脂肪族炭化水素基、-O-、-CO-、-S-、-SO-又はNHCO-、あるいは、上記の2つ以上の組み合わせからなる基である。Arは、フェニレン基が好ましく、Lは、フッ素原子で置換されていてもよい炭素数1又は2の脂肪族炭化水素基、-O-、-CO-、-S-又はSO-が好ましい。ここでの脂肪族炭化水素基は、アルキレン基が好ましい。 R 111 is preferably represented by —Ar—L—Ar— from the viewpoint of the flexibility of the obtained organic film. However, Ar is an aromatic group independently, and L is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be substituted with a fluorine atom, —O—, −CO−, —S—. , -SO 2- or NHCO-, or a group consisting of a combination of two or more of the above. Ar is a phenylene group is preferably, L is an aliphatic hydrocarbon group having a fluorine atom are carbon atoms and optionally 1 or substituted by 2, -O -, - CO - , - S- or SO 2 - are preferred. The aliphatic hydrocarbon group here is preferably an alkylene group.
 また、R111は、i線透過率の観点から、下記式(51)又は式(61)で表される2価の有機基であることが好ましい。特に、i線透過率、入手のし易さの観点から、式(61)で表される2価の有機基であることがより好ましい。
 式(51)
Figure JPOXMLDOC01-appb-C000003

 式(51)中、R50~R57は、それぞれ独立に、水素原子、フッ素原子又は1価の有機基であり、R50~R57の少なくとも1つは、フッ素原子、メチル基又はトリフルオロメチル基である。
 R50~R57の1価の有機基としては、炭素数1~10(好ましくは炭素数1~6)の無置換のアルキル基、炭素数1~10(好ましくは炭素数1~6)のフッ化アルキル基等が挙げられる。
Figure JPOXMLDOC01-appb-C000004

 式(61)中、R58及びR59は、それぞれ独立に、フッ素原子又はトリフルオロメチル基である。
 式(51)又は(61)の構造を与えるジアミン化合物としては、2,2’-ジメチルベンジジン、2,2’-ビス(トリフルオロメチル)-4,4’-ジアミノビフェニル、2,2’-ビス(フルオロ)-4,4’-ジアミノビフェニル、4,4’-ジアミノオクタフルオロビフェニル等が挙げられる。これらは1種で又は2種以上を組み合わせて用いてもよい。
Further, R 111 is preferably a divalent organic group represented by the following formula (51) or formula (61) from the viewpoint of i-ray transmittance. In particular, from the viewpoint of i-ray transmittance and availability, a divalent organic group represented by the formula (61) is more preferable.
Equation (51)
Figure JPOXMLDOC01-appb-C000003

In formula (51), R 50 to R 57 are independently hydrogen atoms, fluorine atoms or monovalent organic groups, and at least one of R 50 to R 57 is a fluorine atom, methyl group or trifluoro. It is a methyl group.
The monovalent organic group of R 50 to R 57 includes an unsubstituted alkyl group having 1 to 10 carbon atoms (preferably 1 to 6 carbon atoms) and 1 to 10 carbon atoms (preferably 1 to 6 carbon atoms). Examples thereof include an alkyl fluoride group.
Figure JPOXMLDOC01-appb-C000004

In formula (61), R 58 and R 59 are independently fluorine atoms or trifluoromethyl groups, respectively.
Examples of the diamine compound giving the structure of the formula (51) or (61) include 2,2'-dimethylbenzidine, 2,2'-bis (trifluoromethyl) -4,4'-diaminobiphenyl, 2,2'-. Examples thereof include bis (fluoro) -4,4'-diaminobiphenyl and 4,4'-diaminooctafluorobiphenyl. These may be used alone or in combination of two or more.
 その他に以下のジアミンも好適に使用できる。
Figure JPOXMLDOC01-appb-C000005
In addition, the following diamines can also be preferably used.
Figure JPOXMLDOC01-appb-C000005
 式(2)におけるR115は、4価の有機基を表す。4価の有機基としては、芳香環を含む4価の有機基が好ましく、下記式(5)又は式(6)で表される基がより好ましい。
式(5)又は式(6)中、*はそれぞれ独立に、他の構造との結合部位を表す。
Figure JPOXMLDOC01-appb-C000006

 式(5)中、R112は、単結合、又は、フッ素原子で置換されていてもよい炭素数1~10の脂肪族炭化水素基、-O-、-CO-、-S-、-SO-、及びNHCO-、ならびに、これらの組み合わせから選択される基であることが好ましく、単結合、フッ素原子で置換されていてもよい炭素数1~3のアルキレン基、-O-、-CO-、-S-及びSO-から選択される基であることがより好ましく、-CH-、-C(CF-、-C(CH-、-O-、-CO-、-S-及びSO-からなる群から選択される2価の基であることが更に好ましい。
R 115 in the formula (2) represents a tetravalent organic group. As the tetravalent organic group, a tetravalent organic group containing an aromatic ring is preferable, and a group represented by the following formula (5) or formula (6) is more preferable.
In formula (5) or formula (6), * independently represents a binding site with another structure.
Figure JPOXMLDOC01-appb-C000006

In formula (5), R 112 is an aliphatic hydrocarbon group having 1 to 10 carbon atoms which may be replaced with a single bond or a fluorine atom, —O—, —CO−, —S—, —SO. 2- , NHCO-, and a group selected from a combination thereof are preferable, and a single bond, an alkylene group having 1 to 3 carbon atoms which may be substituted with a fluorine atom, -O-, -CO. More preferably, it is a group selected from-, -S- and SO 2- , -CH 2- , -C (CF 3 ) 2- , -C (CH 3 ) 2-, -O-, -CO. It is more preferably a divalent group selected from the group consisting of-, -S- and SO 2-.
 R115は、具体的には、テトラカルボン酸二無水物から無水物基の除去後に残存するテトラカルボン酸残基などが挙げられる。テトラカルボン酸二無水物は、1種のみ用いてもよいし、2種以上用いてもよい。
 テトラカルボン酸二無水物は、下記式(O)で表されることが好ましい。
Figure JPOXMLDOC01-appb-C000007

 式(O)中、R115は、4価の有機基を表す。R115の好ましい範囲は式(2)におけるR115と同義であり、好ましい範囲も同様である。
Specific examples of R 115 include tetracarboxylic acid residues remaining after removal of the anhydride group from the tetracarboxylic dianhydride. Only one type of tetracarboxylic dianhydride may be used, or two or more types may be used.
The tetracarboxylic dianhydride is preferably represented by the following formula (O).
Figure JPOXMLDOC01-appb-C000007

In formula (O), R 115 represents a tetravalent organic group. A preferred range of R 115 has the same meaning as R 115 in formula (2), and preferred ranges are also the same.
 テトラカルボン酸二無水物の具体例としては、ピロメリット酸二無水物(PMDA)、3,3’,4,4’-ビフェニルテトラカルボン酸二無水物、3,3’,4,4’-ジフェニルスルフィドテトラカルボン酸二無水物、3,3’,4,4’-ジフェニルスルホンテトラカルボン酸二無水物、3,3’,4,4’-ベンゾフェノンテトラカルボン酸二無水物、3,3’,4,4’-ジフェニルメタンテトラカルボン酸二無水物、2,2’,3,3’-ジフェニルメタンテトラカルボン酸二無水物、2,3,3’,4’-ビフェニルテトラカルボン酸二無水物、2,3,3’,4’-ベンゾフェノンテトラカルボン酸二無水物、4,4’-オキシジフタル酸二無水物、2,3,6,7-ナフタレンテトラカルボン酸二無水物、1,4,5,7-ナフタレンテトラカルボン酸二無水物、2,2-ビス(3,4-ジカルボキシフェニル)プロパン二無水物、2,2-ビス(2,3-ジカルボキシフェニル)プロパン二無水物、2,2-ビス(3,4-ジカルボキシフェニル)ヘキサフルオロプロパン二無水物、1,3-ジフェニルヘキサフルオロプロパン-3,3,4,4-テトラカルボン酸二無水物、1,4,5,6-ナフタレンテトラカルボン酸二無水物、2,2’,3,3’-ジフェニルテトラカルボン酸二無水物、3,4,9,10-ペリレンテトラカルボン酸二無水物、1,2,4,5-ナフタレンテトラカルボン酸二無水物、1,4,5,8-ナフタレンテトラカルボン酸二無水物、1,8,9,10-フェナントレンテトラカルボン酸二無水物、1,1-ビス(2,3-ジカルボキシフェニル)エタン二無水物、1,1-ビス(3,4-ジカルボキシフェニル)エタン二無水物、1,2,3,4-ベンゼンテトラカルボン酸二無水物、ならびに、これらの炭素数1~6のアルキル及び炭素数1~6のアルコキシ誘導体が挙げられる。 Specific examples of the tetracarboxylic dianhydride include pyromellitic dianhydride (PMDA), 3,3', 4,4'-biphenyltetracarboxylic dianhydride, 3,3', 4,4'-. Diphenylsulfide tetracarboxylic dianhydride, 3,3', 4,4'-diphenylsulfonetetracarboxylic dianhydride, 3,3', 4,4'-benzophenonetetracarboxylic dianhydride, 3,3' , 4,4'-Diphenylmethanetetracarboxylic dianhydride, 2,2', 3,3'-diphenylmethanetetracarboxylic dianhydride, 2,3,3', 4'-biphenyltetracarboxylic dianhydride, 2,3,3', 4'-benzophenonetetracarboxylic dianhydride, 4,4'-oxydiphthalic dianhydride, 2,3,6,7-naphthalenetetracarboxylic dianhydride, 1,4,5 , 7-naphthalenetetracarboxylic dianhydride, 2,2-bis (3,4-dicarboxyphenyl) propane dianhydride, 2,2-bis (2,3-dicarboxyphenyl) propane dianhydride, 2 , 2-Bis (3,4-dicarboxyphenyl) hexafluoropropane dianhydride, 1,3-diphenylhexafluoropropane-3,3,4,4-tetracarboxylic dianhydride, 1,4,5, 6-naphthalenetetracarboxylic dianhydride, 2,2', 3,3'-diphenyltetracarboxylic dianhydride, 3,4,9,10-perylenetetracarboxylic dianhydride, 1,2,4 5-Naphthalenetetracarboxylic dianhydride, 1,4,5,8-naphthalenetetracarboxylic dianhydride, 1,8,9,10-phenanthrenetetracarboxylic dianhydride, 1,1-bis (2, 3-Dicarboxyphenyl) ethane dianhydride, 1,1-bis (3,4-dicarboxyphenyl) ethane dianhydride, 1,2,3,4-benzenetetracarboxylic dianhydride, and these Examples thereof include alkyl having 1 to 6 carbon atoms and alkoxy derivatives having 1 to 6 carbon atoms.
また、国際公開第2017/038598号の段落0038に記載のテトラカルボン酸二無水物(DAA-1)~(DAA-5)も好ましい例として挙げられる。 Further, the tetracarboxylic dianhydrides (DAA-1) to (DAA-5) described in paragraph 0038 of International Publication No. 2017/038598 are also mentioned as preferable examples.
 R111とR115の少なくとも一方がOH基を有することも好ましい。より具体的には、R111として、ビスアミノフェノール誘導体の残基が挙げられる。 It is also preferable that at least one of R 111 and R 115 has an OH group. More specifically, as R 111 , a residue of a bisaminophenol derivative can be mentioned.
 R113及びR114は、それぞれ独立に、水素原子又は1価の有機基を表し、R113及びR114の少なくとも一方が重合性基を含むことが好ましく、両方が重合性基を含むことがより好ましい。重合性基としては、熱、ラジカル等の作用により、架橋反応することが可能な基であって、ラジカル重合性基が好ましい。重合性基の具体例としては、エチレン性不飽和結合を有する基、アルコキシメチル基、ヒドロキシメチル基、アシルオキシメチル基、エポキシ基、オキセタニル基、ベンゾオキサゾリル基、ブロックイソシアネート基、メチロール基、アミノ基が挙げられる。ポリイミド前駆体等が有するラジカル重合性基としては、エチレン性不飽和結合を有する基が好ましい。
 エチレン性不飽和結合を有する基としては、ビニル基、(メタ)アリル基、下記式(III)で表される基などが挙げられ、下記式(III)で表される基が好ましい。
R 113 and R 114 each independently represent a hydrogen atom or a monovalent organic group, and it is preferable that at least one of R 113 and R 114 contains a polymerizable group, and both contain a polymerizable group. preferable. The polymerizable group is a group capable of a cross-linking reaction by the action of heat, radicals, etc., and a radical polymerizable group is preferable. Specific examples of the polymerizable group include a group having an ethylenically unsaturated bond, an alkoxymethyl group, a hydroxymethyl group, an acyloxymethyl group, an epoxy group, an oxetanyl group, a benzoxazolyl group, a blocked isocyanate group, a methylol group and an amino. The group is mentioned. As the radically polymerizable group contained in the polyimide precursor or the like, a group having an ethylenically unsaturated bond is preferable.
Examples of the group having an ethylenically unsaturated bond include a vinyl group, a (meth) allyl group, a group represented by the following formula (III), and the like, and a group represented by the following formula (III) is preferable.
Figure JPOXMLDOC01-appb-C000008
Figure JPOXMLDOC01-appb-C000008
 式(III)において、R200は、水素原子又はメチル基を表し、水素原子が好ましい。
 式(III)において、*は他の構造との結合部位を表す。
 式(III)において、R201は、炭素数2~12のアルキレン基、-CHCH(OH)CH-又はポリアルキレンオキシ基を表す。
 好適なR201の例は、エチレン基、プロピレン基、トリメチレン基、テトラメチレン基、1,2-ブタンジイル基、1,3-ブタンジイル基、ペンタメチレン基、ヘキサメチレン基、オクタメチレン基、ドデカメチレン基、-CHCH(OH)CH-、ポリアルキレンオキシ基が挙げられ、エチレン基、プロピレン基、トリメチレン基、-CHCH(OH)CH-、ポリアルキレンオキシ基がより好ましく、ポリアルキレンオキシ基が更に好ましい。
 本発明において、ポリアルキレンオキシ基とは、アルキレンオキシ基が2以上直接結合した基をいう。ポリアルキレンオキシ基に含まれる複数のアルキレンオキシ基におけるアルキレン基は、それぞれ同一であっても異なっていてもよい。
 ポリアルキレンオキシ基が、アルキレン基が異なる複数種のアルキレンオキシ基を含む場合、ポリアルキレンオキシ基におけるアルキレンオキシ基の配列は、ランダムな配列であってもよいし、ブロックを有する配列であってもよいし、交互等のパターンを有する配列であってもよい。
 上記アルキレン基の炭素数(アルキレン基が置換基を有する場合、置換基の炭素数を含む)は、2以上であることが好ましく、2~10であることがより好ましく、2~6であることがより好ましく、2~5であることが更に好ましく、2~4であることが一層好ましく、2又は3であることが特に好ましく、2であることが最も好ましい。
 また、上記アルキレン基は、置換基を有していてもよい。好ましい置換基としては、アルキル基、アリール基、ハロゲン原子等が挙げられる。
 また、ポリアルキレンオキシ基に含まれるアルキレンオキシ基の数(ポリアルキレンオキシ基の繰り返し数)は、2~20が好ましく、2~10がより好ましく、2~6が更に好ましい。
 ポリアルキレンオキシ基としては、溶剤溶解性及び耐溶剤性の観点からは、ポリエチレンオキシ基、ポリプロピレンオキシ基、ポリトリメチレンオキシ基、ポリテトラメチレンオキシ基、又は、複数のエチレンオキシ基と複数のプロピレンオキシ基とが結合した基が好ましく、ポリエチレンオキシ基又はポリプロピレンオキシ基がより好ましく、ポリエチレンオキシ基が更に好ましい。上記複数のエチレンオキシ基と複数のプロピレンオキシ基とが結合した基において、エチレンオキシ基とプロピレンオキシ基とはランダムに配列していてもよいし、ブロックを形成して配列していてもよいし、交互等のパターン状に配列していてもよい。これらの基におけるエチレンオキシ基等の繰り返し数の好ましい態様は上述の通りである。
In formula (III), R200 represents a hydrogen atom or a methyl group, and a hydrogen atom is preferable.
In formula (III), * represents a binding site with another structure.
In formula (III), R 201 represents an alkylene group having 2 to 12 carbon atoms, -CH 2 CH (OH) CH 2- or a polyalkyleneoxy group.
Examples of suitable R 201 are ethylene group, propylene group, trimethylene group, tetramethylene group, 1,2-butandyl group, 1,3-butandyl group, pentamethylene group, hexamethylene group, octamethylene group, dodecamethylene group. , -CH 2 CH (OH) CH 2- , polyalkyleneoxy group, and ethylene group, propylene group, trimethylene group, -CH 2 CH (OH) CH 2- , polyalkyleneoxy group are more preferable, and polyalkylene group is more preferable. An oxy group is more preferred.
In the present invention, the polyalkyleneoxy group refers to a group in which two or more alkyleneoxy groups are directly bonded. The alkylene groups in the plurality of alkyleneoxy groups contained in the polyalkyleneoxy group may be the same or different.
When the polyalkyleneoxy group contains a plurality of types of alkyleneoxy groups having different alkylene groups, the arrangement of the alkyleneoxy groups in the polyalkyleneoxy group may be a random sequence or a sequence having a block. It may be an array having a pattern such as alternating.
The carbon number of the alkylene group (including the carbon number of the substituent when the alkylene group has a substituent) is preferably 2 or more, more preferably 2 to 10, and 2 to 6. Is more preferable, 2 to 5 is more preferable, 2 to 4 is more preferable, 2 or 3 is particularly preferable, and 2 is most preferable.
Moreover, the said alkylene group may have a substituent. Preferred substituents include alkyl groups, aryl groups, halogen atoms and the like.
The number of alkyleneoxy groups contained in the polyalkyleneoxy group (the number of repetitions of the polyalkyleneoxy group) is preferably 2 to 20, more preferably 2 to 10, and even more preferably 2 to 6.
The polyalkyleneoxy group includes a polyethyleneoxy group, a polypropyleneoxy group, a polytrimethyleneoxy group, a polytetramethyleneoxy group, or a plurality of ethyleneoxy groups and a plurality of propylenes from the viewpoint of solvent solubility and solvent resistance. A group in which an oxy group is bonded is preferable, a polyethyleneoxy group or a polypropyleneoxy group is more preferable, and a polyethyleneoxy group is further preferable. In the group in which the plurality of ethyleneoxy groups and the plurality of propyleneoxy groups are bonded, the ethyleneoxy groups and the propyleneoxy groups may be randomly arranged or may be arranged by forming a block. , Alternate or the like may be arranged in a pattern. The preferred embodiment of the number of repetitions of the ethyleneoxy group and the like in these groups is as described above.
 R113及びR114は、それぞれ独立に、水素原子又は1価の有機基である。1価の有機基としては、アリール基を構成する炭素の1つ、2つ又は3つに、好ましくは1つに酸性基を結合している、芳香族基及びアラルキル基などが挙げられる。具体的には、酸性基を有する炭素数6~20の芳香族基、酸性基を有する炭素数7~25のアラルキル基が挙げられる。より具体的には、酸性基を有するフェニル基及び酸性基を有するベンジル基が挙げられる。酸性基は、OH基が好ましい。
 R113又はR114が、水素原子、2-ヒドロキシベンジル、3-ヒドロキシベンジル及び4-ヒドロキシベンジルであることもより好ましい。
R 113 and R 114 are independently hydrogen atoms or monovalent organic groups. Examples of the monovalent organic group include an aromatic group and an aralkyl group in which an acidic group is bonded to one, two or three carbons constituting the aryl group, preferably one. Specific examples thereof include an aromatic group having an acidic group having 6 to 20 carbon atoms and an aralkyl group having an acidic group having 7 to 25 carbon atoms. More specifically, a phenyl group having an acidic group and a benzyl group having an acidic group can be mentioned. The acidic group is preferably an OH group.
It is also more preferable that R 113 or R 114 is a hydrogen atom, 2-hydroxybenzyl, 3-hydroxybenzyl and 4-hydroxybenzyl.
 有機溶剤への溶解度の観点からは、R113又はR114は、1価の有機基であることが好ましい。1価の有機基としては、直鎖又は分岐のアルキル基、環状アルキル基、芳香族基を含むことが好ましく、芳香族基で置換されたアルキル基がより好ましい。
 アルキル基の炭素数は1~30が好ましい。アルキル基は直鎖、分岐、環状のいずれであってもよい。直鎖又は分岐のアルキル基としては、例えば、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、ヘプチル基、オクチル基、ノニル基、デシル基、ドデシル基、テトラデシル基、オクタデシル基、イソプロピル基、イソブチル基、sec-ブチル基、t-ブチル基、1-エチルペンチル基、2-エチルヘキシル基2-(2-(2-メトキシエトキシ)エトキシ)エトキシ基、2-(2-(2-エトキシエトキシ)エトキシ)エトキシ)エトキシ基、2-(2-(2-(2-メトキシエトキシ)エトキシ)エトキシ)エトキシ基、及び2-(2-(2-(2-エトキシエトキシ)エトキシ)エトキシ)エトキシ基が挙げられる。環状のアルキル基は、単環の環状のアルキル基であってもよく、多環の環状のアルキル基であってもよい。単環の環状のアルキル基としては、例えば、シクロプロピル基、シクロブチル基、シクロペンチル基、シクロヘキシル基、シクロヘプチル基及びシクロオクチル基が挙げられる。多環の環状のアルキル基としては、例えば、アダマンチル基、ノルボルニル基、ボルニル基、カンフェニル基、デカヒドロナフチル基、トリシクロデカニル基、テトラシクロデカニル基、カンホロイル基、ジシクロヘキシル基及びピネニル基が挙げられる。中でも、高感度化との両立の観点から、シクロヘキシル基が最も好ましい。また、芳香族基で置換されたアルキル基としては、後述する芳香族基で置換された直鎖アルキル基が好ましい。
 芳香族基としては、具体的には、置換又は無置換のベンゼン環、ナフタレン環、ペンタレン環、インデン環、アズレン環、ヘプタレン環、インダセン環、ペリレン環、ペンタセン環、アセナフテン環、フェナントレン環、アントラセン環、ナフタセン環、クリセン環、トリフェニレン環、フルオレン環、ビフェニル環、ピロール環、フラン環、チオフェン環、イミダゾール環、オキサゾール環、チアゾール環、ピリジン環、ピラジン環、ピリミジン環、ピリダジン環、インドリジン環、インドール環、ベンゾフラン環、ベンゾチオフェン環、イソベンゾフラン環、キノリジン環、キノリン環、フタラジン環、ナフチリジン環、キノキサリン環、キノキサゾリン環、イソキノリン環、カルバゾール環、フェナントリジン環、アクリジン環、フェナントロリン環、チアントレン環、クロメン環、キサンテン環、フェノキサチイン環、フェノチアジン環又はフェナジン環である。ベンゼン環が最も好ましい。
From the viewpoint of solubility in an organic solvent, R 113 or R 114 is preferably a monovalent organic group. The monovalent organic group preferably contains a linear or branched alkyl group, a cyclic alkyl group, or an aromatic group, and an alkyl group substituted with an aromatic group is more preferable.
The alkyl group preferably has 1 to 30 carbon atoms. The alkyl group may be linear, branched or cyclic. Examples of the linear or branched alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, a dodecyl group, a tetradecyl group and an octadecyl group. , Isobutyl group, isobutyl group, sec-butyl group, t-butyl group, 1-ethylpentyl group, 2-ethylhexyl group 2- (2- (2-methoxyethoxy) ethoxy) ethoxy group, 2- (2- (2) -Ethoxyethoxy) ethoxy) ethoxy) ethoxy group, 2- (2- (2- (2-methoxyethoxy) ethoxy) ethoxy) ethoxy group, and 2- (2- (2- (2-ethoxyethoxy) ethoxy) ethoxy) ethoxy ) Ethoxy group is mentioned. The cyclic alkyl group may be a monocyclic cyclic alkyl group or a polycyclic cyclic alkyl group. Examples of the monocyclic cyclic alkyl group include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cycloheptyl group and a cyclooctyl group. Examples of the polycyclic cyclic alkyl group include an adamantyl group, a norbornyl group, a boronyl group, a phenyl group, a decahydronaphthyl group, a tricyclodecanyl group, a tetracyclodecanyl group, a camphoroyl group, a dicyclohexyl group and a pinenyl group. Can be mentioned. Of these, the cyclohexyl group is most preferable from the viewpoint of achieving both high sensitivity. Further, as the alkyl group substituted with an aromatic group, a linear alkyl group substituted with an aromatic group described later is preferable.
Specific examples of the aromatic group include substituted or unsubstituted benzene ring, naphthalene ring, pentalene ring, inden ring, azulene ring, heptalene ring, indacene ring, perylene ring, pentacene ring, acenaphthene ring, phenanthrene ring, and anthracene. Ring, naphthalene ring, chrysene ring, triphenylene ring, fluorene ring, biphenyl ring, pyrrole ring, furan ring, thiophene ring, imidazole ring, oxazole ring, thiazole ring, pyridine ring, pyrazine ring, pyrimidine ring, pyridazine ring, indridin ring. , Indol ring, benzofuran ring, benzothiophene ring, isobenzofuran ring, quinolidine ring, quinoline ring, phthalazine ring, naphthylidine ring, quinoxalin ring, quinoxazoline ring, isoquinoline ring, carbazole ring, phenanthridine ring, acrydin ring, phenanthrolin ring, It is a thianthracene ring, a chromene ring, a xanthene ring, a phenoxatiin ring, a phenothiazine ring or a phenazine ring. The benzene ring is most preferred.
 式(2)において、R113が水素原子である場合、又は、R114が水素原子である場合、ポリイミド前駆体はエチレン性不飽和結合を有する3級アミン化合物と対塩を形成していてもよい。このようなエチレン性不飽和結合を有する3級アミン化合物の例としては、N,N-ジメチルアミノプロピルメタクリレートが挙げられる。 In the formula (2), when R 113 is a hydrogen atom or R 114 is a hydrogen atom, even if the polyimide precursor forms a salt with a tertiary amine compound having an ethylenically unsaturated bond. good. Examples of the tertiary amine compound having such an ethylenically unsaturated bond include N, N-dimethylaminopropyl methacrylate.
 R113及びR114の少なくとも一方が、酸分解性基等の極性変換基であってもよい。酸分解性基としては、酸の作用で分解して、フェノール性ヒドロキシ基、カルボキシ基等のアルカリ可溶性基を生じるものであれば特に限定されないが、アセタール基、ケタール基、シリル基、シリルエーテル基、第三級アルキルエステル基等が好ましく、露光感度の観点からは、アセタール基がより好ましい。
 酸分解性基の具体例としては、tert-ブトキシカルボニル基、イソプロポキシカルボニル基、テトラヒドロピラニル基、テトラヒドロフラニル基、エトキシエチル基、メトキシエチル基、エトキシメチル基、トリメチルシリル基、tert-ブトキシカルボニルメチル基、トリメチルシリルエーテル基などが挙げられる。露光感度の観点からは、エトキシエチル基、又は、テトラヒドロフラニル基が好ましい。
At least one of R 113 and R 114 may be a polarity converting group such as an acid degradable group. The acid-degradable group is not particularly limited as long as it is decomposed by the action of an acid to produce an alkali-soluble group such as a phenolic hydroxy group or a carboxy group, but is not particularly limited, but is an acetal group, a ketal group, a silyl group, or a silyl ether group. , A tertiary alkyl ester group or the like is preferable, and an acetal group is more preferable from the viewpoint of exposure sensitivity.
Specific examples of the acid-degradable group include tert-butoxycarbonyl group, isopropoxycarbonyl group, tetrahydropyranyl group, tetrahydrofuranyl group, ethoxyethyl group, methoxyethyl group, ethoxymethyl group, trimethylsilyl group and tert-butoxycarbonylmethyl. Examples include a group, a trimethylsilyl ether group and the like. From the viewpoint of exposure sensitivity, an ethoxyethyl group or a tetrahydrofuranyl group is preferable.
 また、ポリイミド前駆体は、構造単位中にフッ素原子を有することも好ましい。ポリイミド前駆体中のフッ素原子含有量は、10質量%以上が好ましく、また、20質量%以下が好ましい。 It is also preferable that the polyimide precursor has a fluorine atom in the structural unit. The fluorine atom content in the polyimide precursor is preferably 10% by mass or more, and preferably 20% by mass or less.
 また、基板との密着性を向上させる目的で、ポリイミド前駆体は、シロキサン構造を有する脂肪族基と共重合していてもよい。具体的には、ジアミン成分として、ビス(3-アミノプロピル)テトラメチルジシロキサン、ビス(p-アミノフェニル)オクタメチルペンタシロキサンなどを用いる態様が挙げられる。 Further, for the purpose of improving the adhesion to the substrate, the polyimide precursor may be copolymerized with an aliphatic group having a siloxane structure. Specifically, as the diamine component, an embodiment in which bis (3-aminopropyl) tetramethyldisiloxane, bis (p-aminophenyl) octamethylpentasiloxane, or the like is used can be mentioned.
 式(2)で表される繰り返し単位は、式(2-A)で表される繰り返し単位であることが好ましい。すなわち、本発明で用いるポリイミド前駆体等の少なくとも1種が、式(2-A)で表される繰り返し単位を有する前駆体であることが好ましい。このような構造とすることにより、露光ラチチュードの幅をより広げることが可能になる。
式(2-A)
Figure JPOXMLDOC01-appb-C000009

 式(2-A)中、A及びAは、酸素原子を表し、R111及びR112は、それぞれ独立に、2価の有機基を表し、R113及びR114は、それぞれ独立に、水素原子又は1価の有機基を表し、R113及びR114の少なくとも一方は、重合性基を含む基であり、両方が重合性基であることが好ましい。
The repeating unit represented by the formula (2) is preferably the repeating unit represented by the formula (2-A). That is, it is preferable that at least one of the polyimide precursors used in the present invention is a precursor having a repeating unit represented by the formula (2-A). With such a structure, the width of the exposure latitude can be further widened.
Equation (2-A)
Figure JPOXMLDOC01-appb-C000009

In formula (2-A), A 1 and A 2 represent oxygen atoms, R 111 and R 112 each independently represent a divalent organic group, and R 113 and R 114 each independently. Representing a hydrogen atom or a monovalent organic group , at least one of R 113 and R 114 is a group containing a polymerizable group, and it is preferable that both are polymerizable groups.
 A、A、R111、R113及びR114は、それぞれ独立に、式(2)におけるA、A、R111、R113及びR114と同義であり、好ましい範囲も同様である。
112は、式(5)におけるR112と同義であり、好ましい範囲も同様である。
A 1, A 2, R 111 , R 113 and R 114 each independently have the same meaning as A 1, A 2, R 111 , R 113 and R 114 in formula (2), and preferred ranges are also the same ..
R 112 has the same meaning as R 112 in formula (5), and preferred ranges are also the same.
 ポリイミド前駆体は、式(2)で表される繰り返し構造単位を1種含んでいてもよいが、2種以上で含んでいてもよい。また、式(2)で表される繰り返し単位の構造異性体を含んでいてもよい。また、ポリイミド前駆体は、上記式(2)の繰り返し単位のほかに、他の種類の繰り返し構造単位をも含んでよいことはいうまでもない。 The polyimide precursor may contain one type of repeating structural unit represented by the formula (2), but may contain two or more types. Further, it may contain a structural isomer of a repeating unit represented by the formula (2). Needless to say, the polyimide precursor may contain other types of repeating structural units in addition to the repeating unit of the above formula (2).
 ポリイミド前駆体は、環状イミド構造及び環状イソイミド構造の少なくとも一方を有する繰返し単位として、下記式(2-1)~式(2ー6)のいずれかで表される繰返し単位よりなる群から選ばれた少なくとも1種の繰返し単位を含むことが好ましく、下記式(2-1)で表される繰返し単位、下記式(2-2)で表される繰返し単位、及び、下記式(2-3)で表される繰返し単位よりなる群から選ばれた少なくとも1種の繰返し単位を含むことがより好ましい。
Figure JPOXMLDOC01-appb-C000010

 式(2-1)~式(2-6)中、R111、R113、R114、R115、A及びAはそれぞれ、上述の式(2)中のR111、R113、R114、R115、A及びAと同義であり、好ましい態様も同様である。
The polyimide precursor is selected from the group consisting of repeating units represented by any of the following formulas (2-1) to (2-6) as a repeating unit having at least one of a cyclic imide structure and a cyclic isoimide structure. It is preferable to include at least one repeating unit, and the repeating unit represented by the following formula (2-1), the repeating unit represented by the following formula (2-2), and the following formula (2-3). It is more preferable to include at least one repeating unit selected from the group consisting of repeating units represented by.
Figure JPOXMLDOC01-appb-C000010

In formulas (2-1) to (2-6), R 111 , R 113 , R 114 , R 115 , A 1 and A 2 are R 111 , R 113 and R in the above formula (2), respectively. It is synonymous with 114 , R 115 , A 1 and A 2 , and the preferred embodiment is also the same.
 式(2-1)~式(2-6)のいずれかで表される繰返し単位の合計含有量は、ポリイミド前駆体における環状イミド構造及び環状イソイミド構造の合計含有量が上述の範囲内となる量とすればよい。 The total content of the repeating units represented by any of the formulas (2-1) to (2-6) is such that the total content of the cyclic imide structure and the cyclic isoimide structure in the polyimide precursor is within the above range. It may be the amount.
 本発明におけるポリイミド前駆体の一実施形態として、式(2)で表される繰り返し単位、及び、式(2-1)~式(2-6)のいずれかで表される繰返し単位の合計含有量が、全繰り返し単位の50モル%以上である態様が挙げられる。上記合計含有量は、70モル%以上であることがより好ましく、90モル%以上であることが更に好ましく、90モル%超であることが特に好ましい。上記合計含有量の上限は、特に限定されず、末端を除くポリイミド前駆体における全ての繰返し単位が、式(2)で表される繰り返し単位、及び、式(2-1)~式(2-6)のいずれかで表される繰返し単位のいずれかであってもよい。 As one embodiment of the polyimide precursor in the present invention, the total content of the repeating unit represented by the formula (2) and the repeating unit represented by any of the formulas (2-1) to (2-6). An embodiment in which the amount is 50 mol% or more of all repeating units can be mentioned. The total content is more preferably 70 mol% or more, further preferably 90 mol% or more, and particularly preferably more than 90 mol%. The upper limit of the total content is not particularly limited, and all the repeating units in the polyimide precursor except the terminal are the repeating units represented by the formula (2) and the formulas (2-1) to (2-). It may be any of the repeating units represented by any of 6).
 ポリイミド前駆体の重量平均分子量(Mw)は、好ましくは18,000~30,000であり、より好ましくは20,000~27,000であり、更に好ましくは22,000~25,000である。また、数平均分子量(Mn)は、好ましくは7,200~14,000であり、より好ましくは8,000~12,000であり、更に好ましくは9,200~11,200である。
 上記ポリイミド前駆体の分子量の分散度は、2.5以上が好ましく、2.7以上がより好ましく、2.8以上であることが更に好ましい。ポリイミド前駆体の分子量の分散度の上限値は特に定めるものではないが、例えば、4.5以下が好ましく、4.0以下がより好ましく、3.8以下が更に好ましく、3.2以下が一層好ましく、3.1以下がより一層好ましく、3.0以下が更に一層好ましく、2.95以下が特に好ましい。
 本明細書において、分子量の分散度とは、重量平均分子量/数平均分子量により算出される値である。
The weight average molecular weight (Mw) of the polyimide precursor is preferably 18,000 to 30,000, more preferably 20,000 to 27,000, and even more preferably 22,000 to 25,000. The number average molecular weight (Mn) is preferably 7,200 to 14,000, more preferably 8,000 to 12,000, and even more preferably 9,200 to 11,200.
The degree of dispersion of the molecular weight of the polyimide precursor is preferably 2.5 or more, more preferably 2.7 or more, and further preferably 2.8 or more. The upper limit of the dispersity of the molecular weight of the polyimide precursor is not particularly determined, but for example, 4.5 or less is preferable, 4.0 or less is more preferable, 3.8 or less is further preferable, and 3.2 or less is further preferable. Preferably, 3.1 or less is even more preferable, 3.0 or less is even more preferable, and 2.95 or less is particularly preferable.
In the present specification, the degree of molecular weight dispersion is a value calculated by weight average molecular weight / number average molecular weight.
〔ポリベンゾオキサゾール前駆体〕
 本発明で用いるポリベンゾオキサゾール前駆体は、その構造等について特に定めるものではないが、好ましくは下記式(3)で表される繰り返し単位を含む。
Figure JPOXMLDOC01-appb-C000011

 式(3)中、R121は、2価の有機基を表し、R122は、4価の有機基を表し、R123及びR124は、それぞれ独立に、水素原子又は1価の有機基を表す。
[Polybenzoxazole precursor]
The polybenzoxazole precursor used in the present invention is not particularly defined for its structure and the like, but preferably contains a repeating unit represented by the following formula (3).
Figure JPOXMLDOC01-appb-C000011

In formula (3), R 121 represents a divalent organic group, R 122 represents a tetravalent organic group, and R 123 and R 124 independently represent a hydrogen atom or a monovalent organic group. show.
 式(3)において、R123及びR124は、それぞれ、式(2)におけるR113と同義であり、好ましい範囲も同様である。すなわち、少なくとも一方は、重合性基であることが好ましい。
 式(3)において、R121は、2価の有機基を表す。2価の有機基としては、脂肪族基及び芳香族基の少なくとも一方を含む基が好ましい。脂肪族基としては、直鎖の脂肪族基が好ましい。R121は、ジカルボン酸残基が好ましい。ジカルボン酸残基は、1種のみ用いてもよいし、2種以上用いてもよい。
In the formula (3), R 123 and R 124 are synonymous with R 113 in the formula (2), respectively, and the preferable range is also the same. That is, at least one is preferably a polymerizable group.
In formula (3), R 121 represents a divalent organic group. As the divalent organic group, a group containing at least one of an aliphatic group and an aromatic group is preferable. As the aliphatic group, a linear aliphatic group is preferable. R 121 is preferably a dicarboxylic acid residue. Only one type of dicarboxylic acid residue may be used, or two or more types may be used.
 ジカルボン酸残基としては、脂肪族基を含むジカルボン酸及び芳香族基を含むジカルボン酸残基が好ましく、芳香族基を含むジカルボン酸残基がより好ましい。
 脂肪族基を含むジカルボン酸としては、直鎖又は分岐(好ましくは直鎖)の脂肪族基を含むジカルボン酸が好ましく、直鎖又は分岐(好ましくは直鎖)の脂肪族基と2つの-COOHからなるジカルボン酸がより好ましい。直鎖又は分岐(好ましくは直鎖)の脂肪族基の炭素数は、2~30であることが好ましく、2~25であることがより好ましく、3~20であることが更に好ましく、4~15であることが一層好ましく、5~10であることが特に好ましい。直鎖の脂肪族基はアルキレン基であることが好ましい。
 直鎖の脂肪族基を含むジカルボン酸としては、マロン酸、ジメチルマロン酸、エチルマロン酸、イソプロピルマロン酸、ジ-n-ブチルマロン酸、スクシン酸、テトラフルオロスクシン酸、メチルスクシン酸、2,2-ジメチルスクシン酸、2,3-ジメチルスクシン酸、ジメチルメチルスクシン酸、グルタル酸、ヘキサフルオログルタル酸、2-メチルグルタル酸、3-メチルグルタル酸、2,2-ジメチルグルタル酸、3,3-ジメチルグルタル酸、3-エチル-3-メチルグルタル酸、アジピン酸、オクタフルオロアジピン酸、3-メチルアジピン酸、ピメリン酸、2,2,6,6-テトラメチルピメリン酸、スベリン酸、ドデカフルオロスベリン酸、アゼライン酸、セバシン酸、ヘキサデカフルオロセバシン酸、1,9-ノナン二酸、ドデカン二酸、トリデカン二酸、テトラデカン二酸、ペンタデカン二酸、ヘキサデカン二酸、ヘプタデカン二酸、オクタデカン二酸、ノナデカン二酸、エイコサン二酸、ヘンエイコサン二酸、ドコサン二酸、トリコサン二酸、テトラコサン二酸、ペンタコサン二酸、ヘキサコサン二酸、ヘプタコサン二酸、オクタコサン二酸、ノナコサン二酸、トリアコンタン二酸、ヘントリアコンタン二酸、ドトリアコンタン二酸、ジグリコール酸、更に下記式で表されるジカルボン酸等が挙げられる。
As the dicarboxylic acid residue, a dicarboxylic acid containing an aliphatic group and a dicarboxylic acid residue containing an aromatic group are preferable, and a dicarboxylic acid residue containing an aromatic group is more preferable.
As the dicarboxylic acid containing an aliphatic group, a dicarboxylic acid containing a linear or branched (preferably straight chain) aliphatic group is preferable, and a linear or branched (preferably straight chain) aliphatic group and two -COOH are preferable. A dicarboxylic acid composed of is more preferable. The number of carbon atoms of the linear or branched (preferably linear) aliphatic group is preferably 2 to 30, more preferably 2 to 25, further preferably 3 to 20, and 4 to 20. It is more preferably 15, and particularly preferably 5 to 10. The linear aliphatic group is preferably an alkylene group.
Examples of the dicarboxylic acid containing a linear aliphatic group include malonic acid, dimethylmalonic acid, ethylmalonic acid, isopropylmalonic acid, di-n-butylmalonic acid, succinic acid, tetrafluorosuccinic acid, methylsuccinic acid, 2, 2-Dimethylsuccinic acid, 2,3-dimethylsuccinic acid, dimethylmethylsuccinic acid, glutaric acid, hexafluoroglutaric acid, 2-methylglutaric acid, 3-methylglutaric acid, 2,2-dimethylglutaric acid, 3,3-Dimethylglutaric acid, 3-ethyl-3-methylglutaric acid, adipic acid, octafluoroadiponic acid, 3-methyladiponic acid, pimellinic acid, 2,2,6,6-tetramethylpimelic acid, suberin Acid, dodecafluorosveric acid, azelaic acid, sebacic acid, hexadecafluorosevacinic acid, 1,9-nonanedioic acid, dodecanedioic acid, tridecanedioic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, heptadecanedioic acid , Octadecandioic acid, Nonadecandioic acid, Eikosandioic acid, Heneikosandioic acid, Docosandioic acid, Tricosandioic acid, Tetracosandioic acid, Pentacosandioic acid, Hexacosanedioic acid, Heptakosandioic acid, Octakosandioic acid, Nonakosandioic acid, Tria Examples thereof include contandiic acid, gentria-contanic acid, dotria-contandiic acid, diglycolic acid, and dicarboxylic acid represented by the following formula.
Figure JPOXMLDOC01-appb-C000012

(式中、Zは炭素数1~6の炭化水素基であり、nは1~6の整数である。)
Figure JPOXMLDOC01-appb-C000012

(In the formula, Z is a hydrocarbon group having 1 to 6 carbon atoms, and n is an integer of 1 to 6).
 芳香族基を含むジカルボン酸としては、以下の芳香族基を有するジカルボン酸が好ましく、以下の芳香族基と2つの-COOHのみからなるジカルボン酸がより好ましい。 As the dicarboxylic acid containing an aromatic group, a dicarboxylic acid having the following aromatic groups is preferable, and a dicarboxylic acid consisting of only the following aromatic groups and two -COOH is more preferable.
Figure JPOXMLDOC01-appb-C000013

 式中、Aは-CH-、-O-、-S-、-SO-、-CO-、-NHCO-、-C(CF-、及び、-C(CH-からなる群から選択される2価の基を表し、*はそれぞれ独立に、他の構造との結合部位を表す。
Figure JPOXMLDOC01-appb-C000013

In the formula, A is -CH 2- , -O-, -S-, -SO 2- , -CO-, -NHCO-, -C (CF 3 ) 2- , and -C (CH 3 ) 2- Represents a divalent group selected from the group consisting of, and each independently represents a binding site with another structure.
 芳香族基を含むジカルボン酸の具体例としては、4,4’-カルボニル二安息香酸及び4,4’-ジカルボキシジフェニルエーテル、テレフタル酸が挙げられる。 Specific examples of the dicarboxylic acid containing an aromatic group include 4,4'-carbonyldibenzoic acid, 4,4'-dicarboxydiphenyl ether, and terephthalic acid.
 また、R121はベンゾオキサゾール構造を含むジカルボン酸又はジカルボン酸ハライドに由来する構造であってもよい。R121を上記構造とすることにより、ベンゾオキサゾール前駆体にベンゾオキサゾール構造が導入される。
 上記構造としては、例えば、下記構造が挙げられる。下記構造中、*はそれぞれ独立に、他の構造との結合部位を表す。
Figure JPOXMLDOC01-appb-C000014
Further, R 121 may have a structure derived from a dicarboxylic acid or a dicarboxylic acid halide containing a benzoxazole structure. By making R 121 have the above structure, a benzoxazole structure is introduced into the benzoxazole precursor.
Examples of the above structure include the following structures. In the following structures, * independently represents a binding site with another structure.
Figure JPOXMLDOC01-appb-C000014
 式(3)において、R122は、4価の有機基を表す。4価の有機基としては、上記式(2)におけるR115と同義であり、好ましい範囲も同様である。
 R122は、また、ビスアミノフェノール誘導体由来の基であることが好ましく、ビスアミノフェノール誘導体由来の基としては、例えば、3,3’-ジアミノ-4,4’-ジヒドロキシビフェニル、4,4’-ジアミノ-3,3’-ジヒドロキシビフェニル、3,3’-ジアミノ-4,4’-ジヒドロキシジフェニルスルホン、4,4’-ジアミノ-3,3’-ジヒドロキシジフェニルスルホン、ビス-(3-アミノ-4-ヒドロキシフェニル)メタン、2,2-ビス(3-アミノ-4-ヒドロキシフェニル)プロパン、2,2-ビス-(3-アミノ-4-ヒドロキシフェニル)ヘキサフルオロプロパン、2,2-ビス-(4-アミノ-3-ヒドロキシフェニル)ヘキサフルオロプロパン、ビス-(4-アミノ-3-ヒドロキシフェニル)メタン、2,2-ビス-(4-アミノ-3-ヒドロキシフェニル)プロパン、4,4’-ジアミノ-3,3’-ジヒドロキシベンゾフェノン、3,3’-ジアミノ-4,4’-ジヒドロキシベンゾフェノン、4,4’-ジアミノ-3,3’-ジヒドロキシジフェニルエーテル、3,3’-ジアミノ-4,4’-ジヒドロキシジフェニルエーテル、1,4-ジアミノ-2,5-ジヒドロキシベンゼン、1,3-ジアミノ-2,4-ジヒドロキシベンゼン、1,3-ジアミノ-4,6-ジヒドロキシベンゼンなどが挙げられる。これらのビスアミノフェノールは、単独にて、あるいは混合して使用してもよい。
In formula (3), R 122 represents a tetravalent organic group. The tetravalent organic group has the same meaning as R 115 in the above formula (2), and the preferable range is also the same.
R 122 is also preferably a group derived from a bisaminophenol derivative, and examples of the group derived from the bisaminophenol derivative include 3,3'-diamino-4,4'-dihydroxybiphenyl, 4,4'. -Diamino-3,3'-dihydroxybiphenyl, 3,3'-diamino-4,4'-dihydroxydiphenylsulfone, 4,4'-diamino-3,3'-dihydroxydiphenylsulfone, bis- (3-amino-) 4-Hydroxyphenyl) methane, 2,2-bis (3-amino-4-hydroxyphenyl) propane, 2,2-bis- (3-amino-4-hydroxyphenyl) hexafluoropropane, 2,2-bis- (4-Amino-3-hydroxyphenyl) hexafluoropropane, bis- (4-amino-3-hydroxyphenyl) methane, 2,2-bis- (4-amino-3-hydroxyphenyl) propane, 4,4'-Diamino-3,3'-dihydroxybenzophenone,3,3'-diamino-4,4'-dihydroxybenzophenone,4,4'-diamino-3,3'-dihydroxydiphenyl ether, 3,3'-diamino-4, Examples thereof include 4'-dihydroxydiphenyl ether, 1,4-diamino-2,5-dihydroxybenzene, 1,3-diamino-2,4-dihydroxybenzene and 1,3-diamino-4,6-dihydroxybenzene. These bis-aminophenols may be used alone or in combination.
 ビスアミノフェノール誘導体のうち、下記芳香族基を有するビスアミノフェノール誘導体が好ましい。 Among the bisaminophenol derivatives, bisaminophenol derivatives having the following aromatic groups are preferable.
Figure JPOXMLDOC01-appb-C000015

 式中、Xは、-O-、-S-、-C(CF-、-CH-、-SO-、-NHCO-を表し、*及び#はそれぞれ、他の構造との結合部位を表す。Rは水素原子又は1価の置換基を表し、水素原子又は炭化水素基が好ましく、水素原子又はアルキル基がより好ましい。また、R122は、上記式により表される構造であることも好ましい。R122が、上記式により表される構造である場合、計4つの*及び#のうち、いずれか2つが式(3)中のR122が結合する窒素原子との結合部位であり、かつ、別の2つが式(3)中のR122が結合する酸素原子との結合部位であることが好ましく、2つの*が式(3)中のR122が結合する酸素原子との結合部位であり、かつ、2つの#が式(3)中のR122が結合する窒素原子との結合部位であるか、又は、2つの*が式(3)中のR122が結合する窒素原子との結合部位であり、かつ、2つの#が式(3)中のR122が結合する酸素原子との結合部位であることがより好ましく、2つの*が式(3)中のR122が結合する酸素原子との結合部位であり、かつ、2つの#が式(3)中のR122が結合する窒素原子との結合部位であることが更に好ましい。
Figure JPOXMLDOC01-appb-C000015

In the formula, X 1 represents -O-, -S-, -C (CF 3 ) 2- , -CH 2- , -SO 2- , -NHCO-, and * and # represent other structures, respectively. Represents the binding site of. R represents a hydrogen atom or a monovalent substituent, preferably a hydrogen atom or a hydrocarbon group, and more preferably a hydrogen atom or an alkyl group. Further, it is also preferable that R 122 has a structure represented by the above formula. When R 122 has a structure represented by the above formula, any two of the four * and # in total are the binding sites with the nitrogen atom to which R 122 in the formula (3) is bonded, and preferably R 122 in another 2 Exemplary ethynylphenylbiadamantane derivatives (3) is a binding site to the oxygen atom bonding, two * is a bond sites with an oxygen atom R 122 are attached in the formula (3) , And two # are the binding sites with the nitrogen atom to which R 122 in the formula (3) is bound, or two * are the binding sites with the nitrogen atom to which R 122 in the formula (3) is bound. It is more preferable that the site is a site and the two #s are the binding sites with the oxygen atom to which R 122 in the formula (3) is bonded, and the two * are the oxygen to which the R 122 in the formula (3) is bonded. It is more preferable that the binding site is a binding site with an atom and the two #s are the binding sites with a nitrogen atom to which R 122 in the formula (3) is bonded.
Figure JPOXMLDOC01-appb-C000016
Figure JPOXMLDOC01-appb-C000016
 式(A-s)中、Rは、水素原子、アルキレン、置換アルキレン、-O-、-S-、-SO-、-CO-、-NHCO-、単結合、又は下記式(A-sc)の群から選ばれる有機基である。Rは、水素原子、アルキル基、アルコキシ基、アシルオキシ基、環状のアルキル基のいずれかであり、同一でも異なってもよい。Rは水素原子、直鎖又は分岐のアルキル基、アルコキシ基、アシルオキシ基、環状のアルキル基のいずれかであり、同一でも異なってもよい。 In the formula (As), R 1 is a hydrogen atom, an alkylene, a substituted alkylene, -O-, -S-, -SO 2- , -CO-, -NHCO-, a single bond, or the following formula (A-). It is an organic group selected from the group of sc). R 2 is any one of a hydrogen atom, an alkyl group, an alkoxy group, an acyloxy group, and a cyclic alkyl group, and may be the same or different. R 3 is any of a hydrogen atom, a linear or branched alkyl group, an alkoxy group, an acyloxy group, and a cyclic alkyl group, and may be the same or different.
Figure JPOXMLDOC01-appb-C000017
(式(A-sc)中、*は上記式(A-s)で示されるビスアミノフェノール誘導体のアミノフェノール基の芳香環に結合することを示す。)
Figure JPOXMLDOC01-appb-C000017
(In the formula (A-sc), * indicates that it binds to the aromatic ring of the aminophenol group of the bis-aminophenol derivative represented by the above formula (As).)
 上記式(A-s)中、フェノール性ヒドロキシ基のオルソ位、すなわち、Rにも置換基を有することが、アミド結合のカルボニル炭素とヒドロキシ基の距離をより接近させると考えられ、低温で硬化した際に高環化率になる効果が更に高まる点で、特に好ましい。 In the above formula (A-s), the ortho position of the phenolic hydroxy groups, i.e., to have also substituent R 3 is believed to closer the distance of the carbonyl carbon and hydroxy group of the amide bond, at a low temperature It is particularly preferable in that the effect of increasing the cyclization rate when cured is further enhanced.
 また、上記式(A-s)中、Rがアルキル基であり、かつRがアルキル基であることが、i線に対する高透明性と低温で硬化した際に高環化率であるという効果を維持することができ、好ましい。 Further, in the above formula (As), it is said that the fact that R 2 is an alkyl group and R 3 is an alkyl group has high transparency to i-rays and a high cyclization rate when cured at a low temperature. The effect can be maintained, which is preferable.
 また、上記式(A-s)中、Rがアルキレン又は置換アルキレンであることが、更に好ましい。Rに係るアルキレン及び置換アルキレンの具体的な例としては、炭素数1~8の直鎖状又は分岐鎖状のアルキル基が挙げられるが、その中でも-CH-、-CH(CH)-、-C(CH-が、i線に対する高透明性と低温で硬化した際の高環化率であるという効果を維持しながら、溶剤に対して十分な溶解性を持つ、バランスに優れるポリベンゾオキサゾール前駆体を得ることができる点で、より好ましい。 Further, in the above formula (As), it is more preferable that R 1 is an alkylene or a substituted alkylene. Specific examples of the alkylene and the substituted alkylene according to R 1 include linear or branched alkyl groups having 1 to 8 carbon atoms, among which -CH 2- and -CH (CH 3 ). -, -C (CH 3 ) 2 -has sufficient solubility in a solvent while maintaining the effects of high transparency to i-rays and high cyclization rate when cured at low temperature. It is more preferable in that an excellent polybenzoxazole precursor can be obtained.
 上記式(A-s)で示されるビスアミノフェノール誘導体の製造方法としては、例えば、特開2013-256506号公報の段落番号0085~0094及び実施例1(段落番号0189~0190)を参考にすることができ、これらの内容は本明細書に組み込まれる。 As a method for producing the bis-aminophenol derivative represented by the above formula (As), for example, paragraph numbers 0085 to 0094 and Example 1 (paragraph numbers 0189 to 0190) of JP2013-256506A are referred to. These contents can be incorporated herein by reference.
 上記式(A-s)で示されるビスアミノフェノール誘導体の構造の具体例としては、特開2013-256506号公報の段落番号0070~0080に記載のものが挙げられ、これらの内容は本明細書に組み込まれる。もちろん、これらに限定されるものではないことは言うまでもない。 Specific examples of the structure of the bis-aminophenol derivative represented by the above formula (As) include those described in paragraphs 0070 to 0080 of JP2013-256506A, and these contents are described in the present specification. Incorporated in. Of course, it goes without saying that it is not limited to these.
 ポリベンゾオキサゾール前駆体は上記式(3)の繰り返し単位のほかに、他の種類の繰り返し構造単位も含んでよい。
 ポリベンゾオキサゾール前駆体は、ベンゾオキサゾール構造を有する繰返し単位として、下記式(3-1)で表される繰返し単位、下記式(3-2)で表される繰返し単位、及び、下記式(3-3)で表される繰返し単位よりなる群から選ばれた少なくとも1種の繰返し単位を含むことが好ましい。
Figure JPOXMLDOC01-appb-C000018

 式(3-1)~式(3-3)中、R121、R122、R123及びR124はそれぞれ、式(3)中のR121、R122、R123及びR124と同義であり、好ましい態様も同様である。
The polybenzoxazole precursor may contain other types of repeating structural units in addition to the repeating unit of the above formula (3).
The polybenzoxazole precursor is a repeating unit having a benzoxazole structure, which is a repeating unit represented by the following formula (3-1), a repeating unit represented by the following formula (3-2), and the following formula (3). It is preferable to include at least one repeating unit selected from the group consisting of the repeating units represented by -3).
Figure JPOXMLDOC01-appb-C000018

Equation (3-1) in to Formula (3-3), R 121, R 122, respectively R 123 and R 124 has the same meaning as R 121, R 122, R 123 and R 124 in formula (3) , The preferred embodiment is also the same.
 式(3-1)で表される繰返し単位、式(3-2)で表される繰返し単位、及び、式(3-3)で表される繰返し単位の含有量は、ポリベンゾオキサゾール前駆体におけるベンゾオキサゾール構造の含有量が上述の範囲内となる量とすればよい。 The content of the repeating unit represented by the formula (3-1), the repeating unit represented by the formula (3-2), and the repeating unit represented by the formula (3-3) is a polybenzoxazole precursor. The content of the benzoxazole structure in the above range may be set to the above range.
 また、ポリベンゾオキサゾール前駆体は、閉環に伴う反りの発生を抑制できる点で、下記式(SL)で表されるジアミン残基を他の種類の繰り返し構造単位として含むことが好ましい。 Further, the polybenzoxazole precursor preferably contains a diamine residue represented by the following formula (SL) as another type of repeating structural unit because it can suppress the occurrence of warpage due to ring closure.
Figure JPOXMLDOC01-appb-C000019

 式(SL)中、Zは、a構造とb構造を有し、R1sは、水素原子又は炭素数1~10の炭化水素基であり、R2sは炭素数1~10の炭化水素基であり、R3s、R4s、R5s、R6sのうち少なくとも1つは芳香族基で、残りは水素原子又は炭素数1~30の有機基で、それぞれ同一でも異なっていてもよい。a構造及びb構造の重合は、ブロック重合でもランダム重合でもよい。Z部分のモル%は、a構造は5~95モル%、b構造は95~5モル%であり、a+bは100モル%である。
Figure JPOXMLDOC01-appb-C000019

In formula (SL), Z has an a structure and a b structure, R 1s is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, and R 2s is a hydrocarbon group having 1 to 10 carbon atoms. Yes , at least one of R 3s, R 4s , R 5s , and R 6s is an aromatic group, and the rest are hydrogen atoms or organic groups having 1 to 30 carbon atoms, which may be the same or different. The polymerization of the a structure and the b structure may be block polymerization or random polymerization. The mol% of the Z portion is 5 to 95 mol% for the a structure, 95 to 5 mol% for the b structure, and 100 mol% for a + b.
 式(SL)において、好ましいZとしては、b構造中のR5s及びR6sがフェニル基であるものが挙げられる。また、式(SL)で示される構造の分子量は、400~4,000であることが好ましく、500~3,000がより好ましい。上記分子量を上記範囲とすることで、より効果的に、ポリベンゾオキサゾール前駆体の脱水閉環後の弾性率を下げ、反りを抑制できる効果と溶剤溶解性を向上させる効果を両立することができる。 In the formula (SL), preferred Z includes those in which R 5s and R 6s in the b structure are phenyl groups. The molecular weight of the structure represented by the formula (SL) is preferably 400 to 4,000, more preferably 500 to 3,000. By setting the molecular weight in the above range, it is possible to more effectively reduce the elastic modulus of the polybenzoxazole precursor after dehydration ring closure, suppress warpage, and improve solvent solubility.
 他の種類の繰り返し構造単位として式(SL)で表されるジアミン残基を含む場合、更に、テトラカルボン酸二無水物から無水物基の除去後に残存するテトラカルボン酸残基を繰り返し構造単位として含むことも好ましい。このようなテトラカルボン酸残基の例としては、式(2)中のR115の例が挙げられる。 When a diamine residue represented by the formula (SL) is contained as another type of repeating structural unit, the tetracarboxylic acid residue remaining after removal of the anhydride group from the tetracarboxylic dianhydride is used as the repeating structural unit. It is also preferable to include it. Examples of such a tetracarboxylic acid residue include the example of R 115 in the formula (2).
 ポリベンゾオキサゾール前駆体の重量平均分子量(Mw)は、例えば、後述する組成物に用いる場合、好ましくは18,000~30,000であり、より好ましくは20,000~29,000であり、更に好ましくは22,000~28,000である。また、数平均分子量(Mn)は、好ましくは7,200~14,000であり、より好ましくは8,000~12,000であり、更に好ましくは9,200~11,200である。
 上記ポリベンゾオキサゾール前駆体の分子量の分散度は、1.4以上であることが好ましく、1.5以上がより好ましく、1.6以上であることが更に好ましい。ポリベンゾオキサゾール前駆体の分子量の分散度の上限値は特に定めるものではないが、例えば、2.6以下が好ましく、2.5以下がより好ましく、2.4以下が更に好ましく、2.3以下が一層好ましく、2.2以下がより一層好ましい。
The weight average molecular weight (Mw) of the polybenzoxazole precursor is preferably 18,000 to 30,000, more preferably 20,000 to 29,000, and further, when used in the compositions described below. It is preferably 22,000 to 28,000. The number average molecular weight (Mn) is preferably 7,200 to 14,000, more preferably 8,000 to 12,000, and even more preferably 9,200 to 11,200.
The degree of dispersion of the molecular weight of the polybenzoxazole precursor is preferably 1.4 or more, more preferably 1.5 or more, and further preferably 1.6 or more. The upper limit of the dispersity of the molecular weight of the polybenzoxazole precursor is not particularly determined, but for example, it is preferably 2.6 or less, more preferably 2.5 or less, further preferably 2.4 or less, and 2.3 or less. Is more preferable, and 2.2 or less is even more preferable.
〔ポリアミドイミド前駆体〕
 ポリアミドイミド前駆体は、下記式(PAI-2)で表される繰返し単位を含むことが好ましい。
Figure JPOXMLDOC01-appb-C000020

 式(PAI-2)中、R117は3価の有機基を表し、R111は2価の有機基を表し、Aは酸素原子又は-NH-を表し、R113は水素原子又は1価の有機基を表す。
[Polyamide-imide precursor]
The polyamide-imide precursor preferably contains a repeating unit represented by the following formula (PAI-2).
Figure JPOXMLDOC01-appb-C000020

In formula (PAI-2), R 117 represents a trivalent organic group, R 111 represents a divalent organic group, A 2 represents an oxygen atom or -NH-, and R 113 represents a hydrogen atom or monovalent. Represents an organic group of.
 式(PAI-2)中、R117は、直鎖状又は分岐鎖状の脂肪族基、環状の脂肪族基、及び芳香族基、複素芳香族基、又は単結合若しくは連結基によりこれらを2以上連結した基が例示され、炭素数2~20の直鎖の脂肪族基、炭素数3~20の分岐の脂肪族基、炭素数3~20の環状の脂肪族基、炭素数6~20の芳香族基、又は、単結合若しくは連結基によりこれらを2以上組み合わせた基が好ましく、炭素数6~20の芳香族基、又は、単結合若しくは連結基により炭素数6~20の芳香族基を2以上組み合わせた基がより好ましい。
 上記連結基としては、-O-、-S-、-C(=O)-、-S(=O)-、アルキレン基、ハロゲン化アルキレン基、アリーレン基、又はこれらを2以上結合した連結基が好ましく、-O-、-S-、アルキレン基、ハロゲン化アルキレン基、アリーレン基、又はこれらを2以上結合した連結基がより好ましい。
 上記アルキレン基としては、炭素数1~20のアルキレン基が好ましく、炭素数1~10のアルキレン基がより好ましく、炭素数1~4のアルキレン基が更に好ましい。
 上記ハロゲン化アルキレン基としては、炭素数1~20のハロゲン化アルキレン基が好ましく、炭素数1~10のハロゲン化アルキレン基がより好ましく、炭素数1~4のハロゲン化アルキレン基がより好ましい。また、上記ハロゲン化アルキレン基におけるハロゲン原子としては、フッ素原子、塩素原子、臭素原子、ヨウ素原子等が挙げられ、フッ素原子が好ましい。上記ハロゲン化アルキレン基は、水素原子を有していても、水素原子の全てがハロゲン原子で置換されていてもよいが、水素原子の全てがハロゲン原子で置換されていることが好ましい。好ましいハロゲン化アルキレン基の例としては、(ジトリフルオロメチル)メチレン基等が挙げられる。
 上記アリーレン基としては、フェニレン基又はナフチレン基が好ましく、フェニレン基がより好ましく、1,3-フェニレン基又は1,4-フェニレン基が更に好ましい。
In formula (PAI-2), R 117 is composed of a linear or branched aliphatic group, a cyclic aliphatic group, and an aromatic group, a heteroarophatic group, or a single bond or a linking group. Examples of the above-mentioned linked groups are a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, a cyclic aliphatic group having 3 to 20 carbon atoms, and a cyclic aliphatic group having 6 to 20 carbon atoms. The aromatic group of the above, or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms or an aromatic group having 6 to 20 carbon atoms by a single bond or a linking group is preferable. A group in which two or more of the above are combined is more preferable.
The linking group includes -O-, -S-, -C (= O)-, -S (= O) 2- , an alkylene group, a halogenated alkylene group, an arylene group, or a link in which two or more of these are bonded. A group is preferable, and an —O—, —S—, an alkylene group, a halogenated alkylene group, an arylene group, or a linking group in which two or more of these are bonded is more preferable.
As the alkylene group, an alkylene group having 1 to 20 carbon atoms is preferable, an alkylene group having 1 to 10 carbon atoms is more preferable, and an alkylene group having 1 to 4 carbon atoms is further preferable.
As the halogenated alkylene group, a halogenated alkylene group having 1 to 20 carbon atoms is preferable, a halogenated alkylene group having 1 to 10 carbon atoms is more preferable, and a halogenated alkylene group having 1 to 4 carbon atoms is more preferable. Examples of the halogen atom in the halogenated alkylene group include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom and the like, and a fluorine atom is preferable. The halogenated alkylene group may have a hydrogen atom or all of the hydrogen atoms may be substituted with a halogen atom, but it is preferable that all of the hydrogen atoms are substituted with a halogen atom. Examples of preferred halogenated alkylene groups include (ditrifluoromethyl) methylene groups and the like.
As the arylene group, a phenylene group or a naphthylene group is preferable, a phenylene group is more preferable, and a 1,3-phenylene group or a 1,4-phenylene group is further preferable.
 また、R117は少なくとも1つのカルボキシ基がハロゲン化されていてもよいトリカルボン酸化合物から誘導されることが好ましい。上記ハロゲン化としては、塩素化が好ましい。
 本発明において、カルボキシ基を3つ有する化合物をトリカルボン酸化合物という。
 上記トリカルボン酸化合物の3つのカルボキシ基のうち2つのカルボキシ基は酸無水物化されていてもよい。
 ポリアミドイミド前駆体の製造に用いられるハロゲン化されていてもよいトリカルボン酸化合物としては、分岐鎖状の脂肪族、環状の脂肪族又は芳香族のトリカルボン酸化合物などが挙げられる。
 これらのトリカルボン酸化合物は、1種のみ用いてもよいし、2種以上用いてもよい。
Further, R 117 is preferably derived from a tricarboxylic acid compound in which at least one carboxy group may be halogenated. Chlorination is preferable as the halogenation.
In the present invention, a compound having three carboxy groups is referred to as a tricarboxylic acid compound.
Of the three carboxy groups of the tricarboxylic acid compound, two carboxy groups may be acid anhydrideized.
Examples of the halogenated tricarboxylic acid compound used in the production of the polyamide-imide precursor include branched chain aliphatic, cyclic aliphatic or aromatic tricarboxylic acid compounds.
Only one kind of these tricarboxylic acid compounds may be used, or two or more kinds may be used.
 具体的には、トリカルボン酸化合物としては、炭素数2~20の直鎖の脂肪族基、炭素数3~20の分岐の脂肪族基、炭素数3~20の環状の脂肪族基、炭素数6~20の芳香族基、又は、単結合若しくは連結基によりこれらを2以上組み合わせた基を含むトリカルボン酸化合物が好ましく、炭素数6~20の芳香族基、又は、単結合若しくは連結基により炭素数6~20の芳香族基を2以上組み合わせた基を含むトリカルボン酸化合物がより好ましい。 Specifically, the tricarboxylic acid compound includes a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, a cyclic aliphatic group having 3 to 20 carbon atoms, and a carbon number of carbon atoms. A tricarboxylic acid compound containing 6 to 20 aromatic groups or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms or carbon by a single bond or a linking group is preferable. A tricarboxylic acid compound containing a group in which two or more aromatic groups of the number 6 to 20 are combined is more preferable.
 また、トリカルボン酸化合物の具体例としては、1,2,3-プロパントリカルボン酸、1,3,5-ペンタントリカルボン酸、クエン酸、トリメリット酸、2,3,6-ナフタレントリカルボン酸、フタル酸(又は、無水フタル酸)と安息香酸とが単結合、-O-、-CH-、-C(CH-、-C(CF-、-SO-又はフェニレン基で連結された化合物等が挙げられる。
 これらの化合物は、2つのカルボキシ基が無水物化した化合物(例えば、トリメリット酸無水物)であってもよいし、少なくとも1つのカルボキシ基がハロゲン化した化合物(例えば、無水トリメリット酸クロリド)であってもよい。
Specific examples of the tricarboxylic acid compound include 1,2,3-propanetricarboxylic acid, 1,3,5-pentanetricarboxylic acid, citric acid, trimellitic acid, 2,3,6-naphthalenetricarboxylic acid, and phthalic acid. (Or phthalic acid anhydride) and benzoic acid are single-bonded, with -O-, -CH 2- , -C (CH 3 ) 2- , -C (CF 3 ) 2- , -SO 2- or phenylene group. Examples thereof include linked compounds.
These compounds may be compounds in which two carboxy groups are anhydrated (eg, trimellitic anhydride) or compounds in which at least one carboxy group is halogenated (eg, trimellitic anhydride). There may be.
 式(PAI-2)中、R111、A、R113はそれぞれ、上述の式(2)におけるR111、A、R113と同義であり、好ましい態様も同様である。 Wherein (PAI-2), each R 111, A 2, R 113, have the same meaning as R 111, A 2, R 113 in formula (2) described above, preferable embodiments are also the same.
 ポリアミドイミド前駆体は他の繰返し単位を更に含んでもよい。
 他の繰返し単位としては、上述の式(2)で表される繰返し単位、式(2-1)~式(2-6)のいずれかで表される繰返し単位、下記式(PAI-1)で表される繰返し単位等が挙げられる。
Figure JPOXMLDOC01-appb-C000021
The polyamide-imide precursor may further contain other repeating units.
Other repeating units include a repeating unit represented by the above formula (2), a repeating unit represented by any of the formulas (2-1) to (2-6), and the following formula (PAI-1). Examples include the repeating unit represented by.
Figure JPOXMLDOC01-appb-C000021
 式(PAI-1)中、R116は2価の有機基を表し、R111は2価の有機基を表す。
 式(PAI-1)中、R116は、直鎖状又は分岐鎖状の脂肪族基、環状の脂肪族基、及び芳香族基、複素芳香族基、又は単結合若しくは連結基によりこれらを2以上連結した基が例示され、炭素数2~20の直鎖の脂肪族基、炭素数3~20の分岐の脂肪族基、炭素数3~20の環状の脂肪族基、炭素数6~20の芳香族基、又は、単結合若しくは連結基によりこれらを2以上組み合わせた基が好ましく、炭素数6~20の芳香族基、又は、単結合若しくは連結基により炭素数6~20の芳香族基を2以上組み合わせた基がより好ましい。
 上記連結基としては、-O-、-S-、-C(=O)-、-S(=O)-、アルキレン基、ハロゲン化アルキレン基、アリーレン基、又はこれらを2以上結合した連結基が好ましく、-O-、-S-、アルキレン基、ハロゲン化アルキレン基、アリーレン基、又はこれらを2以上結合した連結基がより好ましい。
 上記アルキレン基としては、炭素数1~20のアルキレン基が好ましく、炭素数1~10のアルキレン基がより好ましく、炭素数1~4のアルキレン基が更に好ましい。
 上記ハロゲン化アルキレン基としては、炭素数1~20のハロゲン化アルキレン基が好ましく、炭素数1~10のハロゲン化アルキレン基がより好ましく、炭素数1~4のハロゲン化アルキレン基がより好ましい。また、上記ハロゲン化アルキレン基におけるハロゲン原子としては、フッ素原子、塩素原子、臭素原子、ヨウ素原子等が挙げられ、フッ素原子が好ましい。上記ハロゲン化アルキレン基は、水素原子を有していても、水素原子の全てがハロゲン原子で置換されていてもよいが、水素原子の全てがハロゲン原子で置換されていることが好ましい。好ましいハロゲン化アルキレン基の例としては、(ジトリフルオロメチル)メチレン基等が挙げられる。
 上記アリーレン基としては、フェニレン基又はナフチレン基が好ましく、フェニレン基がより好ましく、1,3-フェニレン基又は1,4-フェニレン基が更に好ましい。
In formula (PAI-1), R 116 represents a divalent organic group and R 111 represents a divalent organic group.
In formula (PAI-1), R 116 is a linear or branched aliphatic group, a cyclic aliphatic group, and an aromatic group, a heteroaromatic group, or a single bond or a linking group. Examples of the above-mentioned linked groups are a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, a cyclic aliphatic group having 3 to 20 carbon atoms, and a cyclic aliphatic group having 6 to 20 carbon atoms. The aromatic group of the above, or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms or an aromatic group having 6 to 20 carbon atoms by a single bond or a linking group is preferable. A group in which two or more of the above are combined is more preferable.
The linking group includes -O-, -S-, -C (= O)-, -S (= O) 2- , an alkylene group, a halogenated alkylene group, an arylene group, or a link in which two or more of these are bonded. A group is preferable, and an —O—, —S—, an alkylene group, a halogenated alkylene group, an arylene group, or a linking group in which two or more of these are bonded is more preferable.
As the alkylene group, an alkylene group having 1 to 20 carbon atoms is preferable, an alkylene group having 1 to 10 carbon atoms is more preferable, and an alkylene group having 1 to 4 carbon atoms is further preferable.
As the halogenated alkylene group, a halogenated alkylene group having 1 to 20 carbon atoms is preferable, a halogenated alkylene group having 1 to 10 carbon atoms is more preferable, and a halogenated alkylene group having 1 to 4 carbon atoms is more preferable. Examples of the halogen atom in the halogenated alkylene group include a fluorine atom, a chlorine atom, a bromine atom, an iodine atom and the like, and a fluorine atom is preferable. The halogenated alkylene group may have a hydrogen atom or all of the hydrogen atoms may be substituted with a halogen atom, but it is preferable that all of the hydrogen atoms are substituted with a halogen atom. Examples of preferred halogenated alkylene groups include (ditrifluoromethyl) methylene groups and the like.
As the arylene group, a phenylene group or a naphthylene group is preferable, a phenylene group is more preferable, and a 1,3-phenylene group or a 1,4-phenylene group is further preferable.
 また、R116はジカルボン酸化合物又はジカルボン酸ジハライド化合物から誘導されることが好ましい。
 本発明において、カルボキシ基を2つ有する化合物をジカルボン酸化合物、ハロゲン化されたカルボキシ基を2つ有する化合物をジカルボン酸ジハライド化合物という。
 ジカルボン酸ジハライド化合物におけるカルボキシ基は、ハロゲン化されていればよいが、例えば、塩素化されていることが好ましい。すなわち、ジカルボン酸ジハライド化合物は、ジカルボン酸ジクロリド化合物であることが好ましい。
 ポリアミドイミド前駆体の製造に用いられるハロゲン化されていてもよいジカルボン酸化合物又はジカルボン酸ジハライド化合物としては、直鎖状又は分岐鎖状の脂肪族、環状の脂肪族又は芳香族ジカルボン酸化合物又はジカルボン酸ジハライド化合物などが挙げられる。
 これらのジカルボン酸化合物又はジカルボン酸ジハライド化合物は、1種のみ用いてもよいし、2種以上用いてもよい。
Further, R 116 is preferably derived from a dicarboxylic acid compound or a dicarboxylic acid dihalide compound.
In the present invention, a compound having two carboxy groups is referred to as a dicarboxylic acid compound, and a compound having two halogenated carboxy groups is referred to as a dicarboxylic acid dihalide compound.
The carboxy group in the dicarboxylic acid dihalide compound may be halogenated, but is preferably chlorinated, for example. That is, the dicarboxylic acid dihalide compound is preferably a dicarboxylic acid dichloride compound.
Examples of the halogenated dicarboxylic acid compound or dicarboxylic acid dihalide compound used in the production of the polyamideimide precursor include linear or branched aliphatic, cyclic aliphatic or aromatic dicarboxylic acid compounds or dicarboxylic acids. Examples include aciddihalide compounds.
Only one kind or two or more kinds of these dicarboxylic acid compounds or dicarboxylic acid dihalide compounds may be used.
 具体的には、ジカルボン酸化合物又はジカルボン酸ジハライド化合物としては、炭素数2~20の直鎖の脂肪族基、炭素数3~20の分岐の脂肪族基、炭素数3~20の環状の脂肪族基、炭素数6~20の芳香族基、又は、単結合若しくは連結基によりこれらを2以上組み合わせた基を含むジカルボン酸化合物又はジカルボン酸ジハライド化合物が好ましく、炭素数6~20の芳香族基、又は、単結合若しくは連結基により炭素数6~20の芳香族基を2以上組み合わせた基を含むジカルボン酸化合物又はジカルボン酸ジハライド化合物がより好ましい。 Specifically, the dicarboxylic acid compound or the dicarboxylic acid dihalide compound includes a linear aliphatic group having 2 to 20 carbon atoms, a branched aliphatic group having 3 to 20 carbon atoms, and a cyclic fat having 3 to 20 carbon atoms. A dicarboxylic acid compound or a dicarboxylic acid dihalide compound containing a group group, an aromatic group having 6 to 20 carbon atoms, or a group in which two or more of these are combined by a single bond or a linking group is preferable, and an aromatic group having 6 to 20 carbon atoms is preferable. Alternatively, a dicarboxylic acid compound or a dicarboxylic acid dihalide compound containing a group in which two or more aromatic groups having 6 to 20 carbon atoms are combined by a single bond or a linking group is more preferable.
 また、ジカルボン酸化合物の具体例としては、マロン酸、ジメチルマロン酸、エチルマロン酸、イソプロピルマロン酸、ジ-n-ブチルマロン酸、スクシン酸、テトラフルオロスクシン酸、メチルスクシン酸、2,2-ジメチルスクシン酸、2,3-ジメチルスクシン酸、ジメチルメチルスクシン酸、グルタル酸、ヘキサフルオログルタル酸、2-メチルグルタル酸、3-メチルグルタル酸、2,2-ジメチルグルタル酸、3,3-ジメチルグルタル酸、3-エチル-3-メチルグルタル酸、アジピン酸、オクタフルオロアジピン酸、3-メチルアジピン酸、ピメリン酸、2,2,6,6-テトラメチルピメリン酸、スベリン酸、ドデカフルオロスベリン酸、アゼライン酸、セバシン酸、ヘキサデカフルオロセバシン酸、1,9-ノナン二酸、ドデカン二酸、トリデカン二酸、テトラデカン二酸、ペンタデカン二酸、ヘキサデカン二酸、ヘプタデカン二酸、オクタデカン二酸、ノナデカン二酸、エイコサン二酸、ヘンエイコサン二酸、ドコサン二酸、トリコサン二酸、テトラコサン二酸、ペンタコサン二酸、ヘキサコサン二酸、ヘプタコサン二酸、オクタコサン二酸、ノナコサン二酸、トリアコンタン二酸、ヘントリアコンタン二酸、ドトリアコンタン二酸、ジグリコール酸、フタル酸、イソフタル酸、テレフタル酸、4,4’-ビフェニルカルボン酸、4,4’-ビフェニルカルボン酸、4,4’-ジカルボキシジフェニルエーテル、ベンゾフェノン-4,4’-ジカルボン酸等が挙げられる。
 ジカルボン酸ジハライド化合物の具体例としては、上記ジカルボン酸化合物の具体例における2つのカルボキシ基をハロゲン化した構造の化合物が挙げられる。
Specific examples of the dicarboxylic acid compound include malonic acid, dimethylmalonic acid, ethylmalonic acid, isopropylmalonic acid, di-n-butylmalonic acid, glutaric acid, tetrafluorosuccinic acid, methylsuccinic acid, 2,2-. Dimethylsuccinic acid, 2,3-dimethylsuccinic acid, dimethylmethylsuccinic acid, glutaric acid, hexafluoroglutaric acid, 2-methylglutaric acid, 3-methylglutaric acid, 2,2-dimethylglutaric acid, 3, 3-Dimethylglutaric acid, 3-ethyl-3-methylglutaric acid, adipic acid, octafluoroadiponic acid, 3-methyladiponic acid, pimellinic acid, 2,2,6,6-tetramethylpimeric acid, suberic acid, Dodecafluorosveric acid, azelaic acid, sebacic acid, hexadecafluorosevacinic acid, 1,9-nonanedioic acid, dodecanedioic acid, tridecanedioic acid, tetradecanedioic acid, pentadecanedioic acid, hexadecanedioic acid, heptadecanedioic acid, octadecane Diacid, Nonadecan Diacid, Eikosan Diacid, Heneikosan Diacid, Docosan Diacid, Tricosan Diacid, Tetracosan Diacid, Pentacosan Diacid, Hexacosan Diacid, Heptakosan Diacid, Octakosan Diacid, Nonakosan Diacid, Triacanthani Acid, Hentria Contandioic Acid, DotriaContandiic Acid, Diglycolic Acid, Glutaric Acid, Isophthalic Acid, Telephthalic Acid, 4,4'-Biphenylcarboxylic Acid, 4,4'-Biphenylcarboxylic Acid, 4,4'- Examples thereof include dicarboxydiphenyl ether and benzophenone-4,4'-dicarboxylic acid.
Specific examples of the dicarboxylic acid dihalide compound include compounds having a structure in which two carboxy groups are halogenated in the specific examples of the dicarboxylic acid compound.
 式(PAI-1)中、R111は上述の式(2)におけるR111と同義であり、好ましい態様も同様である。 Wherein (PAI-1), R 111 has the same meaning as R 111 in the above equation (2), preferable embodiments thereof are also the same.
 ポリアミドイミド前駆体は、環状イミド構造及び環状イソイミド構造の少なくとも一方を有する繰返し単位として、下記式(PAI-3)及び(PAI-4)のいずれかで表される繰返し単位を含むことが好ましく、下記式(PAI-3)で表される繰返し単位を含むことがより好ましい。
Figure JPOXMLDOC01-appb-C000022

 式(PAI-3)又は式(PAI-4)中、R111及びR117はそれぞれ、式(PAI-2)中のR111及びR117と同義であり、好ましい態様も同様である。
The polyamide-imide precursor preferably contains a repeating unit represented by any of the following formulas (PAI-3) and (PAI-4) as a repeating unit having at least one of a cyclic imide structure and a cyclic isoimide structure. It is more preferable to include a repeating unit represented by the following formula (PAI-3).
Figure JPOXMLDOC01-appb-C000022

In formula (PAI-3) or formula (PAI-4), R 111 and R 117 are synonymous with R 111 and R 117 in formula (PAI-2), respectively, and so are preferred embodiments.
 式(PAI-3)及び(PAI-4)のいずれかで表される繰返し単位の含有量は、ポリアミドイミド前駆体における環状イミド構造及び環状イソイミド構造の合計含有量が上述の範囲内となる量とすればよい。 The content of the repeating unit represented by any of the formulas (PAI-3) and (PAI-4) is such that the total content of the cyclic imide structure and the cyclic isoimide structure in the polyamide-imide precursor is within the above range. And it is sufficient.
 また、ポリアミドイミド前駆体は、構造単位中にフッ素原子を有することも好ましい。ポリアミドイミド前駆体中のフッ素原子含有量は、10質量%以上が好ましく、また、20質量%以下が好ましい。 It is also preferable that the polyamide-imide precursor has a fluorine atom in the structural unit. The fluorine atom content in the polyamide-imide precursor is preferably 10% by mass or more, and preferably 20% by mass or less.
 また、基板との密着性を向上させる目的で、ポリアミドイミド前駆体は、シロキサン構造を有する脂肪族基と共重合していてもよい。具体的には、ジアミン成分として、ビス(3-アミノプロピル)テトラメチルジシロキサン、ビス(p-アミノフェニル)オクタメチルペンタシロキサンなどを用いる態様が挙げられる。 Further, for the purpose of improving the adhesion to the substrate, the polyamide-imide precursor may be copolymerized with an aliphatic group having a siloxane structure. Specifically, as the diamine component, an embodiment in which bis (3-aminopropyl) tetramethyldisiloxane, bis (p-aminophenyl) octamethylpentasiloxane, or the like is used can be mentioned.
 本発明におけるポリアミドイミド前駆体の一実施形態として、式(PAI-2)で表される繰返し単位、式(PAI-1)で表される繰返し単位、式(PAI-3)で表される繰返し単位、式(PAI-4)で表される繰返し単位、式(2)で表される繰り返し単位、式(2-1)~式(2-6)のいずれかで表される繰返し単位の合計含有量が、全繰り返し単位の50モル%以上である態様が挙げられる。上記合計含有量は、70モル%以上であることがより好ましく、90モル%以上であることが更に好ましく、90モル%超であることが特に好ましい。上記合計含有量の上限は、特に限定されず、末端を除くポリアミドイミド前駆体における全ての繰返し単位が、式(PAI-2)で表される繰返し単位、式(PAI-1)で表される繰返し単位、式(PAI-3)及び(PAI-4)のいずれかで表される繰返し単位、式(2)で表される繰り返し単位、式(2-1)~式(2-6)のいずれかで表される繰返し単位のいずれかであってもよい。
 また、本発明におけるポリアミドイミド前駆体の別の一実施形態として、式(PAI-2)で表される繰返し単位、式(PAI-1)で表される繰返し単位、及び、式(PAI-3)及び(PAI-4)のいずれかで表される繰返し単位の合計含有量が、全繰り返し単位の50モル%以上である態様が挙げられる。上記合計含有量は、70モル%以上であることがより好ましく、90モル%以上であることが更に好ましく、90モル%超であることが特に好ましい。上記合計含有量の上限は、特に限定されず、末端を除くポリアミドイミド前駆体における全ての繰返し単位が、式(PAI-2)で表される繰返し単位、式(PAI-1)で表される繰返し単位、又は、式(PAI-3)及び(PAI-4)のいずれかで表される繰返し単位のいずれかであってもよい。
As one embodiment of the polyamide-imide precursor in the present invention, a repeating unit represented by the formula (PAI-2), a repeating unit represented by the formula (PAI-1), and a repeating unit represented by the formula (PAI-3). The total of the units, the repeating unit represented by the formula (PAI-4), the repeating unit represented by the formula (2), and the repeating unit represented by any of the formulas (2-1) to (2-6). An embodiment in which the content is 50 mol% or more of all repeating units can be mentioned. The total content is more preferably 70 mol% or more, further preferably 90 mol% or more, and particularly preferably more than 90 mol%. The upper limit of the total content is not particularly limited, and all the repeating units in the polyamide-imide precursor except the terminal are represented by the repeating unit represented by the formula (PAI-2) and the formula (PAI-1). Repeating unit, repeating unit represented by any of the formulas (PAI-3) and (PAI-4), repeating unit represented by the formula (2), formulas (2-1) to (2-6). It may be any of the repeating units represented by either.
Further, as another embodiment of the polyamide-imide precursor in the present invention, a repeating unit represented by the formula (PAI-2), a repeating unit represented by the formula (PAI-1), and a formula (PAI-3). ) And (PAI-4), the total content of the repeating units is 50 mol% or more of all the repeating units. The total content is more preferably 70 mol% or more, further preferably 90 mol% or more, and particularly preferably more than 90 mol%. The upper limit of the total content is not particularly limited, and all the repeating units in the polyamide-imide precursor except the terminal are represented by the repeating unit represented by the formula (PAI-2) and the formula (PAI-1). It may be either a repeating unit or a repeating unit represented by any of the formulas (PAI-3) and (PAI-4).
 ポリアミドイミド前駆体の重量平均分子量(Mw)は、好ましくは2,000~500,000であり、より好ましくは5,000~100,000であり、更に好ましくは10,000~50,000である。また、数平均分子量(Mn)は、好ましくは800~250,000であり、より好ましくは、2,000~50,000であり、更に好ましくは、4,000~25,000である。 The weight average molecular weight (Mw) of the polyamide-imide precursor is preferably 2,000 to 500,000, more preferably 5,000 to 100,000, and even more preferably 10,000 to 50,000. .. The number average molecular weight (Mn) is preferably 800 to 250,000, more preferably 2,000 to 50,000, and even more preferably 4,000 to 25,000.
 ポリアミドイミド前駆体の分子量の分散度は、1.5~3.5が好ましく、2~3がより好ましい。
 本明細書において、分子量の分散度とは、重量平均分子量を数平均分子量により除した値(重量平均分子量/数平均分子量)をいう。
The degree of dispersion of the molecular weight of the polyamide-imide precursor is preferably 1.5 to 3.5, more preferably 2 to 3.
In the present specification, the degree of dispersion of the molecular weight means a value obtained by dividing the weight average molecular weight by the number average molecular weight (weight average molecular weight / number average molecular weight).
〔ポリイミド前駆体等の製造方法〕
 ポリイミド前駆体等は、ジカルボン酸又はジカルボン酸誘導体とジアミンとを反応させて得られる。好ましくは、ジカルボン酸又はジカルボン酸誘導体を、ハロゲン化剤を用いてハロゲン化させた後、ジアミンと反応させて得られる。
 ポリイミド前駆体等の製造方法では、反応に際し、有機溶剤を用いることが好ましい。有機溶剤は1種でもよいし、2種以上でもよい。
 有機溶剤としては、原料に応じて適宜定めることができるが、ピリジン、ジエチレングリコールジメチルエーテル(ジグリム)、N-メチルピロリドン及びN-エチルピロリドンが例示される。
[Manufacturing method of polyimide precursor, etc.]
A polyimide precursor or the like is obtained by reacting a dicarboxylic acid or a dicarboxylic acid derivative with a diamine. Preferably, the dicarboxylic acid or the dicarboxylic acid derivative is obtained by halogenating it with a halogenating agent and then reacting it with a diamine.
In the method for producing a polyimide precursor or the like, it is preferable to use an organic solvent in the reaction. The organic solvent may be one kind or two or more kinds.
The organic solvent can be appropriately determined depending on the raw material, and examples thereof include pyridine, diethylene glycol dimethyl ether (diglyme), N-methylpyrrolidone and N-ethylpyrrolidone.
 また、上記ハロゲン化剤を用いず、非ハロゲン系触媒を用いて合成することも好ましい。上記非ハロゲン系触媒としては、ハロゲン原子を含まない公知のアミド化触媒を特に制限なく使用することが可能であるが、例えば、ボロキシン化合物、N-ヒドロキシ化合物、3級アミン、リン酸エステル、アミン塩、ウレア化合物等、カルボジイミド化合物が挙げられる。上記カルボジイミド化合物としては、N,N’-ジイソプロピルカルボジイミド、N,N’-ジシクロへキシルカルボジイミド等が挙げられる。
 ポリイミド前駆体等の製造方法では、反応に際し、有機溶剤を用いることが好ましい。有機溶剤は1種でもよいし、2種以上でもよい。
 有機溶剤としては、原料に応じて適宜定めることができるが、ピリジン、ジエチレングリコールジメチルエーテル(ジグリム)、N-メチルピロリドン及びN-エチルピロリドンが例示される。
It is also preferable to synthesize using a non-halogen catalyst without using the above halogenating agent. As the non-halogen catalyst, a known amidation catalyst containing no halogen atom can be used without particular limitation. For example, a boroxin compound, an N-hydroxy compound, a tertiary amine, a phosphoric acid ester, or an amine can be used. Examples include carbodiimide compounds such as salts and urea compounds. Examples of the carbodiimide compound include N, N'-diisopropylcarbodiimide, N, N'-dicyclohexylcarbodiimide and the like.
In the method for producing a polyimide precursor or the like, it is preferable to use an organic solvent in the reaction. The organic solvent may be one kind or two or more kinds.
The organic solvent can be appropriately determined depending on the raw material, and examples thereof include pyridine, diethylene glycol dimethyl ether (diglyme), N-methylpyrrolidone and N-ethylpyrrolidone.
 ポリイミド等の合成において、例えば、ジカルボン酸又はジカルボン酸誘導体(ハロゲン化剤によりハロゲン化されていてもよいし、ハロゲン化せず、非ハロゲン系触媒を用いてもよい)とジアミンとを反応させる際の反応時間、反応温度、反応時のpHを適宜設定することにより、上述の環状イミド構造及び環状イソイミド構造の合計含有モル量、又は、上述のベンゾオキサゾール構造の含有モル量を調整することができる。 In the synthesis of polyimide or the like, for example, when a dicarboxylic acid or a dicarboxylic acid derivative (which may be halogenated by a halogenating agent or may not be halogenated and a non-halogenated catalyst may be used) is reacted with a diamine. The total molar content of the cyclic imide structure and the cyclic isoimide structure or the molar content of the benzoxazole structure described above can be adjusted by appropriately setting the reaction time, the reaction temperature, and the pH at the time of the reaction. ..
-末端封止剤-
 ポリイミド前駆体等の製造方法に際し、保存安定性をより向上させるため、酸無水物、モノカルボン酸、モノ酸クロリド化合物、モノ活性エステル化合物などの末端封止剤で、ポリイミド前駆体等の末端を封止することが好ましい。末端封止剤としては、モノアミンを用いることがより好ましく、モノアミンの好ましい化合物としては、アニリン、2-エチニルアニリン、3-エチニルアニリン、4-エチニルアニリン、5-アミノ-8-ヒドロキシキノリン、1-ヒドロキシ-7-アミノナフタレン、1-ヒドロキシ-6-アミノナフタレン、1-ヒドロキシ-5-アミノナフタレン、1-ヒドロキシ-4-アミノナフタレン、2-ヒドロキシ-7-アミノナフタレン、2-ヒドロキシ-6-アミノナフタレン、2-ヒドロキシ-5-アミノナフタレン、1-カルボキシ-7-アミノナフタレン、1-カルボキシ-6-アミノナフタレン、1-カルボキシ-5-アミノナフタレン、2-カルボキシ-7-アミノナフタレン、2-カルボキシ-6-アミノナフタレン、2-カルボキシ-5-アミノナフタレン、2-アミノ安息香酸、3-アミノ安息香酸、4-アミノ安息香酸、4-アミノサリチル酸、5-アミノサリチル酸、6-アミノサリチル酸、2-アミノベンゼンスルホン酸、3-アミノベンゼンスルホン酸、4-アミノベンゼンスルホン酸、3-アミノ-4,6-ジヒドロキシピリミジン、2-アミノフェノール、3-アミノフェノール、4-アミノフェノール、2-アミノチオフェノール、3-アミノチオフェノール、4-アミノチオフェノールなどが挙げられる。これらを2種以上用いてもよく、複数の末端封止剤を反応させることにより、複数の異なる末端基を導入してもよい。
-End sealant-
In order to further improve the storage stability in the method for producing a polyimide precursor or the like, the end of the polyimide precursor or the like is used as an end-capping agent such as an acid anhydride, a monocarboxylic acid, a monoacid chloride compound or a monoactive ester compound. It is preferable to seal. It is more preferable to use monoamine as the terminal encapsulant, and preferred compounds of monoamine are aniline, 2-ethynylaniline, 3-ethynylaniline, 4-ethynylaniline, 5-amino-8-hydroxyquinoline, 1-. Hydroxy-7-aminonaphthalene, 1-hydroxy-6-aminonaphthalene, 1-hydroxy-5-aminonaphthalene, 1-hydroxy-4-aminonaphthalene, 2-hydroxy-7-aminonaphthalene, 2-hydroxy-6-amino Naphthalene, 2-hydroxy-5-aminonaphthalene, 1-carboxy-7-aminonaphthalene, 1-carboxy-6-aminonaphthalene, 1-carboxy-5-aminonaphthalene, 2-carboxy-7-aminonaphthalene, 2-carboxy -6-Aminonaphthalene, 2-carboxy-5-Aminonaphthalene, 2-Aminobenzoic acid, 3-Aminobenzoic acid, 4-Aminobenzoic acid, 4-Aminosalicylic acid, 5-Aminosalicylic acid, 6-Aminosalicylic acid, 2- Aminobenzene sulfonic acid, 3-aminobenzene sulfonic acid, 4-aminobenzene sulfonic acid, 3-amino-4,6-dihydroxypyrimidine, 2-aminophenol, 3-aminophenol, 4-aminophenol, 2-aminothiophenol , 3-Aminothiophenol, 4-Aminothiophenol and the like. Two or more of these may be used, and a plurality of different end groups may be introduced by reacting a plurality of end sealants.
-固体析出-
 ポリイミド前駆体等の製造に際し、固体を析出する工程を含んでいてもよい。具体的には、反応液中のポリイミド前駆体等を、水中に沈殿させ、テトラヒドロフラン等のポリイミド前駆体等が可溶な溶剤に溶解させることによって、固体析出することができる。
 その後、ポリイミド前駆体等を乾燥して、粉末状のポリイミド前駆体等を得ることができる。
-Solid precipitation-
A step of precipitating a solid may be included in the production of the polyimide precursor or the like. Specifically, the polyimide precursor or the like in the reaction solution can be precipitated in water, and the polyimide precursor or the like such as tetrahydrofuran can be dissolved in a soluble solvent to precipitate a solid.
Then, the polyimide precursor or the like can be dried to obtain a powdery polyimide precursor or the like.
〔含有量〕
 本発明の組成物における特定樹脂の含有量は、組成物の全固形分に対し20質量%以上であることが好ましく、30質量%以上であることがより好ましく、40質量%以上であることが更に好ましく、50質量%以上であることが一層好ましい。また、本発明の組成物における樹脂の含有量は、組成物の全固形分に対し、99.5質量%以下であることが好ましく、99質量%以下であることがより好ましく、98質量%以下であることが更に好ましく、97質量%以下であることが一層好ましく、95質量%以下であることがより一層好ましい。
 本発明の組成物は、特定樹脂を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。
〔Content〕
The content of the specific resin in the composition of the present invention is preferably 20% by mass or more, more preferably 30% by mass or more, and more preferably 40% by mass or more, based on the total solid content of the composition. More preferably, it is more preferably 50% by mass or more. The content of the resin in the composition of the present invention is preferably 99.5% by mass or less, more preferably 99% by mass or less, and 98% by mass or less, based on the total solid content of the composition. It is more preferably 97% by mass or less, and even more preferably 95% by mass or less.
The composition of the present invention may contain only one type of specific resin, or may contain two or more types. When two or more kinds are included, the total amount is preferably in the above range.
 また、本発明の硬化性樹脂組成物は、少なくとも2種の樹脂を含むことも好ましい。
 具体的には、本発明の硬化性樹脂組成物は、特定樹脂と、後述する他の樹脂とを合計で2種以上含んでもよいし、特定樹脂を2種以上含んでいてもよいが、特定樹脂を2種以上含むことが好ましい。
 本発明の硬化性樹脂組成物が特定樹脂を2種以上含む場合、例えば、ポリイミド前駆体であって、二無水物由来の構造(上述の式(2)でいうR115)が異なる2種以上のポリイミド前駆体を含むことが好ましい。
 本発明の硬化性樹脂組成物がポリイミド前駆体を2種以上含む場合、少なくとも1種のポリイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が上述の範囲内であればよく、全てのポリイミド前駆体の合計量を1gとした場合に対する、全てのポリイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が上述の範囲であることが好ましく、硬化性樹脂組成物に含まれるポリイミド前駆体のそれぞれが、環状イミド構造及び環状イソイミド構造を上述の範囲で含むことがより好ましい。
 本発明の硬化性樹脂組成物がポリベンゾオキサゾール前駆体を2種以上含む場合、少なくとも1種のポリベンゾオキサゾール前駆体に含まれるベンゾオキサゾール構造の含有モル量が上述の範囲内であればよく、全てのポリベンゾオキサゾール前駆体の合計量を1gとした場合に対する、全てのポリベンゾオキサゾール前駆体に含まれるベンゾオキサゾール構造の合計含有モル量が上述の範囲であることが好ましく、硬化性樹脂組成物に含まれるポリイミド前駆体のそれぞれが、環状イミド構造及び環状イソイミド構造の少なくとも一方を上述の範囲で含むことがより好ましい。
 本発明の硬化性樹脂組成物がポリアミドイミド前駆体を2種以上含む場合、少なくとも1種のポリアミドイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が上述の範囲内であればよく、全てのポリアミドイミド前駆体の合計量を1gとした場合に対する、全てのポリアミドイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が上述の範囲であることが好ましく、硬化性樹脂組成物に含まれるポリアミドイミド前駆体のそれぞれが、環状イミド構造及び環状イソイミド構造の少なくとも一方を上述の範囲で含むことがより好ましい。
Further, the curable resin composition of the present invention preferably contains at least two kinds of resins.
Specifically, the curable resin composition of the present invention may contain two or more kinds of the specific resin and another resin described later in total, or may contain two or more kinds of the specific resin, but is specific. It is preferable to contain two or more kinds of resins.
When the curable resin composition of the present invention contains two or more kinds of specific resins, for example, two or more kinds of polyimide precursors having different structures derived from dianhydride (R 115 in the above formula (2)). It is preferable to contain the polyimide precursor of.
When the curable resin composition of the present invention contains two or more types of polyimide precursors, the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in at least one type of polyimide precursor may be within the above range. , The total molar content of the cyclic imide structure and the cyclic isoimide structure contained in all the polyimide precursors is preferably in the above range with respect to the case where the total amount of all the polyimide precursors is 1 g, and the curable resin composition. It is more preferable that each of the polyimide precursors contained in the product contains a cyclic imide structure and a cyclic isoimide structure in the above range.
When the curable resin composition of the present invention contains two or more polybenzoxazole precursors, the molar content of the benzoxazole structure contained in at least one polybenzoxazole precursor may be within the above range. The total molar content of the benzoxazole structure contained in all the polybenzoxazole precursors is preferably in the above range with respect to the case where the total amount of all the polybenzoxazole precursors is 1 g, and the curable resin composition. It is more preferable that each of the polyimide precursors contained in the above contains at least one of a cyclic imide structure and a cyclic isoimide structure in the above range.
When the curable resin composition of the present invention contains two or more kinds of polyamide-imide precursors, the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in at least one kind of polyamide-imide precursor is within the above range. It is preferable that the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in all the polyamide-imide precursors is in the above range with respect to the case where the total amount of all the polyamide-imide precursors is 1 g. It is more preferable that each of the polyamide-imide precursors contained in the curable resin composition contains at least one of a cyclic imide structure and a cyclic isoimide structure in the above range.
<有機金属錯体>
 本発明の硬化性樹脂組成物は、有機金属錯体を含む。
 有機金属錯体とは、金属原子を含む有機錯体化合物であればよいが、金属原子及び有機基を含む錯体化合物であることが好ましく、金属原子に対して有機基が配位した化合物であることがより好ましく、メタロセン化合物であることが更に好ましい。
 本発明において、メタロセン化合物とは、置換基を有してもよいシクロペンタジエニルアニオン誘導体2個をη5-配位子として有する有機金属錯体をいう。
 上記有機基としては、特に限定されないが、炭化水素基、又は、炭化水素基とヘテロ原子との組み合わせからなる基が好ましい。ヘテロ原子としては、酸素原子、硫黄原子、窒素原子が好ましい。
 本発明では、有機基の少なくとも1つは環状基であることが好ましく、少なくとも2つは環状基であることがより好ましい。
 上記環状基は、5員環の環状基及び6員環の環状基から選択されることが好ましく、5員環の環状基であることがより好ましい。
 上記環状基は、炭化水素環でも複素環でもよいが、炭化水素環が好ましい。
 5員環の環状基としては、シクロペンタジエニル基が好ましい。
 また、本発明で用いる有機金属錯体は、1分子中に2~4個の環状基を含むことが好ましい。
<Organometallic complex>
The curable resin composition of the present invention contains an organometallic complex.
The organic metal complex may be an organic complex compound containing a metal atom, but is preferably a complex compound containing a metal atom and an organic group, and is a compound in which an organic group is coordinated with respect to the metal atom. More preferably, it is a metallocene compound.
In the present invention, the metallocene compound refers to an organometallic complex having two cyclopentadienyl anion derivatives which may have a substituent as η5-ligands.
The organic group is not particularly limited, but a hydrocarbon group or a group composed of a combination of a hydrocarbon group and a heteroatom is preferable. As the hetero atom, an oxygen atom, a sulfur atom and a nitrogen atom are preferable.
In the present invention, at least one of the organic groups is preferably a cyclic group, and at least two are more preferably cyclic groups.
The cyclic group is preferably selected from a 5-membered cyclic group and a 6-membered cyclic group, and more preferably a 5-membered cyclic group.
The cyclic group may be a hydrocarbon ring or a heterocycle, but a hydrocarbon ring is preferable.
As the cyclic group of the 5-membered ring, a cyclopentadienyl group is preferable.
Further, the organometallic complex used in the present invention preferably contains 2 to 4 cyclic groups in one molecule.
 有機金属錯体に含まれる金属としては、特に限定されないが、第4族元素に該当する金属であることが好ましく、チタン、ジルコニウム及びハフニウムよりなる群から選ばれた少なくとも1種の金属であることがより好ましく、チタン及びジルコニウムよりなる群から選ばれた少なくとも1種の金属であることが更に好ましく、チタンであることが特に好ましい。 The metal contained in the organic metal complex is not particularly limited, but is preferably a metal corresponding to a Group 4 element, and is at least one metal selected from the group consisting of titanium, zirconium and hafnium. More preferably, it is more preferably at least one metal selected from the group consisting of titanium and zirconium, and particularly preferably titanium.
 有機金属錯体は、金属原子を2つ以上含んでもよいし、金属原子を1つのみ含んでもよいが、金属原子を1つのみ含むことが好ましい。有機金属錯体が金属原子を2つ以上含む場合、1種のみの金属原子を含んでもよいし、2種以上の金属原子を含んでもよい。 The organometallic complex may contain two or more metal atoms or may contain only one metal atom, but preferably contains only one metal atom. When the organometallic complex contains two or more metal atoms, it may contain only one type of metal atom or may contain two or more types of metal atoms.
 有機金属錯体は、フェロセン化合物、チタノセン化合物、ジルコノセン化合物又はハフノセン化合物であることが好ましく、チタノセン化合物、ジルコノセン化合物又はハフノセン化合物であることがより好ましく、チタノセン化合物、又は、ジルコノセン化合物であることが更に好ましく、チタノセン化合物であることが特に好ましい。 The organic metal complex is preferably a ferrocene compound, a titanosen compound, a zirconocene compound or a hafnosen compound, more preferably a titanosen compound, a zirconocene compound or a hafnosen compound, and further preferably a titanosen compound or a zirconocene compound. , Titanocene compounds are particularly preferred.
 有機金属錯体が光ラジカル重合開始能を有する態様も、本発明の好ましい態様の1つである。
 本発明によれば、特定樹脂を用いることにより、有機金属錯体が膜中で均一に近い状態で分散すると考えられる。
 そのため、有機金属錯体が光ラジカル重合開始能を有する場合、有機金属錯体が凝集することによる、局所的なラジカル重合開始剤の凝集が抑制されると考えられる。
 ラジカル重合開始剤の凝集が抑制されることにより、特定樹脂又は架橋剤の重合度も膜内で均一に近い状態になりやすいと考えられる。そのため、現像残渣の発生、パターンの断線などが起こりにくく、解像性が向上しやすいと考えられる。
 本発明において、光ラジカル重合開始能を有するとは、光の照射によりラジカル重合を開始させることのできるフリーラジカルを発生させることができることを意味する。例えば、ラジカル架橋剤と有機金属錯体とを含む組成物に対して、有機金属錯体が光を吸収する波長域であって、ラジカル架橋剤が光を吸収しない波長域の光を照射した時に、ラジカル架橋剤の消失の有無を確認することにより光ラジカル重合開始能の有無を確認することができる。消失の有無を確認するには、ラジカル架橋剤の種類に応じて適宜の方法を選択できるが、例えばIR測定(赤外分光測定)又はHPLC測定(高速液体クロマトグラフィ)により確認すればよい。
 有機金属錯体が光ラジカル重合開始能を有する場合、有機金属錯体はメタロセン化合物であることが好ましく、チタノセン化合物、ジルコノセン化合物又はハフノセン化合物であることがより好ましく、チタノセン化合物、又は、ジルコノセン化合物であることが更に好ましく、チタノセン化合物であることが特に好ましい。
 有機金属錯体が光ラジカル重合開始能を有しない場合、有機金属錯体は、チタノセン化合物、テトラアルコキシチタン化合物、チタンアシレート化合物、チタンキレート化合物、ジルコノセン化合物及びハフノセン化合物よりなる群から選択された少なくとも1種の化合物であることが好ましく、チタノセン化合物、ジルコノセン化合物及びハフノセン化合物よりなる群から選択された少なくとも1種の化合物であることがより好ましく、チタノセン化合物及びジルコノセン化合物よりなる群から選択された少なくとも1種の化合物であることが更に好ましく、チタノセン化合物であることが特に好ましい。
An embodiment in which the organometallic complex has an ability to initiate photoradical polymerization is also one of the preferred embodiments of the present invention.
According to the present invention, it is considered that the organometallic complex is dispersed in the film in a nearly uniform state by using the specific resin.
Therefore, when the organometallic complex has the ability to initiate photoradical polymerization, it is considered that the aggregation of the organometallic complex due to the aggregation of the organic metal complex suppresses the aggregation of the local radical polymerization initiator.
It is considered that the degree of polymerization of the specific resin or the cross-linking agent tends to be close to uniform in the film by suppressing the aggregation of the radical polymerization initiator. Therefore, it is considered that the generation of development residue and the disconnection of the pattern are unlikely to occur, and the resolution is likely to be improved.
In the present invention, having the ability to initiate photoradical polymerization means that free radicals capable of initiating radical polymerization can be generated by irradiation with light. For example, when a composition containing a radical cross-linking agent and an organic metal complex is irradiated with light in a wavelength range in which the organic metal complex absorbs light and the radical cross-linking agent does not absorb light, radicals are generated. By confirming the presence or absence of the disappearance of the cross-linking agent, the presence or absence of the photoradical polymerization initiation ability can be confirmed. In order to confirm the presence or absence of disappearance, an appropriate method can be selected depending on the type of radical cross-linking agent, and for example, it may be confirmed by IR measurement (infrared spectroscopy measurement) or HPLC measurement (high performance liquid chromatography).
When the organometallic complex has a photoradical polymerization initiating ability, the organometallic complex is preferably a metallocene compound, more preferably a titanosen compound, a zirconocene compound or a hafnosen compound, and is a titanosen compound or a zirconocene compound. Is more preferable, and a titanosen compound is particularly preferable.
When the organic metal complex does not have the ability to initiate photoradical polymerization, the organic metal complex is at least one selected from the group consisting of a titanosen compound, a tetraalkoxytitanium compound, a titanium acylate compound, a titanium chelate compound, a zirconocene compound and a hafnosen compound. It is preferably a compound of a species, more preferably at least one compound selected from the group consisting of a titanosen compound, a zirconocene compound and a hafnosen compound, and more preferably at least one selected from the group consisting of a titanosen compound and a zirconocene compound. It is more preferably a species compound, and particularly preferably a titanosen compound.
 有機金属錯体の分子量は、50~2,000が好ましく、100~1,000がより好ましい。 The molecular weight of the organometallic complex is preferably 50 to 2,000, more preferably 100 to 1,000.
 有機金属錯体としては、下記式(P)で表される化合物が好ましく挙げられる。
Figure JPOXMLDOC01-appb-C000023

 式(P)中、Mは、金属原子であり、Rはそれぞれ独立に、置換基である。
 上記Rは、それぞれ独立に、芳香族基、アルキル基、ハロゲン原子及びアルキルスルホニルオキシ基から選択されることが好ましい。
As the organometallic complex, a compound represented by the following formula (P) is preferably mentioned.
Figure JPOXMLDOC01-appb-C000023

In formula (P), M is a metal atom and R is an independent substituent.
The R is preferably independently selected from an aromatic group, an alkyl group, a halogen atom and an alkylsulfonyloxy group.
 式(P)中、Mが表す金属原子としては、鉄原子、チタン原子、ジルコニウム原子又はハフニウム原子が好ましく、チタン原子、ジルコニウム原子又はハフニウム原子がより好ましく、チタン原子又はジルコニウム原子が更に好ましく、チタン原子が特に好ましい。
 式(P)中のRにおける芳香族基としては、炭素数6~20の芳香族基が挙げられ、炭素数6~20の芳香族炭化水素基が好ましく、フェニル基、1-ナフチル基、又は、2-ナフチル基等が挙げられる。
 式(P)中のRにおけるアルキル基としては、炭素数1~20のアルキル基が好ましく、炭素数1~10のアルキル基がより好ましく、メチル基、エチル基、プロピル基、オクチル基、イソプロピル基、t-ブチル基、イソペンチル基、2-エチルヘキシル基、2-メチルヘキシル基、シクロペンチル基等が挙げられる。
 上記Rにおけるハロゲン原子としては、F、Cl、Br、Iが挙げられる。
 上記Rにおけるアルキルスルホニルオキシ基を構成するアルキル基としては、炭素数1~20のアルキル基が好ましく、炭素数1~10のアルキル基がより好ましく、メチル基、エチル基、プロピル基、オクチル基、イソプロピル基、t-ブチル基、イソペンチル基、2-エチルヘキシル基、2-メチルヘキシル基、シクロペンチル基等が挙げられる。
 上記Rは、更に置換基を有していてもよい。置換基の例としては、ハロゲン原子(F、Cl、Br、I)、ヒドロキシ基、カルボキシ基、アミノ基、シアノ基、アリール基、アルコキシ基、アリールオキシ基、アシル基、アルコキシカルボニル基、アリールオキシカルボニル基、アシルオキシ基、モノアルキルアミノ基、ジアルキルアミノ基、モノアリールアミノ基及びジアリールアミノ基等が挙げられる。
In the formula (P), as the metal atom represented by M, an iron atom, a titanium atom, a zirconium atom or a hafnium atom is preferable, a titanium atom, a zirconium atom or a hafnium atom is more preferable, a titanium atom or a zirconium atom is further preferable, and titanium. Atoms are particularly preferred.
Examples of the aromatic group in R in the formula (P) include an aromatic group having 6 to 20 carbon atoms, preferably an aromatic hydrocarbon group having 6 to 20 carbon atoms, a phenyl group, a 1-naphthyl group, or an aromatic group. , 2-naphthyl group and the like.
As the alkyl group in R in the formula (P), an alkyl group having 1 to 20 carbon atoms is preferable, an alkyl group having 1 to 10 carbon atoms is more preferable, and a methyl group, an ethyl group, a propyl group, an octyl group, and an isopropyl group. , T-Butyl group, Isopentyl group, 2-Ethylhexyl group, 2-Methylhexyl group, Cyclopentyl group and the like.
Examples of the halogen atom in R include F, Cl, Br, and I.
As the alkyl group constituting the alkylsulfonyloxy group in R, an alkyl group having 1 to 20 carbon atoms is preferable, an alkyl group having 1 to 10 carbon atoms is more preferable, and a methyl group, an ethyl group, a propyl group, an octyl group, and the like. Examples thereof include an isopropyl group, a t-butyl group, an isopentyl group, a 2-ethylhexyl group, a 2-methylhexyl group, a cyclopentyl group and the like.
The R may further have a substituent. Examples of substituents include halogen atom (F, Cl, Br, I), hydroxy group, carboxy group, amino group, cyano group, aryl group, alkoxy group, aryloxy group, acyl group, alkoxycarbonyl group, aryloxy. Examples thereof include a carbonyl group, an acyloxy group, a monoalkylamino group, a dialkylamino group, a monoarylamino group and a diarylamino group.
 有機金属錯体の具体例としては、特に限定されるものではないが、テトライソプロポキシチタン、テトラキス(2-エチルヘキシルオキシ)チタン、ジイソプロポキシビス(エチルアセトアセテート)チタン、ジイソプロポキシビス(アセチルアセトナト)チタン、ビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロ-3-(1H-ピロール-1-イル)フェニル)チタニウム、ペンタメチルシクロペンタジエニルチタニウムトリメトキサイド、ビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロフェニル)チタニウム及び、下記化合物が例示される。
Figure JPOXMLDOC01-appb-C000024
Specific examples of the organic metal complex are not particularly limited, but are tetraisopropoxytitanium, tetrakis (2-ethylhexyloxy) titanium, diisopropoxybis (ethylacetacetate) titanium, and diisopropoxybis (acetylacetate). Nato) Titanium, bis (η5-2,4-cyclopentadiene-1-yl) bis (2,6-difluoro-3- (1H-pyrrole-1-yl) phenyl) titanium, pentamethylcyclopentadiene titanium tri Examples thereof include methoxide, bis (η5-2,4-cyclopentadiene-1-yl) bis (2,6-difluorophenyl) titanium, and the following compounds.
Figure JPOXMLDOC01-appb-C000024
 その他、国際公開第2018/025738号の段落0078~0088に記載の化合物も使用することができるが、これに限定されるものではない。 In addition, the compounds described in paragraphs 0078 to 0088 of International Publication No. 2018/025738 can also be used, but the present invention is not limited thereto.
 有機金属錯体の含有量は、本発明の硬化性樹脂組成物の全固形分に対し、0.1~30質量%が好ましい。下限は、1.0質量%以上がより好ましく、1.5質量%以上が更に好ましく、3.0質量%以上が特に好ましい。上限は、25質量%以下がより好ましい。
 有機金属錯体は、1種又は2種以上を用いることができる。2種以上を用いる場合は、合計量が上記範囲であることが好ましい。
The content of the organometallic complex is preferably 0.1 to 30% by mass with respect to the total solid content of the curable resin composition of the present invention. The lower limit is more preferably 1.0% by mass or more, further preferably 1.5% by mass or more, and particularly preferably 3.0% by mass or more. The upper limit is more preferably 25% by mass or less.
As the organometallic complex, one kind or two or more kinds can be used. When two or more kinds are used, the total amount is preferably in the above range.
<他の樹脂>
 本発明の組成物は、上述した特定樹脂と、特定樹脂とは異なる、他の樹脂(以下、単に「他の樹脂」ともいう。)とを含んでもよい。
 他の樹脂としては、ポリアミドイミド、ポリアミドイミド前駆体、フェノール樹脂、ポリアミド、エポキシ樹脂、ポリシロキサン、シロキサン構造を含む樹脂、アクリル樹脂等が挙げられる。
 例えば、アクリル樹脂を更に加えることにより、塗布性に優れた組成物が得られ、また、耐溶剤性に優れた有機膜が得られる。
 例えば、後述する架橋剤に代えて、又は、後述する架橋剤に加えて、重量平均分子量が20,000以下の重合性基価の高いアクリル系樹脂を組成物に添加することにより、組成物の塗布性、有機膜の耐溶剤性等を向上させることができる。
<Other resins>
The composition of the present invention may contain the above-mentioned specific resin and another resin (hereinafter, also simply referred to as “other resin”) different from the specific resin.
Examples of other resins include polyamide-imide, polyamide-imide precursor, phenol resin, polyamide, epoxy resin, polysiloxane, resin containing a siloxane structure, and acrylic resin.
For example, by further adding an acrylic resin, a composition having excellent coatability can be obtained, and an organic film having excellent solvent resistance can be obtained.
For example, the composition may be prepared by adding an acrylic resin having a weight average molecular weight of 20,000 or less and having a high polymerizable base value to the composition in place of the cross-linking agent described later or in addition to the cross-linking agent described later. It is possible to improve the coatability, the solvent resistance of the organic film, and the like.
 本発明の組成物が他の樹脂を含む場合、他の樹脂の含有量は、組成物の全固形分に対し、0.01質量%以上であることが好ましく、0.05質量%以上であることがより好ましく、1質量%以上であることが更に好ましく、2質量%以上であることが一層好ましく、5質量%以上であることがより一層好ましく、10質量%以上であることが更に一層好ましい。
 また、本発明の組成物における、他の樹脂の含有量は、組成物の全固形分に対し、80質量%以下であることが好ましく、75質量%以下であることがより好ましく、70質量%以下であることが更に好ましく、60質量%以下であることが一層好ましく、50質量%以下であることがより一層好ましい。
 また、本発明の組成物の好ましい一態様として、他の樹脂の含有量が低含有量である態様とすることもできる。上記態様において、他の樹脂の含有量は、組成物の全固形分に対し、20質量%以下であることが好ましく、15質量%以下であることがより好ましく、10質量%以下であることが更に好ましく、5質量%以下であることが一層好ましく、1質量%以下であることがより一層好ましい。上記含有量の下限は特に限定されず、0質量%以上であればよい。
 本発明の組成物は、他の樹脂を1種のみ含んでいてもよいし、2種以上含んでいてもよい。2種以上含む場合、合計量が上記範囲となることが好ましい。
When the composition of the present invention contains another resin, the content of the other resin is preferably 0.01% by mass or more, preferably 0.05% by mass or more, based on the total solid content of the composition. More preferably, it is more preferably 1% by mass or more, further preferably 2% by mass or more, further preferably 5% by mass or more, further preferably 10% by mass or more. ..
The content of the other resin in the composition of the present invention is preferably 80% by mass or less, more preferably 75% by mass or less, and 70% by mass, based on the total solid content of the composition. It is more preferably less than or equal to, more preferably 60% by mass or less, and even more preferably 50% by mass or less.
Further, as a preferable aspect of the composition of the present invention, the content of the other resin may be low. In the above embodiment, the content of the other resin is preferably 20% by mass or less, more preferably 15% by mass or less, and preferably 10% by mass or less, based on the total solid content of the composition. More preferably, it is more preferably 5% by mass or less, and even more preferably 1% by mass or less. The lower limit of the content is not particularly limited, and may be 0% by mass or more.
The composition of the present invention may contain only one type of other resin, or may contain two or more types. When two or more kinds are included, the total amount is preferably in the above range.
<溶剤>
 本発明の硬化性樹脂組成物は、溶剤を含有することが好ましい。溶剤は、公知の溶剤を任意に使用できる。溶剤は有機溶剤が好ましい。有機溶剤としては、エステル類、エーテル類、ケトン類、環式炭化水素類、スルホキシド類、アミド類、ウレア類、アルコール類などの化合物が挙げられる。
<Solvent>
The curable resin composition of the present invention preferably contains a solvent. As the solvent, a known solvent can be arbitrarily used. The solvent is preferably an organic solvent. Examples of the organic solvent include compounds such as esters, ethers, ketones, cyclic hydrocarbons, sulfoxides, amides, ureas, and alcohols.
 エステル類として、例えば、酢酸エチル、酢酸-n-ブチル、酢酸イソブチル、酢酸へキシル、ギ酸アミル、酢酸イソアミル、プロピオン酸ブチル、酪酸イソプロピル、酪酸エチル、酪酸ブチル、乳酸メチル、乳酸エチル、γ-ブチロラクトン、ε-カプロラクトン、δ-バレロラクトン、アルキルオキシ酢酸アルキル(例えば、アルキルオキシ酢酸メチル、アルキルオキシ酢酸エチル、アルキルオキシ酢酸ブチル(例えば、メトキシ酢酸メチル、メトキシ酢酸エチル、メトキシ酢酸ブチル、エトキシ酢酸メチル、エトキシ酢酸エチル等))、3-アルキルオキシプロピオン酸アルキルエステル類(例えば、3-アルキルオキシプロピオン酸メチル、3-アルキルオキシプロピオン酸エチル等(例えば、3-メトキシプロピオン酸メチル、3-メトキシプロピオン酸エチル、3-エトキシプロピオン酸メチル、3-エトキシプロピオン酸エチル等))、2-アルキルオキシプロピオン酸アルキルエステル類(例えば、2-アルキルオキシプロピオン酸メチル、2-アルキルオキシプロピオン酸エチル、2-アルキルオキシプロピオン酸プロピル等(例えば、2-メトキシプロピオン酸メチル、2-メトキシプロピオン酸エチル、2-メトキシプロピオン酸プロピル、2-エトキシプロピオン酸メチル、2-エトキシプロピオン酸エチル))、2-アルキルオキシ-2-メチルプロピオン酸メチル及び2-アルキルオキシ-2-メチルプロピオン酸エチル(例えば、2-メトキシ-2-メチルプロピオン酸メチル、2-エトキシ-2-メチルプロピオン酸エチル等)、ピルビン酸メチル、ピルビン酸エチル、ピルビン酸プロピル、アセト酢酸メチル、アセト酢酸エチル、2-オキソブタン酸メチル、2-オキソブタン酸エチル、ヘキサン酸エチル、ヘプタン酸エチル、マロン酸ジメチル、マロン酸ジエチル等が好適なものとして挙げられる。 Examples of esters include ethyl acetate, n-butyl acetate, isobutyl acetate, hexyl acetate, amyl formate, isoamyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl butyrate, methyl lactate, ethyl lactate, and γ-butyrolactone. , Ε-caprolactone, δ-valerolactone, alkylalkyloxyacetate (eg, methyl alkyloxyacetate, ethyl alkyloxyacetate, butyl alkyloxyacetate (eg, methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, Ethyl ethoxyacetate, etc.)), 3-alkyloxypropionate alkyl esters (eg, methyl 3-alkyloxypropionate, ethyl 3-alkyloxypropionate, etc.) (eg, methyl 3-methoxypropionate, 3-methoxypropionate, etc.) Ethyl, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, etc.)), 2-alkyloxypropionate alkyl esters (eg, methyl 2-alkyloxypropionate, ethyl 2-alkyloxypropionate, 2-alkyl) Propyl oxypropionate and the like (eg, methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, ethyl 2-ethoxypropionate), 2-alkyloxy- Methyl 2-methylpropionate and ethyl 2-alkyloxy-2-methylpropionate (eg, methyl 2-methoxy-2-methylpropionate, ethyl 2-ethoxy-2-methylpropionate, etc.), methyl pyruvate, pyruvin Suitable examples include ethyl acid, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, methyl 2-oxobutate, ethyl 2-oxobutate, ethyl hexanoate, ethyl heptate, dimethyl malonate, diethyl malonate and the like. ..
 エーテル類として、例えば、ジエチレングリコールジメチルエーテル、テトラヒドロフラン、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、メチルセロソルブアセテート、エチルセロソルブアセテート、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノブチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテルアセテート、プロピレングリコールモノエチルエーテルアセテート、エチレングリコールモノブチルエーテル、エチレングリコールモノブチルエーテルアセテート、ジエチレングリコールエチルメチルエーテル、プロピレングリコールモノプロピルエーテルアセテート等が好適なものとして挙げられる。 Examples of ethers include diethylene glycol dimethyl ether, tetrahydrofuran, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, methyl cellosolve acetate, ethyl cellosolve acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, and propylene glycol. Suitable examples include monomethyl ether acetate, propylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, ethylene glycol monobutyl ether acetate, diethylene glycol ethyl methyl ether, and propylene glycol monopropyl ether acetate.
 ケトン類として、例えば、メチルエチルケトン、シクロヘキサノン、シクロペンタノン、2-ヘプタノン、3-ヘプタノン、3-メチルシクロヘキサノン、レボグルコセノン、ジヒドロレボグルコセノン等が好適なものとして挙げられる。 As the ketones, for example, methyl ethyl ketone, cyclohexanone, cyclopentanone, 2-heptanone, 3-heptanone, 3-methylcyclohexanone, levoglucosenone, dihydrolevoglucosenone and the like are preferable.
 環状炭化水素類として、例えば、トルエン、キシレン、アニソール等の芳香族炭化水素類、リモネン等の環式テルペン類が好適なものとして挙げられる。 As the cyclic hydrocarbons, for example, aromatic hydrocarbons such as toluene, xylene and anisole, and cyclic terpenes such as limonene are preferable.
 スルホキシド類として、例えば、ジメチルスルホキシドが好適なものとして挙げられる。 As sulfoxides, for example, dimethyl sulfoxide is preferable.
 アミド類として、N-メチル-2-ピロリドン、N-エチル-2-ピロリドン、N,N-ジメチルアセトアミド、N,N-ジメチルホルムアミド、N,N-ジメチルイソブチルアミド、3-メトキシ-N,N-ジメチルプロピオンアミド、3-ブトキシ-N,N-ジメチルプロピオンアミド、N-ホルミルモルホリン、N-アセチルモルホリン等が好適なものとして挙げられる。 As amides, N-methyl-2-pyrrolidone, N-ethyl-2-pyrrolidone, N, N-dimethylacetamide, N, N-dimethylformamide, N, N-dimethylisobutyramide, 3-methoxy-N, N- Suitable examples include dimethylpropionamide, 3-butoxy-N, N-dimethylpropionamide, N-formylmorpholine, N-acetylmorpholine and the like.
 ウレア類として、N,N,N’,N’-テトラメチルウレア、1,3-ジメチル-2-イミダゾリジノン等が好適なものとして挙げられる。 As ureas, N, N, N', N'-tetramethylurea, 1,3-dimethyl-2-imidazolidinone and the like are preferable.
 アルコール類として、メタノール、エタノール、1-プロパノール、2-プロパノール、1-ブタノール、1-ペンタノール、1-ヘキサノール、ベンジルアルコール、エチレングリコールモノメチルエーテル、1-メトキシ-2-プロパノール、2-エトキシエタノール、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノヘキシルエーテル、トリエチレングリコールモノメチルエーテル、プロピレングリコールモノエチルエーテル、プロピレングリコールモノメチルエーテル、ポリエチレングリコールモノメチルエーテル、ポリプロピレングリコール、テトラエチレングリコール、エチレングリコールモノブチルエーテル、エチレングリコールモノベンジルエーテル、エチレングリコールモノフェニルエーテル、メチルフェニルカルビノール、n-アミルアルコール、メチルアミルアルコール、および、ダイアセトンアルコール等が挙げられる。 Alcohols include methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 1-pentanol, 1-hexanol, benzyl alcohol, ethylene glycol monomethyl ether, 1-methoxy-2-propanol, 2-ethoxyethanol, Diethylene glycol monoethyl ether, diethylene glycol monohexyl ether, triethylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monomethyl ether, polyethylene glycol monomethyl ether, polypropylene glycol, tetraethylene glycol, ethylene glycol monobutyl ether, ethylene glycol monobenzyl ether, Examples thereof include ethylene glycol monophenyl ether, methylphenyl carbinol, n-amyl alcohol, methyl amyl alcohol, and diacetone alcohol.
 溶剤は、塗布面性状の改良などの観点から、2種以上を混合する形態も好ましい。 The solvent is preferably a mixture of two or more types from the viewpoint of improving the properties of the coated surface.
 本発明では、3-エトキシプロピオン酸メチル、3-エトキシプロピオン酸エチル、エチルセロソルブアセテート、乳酸エチル、ジエチレングリコールジメチルエーテル、酢酸ブチル、3-メトキシプロピオン酸メチル、2-ヘプタノン、シクロヘキサノン、シクロペンタノン、γ-ブチロラクトン、ジメチルスルホキシド、エチルカルビトールアセテート、ブチルカルビトールアセテート、N-メチル-2-ピロリドン、プロピレングリコールメチルエーテル、及びプロピレングリコールメチルエーテルアセテートから選択される1種の溶剤、又は、2種以上で構成される混合溶剤が好ましい。ジメチルスルホキシドとγ-ブチロラクトンとの併用が特に好ましい。また、N-メチル-2-ピロリドンと乳酸エチル、N-メチル-2-ピロリドンと乳酸エチル、ジアセトンアルコールと乳酸エチル、シクロペンタノンとγ-ブチロラクトンの組み合わせも好ましい。 In the present invention, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, ethyl cellosolve acetate, ethyl lactate, diethylene glycol dimethyl ether, butyl acetate, methyl 3-methoxypropionate, 2-heptanone, cyclohexanone, cyclopentanone, γ- Consists of one solvent selected from butyrolactone, dimethyl sulfoxide, ethyl carbitol acetate, butyl carbitol acetate, N-methyl-2-pyrrolidone, propylene glycol methyl ether, and propylene glycol methyl ether acetate, or two or more. The mixed solvent to be mixed is preferable. The combined use of dimethyl sulfoxide and γ-butyrolactone is particularly preferred. Further, a combination of N-methyl-2-pyrrolidone and ethyl lactate, N-methyl-2-pyrrolidone and ethyl lactate, diacetone alcohol and ethyl lactate, cyclopentanone and γ-butyrolactone is also preferable.
 溶剤の含有量は、塗布性の観点から、本発明の硬化性樹脂組成物の全固形分濃度が5~80質量%になる量とすることが好ましく、5~75質量%となる量にすることがより好ましく、10~70質量%となる量にすることが更に好ましく、40~70質量%となるようにすることが一層好ましい。溶剤含有量は、塗膜の所望の厚さと塗布方法に応じて調節すればよい。 From the viewpoint of coatability, the solvent content is preferably such that the total solid content concentration of the curable resin composition of the present invention is 5 to 80% by mass, and is preferably 5 to 75% by mass. It is more preferable that the amount is 10 to 70% by mass, and more preferably 40 to 70% by mass. The solvent content may be adjusted according to the desired thickness of the coating film and the coating method.
 溶剤は1種のみ含有していてもよいし、2種以上含有していてもよい。溶剤を2種以上含有する場合は、その合計が上記範囲であることが好ましい。 The solvent may contain only one type, or may contain two or more types. When two or more kinds of solvents are contained, the total is preferably in the above range.
<感光剤>
 本発明の組成物は、感光剤を含むことが好ましい。
 感光剤には、上述の有機金属錯体であって、光ラジカル重合開始能を有する化合物は含まれないものとする。
 本発明の組成物は、光重合開始剤を含むことが好ましい。
<Photosensitizer>
The composition of the present invention preferably contains a photosensitizer.
It is assumed that the photosensitizer does not contain the above-mentioned organometallic complex and a compound having a photoradical polymerization initiation ability.
The composition of the present invention preferably contains a photopolymerization initiator.
〔光重合開始剤〕
 本発明の組成物は、感光剤として、光重合開始剤を含むことが好ましい。
 光重合開始剤は、光ラジカル重合開始剤であることが好ましい。光ラジカル重合開始剤としては、特に制限はなく、公知の光ラジカル重合開始剤の中から適宜選択することができる。例えば、紫外線領域から可視領域の光線に対して感光性を有する光ラジカル重合開始剤が好ましい。また、光励起された増感剤と何らかの作用を生じ、活性ラジカルを生成する活性剤であってもよい。
[Photopolymerization initiator]
The composition of the present invention preferably contains a photopolymerization initiator as the photosensitizer.
The photopolymerization initiator is preferably a photoradical polymerization initiator. The photoradical polymerization initiator is not particularly limited and may be appropriately selected from known photoradical polymerization initiators. For example, a photoradical polymerization initiator having photosensitivity to light rays in the ultraviolet region to the visible region is preferable. Further, it may be an activator that produces an active radical by causing some action with the photoexcited sensitizer.
 本発明において、有機金属錯体に該当する化合物は、感光剤及び光ラジカル重合開始剤には該当しないものとする。 In the present invention, the compound corresponding to the organometallic complex does not correspond to the photosensitizer and the photoradical polymerization initiator.
 有機金属錯体が光ラジカル重合開始能を有する場合、本発明の組成物は、上記有機金属錯体以外のラジカル重合開始剤を実質的に含まないことも好ましい。上記有機金属錯体以外のラジカル重合開始剤を実質的に含まないとは、本発明の組成物において、上記有機金属錯体以外のラジカル重合開始剤の含有量が、上記有機金属錯体の全質量に対し、5質量%以下であることをいい、3質量%以下が好ましく、1質量%以下がより好ましく、0.1質量%が更に好ましい。
 また、本発明の組成物が、ラジカル重合開始能を有する有機金属錯体を含む場合、本発明の組成物が、上記有機金属錯体と、光ラジカル重合開始剤とを含むことも好ましい。このような態様によれば、上述のように現像残渣の発生、パターンの断線などが抑制され、かつ、露光感度も向上できる。
 本発明の組成物が、光ラジカル重合開始能を有しない有機金属錯体を含む場合、本発明の組成物は、光ラジカル重合開始剤を含むことが好ましい。本発明の組成物は特定樹脂を含むため、有機金属錯体の凝集が抑制されると考えられる。光ラジカル重合開始能を有しない有機金属錯体の凝集が抑制されることにより、凝集による局所的な膜の可塑性の増大が抑制され、凝集部位における局所的な重合度の増大も抑制されると推測される。その結果、膜の部位による感度のばらつきの発生が抑制され、解像度が向上すると推測される。
 本発明の組成物が、有機金属錯体と光ラジカル重合開始剤とを含む場合、有機金属錯体と光ラジカル重合開始剤の合計含有量に対する有機金属錯体の含有量は、20~80質量%であることが好ましく、30~70質量%であることがより好ましい。
 また、上記光ラジカル重合開始剤としては、後述のオキシム化合物が好ましい。
When the organometallic complex has a photoradical polymerization initiating ability, it is also preferable that the composition of the present invention does not substantially contain a radical polymerization initiator other than the above-mentioned organometallic complex. The fact that the composition of the present invention does not substantially contain a radical polymerization initiator other than the organometallic complex means that the content of the radical polymerization initiator other than the organometallic complex is based on the total mass of the organometallic complex. It is said that it is 5% by mass or less, preferably 3% by mass or less, more preferably 1% by mass or less, and further preferably 0.1% by mass.
When the composition of the present invention contains an organometallic complex having a radical polymerization initiatoring ability, it is also preferable that the composition of the present invention contains the above-mentioned organometallic complex and a photoradical polymerization initiator. According to such an aspect, as described above, the generation of development residue, the disconnection of the pattern, and the like can be suppressed, and the exposure sensitivity can be improved.
When the composition of the present invention contains an organometallic complex having no photoradical polymerization initiator ability, the composition of the present invention preferably contains a photoradical polymerization initiator. Since the composition of the present invention contains a specific resin, it is considered that aggregation of the organometallic complex is suppressed. It is speculated that by suppressing the aggregation of organometallic complexes that do not have the ability to initiate photoradical polymerization, the local increase in plasticity of the film due to aggregation is suppressed, and the local increase in degree of polymerization at the aggregation site is also suppressed. Will be done. As a result, it is presumed that the occurrence of variation in sensitivity depending on the part of the film is suppressed and the resolution is improved.
When the composition of the present invention contains an organometallic complex and a photoradical polymerization initiator, the content of the organometallic complex with respect to the total content of the organometallic complex and the photoradical polymerization initiator is 20 to 80% by mass. It is preferably 30 to 70% by mass, and more preferably 30 to 70% by mass.
Further, as the photoradical polymerization initiator, an oxime compound described later is preferable.
 光ラジカル重合開始剤は、約300~800nm(好ましくは330~500nm)の範囲内で少なくとも約50L・mol-1・cm-1のモル吸光係数を有する化合物を、少なくとも1種含有していることが好ましい。化合物のモル吸光係数は、公知の方法を用いて測定することができる。例えば、紫外可視分光光度計(Varian社製Cary-5 spectrophotometer)にて、酢酸エチル溶剤を用い、0.01g/Lの濃度で測定することが好ましい。 The photoradical polymerization initiator contains at least one compound having a molar extinction coefficient of at least about 50 L · mol -1 · cm -1 within the range of about 300 to 800 nm (preferably 330 to 500 nm). Is preferable. The molar extinction coefficient of a compound can be measured using a known method. For example, it is preferable to measure at a concentration of 0.01 g / L using an ethyl acetate solvent with an ultraviolet-visible spectrophotometer (Cary-5 spectrophotometer manufactured by Varian).
 光ラジカル重合開始剤としては、公知の化合物を任意に使用できる。例えば、ハロゲン化炭化水素誘導体(例えば、トリアジン骨格を有する化合物、オキサジアゾール骨格を有する化合物、トリハロメチル基を有する化合物など)、アシルホスフィンオキサイド等のアシルホスフィン化合物、ヘキサアリールビイミダゾール、オキシム誘導体等のオキシム化合物、有機過酸化物、チオ化合物、ケトン化合物、芳香族オニウム塩、ケトオキシムエーテル、アミノアセトフェノン化合物、ヒドロキシアセトフェノン、アゾ系化合物、アジド化合物、有機ホウ素化合物、などが挙げられる。これらの詳細については、特開2016-027357号公報の段落0165~0182、国際公開第2015/199219号の段落0138~0151の記載を参酌でき、この内容は本明細書に組み込まれる。 A known compound can be arbitrarily used as the photoradical polymerization initiator. For example, halogenated hydrocarbon derivatives (for example, compounds having a triazine skeleton, compounds having an oxadiazole skeleton, compounds having a trihalomethyl group, etc.), acylphosphine compounds such as acylphosphine oxide, hexaarylbiimidazole, oxime derivatives and the like. Oxime compounds, organic peroxides, thio compounds, ketone compounds, aromatic onium salts, ketooxime ethers, aminoacetophenone compounds, hydroxyacetophenones, azo compounds, azide compounds, organic boron compounds, and the like. For details thereof, the description of paragraphs 0165 to 0182 of JP2016-027357 and paragraphs 0138 to 0151 of International Publication No. 2015/199219 can be referred to, and the contents thereof are incorporated in the present specification.
 ケトン化合物としては、例えば、特開2015-087611号公報の段落0087に記載の化合物が例示され、この内容は本明細書に組み込まれる。市販品では、カヤキュアーDETX(日本化薬(株)製)も好適に用いられる。 Examples of the ketone compound include the compounds described in paragraph 0087 of JP-A-2015-087611, the contents of which are incorporated in the present specification. As a commercially available product, KayaCure DETX (manufactured by Nippon Kayaku Co., Ltd.) is also preferably used.
 本発明の一実施態様において、光ラジカル重合開始剤としては、ヒドロキシアセトフェノン化合物、アミノアセトフェノン化合物、及び、アシルホスフィン化合物を好適に用いることができる。より具体的には、例えば、特開平10-291969号公報に記載のアミノアセトフェノン系開始剤、特許第4225898号に記載のアシルホスフィンオキシド系開始剤を用いることができる。 In one embodiment of the present invention, a hydroxyacetophenone compound, an aminoacetophenone compound, and an acylphosphine compound can be preferably used as the photoradical polymerization initiator. More specifically, for example, the aminoacetophenone-based initiator described in JP-A-10-291969 and the acylphosphine oxide-based initiator described in Japanese Patent No. 4225898 can be used.
 ヒドロキシアセトフェノン系開始剤としては、IRGACURE 184(IRGACUREは登録商標)、DAROCUR 1173、IRGACURE 500、IRGACURE-2959、IRGACURE 127(商品名:いずれもBASF社製)を用いることができる。 As the hydroxyacetophenone-based initiator, IRGACURE 184 (IRGACURE is a registered trademark), DAROCUR 1173, IRGACURE 500, IRGACURE-2959, and IRGACURE 127 (trade names: all manufactured by BASF) can be used.
 アミノアセトフェノン系開始剤としては、市販品であるIRGACURE 907、IRGACURE 369、及び、IRGACURE 379(商品名:いずれもBASF社製)を用いることができる。 As the aminoacetophenone-based initiator, commercially available products IRGACURE 907, IRGACURE 369, and IRGACURE 379 (trade names: all manufactured by BASF) can be used.
 アミノアセトフェノン系開始剤として、365nm又は405nm等の波長光源に吸収極大波長がマッチングされた特開2009-191179号公報に記載の化合物も用いることができる。 As the aminoacetophenone-based initiator, the compound described in JP-A-2009-191179, in which the absorption maximum wavelength is matched with a wavelength light source such as 365 nm or 405 nm, can also be used.
 アシルホスフィン系開始剤としては、2,4,6-トリメチルベンゾイル-ジフェニル-ホスフィンオキサイドなどが挙げられる。また、市販品であるIRGACURE-819やIRGACURE-TPO(商品名:いずれもBASF社製)を用いることができる。 Examples of the acylphosphine-based initiator include 2,4,6-trimethylbenzoyl-diphenyl-phosphine oxide. Further, commercially available products such as IRGACURE-819 and IRGACURE-TPO (trade names: both manufactured by BASF) can be used.
 光ラジカル重合開始剤として、より好ましくはオキシム化合物が挙げられる。オキシム化合物を用いることにより、露光ラチチュードをより効果的に向上させることが可能になる。オキシム化合物は、露光ラチチュード(露光マージン)が広く、かつ、光硬化促進剤としても働くため、特に好ましい。 The photoradical polymerization initiator is more preferably an oxime compound. By using the oxime compound, the exposure latitude can be improved more effectively. The oxime compound is particularly preferable because it has a wide exposure latitude (exposure margin) and also acts as a photocuring accelerator.
 オキシム化合物の具体例としては、特開2001-233842号公報に記載の化合物、特開2000-080068号公報に記載の化合物、特開2006-342166号公報に記載の化合物を用いることができる。 As specific examples of the oxime compound, the compound described in JP-A-2001-233842, the compound described in JP-A-2000-080068, and the compound described in JP-A-2006-342166 can be used.
 好ましいオキシム化合物としては、例えば、下記の構造の化合物や、3-ベンゾイルオキシイミノブタン-2-オン、3-アセトキシイミノブタン-2-オン、3-プロピオニルオキシイミノブタン-2-オン、2-アセトキシイミノペンタン-3-オン、2-アセトキシイミノ-1-フェニルプロパン-1-オン、2-ベンゾイルオキシイミノ-1-フェニルプロパン-1-オン、3-(4-トルエンスルホニルオキシ)イミノブタン-2-オン、及び2-エトキシカルボニルオキシイミノ-1-フェニルプロパン-1-オンなどが挙げられる。本発明の組成物においては、特に光ラジカル重合開始剤としてオキシム化合物(オキシム系の光重合開始剤)を用いることが好ましい。オキシム系の光重合開始剤は、分子内に >C=N-O-C(=O)- の連結基を有する。 Preferred oxime compounds include, for example, compounds having the following structures, 3-benzoyloxyiminobutane-2-one, 3-acetoxyiminobutane-2-one, 3-propionyloxyiminobutane-2-one, 2-acetoxy. Iminopentan-3-one, 2-acetoxyimino-1-phenylpropan-1-one, 2-benzoyloxyimino-1-phenylpropane-1-one, 3- (4-toluenesulfonyloxy) iminobutane-2-one , And 2-ethoxycarbonyloxyimino-1-phenylpropan-1-one and the like. In the composition of the present invention, it is particularly preferable to use an oxime compound (oxime-based photopolymerization initiator) as the photoradical polymerization initiator. The oxime-based photopolymerization initiator has a linking group of> C = NOC (= O)-in the molecule.
Figure JPOXMLDOC01-appb-C000025
Figure JPOXMLDOC01-appb-C000025

 市販品ではIRGACURE OXE 01、IRGACURE OXE 02、IRGACURE OXE 03、IRGACURE OXE 04(以上、BASF社製)、アデカオプトマーN-1919((株)ADEKA製、特開2012-014052号公報に記載の光ラジカル重合開始剤2)も好適に用いられる。また、TR-PBG-304(常州強力電子新材料有限公司製)、アデカアークルズNCI-831及びアデカアークルズNCI-930((株)ADEKA製)も用いることができる。また、DFI-091(ダイトーケミックス(株)製)を用いることができる。また、下記の構造のオキシム化合物を用いることもできる。 

Figure JPOXMLDOC01-appb-C000026

Commercially available products include IRGACURE OXE 01, IRGACURE OXE 02, IRGACURE OXE 03, IRGACURE OXE 04 (above, manufactured by BASF), ADEKA PUTMER N-1919 (manufactured by ADEKA Corporation, Japanese Patent Application Laid-Open No. 2012-014052). A radical polymerization initiator 2) is also preferably used. Further, TR-PBG-304 (manufactured by Changshu Powerful Electronics New Materials Co., Ltd.), ADEKA ARCLUDS NCI-831 and ADEKA ARCULDS NCI-930 (manufactured by ADEKA Corporation) can also be used. Further, DFI-091 (manufactured by Daito Chemix Co., Ltd.) can be used. Further, an oxime compound having the following structure can also be used.

Figure JPOXMLDOC01-appb-C000026
 光重合開始剤としては、フルオレン環を有するオキシム化合物を用いることもできる。フルオレン環を有するオキシム化合物の具体例としては、特開2014-137466号公報に記載の化合物、特許第6636081号に記載の化合物が挙げられる。 As the photopolymerization initiator, an oxime compound having a fluorene ring can also be used. Specific examples of the oxime compound having a fluorene ring include the compound described in JP-A-2014-137466 and the compound described in Japanese Patent No. 6636081.
 光重合開始剤としては、カルバゾール環の少なくとも1つのベンゼン環がナフタレン環となった骨格を有するオキシム化合物を用いることもできる。そのようなオキシム化合物の具体例としては、国際公開第2013/083505号に記載の化合物が挙げられる。 As the photopolymerization initiator, an oxime compound having a skeleton in which at least one benzene ring of the carbazole ring is a naphthalene ring can also be used. Specific examples of such an oxime compound include the compounds described in International Publication No. 2013/083505.
 また、フッ素原子を有するオキシム化合物を用いることも可能である。そのようなオキシム化合物の具体例としては、特開2010-262028号公報に記載されている化合物、特表2014-500852号公報の段落0345に記載されている化合物24、36~40、特開2013-164471号公報の段落0101に記載されている化合物(C-3)などが挙げられる。 It is also possible to use an oxime compound having a fluorine atom. Specific examples of such an oxime compound include compounds described in JP-A-2010-262028, compounds 24, 36-40 described in paragraph 0345 of JP-A-2014-500852, and JP-A-2013. Examples thereof include the compound (C-3) described in paragraph 0101 of JP-A-164471.
 最も好ましいオキシム化合物としては、特開2007-269779号公報に示される特定置換基を有するオキシム化合物や、特開2009-191061号公報に示されるチオアリール基を有するオキシム化合物などが挙げられる。 Examples of the most preferable oxime compound include an oxime compound having a specific substituent shown in JP-A-2007-269779 and an oxime compound having a thioaryl group shown in JP-A-2009-191061.
 光ラジカル重合開始剤は、露光感度の観点から、トリハロメチルトリアジン化合物、ベンジルジメチルケタール化合物、α-ヒドロキシケトン化合物、α-アミノケトン化合物、アシルホスフィン化合物、ホスフィンオキサイド化合物、メタロセン化合物、オキシム化合物、トリアリールイミダゾールダイマー、オニウム塩化合物、ベンゾチアゾール化合物、ベンゾフェノン化合物、アセトフェノン化合物及びその誘導体、シクロペンタジエン-ベンゼン-鉄錯体及びその塩、ハロメチルオキサジアゾール化合物、3-アリール置換クマリン化合物よりなる群から選択される化合物が好ましい。 From the viewpoint of exposure sensitivity, the photoradical polymerization initiator is a trihalomethyltriazine compound, a benzyl dimethyl ketal compound, an α-hydroxyketone compound, an α-aminoketone compound, an acylphosphine compound, a phosphine oxide compound, a metallocene compound, an oxime compound, or a triaryl. Selected from the group consisting of imidazole dimer, onium salt compound, benzothiazole compound, benzophenone compound, acetophenone compound and its derivative, cyclopentadiene-benzene-iron complex and its salt, halomethyloxaziazole compound, 3-aryl substituted coumarin compound. Compounds are preferred.
 更に好ましい光ラジカル重合開始剤は、トリハロメチルトリアジン化合物、α-アミノケトン化合物、アシルホスフィン化合物、ホスフィンオキサイド化合物、メタロセン化合物、オキシム化合物、トリアリールイミダゾールダイマー、オニウム塩化合物、ベンゾフェノン化合物、アセトフェノン化合物であり、トリハロメチルトリアジン化合物、α-アミノケトン化合物、オキシム化合物、トリアリールイミダゾールダイマー、ベンゾフェノン化合物よりなる群から選ばれる少なくとも1種の化合物が一層好ましく、メタロセン化合物又はオキシム化合物を用いるのがより一層好ましく、オキシム化合物が更に一層好ましい。 More preferable photoradical polymerization initiators are trihalomethyltriazine compounds, α-aminoketone compounds, acylphosphine compounds, phosphine oxide compounds, metallocene compounds, oxime compounds, triarylimidazole dimers, onium salt compounds, benzophenone compounds and acetophenone compounds. At least one compound selected from the group consisting of trihalomethyltriazine compounds, α-aminoketone compounds, oxime compounds, triarylimidazole dimers, and benzophenone compounds is more preferable, and metallocene compounds or oxime compounds are even more preferable, and oxime compounds are even more preferable. Is even more preferable.
 また、光ラジカル重合開始剤は、ベンゾフェノン、N,N’-テトラメチル-4,4’-ジアミノベンゾフェノン(ミヒラーケトン)等のN,N’-テトラアルキル-4,4’-ジアミノベンゾフェノン、2-ベンジル-2-ジメチルアミノ-1-(4-モルホリノフェニル)-ブタノン-1,2-メチル-1-[4-(メチルチオ)フェニル]-2-モルホリノ-プロパノン-1等の芳香族ケトン、アルキルアントラキノン等の芳香環と縮環したキノン類、ベンゾインアルキルエーテル等のベンゾインエーテル化合物、ベンゾイン、アルキルベンゾイン等のベンゾイン化合物、ベンジルジメチルケタール等のベンジル誘導体などを用いることもできる。また、下記式(I)で表される化合物を用いることもできる。 The photoradical polymerization initiator is N, N'-tetraalkyl-4,4'-diaminobenzophenone, 2-benzyl such as benzophenone, N, N'-tetramethyl-4,4'-diaminobenzophenone (Michler ketone). -2-Dimethylamino-1- (4-morpholinophenyl) -butanone-1,2-methyl-1- [4- (methylthio) phenyl] -2-morpholino-propanone-1 and other aromatic ketones, alkylanthraquinone, etc. It is also possible to use quinones fused to the aromatic ring of the above, benzoin ether compounds such as benzoin alkyl ether, benzoin compounds such as benzoin and alkyl benzoin, and benzyl derivatives such as benzyl dimethyl ketal. Further, a compound represented by the following formula (I) can also be used.
Figure JPOXMLDOC01-appb-C000027
Figure JPOXMLDOC01-appb-C000027
 式(I)中、RI00は、炭素数1~20のアルキル基、1個以上の酸素原子によって中断された炭素数2~20のアルキル基、炭素数1~12のアルコキシ基、フェニル基、炭素数1~20のアルキル基、炭素数1~12のアルコキシ基、ハロゲン原子、シクロペンチル基、シクロヘキシル基、炭素数2~12のアルケニル基、1個以上の酸素原子によって中断された炭素数2~18のアルキル基及び炭素数1~4のアルキル基の少なくとも1つで置換されたフェニル基、又はビフェニルであり、RI01は、式(II)で表される基であるか、RI00と同じ基であり、RI02~RI04は各々独立に炭素数1~12のアルキル、炭素数1~12のアルコキシ基又はハロゲンである。 In formula (I), RI00 is an alkyl group having 1 to 20 carbon atoms, an alkyl group having 2 to 20 carbon atoms interrupted by one or more oxygen atoms, an alkoxy group having 1 to 12 carbon atoms, a phenyl group, and the like. Alkyl group with 1 to 20 carbon atoms, alkoxy group with 1 to 12 carbon atoms, halogen atom, cyclopentyl group, cyclohexyl group, alkenyl group with 2 to 12 carbon atoms, carbon number 2 to 2 interrupted by one or more oxygen atoms 18 alkyl group and at least one substituted phenyl group of the alkyl group having 1 to 4 carbon atoms, or biphenyl, R I01 is a group represented by formula (II), the same as R I00 The groups, R I02 to R I04, are independently alkyls having 1 to 12 carbon atoms, alkoxy groups having 1 to 12 carbon atoms, or halogens, respectively.
Figure JPOXMLDOC01-appb-C000028
Figure JPOXMLDOC01-appb-C000028
 式中、RI05~RI07は、上記式(I)のRI02~RI04と同じである。 In the formula, R I05 to R I07 are the same as R I 02 to R I 04 of the above formula (I).
 また、光ラジカル重合開始剤は、国際公開第2015/125469号の段落0048~0055に記載の化合物を用いることもできる。 Further, as the photoradical polymerization initiator, the compounds described in paragraphs 0048 to 0055 of International Publication No. 2015/1254669 can also be used.
 光重合開始剤を含む場合、その含有量は、本発明の組成物の全固形分に対し0.1~30質量%であることが好ましく、より好ましくは0.1~20質量%であり、更に好ましくは0.5~15質量%であり、一層好ましくは1.0~10質量%である。光重合開始剤は1種のみ含有していてもよいし、2種以上含有していてもよい。光重合開始剤を2種以上含有する場合は、合計量が上記範囲であることが好ましい。 When the photopolymerization initiator is contained, the content thereof is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the composition of the present invention. It is more preferably 0.5 to 15% by mass, and even more preferably 1.0 to 10% by mass. Only one type of photopolymerization initiator may be contained, or two or more types may be contained. When two or more kinds of photopolymerization initiators are contained, the total amount is preferably in the above range.
〔光酸発生剤〕
 また、本発明の組成物は、感光剤として、光酸発生剤を含むことも好ましい。
 光酸発生剤を含有することで、例えば、感光膜の露光部に酸が発生して、上記露光部の現像液(例えば、アルカリ水溶液)に対する溶解性が増大し、露光部が現像液により除去されるポジ型のパターンを得ることができる。
 また、組成物が、光酸発生剤と、後述するラジカル架橋剤以外の架橋剤とを含有することにより、例えば、露光部に発生した酸により上記架橋剤の架橋反応が促進され、露光部が非露光部よりも現像液により除去されにくくなる態様とすることもできる。このような態様によれば、ネガ型のパターンを得ることができる。
[Photoacid generator]
Further, the composition of the present invention preferably contains a photoacid generator as a photosensitizer.
By containing the photoacid generator, for example, acid is generated in the exposed part of the photosensitive film, the solubility of the exposed part in the developing solution (for example, an alkaline aqueous solution) is increased, and the exposed part is removed by the developing solution. A positive pattern can be obtained.
Further, when the composition contains a photoacid generator and a cross-linking agent other than the radical cross-linking agent described later, for example, the cross-linking reaction of the cross-linking agent is promoted by the acid generated in the exposed part, and the exposed part becomes It is also possible to make it more difficult to be removed by the developing solution than the non-exposed portion. According to such an aspect, a negative type pattern can be obtained.
 光酸発生剤としては、露光により酸を発生するものであれば特に限定されるものではないが、キノンジアジド化合物、ジアゾニウム塩、ホスホニウム塩、スルホニウム塩、ヨードニウム塩などのオニウム塩化合物、イミドスルホネート、オキシムスルホネート、ジアゾジスルホン、ジスルホン、o-ニトロベンジルスルホネート等のスルホネート化合物などを挙げることができる。 The photoacid generator is not particularly limited as long as it generates an acid by exposure, but is an onium salt compound such as a quinonediazide compound, a diazonium salt, a phosphonium salt, a sulfonium salt, or an iodonium salt, an imide sulfonate, and an oxime. Examples thereof include sulfonate compounds such as sulfonate, diazodisulfone, disulfone, and o-nitrobenzyl sulfonate.
 キノンジアジド化合物としては、ポリヒドロキシ化合物にキノンジアジドのスルホン酸がエステルで結合したもの、ポリアミノ化合物にキノンジアジドのスルホン酸がスルホンアミド結合したもの、ポリヒドロキシポリアミノ化合物にキノンジアジドのスルホン酸がエステル結合及びスルホンアミド結合の少なくとも一方により結合したものなどが挙げられる。本発明においては、例えば、これらポリヒドロキシ化合物やポリアミノ化合物の官能基全体の50モル%以上がキノンジアジドで置換されていることが好ましい。 The quinone diazide compound includes a polyhydroxy compound in which quinone diazide sulfonic acid is ester-bonded, a polyamino compound in which quinone diazide sulfonic acid is conjugated with a sulfonamide, and a polyhydroxypolyamino compound in which quinone diazide sulfonic acid is ester-bonded and a sulfonamide bond. Examples include those bound by at least one of the above. In the present invention, for example, it is preferable that 50 mol% or more of all the functional groups of these polyhydroxy compounds and polyamino compounds are substituted with quinonediazide.
 本発明において、キノンジアジドは5-ナフトキノンジアジドスルホニル基、4-ナフトキノンジアジドスルホニル基のいずれも好ましく用いられる。4-ナフトキノンジアジドスルホニルエステル化合物は水銀灯のi線領域に吸収を持っており、i線露光に適している。5-ナフトキノンジアジドスルホニルエステル化合物は水銀灯のg線領域まで吸収が伸びており、g線露光に適している。本発明においては、露光する波長によって4-ナフトキノンジアジドスルホニルエステル化合物、5-ナフトキノンジアジドスルホニルエステル化合物を選択することが好ましい。また、同一分子中に4-ナフトキノンジアジドスルホニル基、5-ナフトキノンジアジドスルホニル基を有するナフトキノンジアジドスルホニルエステル化合物を含有してもよいし、4-ナフトキノンジアジドスルホニルエステル化合物と5-ナフトキノンジアジドスルホニルエステル化合物を含有してもよい。 In the present invention, as the quinone diazide, either a 5-naphthoquinone diazidosulfonyl group or a 4-naphthoquinone diazidosulfonyl group is preferably used. The 4-naphthoquinone diazidosulfonyl ester compound has absorption in the i-line region of a mercury lamp and is suitable for i-line exposure. The 5-naphthoquinone diazidosulfonyl ester compound has absorption extending to the g-line region of a mercury lamp and is suitable for g-line exposure. In the present invention, it is preferable to select a 4-naphthoquinone diazidosulfonyl ester compound or a 5-naphthoquinone diazidosulfonyl ester compound depending on the wavelength to be exposed. Further, a naphthoquinone diazidosulfonyl ester compound having a 4-naphthoquinone diazidosulfonyl group and a 5-naphthoquinone diazidosulfonyl group may be contained in the same molecule, or a 4-naphthoquinone diazidosulfonyl ester compound and a 5-naphthoquinone diazidosulfonyl ester compound may be contained. It may be contained.
 上記ナフトキノンジアジド化合物は、フェノール性ヒドロキシ基を有する化合物と、キノンジアジドスルホン酸化合物とのエステル化反応によって合成可能であり、公知の方法により合成することができる。これらのナフトキノンジアジド化合物を使用することで解像度、感度、残膜率がより向上する。
 上記ナフトキノンジアジド化合物としては、例えば、1,2-ナフトキノン-2-ジアジド-5-スルホン酸又は1,2-ナフトキノン-2-ジアジド-4-スルホン酸、これらの化合物の塩又はエステル化合物等が挙げられる。
The naphthoquinone diazide compound can be synthesized by an esterification reaction between a compound having a phenolic hydroxy group and a quinone diazido sulfonic acid compound, and can be synthesized by a known method. By using these naphthoquinone diazide compounds, the resolution, sensitivity, and residual film ratio are further improved.
Examples of the naphthoquinone diazide compound include 1,2-naphthoquinone-2-diazide-5-sulfonic acid or 1,2-naphthoquinone-2-diazide-4-sulfonic acid, and salts or ester compounds of these compounds. Be done.
 オニウム塩化合物、又は、スルホネート化合物としては、特開2008-013646号公報の段落0064~0122に記載の化合物等が挙げられる。 Examples of the onium salt compound or the sulfonate compound include the compounds described in paragraphs 0064 to 0122 of JP-A-2008-013646.
 光酸発生剤は、オキシムスルホネート基を含む化合物(以下、単に「オキシムスルホネート化合物」ともいう)であることも好ましい。
 オキシムスルホネート化合物は、オキシムスルホネート基を有していれば特に制限はないが、下記式(OS-1)、後述する式(OS-103)、式(OS-104)、又は、式(OS-105)で表されるオキシムスルホネート化合物であることが好ましい。
The photoacid generator is also preferably a compound containing an oxime sulfonate group (hereinafter, also simply referred to as “oxime sulfonate compound”).
The oxime sulfonate compound is not particularly limited as long as it has an oxime sulfonate group, but the following formula (OS-1), the formula (OS-103) described later, the formula (OS-104), or the formula (OS-) It is preferably an oxime sulfonate compound represented by 105).
Figure JPOXMLDOC01-appb-C000029
Figure JPOXMLDOC01-appb-C000029
 式(OS-1)中、Xは、アルキル基、アルコキシル基、又は、ハロゲン原子を表す。Xが複数存在する場合は、それぞれ同一であってもよいし、異なっていてもよい。上記Xにおけるアルキル基及びアルコキシル基は、置換基を有していてもよい。上記Xにおけるアルキル基としては、炭素数1~4の、直鎖状又は分岐状アルキル基が好ましい。上記Xにおけるアルコキシル基としては、炭素数1~4の直鎖状又は分岐状アルコキシル基が好ましい。上記Xにおけるハロゲン原子としては、塩素原子又はフッ素原子が好ましい。
 式(OS-1)中、m3は、0~3の整数を表し、0又は1が好ましい。m3が2又は3であるとき、複数のXは同一でも異なっていてもよい。
 式(OS-1)中、R34は、アルキル基又はアリール基を表し、炭素数1~10のアルキル基、炭素数1~10のアルコキシル基、炭素数1~5のハロゲン化アルキル基、炭素数1~5のハロゲン化アルコキシル基、Wで置換されていてもよいフェニル基、Wで置換されていてもよいナフチル基又はWで置換されていてもよいアントラニル基であることが好ましい。Wは、ハロゲン原子、シアノ基、ニトロ基、炭素数1~10のアルキル基、炭素数1~10のアルコキシル基、炭素数1~5のハロゲン化アルキル基又は炭素数1~5のハロゲン化アルコキシル基、炭素数6~20のアリール基、炭素数6~20のハロゲン化アリール基を表す。
Wherein (OS-1), X 3 is an alkyl group, an alkoxyl group, or a halogen atom. If X 3 there are a plurality, each be the same or may be different. Alkyl group and an alkoxyl group represented by X 3 may have a substituent. The alkyl group in the above X 3, 1 to 4 carbon atoms, straight-chain or branched alkyl group is preferable. The alkoxyl group represented by X 3, preferably a linear or branched alkoxy group having 1 to 4 carbon atoms. The halogen atom in the X 3, a chlorine atom or a fluorine atom is preferable.
In the formula (OS-1), m3 represents an integer of 0 to 3, and 0 or 1 is preferable. When m3 is 2 or 3, a plurality of X 3 may be the same or different.
In the formula (OS-1), R 34 represents an alkyl group or an aryl group, which is an alkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 5 carbon atoms, and carbon. It is preferably an alkoxyl group of numbers 1 to 5, a phenyl group optionally substituted with W, a naphthyl group optionally substituted with W or an anthranyl group optionally substituted with W. W is a halogen atom, a cyano group, a nitro group, an alkyl group having 1 to 10 carbon atoms, an alkoxyl group having 1 to 10 carbon atoms, an alkyl halide group having 1 to 5 carbon atoms or an alkoxyl halide having 1 to 5 carbon atoms. It represents a group, an aryl group having 6 to 20 carbon atoms, and an aryl halide group having 6 to 20 carbon atoms.
 式(OS-1)中、m3が3であり、Xがメチル基であり、Xの置換位置がオルト位であり、R34が炭素数1~10の直鎖状アルキル基、7,7-ジメチル-2-オキソノルボルニルメチル基、又は、p-トリル基である化合物が特に好ましい。 Wherein (OS-1), m3 is 3, X 3 is a methyl group, the substitution position of X 3 is ortho, R 34 is a linear alkyl group having 1 to 10 carbon atoms, 7, A compound having a 7-dimethyl-2-oxonorbornylmethyl group or a p-tolyl group is particularly preferable.
 式(OS-1)で表されるオキシムスルホネート化合物の具体例としては、特開2011-209692号公報の段落番号0064~0068、特開2015-194674号公報の段落番号0158~0167に記載された以下の化合物が例示され、これらの内容は本明細書に組み込まれる。 Specific examples of the oxime sulfonate compound represented by the formula (OS-1) are described in paragraphs 0064 to 0068 of JP2011-209692A and paragraph numbers 0158 to 0167 of JP2015-194674A. The following compounds are exemplified and their contents are incorporated herein.
Figure JPOXMLDOC01-appb-C000030
Figure JPOXMLDOC01-appb-C000030
 式(OS-103)~式(OS-105)中、Rs1はアルキル基、アリール基又はヘテロアリール基を表し、複数存在する場合のあるRs2はそれぞれ独立に、水素原子、アルキル基、アリール基又はハロゲン原子を表し、複数存在する場合のあるRs6はそれぞれ独立に、ハロゲン原子、アルキル基、アルキルオキシ基、スルホン酸基、アミノスルホニル基又はアルコキシスルホニル基を表し、XsはO又はSを表し、nsは1又は2を表し、msは0~6の整数を表す。
 式(OS-103)~式(OS-105)中、Rs1で表されるアルキル基(炭素数1~30が好ましい)、アリール基(炭素数6~30が好ましい)又はヘテロアリール基(炭素数4~30が好ましい)は、置換基Tを有していてもよい。
In formulas (OS-103) to (OS-105), R s1 represents an alkyl group, an aryl group, or a heteroaryl group, and R s2 , which may be present in a plurality of groups, independently represents a hydrogen atom, an alkyl group, and an aryl. R s6 , which represents a group or a halogen atom and may be present in a plurality, independently represents a halogen atom, an alkyl group, an alkyloxy group, a sulfonic acid group, an aminosulfonyl group or an alkoxysulfonyl group, and Xs represents O or S. Represented, ns represents 1 or 2, ms represents an integer of 0-6.
In formulas (OS-103) to (OS-105), an alkyl group represented by R s1 (preferably having 1 to 30 carbon atoms), an aryl group (preferably having 6 to 30 carbon atoms) or a heteroaryl group (carbon). (Preferably numbers 4 to 30) may have a substituent T.
 式(OS-103)~式(OS-105)中、Rs2は、水素原子、アルキル基(炭素数1~12が好ましい)又はアリール基(炭素数6~30が好ましい)であることが好ましく、水素原子又はアルキル基であることがより好ましい。化合物中に2以上存在する場合のあるRs2のうち、1つ又は2つがアルキル基、アリール基又はハロゲン原子であることが好ましく、1つがアルキル基、アリール基又はハロゲン原子であることがより好ましく、1つがアルキル基であり、かつ残りが水素原子であることが特に好ましい。Rs2で表されるアルキル基又はアリール基は、置換基Tを有していてもよい。
 式(OS-103)、式(OS-104)、又は、式(OS-105)中、XsはO又はSを表し、Oであることが好ましい。上記式(OS-103)~(OS-105)において、Xsを環員として含む環は、5員環又は6員環である。
In formulas (OS-103) to (OS-105), R s2 is preferably a hydrogen atom, an alkyl group (preferably having 1 to 12 carbon atoms) or an aryl group (preferably having 6 to 30 carbon atoms). , Hydrogen atom or alkyl group is more preferable. Of the R s2 that may be present in two or more in the compound, one or two are preferably an alkyl group, an aryl group or a halogen atom, and one is more preferably an alkyl group, an aryl group or a halogen atom. It is particularly preferable that one is an alkyl group and the rest is a hydrogen atom. The alkyl group or aryl group represented by R s2 may have a substituent T.
In the formula (OS-103), the formula (OS-104), or the formula (OS-105), Xs represents O or S, and is preferably O. In the above formulas (OS-103) to (OS-105), the ring containing Xs as a ring member is a 5-membered ring or a 6-membered ring.
 式(OS-103)~式(OS-105)中、nsは1又は2を表し、XsがOである場合、nsは1であることが好ましく、また、XsがSである場合、nsは2であることが好ましい。
 式(OS-103)~式(OS-105)中、Rs6で表されるアルキル基(炭素数1~30が好ましい)及びアルキルオキシ基(炭素数1~30が好ましい)は、置換基を有していてもよい。
 式(OS-103)~式(OS-105)中、msは0~6の整数を表し、0~2の整数であることが好ましく、0又は1であることがより好ましく、0であることが特に好ましい。
In formulas (OS-103) to (OS-105), ns represents 1 or 2, and when Xs is O, ns is preferably 1, and when Xs is S, ns is. It is preferably 2.
In formulas (OS-103) to (OS-105), the alkyl group represented by R s6 (preferably having 1 to 30 carbon atoms) and the alkyloxy group (preferably having 1 to 30 carbon atoms) have substituents. You may have.
In the formulas (OS-103) to (OS-105), ms represents an integer of 0 to 6, preferably an integer of 0 to 2, more preferably 0 or 1, and 0. Is particularly preferable.
 また、上記式(OS-103)で表される化合物は、下記式(OS-106)、式(OS-110)又は式(OS-111)で表される化合物であることが特に好ましく、上記式(OS-104)で表される化合物は、下記式(OS-107)で表される化合物であることが特に好ましく、上記式(OS-105)で表される化合物は、下記式(OS-108)又は式(OS-109)で表される化合物であることが特に好ましい。
Figure JPOXMLDOC01-appb-C000031
The compound represented by the above formula (OS-103) is particularly preferably a compound represented by the following formula (OS-106), formula (OS-110) or formula (OS-111). The compound represented by the formula (OS-104) is particularly preferably a compound represented by the following formula (OS-107), and the compound represented by the above formula (OS-105) is a compound represented by the following formula (OS-105). -108) or a compound represented by the formula (OS-109) is particularly preferable.
Figure JPOXMLDOC01-appb-C000031
 式(OS-106)~式(OS-111)中、Rt1はアルキル基、アリール基又はヘテロアリール基を表し、Rt7は、水素原子又は臭素原子を表し、Rt8は水素原子、炭素数1~8のアルキル基、ハロゲン原子、クロロメチル基、ブロモメチル基、ブロモエチル基、メトキシメチル基、フェニル基又はクロロフェニル基を表し、Rt9は水素原子、ハロゲン原子、メチル基又はメトキシ基を表し、Rt2は水素原子又はメチル基を表す。
 式(OS-106)~式(OS-111)中、Rt7は、水素原子又は臭素原子を表し、水素原子であることが好ましい。
In formulas (OS-106) to (OS-111), R t1 represents an alkyl group, an aryl group or a heteroaryl group, R t7 represents a hydrogen atom or a bromine atom, and R t8 represents a hydrogen atom and the number of carbon atoms. 1 to 8 alkyl groups, halogen atoms, chloromethyl groups, bromomethyl groups, bromoethyl groups, methoxymethyl groups, phenyl groups or chlorophenyl groups, R t9 represents hydrogen atoms, halogen atoms, methyl groups or methoxy groups, and R t2 represents a hydrogen atom or a methyl group.
In formulas (OS-106) to (OS-111), R t7 represents a hydrogen atom or a bromine atom, and is preferably a hydrogen atom.
 式(OS-106)~式(OS-111)中、Rt8は、水素原子、炭素数1~8のアルキル基、ハロゲン原子、クロロメチル基、ブロモメチル基、ブロモエチル基、メトキシメチル基、フェニル基又はクロロフェニル基を表し、炭素数1~8のアルキル基、ハロゲン原子又はフェニル基であることが好ましく、炭素数1~8のアルキル基であることがより好ましく、炭素数1~6のアルキル基であることが更に好ましく、メチル基であることが特に好ましい。 In formulas (OS-106) to (OS-111), R t8 is a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a halogen atom, a chloromethyl group, a bromomethyl group, a bromoethyl group, a methoxymethyl group, or a phenyl group. Alternatively, it represents a chlorophenyl group, preferably an alkyl group having 1 to 8 carbon atoms, a halogen atom or a phenyl group, more preferably an alkyl group having 1 to 8 carbon atoms, and an alkyl group having 1 to 6 carbon atoms. It is more preferable to have a methyl group, and it is particularly preferable to have a methyl group.
 式(OS-106)~式(OS-111)中、Rt9は、水素原子、ハロゲン原子、メチル基又はメトキシ基を表し、水素原子であることが好ましい。
 Rt2は、水素原子又はメチル基を表し、水素原子であることが好ましい。
 また、上記オキシムスルホネート化合物において、オキシムの立体構造(E,Z)については、いずれか一方であっても、混合物であってもよい。
 上記式(OS-103)~式(OS-105)で表されるオキシムスルホネート化合物の具体例としては、特開2011-209692号公報の段落番号0088~0095、特開2015-194674号公報の段落番号0168~0194に記載の化合物が例示され、これらの内容は本明細書に組み込まれる。
In formulas (OS-106) to (OS-111), R t9 represents a hydrogen atom, a halogen atom, a methyl group or a methoxy group, and is preferably a hydrogen atom.
R t2 represents a hydrogen atom or a methyl group, and is preferably a hydrogen atom.
Further, in the above-mentioned oxime sulfonate compound, the three-dimensional structure (E, Z) of the oxime may be either one or a mixture.
Specific examples of the oxime sulfonate compounds represented by the above formulas (OS-103) to (OS-105) include paragraph numbers 008 to 0995 of JP2011-209692A and paragraphs of JP2015-194674A. The compounds of Nos. 0168 to 0194 are exemplified and their contents are incorporated herein.
 オキシムスルホネート基を少なくとも1つを含むオキシムスルホネート化合物の好適な他の態様としては、下記式(OS-101)、式(OS-102)で表される化合物が挙げられる。 Other preferable embodiments of the oxime sulfonate compound containing at least one oxime sulfonate group include compounds represented by the following formulas (OS-101) and (OS-102).
Figure JPOXMLDOC01-appb-C000032
Figure JPOXMLDOC01-appb-C000032
 式(OS-101)又は式(OS-102)中、Ru9は、水素原子、アルキル基、アルケニル基、アルコキシル基、アルコキシカルボニル基、アシル基、カルバモイル基、スルファモイル基、スルホ基、シアノ基、アリール基又はヘテロアリール基を表す。Ru9がシアノ基又はアリール基である態様がより好ましく、Ru9がシアノ基、フェニル基又はナフチル基である態様が更に好ましい。
 式(OS-101)又は式(OS-102)中、Ru2aは、アルキル基又はアリール基を表す。
 式(OS-101)又は式(OS-102)中、Xuは、-O-、-S-、-NH-、-NRu5-、-CH-、-CRu6H-又はCRu6u7-を表し、Ru5~Ru7はそれぞれ独立に、アルキル基又はアリール基を表す。
In formula (OS-101) or formula (OS-102), Ru9 is a hydrogen atom, an alkyl group, an alkenyl group, an alkoxyl group, an alkoxycarbonyl group, an acyl group, a carbamoyl group, a sulfamoyl group, a sulfo group, a cyano group, Represents an aryl group or a heteroaryl group. The embodiment in which R u9 is a cyano group or an aryl group is more preferable, and the embodiment in which R u9 is a cyano group, a phenyl group or a naphthyl group is further preferable.
In formula (OS-101) or formula (OS-102), Ru2a represents an alkyl or aryl group.
In formula (OS-101) or formula (OS-102), Xu is -O-, -S-, -NH- , -NR u5-, -CH 2- , -CR u6 H- or CR u6 R u7. Represents −, and R u5 to R u7 independently represent an alkyl group or an aryl group.
 式(OS-101)又は式(OS-102)中、Ru1~Ru4はそれぞれ独立に、水素原子、ハロゲン原子、アルキル基、アルケニル基、アルコキシル基、アミノ基、アルコキシカルボニル基、アルキルカルボニル基、アリールカルボニル基、アミド基、スルホ基、シアノ基又はアリール基を表す。Ru1~Ru4のうちの2つがそれぞれ互いに結合して環を形成してもよい。このとき、環が縮環してベンゼン環ともに縮合環を形成していてもよい。Ru1~Ru4としては、水素原子、ハロゲン原子又はアルキル基が好ましく、また、Ru1~Ru4のうちの少なくとも2つが互いに結合してアリール基を形成する態様も好ましい。中でも、Ru1~Ru4がいずれも水素原子である態様が好ましい。上記した置換基は、いずれも、更に置換基を有していてもよい。 In the formula (OS-101) or the formula (OS-102), Ru1 to Ru4 are independently hydrogen atom, halogen atom, alkyl group, alkenyl group, alkoxyl group, amino group, alkoxycarbonyl group and alkylcarbonyl group, respectively. , Arylcarbonyl group, amide group, sulfo group, cyano group or aryl group. 2 in turn, each may be bonded to each other to form a ring of the R u1 ~ R u4. At this time, the ring may be condensed to form a condensed ring together with the benzene ring. The R u1 ~ R u4, a hydrogen atom, preferably a halogen atom or an alkyl group, also aspects to form the at least two aryl groups bonded to each other of R u1 ~ R u4 preferred. Above all, it is preferable that all of Ru1 to Ru4 are hydrogen atoms. Any of the above-mentioned substituents may further have a substituent.
 上記式(OS-101)で表される化合物は、式(OS-102)で表される化合物であることがより好ましい。
 また、上記オキシムスルホネート化合物において、オキシムやベンゾチアゾール環の立体構造(E,Z等)についてはそれぞれ、いずれか一方であっても、混合物であってもよい。
 式(OS-101)で表される化合物の具体例としては、特開2011-209692号公報の段落番号0102~0106、特開2015-194674号公報の段落番号0195~0207に記載の化合物が例示され、これらの内容は本明細書に組み込まれる。
 上記化合物の中でも、下記b-9、b-16、b-31、b-33が好ましい。
Figure JPOXMLDOC01-appb-C000033

The compound represented by the above formula (OS-101) is more preferably a compound represented by the formula (OS-102).
Further, in the above-mentioned oxime sulfonate compound, the three-dimensional structure (E, Z, etc.) of the oxime and the benzothiazole ring may be either one or a mixture.
Specific examples of the compound represented by the formula (OS-101) include the compounds described in paragraph numbers 0102 to 0106 of JP2011-209692 and paragraph numbers 0195 to 0207 of JP2015-194674. These contents are incorporated herein by reference.
Among the above compounds, the following b-9, b-16, b-31, and b-33 are preferable.
Figure JPOXMLDOC01-appb-C000033

 その他、光酸発生剤としては市販品を使用してもよい。市販品としては、WPAG-145、WPAG-149、WPAG-170、WPAG-199、WPAG-336、WPAG-367、WPAG-370、WPAG-443、WPAG-469、WPAG-638、WPAG-699(いずれも富士フイルム和光純薬(株)製)、Omnicat 250、Omnicat 270(いずれもIGM Resins B.V.社製)、Irgacure 250、Irgacure 270、Irgacure 290(いずれもBASF社製)、MBZ-101(みどり化学(株)製)等が挙げられる。 In addition, a commercially available product may be used as the photoacid generator. Commercially available products include WPAG-145, WPAG-149, WPAG-170, WPAG-199, WPAG-336, WPAG-376, WPAG-370, WPAG-443, WPAG-469, WPAG-638, and WPAG-69 (any of which). Also Fujifilm Wako Pure Chemical Industries, Ltd., Omnicat 250, Omnicat 270 (all manufactured by IGM Resins BV), Irgacure 250, Irgacure 270, Irgacure 290 (all manufactured by BASF), MBZ-101 (all manufactured by BASF) (Made by Midori Chemical Industries, Ltd.) and the like.
 また、下記構造式で表される化合物も好ましい例として挙げられる。
Figure JPOXMLDOC01-appb-C000034
Further, a compound represented by the following structural formula is also mentioned as a preferable example.
Figure JPOXMLDOC01-appb-C000034
 光酸発生剤としては、有機ハロゲン化化合物も適用できる。有機ハロゲン化化合物としては、具体的には、若林等「Bull Chem.Soc Japan」42、2924(1969)、米国特許第3,905,815号明細書、特公昭46-4605号、特開昭48-36281号、特開昭55-32070号、特開昭60-239736号、特開昭61-169835号、特開昭61-169837号、特開昭62-58241号、特開昭62-212401号、特開昭63-70243号、特開昭63-298339号、M.P.Hutt“Jurnal of Heterocyclic Chemistry”1(No3),(1970)などに記載の化合物が挙げられ、特に、トリハロメチル基が置換したオキサゾール化合物:S-トリアジン化合物が挙げられる。
 より好適には、少なくとも一つのモノ、ジ、又はトリハロゲン置換メチル基がs-トリアジン環に結合したs-トリアジン誘導体、具体的には、例えば、2,4,6-トリス(モノクロロメチル)-s-トリアジン、2,4,6-トリス(ジクロロメチル)-s-トリアジン、2,4,6-トリス(トリクロロメチル)-s-トリアジン、2-メチル-4,6-ビス(トリクロロメチル)-s-トリアジン、2―n-プロピル-4,6-ビス(トリクロロメチル)-s-トリアジン、2-(α,α,β-トリクロロエチル)-4,6-ビス(トリクロロメチル)-s-トリアジン、2-フェニル-4,6-ビス(トリクロロメチル)-s-トリアジン、2-(p-メトキシフェニル)-4,6-ビス(トリクロロメチル)-s-トリアジン、2-(3,4-エポキシフェニル)-4、6-ビス(トリクロロメチル)-s-トリアジン、2-(p-クロロフェニル)-4,6-ビス(トリクロロメチル)-s-トリアジン、2-〔1-(p-メトキシフェニル)-2,4-ブタジエニル〕-4,6-ビス(トリクロロメチル)-s-トリアジン、2-スチリル-4,6-ビス(トリクロロメチル)-s-トリアジン、2-(p-メトキシスチリル)-4,6-ビス(トリクロロメチル)-s-トリアジン、2-(p-i-プロピルオキシスチリル)-4、6-ビス(トリクロロメチル)-s-トリアジン、2-(p-トリル)-4,6-ビス(トリクロロメチル)-s-トリアジン、2-(4-ナトキシナフチル)-4,6-ビス(トリクロロメチル)-s-トリアジン、2-フェニルチオ-4,6-ビス(トリクロロメチル)-s-トリアジン、2-ベンジルチオ-4,6-ビス(トリクロロメチル)-s-トリアジン、2,4,6-トリス(ジブロモメチル)-s-トリアジン、2,4,6-トリス(トリブロモメチル)-s-トリアジン、2-メチル-4,6-ビス(トリブロモメチル)-s-トリアジン、2-メトキシ-4,6-ビス(トリブロモメチル)-s-トリアジン等が挙げられる。
As the photoacid generator, an organic halogenated compound can also be applied. Specific examples of the organic halogenated compound include Wakabayashi et al., “Bull Chem. Soc Japan” 42, 2924 (1969), US Pat. No. 3,905,815, JP-A-46-4605, JP-A-A. 48-36281, JP-A-55-3270, JP-A-60-239736, JP-A-61-169835, JP-A-61-169837, JP-A-62-58241, JP-A-62- 212401, Japanese Patent Application Laid-Open No. 63-70243, Japanese Patent Application Laid-Open No. 63-298339, M.D. P. The compounds described in Hutt “Jurnal of Heterocyclic Chemistry” 1 (No. 3), (1970) and the like can be mentioned, and in particular, oxazole compounds substituted with trihalomethyl groups: S-triazine compounds can be mentioned.
More preferably, an s-triazine derivative in which at least one mono, di, or trihalogen-substituted methyl group is attached to the s-triazine ring, specifically, for example, 2,4,6-tris (monochromomethyl)-. s-triazine, 2,4,6-tris (dichloromethyl) -s-triazine, 2,4,6-tris (trichloromethyl) -s-triazine, 2-methyl-4,6-bis (trichloromethyl)- s-triazine, 2-n-propyl-4,6-bis (trichloromethyl) -s-triazine, 2- (α, α, β-trichloroethyl) -4,6-bis (trichloromethyl) -s-triazine , 2-Phenyl-4,6-bis (trichloromethyl) -s-triazine, 2- (p-methoxyphenyl) -4,6-bis (trichloromethyl) -s-triazine, 2- (3,4-epoxy) Phenyl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-chlorophenyl) -4,6-bis (trichloromethyl) -s-triazine, 2- [1- (p-methoxyphenyl) -2,4-Butadienyl] -4,6-bis (trichloromethyl) -s-triazine, 2-styryl-4,6-bis (trichloromethyl) -s-triazine, 2- (p-methoxystyryl) -4 , 6-bis (trichloromethyl) -s-triazine, 2- (pi-propyloxystyryl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-tolyl) -4,6 -Bis (trichloromethyl) -s-triazine, 2- (4-natoxynaphthyl) -4,6-bis (trichloromethyl) -s-triazine, 2-phenylthio-4,6-bis (trichloromethyl) -s-triazine , 2-benzylthio-4,6-bis (trichloromethyl) -s-triazine, 2,4,6-tris (dibromomethyl) -s-triazine, 2,4,6-tris (tribromomethyl) -s- Examples thereof include triazine, 2-methyl-4,6-bis (tribromomethyl) -s-triazine, 2-methoxy-4,6-bis (tribromomethyl) -s-triazine and the like.
 光酸発生剤としては、有機ホウ酸塩化合物も適用できる。有機ホウ酸塩化合物としては、例えば、特開昭62-143044号、特開昭62-150242号、特開平9-188685号、特開平9-188686号、特開平9-188710号、特開2000-131837、特開2002-107916、特許第2764769号、特願2000-310808号、等の各公報、及び、Kunz,Martin“Rad Tech'98.Proceeding April 19-22,1998,Chicago”等に記載される有機ホウ酸塩、特開平6-157623号公報、特開平6-175564号公報、特開平6-175561号公報に記載の有機ホウ素スルホニウム錯体或いは有機ホウ素オキソスルホニウム錯体、特開平6-175554号公報、特開平6-175553号公報に記載の有機ホウ素ヨードニウム錯体、特開平9-188710号公報に記載の有機ホウ素ホスホニウム錯体、特開平6-348011号公報、特開平7-128785号公報、特開平7-140589号公報、特開平7-306527号公報、特開平7-292014号公報等の有機ホウ素遷移金属配位錯体等が具体例として挙げられる。 As a photoacid generator, an organic borate compound can also be applied. Examples of the organic borate compound include JP-A-62-143044, JP-A-62-150242, JP-A-9-188685, JP-A-9-188686, JP-A-9-188710, and JP-A-2000. -131837, JP-A-2002-107916, Japanese Patent No. 2764769, Japanese Patent Application No. 2000-310808, etc., and Kunz, Martin "Rad Tech '98. Proceeding Compound 19-22, 1998, Chicago" and the like. Organic borates, organic boron sulfonium complexes or organic boron oxosulfonium complexes described in JP-A-6-157623, JP-A-6-175564, JP-A-6-175561 and JP-A-6-175554. Japanese Patent Laid-Open No. 6-175553, Organic Boron Iodonium Complex, Japanese Patent Application Laid-Open No. 9-188710, Organic Boron Phosphorium Complex, Japanese Patent Application Laid-Open No. 6-348011, Japanese Patent Application Laid-Open No. 7-128785, Japanese Patent Application Laid-Open No. Specific examples thereof include organic boron transition metal coordination complexes of JP-A-7-140589, JP-A-7-306527, and JP-A-7-292014.
 光酸発生剤としては、ジスルホン化合物も適用できる。ジスルホン化合物としては、特開昭61-166544号、特願2001-132318公報等に記載されている化合物およびジアゾジスルホン化合物が挙げられる。 A disulfone compound can also be applied as a photoacid generator. Examples of the disulfone compound include compounds described in JP-A-61-166544, Japanese Patent Application Laid-Open No. 2001-132318, and diazodisulfone compounds.
 上記オニウム塩化合物としては、例えば、S.I.Schlesinger,Photogr.Sci.Eng.,18,387(1974)、T.S.Bal et al,Polymer,21,423(1980)に記載のジアゾニウム塩、米国特許第4,069,055号明細書、特開平4-365049号等に記載のアンモニウム塩、米国特許第4,069,055号、同4,069,056号の各明細書に記載のホスホニウム塩、欧州特許第104、143号、米国特許第339,049号、同第410,201号の各明細書、特開平2-150848号、特開平2-296514号に記載のヨードニウム塩、欧州特許第370,693号、同390,214号、同233,567号、同297,443号、同297,442号、米国特許第4,933,377号、同161,811号、同410,201号、同339,049号、同4,760,013号、同4,734,444号、同2,833,827号、独国特許第2,904,626号、同3,604,580号、同3,604,581号の各明細書に記載のスルホニウム塩、J.V.Crivello et al,Macromolecules,10(6),1307(1977)、J.V.Crivello et al,J.Polymer Sci.,Polymer Chem.Ed.,17,1047(1979)に記載のセレノニウム塩、C.S.Wen et al,Teh,Proc.Conf.Rad.Curing ASIA,p478 Tokyo,Oct(1988)に記載のアルソニウム塩、ピリジニウム塩等のオニウム塩等が挙げられる。 Examples of the onium salt compound include S.I. I. Schlesinger, Photogr. Sci. Eng. , 18,387 (1974), T.K. S. The diazonium salt described in Bal et al, Polymer, 21, 423 (1980), the ammonium salt described in US Pat. No. 4,069,055, JP-A-4-365549, etc., US Pat. No. 4,069, Phosphonium salts described in 055, 4,069,056, European Patents 104, 143, US Patents 339,049, 410,201, JP-A-2. -150848, Iodonium salt described in JP-A-2-296514, European Patent Nos. 370,693, 390,214, 233,567, 297,443, 297,442, US Patent No. 4,933,377, No. 161,811, No. 410,201, No. 339,049, No. 4,760,013, No. 4,734,444, No. 2,833,827, The sulfonium salt according to German Patent Nos. 2,904,626, 3,604,580, and 3,604,581. V. Crivello et al, Macromolecules, 10 (6), 1307 (1977), J. Mol. V. Crivello et al, J. et al. Polymer Sci. , Polymer Chem. Ed. , 17, 1047 (1979), selenonium salt, C.I. S. Wen et al, Theh, Proc. Conf. Rad. Examples thereof include onium salts such as the arsonium salt and the pyridinium salt described in Curing ASIA, p478 Tokyo, Oct (1988).
 オニウム塩としては、下記一般式(RI-I)~(RI-III)で表されるオニウム塩が挙げられる。
Figure JPOXMLDOC01-appb-C000035

 式(RI-I)中、Ar11は置換基を1~6有していても良い炭素数20以下のアリール基を表し、好ましい置換基としては炭素数1~12のアルキル基、炭素数1~12のアルケニル基、炭素数1~12のアルキニル基、炭素数1~12のアリール基、炭素数1~12のアルコキシ基、炭素数1~12のアリーロキシ基、ハロゲン原子、炭素数1~12のアルキルアミノ基、炭素数1~12のジアルキルアミノ基、炭素数1~12のアルキルアミド基又はアリールアミド基、カルボニル基、カルボキシル基、シアノ基、スルホニル基、炭素数1~12のチオアルキル基、炭素数1~12のチオアリール基が挙げられる。Z11は1価の陰イオンを表し、ハロゲンイオン、過塩素酸イオン、ヘキサフルオロホスフェートイオン、テトラフルオロボレートイオン、スルホン酸イオン、スルフィン酸イオン、チオスルホン酸イオン、硫酸イオンであり、安定性の面から過塩素酸イオン、ヘキサフルオロホスフェートイオン、テトラフルオロボレートイオン、スルホン酸イオン、スルフィン酸イオンが好ましい。式(RI-II)中、Ar21、Ar22は各々独立に置換基を1~6有していても良い炭素数20以下のアリール基を表し、好ましい置換基としては炭素数1~12のアルキル基、炭素数1~12のアルケニル基、炭素数1~12のアルキニル基、炭素数1~12のアリール基、炭素数1~12のアルコキシ基、炭素数1~12のアリーロキシ基、ハロゲン原子、炭素数1~12のアルキルアミノ基、炭素数1~12のジアルキルアミノ基、炭素数1~12のアルキルアミド基又はアリールアミド基、カルボニル基、カルボキシル基、シアノ基、スルホニル基、炭素数1~12のチオアルキル基、炭素数1~12のチオアリール基が挙げられる。Z21 は1価の陰イオンを表し、ハロゲンイオン、過塩素酸イオン、ヘキサフルオロホスフェートイオン、テトラフルオロボレートイオン、スルホン酸イオン、スルフィン酸イオン、チオスルホン酸イオン、硫酸イオンであり、安定性、反応性の面から過塩素酸イオン、ヘキサフルオロホスフェートイオン、テトラフルオロボレートイオン、スルホン酸イオン、スルフィン酸イオン、カルボン酸イオンが好ましい。式(RI-III)中、R31、R32、R33は各々独立に置換基を1~6有していても良い炭素数20以下のアリール基又はアルキル基、アルケニル基、アルキニル基を表し、好ましくは反応性、安定性の面から、アリール基であることが望ましい。好ましい置換基としては炭素数1~12のアルキル基、炭素数1~12のアルケニル基、炭素数1~12のアルキニル基、炭素数1~12のアリール基、炭素数1~12のアルコキシ基、炭素数1~12のアリーロキシ基、ハロゲン原子、炭素数1~12のアルキルアミノ基、炭素数1~12のジアルキルアミノ基、炭素数1~12のアルキルアミド基又はアリールアミド基、カルボニル基、カルボキシル基、シアノ基、スルホニル基、炭素数1~12のチオアルキル基、炭素数1~12のチオアリール基が挙げられる。Z31は1価の陰イオンを表し、ハロゲンイオン、過塩素酸イオン、ヘキサフルオロホスフェートイオン、テトラフルオロボレートイオン、スルホン酸イオン、スルフィン酸イオン、チオスルホン酸イオン、硫酸イオンであり、安定性、反応性の面から過塩素酸イオン、ヘキサフルオロホスフェートイオン、テトラフルオロボレートイオン、スルホン酸イオン、スルフィン酸イオン、カルボン酸イオンが好ましい。
Examples of the onium salt include onium salts represented by the following general formulas (RI-I) to (RI-III).
Figure JPOXMLDOC01-appb-C000035

In the formula (RI-I), Ar 11 represents an aryl group having 20 or less carbon atoms which may have 1 to 6 substituents, and preferred substituents are an alkyl group having 1 to 12 carbon atoms and 1 carbon number. An alkenyl group having 12 to 12, an alkynyl group having 1 to 12 carbon atoms, an aryl group having 1 to 12 carbon atoms, an alkoxy group having 1 to 12 carbon atoms, an aryloxy group having 1 to 12 carbon atoms, a halogen atom, and 1 to 12 carbon atoms. Alkylamino group, dialkylamino group having 1 to 12 carbon atoms, alkylamide group or arylamide group having 1 to 12 carbon atoms, carbonyl group, carboxyl group, cyano group, sulfonyl group, thioalkyl group having 1 to 12 carbon atoms, Examples thereof include a thioaryl group having 1 to 12 carbon atoms. Z11 - represents a monovalent anion, a halogen ion, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonate ion, sulfinate ion, thiosulfonate ion, sulfate ion, surface stability Perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonic acid ion, sulfinate ion are preferable. In the formula (RI-II), Ar 21 and Ar 22 each represent an aryl group having 20 or less carbon atoms which may independently have 1 to 6 substituents, and preferred substituents have 1 to 12 carbon atoms. Alkyl group, alkenyl group having 1 to 12 carbon atoms, alkynyl group having 1 to 12 carbon atoms, aryl group having 1 to 12 carbon atoms, alkoxy group having 1 to 12 carbon atoms, aryloxy group having 1 to 12 carbon atoms, halogen atom , Alkylamino group with 1 to 12 carbon atoms, dialkylamino group with 1 to 12 carbon atoms, alkylamide group or arylamide group with 1 to 12 carbon atoms, carbonyl group, carboxyl group, cyano group, sulfonyl group, 1 carbon number Examples thereof include a thioalkyl group having up to 12 and a thioaryl group having 1 to 12 carbon atoms. Z 21 - represents a monovalent anion, a halogen ion, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonate ion, sulfinate ion, thiosulfonate ion, sulfate ion, stability, From the viewpoint of reactivity, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonic acid ion, sulfinate ion and carboxylate ion are preferable. In formula (RI-III), R 31 , R 32 , and R 33 each represent an aryl group or an alkyl group, an alkenyl group, or an alkynyl group having 20 or less carbon atoms which may independently have 1 to 6 substituents. , Preferably an aryl group from the viewpoint of reactivity and stability. Preferred substituents include an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 1 to 12 carbon atoms, an alkynyl group having 1 to 12 carbon atoms, an aryl group having 1 to 12 carbon atoms, and an alkoxy group having 1 to 12 carbon atoms. Allyloxy group having 1 to 12 carbon atoms, halogen atom, alkylamino group having 1 to 12 carbon atoms, dialkylamino group having 1 to 12 carbon atoms, alkylamide group or arylamide group having 1 to 12 carbon atoms, carbonyl group, carboxyl Examples thereof include a group, a cyano group, a sulfonyl group, a thioalkyl group having 1 to 12 carbon atoms, and a thioaryl group having 1 to 12 carbon atoms. Z31 - represents a monovalent anion, a halogen ion, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonate ion, sulfinate ion, thiosulfonate ion, sulfate ion, stability, reaction From the viewpoint of properties, perchlorate ion, hexafluorophosphate ion, tetrafluoroborate ion, sulfonic acid ion, sulfinate ion and carboxylate ion are preferable.
 具体例としては、以下のものが挙げられる。
Figure JPOXMLDOC01-appb-C000036
 
Figure JPOXMLDOC01-appb-C000037
 
Figure JPOXMLDOC01-appb-C000038

Figure JPOXMLDOC01-appb-C000039
 
Specific examples include the following.
Figure JPOXMLDOC01-appb-C000036

Figure JPOXMLDOC01-appb-C000037

Figure JPOXMLDOC01-appb-C000038

Figure JPOXMLDOC01-appb-C000039
 光酸発生剤を含む場合、その含有量は、本発明の組成物の全固形分に対し0.1~30質量%であることが好ましく、0.1~20質量%であることがより好ましく、2~15質量%であることが更に好ましい。光酸発生剤は1種のみ含有していてもよいし、2種以上含有していてもよい。光酸発生剤を2種以上含有する場合は、その合計が上記範囲であることが好ましい。 When a photoacid generator is contained, the content thereof is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the composition of the present invention. It is more preferably 2 to 15% by mass. Only one type of photoacid generator may be contained, or two or more types may be contained. When two or more photoacid generators are contained, the total is preferably in the above range.
〔光塩基発生剤〕
 本発明の硬化性樹脂組成物は、感光剤として、光塩基発生剤を含んでもよい。
 硬化性樹脂組成物が、光塩基発生剤と、後述する架橋剤とを含有することにより、例えば、露光部に発生した塩基により特定樹脂の環化が促進される、架橋剤の架橋反応が促進される等の作用により、露光部が非露光部よりも現像液により除去されにくくなる態様とすることもできる。このような態様によれば、ネガ型のレリーフパターンを得ることができる。
[Photobase generator]
The curable resin composition of the present invention may contain a photobase generator as a photosensitizer.
When the curable resin composition contains a photobase generator and a cross-linking agent described later, for example, the cyclization of the specific resin is promoted by the base generated in the exposed portion, and the cross-linking reaction of the cross-linking agent is promoted. It is also possible to make the exposed portion more difficult to be removed by the developing solution than the non-exposed portion due to such an action. According to such an aspect, a negative type relief pattern can be obtained.
 光塩基発生剤としては、露光により塩基を発生するものであれば特に限定されず、公知のものを用いることが出来る。
 例えば、M.Shirai,and M.Tsunooka, Prog.Polym.Sci.,21,1(1996);角岡正弘,高分子加工,46,2(1997);C.Kutal,Coord.Chem.Rev.,211,353(2001);Y.Kaneko,A.Sarker,  and  D.Neckers,Chem.Mater.,11,170(1999);H.Tachi,M.Shirai,  and  M.Tsunooka,J.Photopolym.Sci.Technol.,13,153(2000);M.Winkle,  and  K.Graziano,J.Photopolym.Sci.Technol.,3,419(1990);M.Tsunooka,H.Tachi,  and  S.Yoshitaka,J.Photopolym.Sci.Technol.,9,13(1996);K.Suyama,H.Araki,M.Shirai,J.Photopolym.Sci.Technol.,19,81(2006)に記載されているように、遷移金属化合物錯体や、アンモニウム塩などの構造を有するものや、アミジン部分がカルボン酸と塩形成することで潜在化されたもののように、塩基成分が塩を形成することにより中和されたイオン性の化合物や、カルバメート誘導体、オキシムエステル誘導体、アシル化合物などのウレタン結合やオキシム結合などにより塩基成分が潜在化された非イオン性の化合物を挙げることができる。
 本発明では、光塩基発生剤として、カルバメート誘導体、アミド誘導体、イミド誘導体、αコバルト錯体類、イミダゾール誘導体、桂皮酸アミド誘導体、オキシム誘導体等がより好ましい例として挙げられる。
The photobase generator is not particularly limited as long as it generates a base by exposure, and known ones can be used.
For example, M. Shirai, and M. Tsunooka, Prog. Polym. Sci. , 21, 1 (1996); Masahiro Kakuoka, Polymer Processing, 46, 2 (1997); C.I. Kutal, Code. Chem. Rev. , 211,353 (2001); Y. Kaneko, A.M. Sarker, and D. Neckers, Chem. Mater. , 11, 170 (1999); Tachi, M. et al. Shirai, and M. Tsunooka, J. et al. Photopolym. Sci. Technol. , 13, 153 (2000); Winkle, and K. Graziano, J. et al. Photopolym. Sci. Technol. , 3,419 (1990); Tsunooka, H. et al. Tachi, and S. Yoshitaka, J.M. Photopolym. Sci. Technol. , 9, 13 (1996); Suyama, H. et al. Araki, M. et al. Shirai, J. et al. Photopolym. Sci. Technol. , 19, 81 (2006), such as those having a structure such as a transition metal compound complex or an ammonium salt, or those in which the amidin moiety is latent by salt formation with a carboxylic acid. Ionic compounds whose base components are neutralized by forming salts, and nonionic compounds whose base components are latent by urethane bonds or oxime bonds such as carbamate derivatives, oxime ester derivatives, and acyl compounds. Can be mentioned.
In the present invention, as the photobase generator, carbamate derivatives, amide derivatives, imide derivatives, α-cobalt complexes, imidazole derivatives, cinnamic acid amide derivatives, oxime derivatives and the like are more preferable examples.
 光塩基発生剤から発生する塩基性物質としては、特に限定されないが、アミノ基を有する化合物、特にモノアミンや、ジアミンなどのポリアミン、また、アミジンなどが挙げられる。
 イミド化率の観点からは、上記塩基性物質は、共役酸のDMSO(ジメチルスルホキシド)中のpKaが大きいものであることが好ましい。上記pKaは、1以上であることが好ましく、3以上であることがより好ましい。上記pKaの上限は特に限定されないが、20以下であることが好ましい。
 ここで、上記pKaとは、酸の第一解離定数の逆数の対数を表し、Determination of Organic Structures by Physical Methods(著者:Brown, H. C., McDaniel, D. H., Hafliger, O., Nachod, F. C.; 編纂:Braude, E. A., Nachod, F. C.; Academic Press, New York, 1955)や、Data for Biochemical Research(著者:Dawson, R.M.C.et al; Oxford, Clarendon Press, 1959)に記載の値を参照することができる。これらの文献に記載の無い化合物については、ACD/pKa(ACD/Labs製)のソフトを用いて構造式より算出した値をpKaとして用いることとする。
The basic substance generated from the photobase generator is not particularly limited, and examples thereof include compounds having an amino group, particularly monoamines, polyamines such as diamines, and amidines.
From the viewpoint of the imidization ratio, the basic substance preferably has a large pKa in DMSO (dimethyl sulfoxide) of the conjugate acid. The pKa is preferably 1 or more, and more preferably 3 or more. The upper limit of the pKa is not particularly limited, but is preferably 20 or less.
Here, pKa represents the logarithm of the reciprocal of the first dissociation constant of the acid, and the Determination of Organic Structures by Physical Methods (author: Brown, HC, McDaniel, DH, Hafliger, O., Nachod, FC; You can refer to the values described in Braude, EA, Nachod, FC; Academic Press, New York, 1955) and Data for Biochemical Research (author: Dawson, RMCet al; Oxford, Clarendon Press, 1959). For compounds not described in these documents, the value calculated from the structural formula using ACD / pKa (manufactured by ACD / Labs) software is used as pKa.
 硬化性樹脂組成物の保存安定性の観点からは、光塩基発生剤としては、構造中に塩を含まない光塩基発生剤であることが好ましく、光塩基発生剤において発生する塩基部分の窒素原子上に電荷がないことが好ましい。光塩基発生剤としては、発生する塩基が共有結合を用いて潜在化されていることが好ましく、塩基の発生機構が、発生する塩基部分の窒素原子と隣接する原子との間の共有結合が切断されて塩基が発生するものであることが好ましい。構造中に塩を含まない光塩基発生剤であると、光塩基発生剤を中性にすることができるため、溶剤溶解性がより良好であり、ポットライフが向上する。このような理由から、本発明で用いられる光塩基発生剤から発生するアミンは、1級アミン又は2級アミンが好ましい。
 また、パターンの耐薬品性の観点からは、光塩基発生剤としては、構造中に塩を含む光塩基発生剤であることが好ましい。
From the viewpoint of storage stability of the curable resin composition, the photobase generator is preferably a photobase generator that does not contain a salt in the structure, and the nitrogen atom of the base portion generated in the photobase generator. It is preferable that there is no charge on the top. As the photobase generator, it is preferable that the generated base is latent using a covalent bond, and the mechanism of base generation is such that the covalent bond between the nitrogen atom of the generated base portion and the adjacent atom is cleaved. It is preferable that the base is generated. When the photobase generator does not contain a salt in the structure, the photobase generator can be neutralized, so that the solvent solubility is better and the pot life is improved. For this reason, the amine generated from the photobase generator used in the present invention is preferably a primary amine or a secondary amine.
Further, from the viewpoint of chemical resistance of the pattern, the photobase generator is preferably a photobase generator containing a salt in the structure.
 また、上記のような理由から光塩基発生剤としては、上述のように発生する塩基が共有結合を用いて潜在化されていることが好ましく、発生する塩基がアミド結合、カルバメート結合、オキシム結合を用いて潜在化されていることが好ましい。
 本発明に係る光塩基発生剤としては、例えば、特開2009-080452号公報及び国際公開第2009/123122号で開示されたような桂皮酸アミド構造を有する光塩基発生剤、特開2006-189591号公報及び特開2008-247747号公報で開示されたようなカルバメート構造を有する光塩基発生剤、特開2007-249013号公報及び特開2008-003581号公報で開示されたようなオキシム構造、カルバモイルオキシム構造を有する光塩基発生剤等が挙げられるが、これらに限定されず、その他にも公知の光塩基発生剤の構造を用いることができる。
Further, for the above reasons, as the photobase generator, it is preferable that the base generated as described above is latent using a covalent bond, and the generated base has an amide bond, a carbamate bond, and an oxime bond. It is preferably latent using.
Examples of the photobase generator according to the present invention include a photobase generator having a cinnamic acid amide structure as disclosed in JP-A-2009-08452 and JP-A-2009 / 123122, JP-A-2006-189591. A photobase generator having a carbamate structure as disclosed in JP-A and JP-A-2008-247747, an oxime structure as disclosed in JP-A-2007-249013 and JP-A-2008-003581, Carbamoyl. Examples thereof include a photobase generator having an oxime structure, but the present invention is not limited to these, and other known photobase generator structures can be used.
 その他、光塩基発生剤としては、特開2012-093746号公報の段落番号0185~0188、0199~0200及び0202に記載の化合物、特開2013-194205号公報の段落番号0022~0069に記載の化合物、特開2013-204019号公報の段落番号0026~0074に記載の化合物、及び、国際公開第2010/064631号の段落番号0052に記載の化合物が例として挙げられる。 In addition, as the photobase generator, the compounds described in paragraphs 0185 to 0188, 0199 to 0200 and 0202 of JP2012-093746, and the compounds described in paragraphs 0022 to 0069 of JP2013-194205. Examples thereof include the compounds described in paragraphs 0026 to 0074 of JP2013-204319A, and the compounds described in paragraph number 0052 of International Publication No. 2010/064631.
 その他、光塩基発生剤としては市販品を使用してもよい。市販品としては、WPBG-266、WPBG-300、WPGB-345、WPGB-140、WPBG-165、WPBG-027、WPBG-018、WPGB-015、WPBG-041、WPGB-172、WPGB-174、WPBG-166、WPGB-158、WPGB-025、WPGB-168、WPGB-167、WPBG-082(いずれも富士フイルム和光純薬(株)製)、A2502、B5085、N0528、N1052、O0396、O0447、O0448(東京化成工業(株)製)等が挙げられる。 In addition, a commercially available product may be used as the photobase generator. Commercially available products include WPBG-266, WPBG-300, WPGB-345, WPGB-140, WPBG-165, WPBG-027, WPBG-018, WPGB-015, WPBG-041, WPGB-172, WPGB-174, WPBG. -166, WPGB-158, WPGB-025, WPGB-168, WPGB-167, WPBG-082 (all manufactured by Fujifilm Wako Pure Chemical Industries, Ltd.), A2502, B5085, N0528, N1052, O0396, O0447, O0448 ( (Made by Tokyo Chemical Industry Co., Ltd.) and the like.
 光塩基発生剤を含む場合、その含有量は、本発明の硬化性樹脂組成物の全固形分に対し0.1~30質量%であることが好ましく、0.1~20質量%であることがより好ましく、2~15質量%であることが更に好ましい。光塩基発生剤は1種のみ含有していてもよいし、2種以上含有していてもよい。光塩基発生剤を2種以上含有する場合は、その合計が上記範囲であることが好ましい。 When a photobase generator is contained, the content thereof is preferably 0.1 to 30% by mass, preferably 0.1 to 20% by mass, based on the total solid content of the curable resin composition of the present invention. Is more preferable, and 2 to 15% by mass is further preferable. Only one type of photobase generator may be contained, or two or more types may be contained. When two or more photobase generators are contained, the total is preferably in the above range.
<熱重合開始剤>
 本発明の組成物は、熱重合開始剤を含んでもよく、特に熱ラジカル重合開始剤を含んでもよい。熱ラジカル重合開始剤は、熱のエネルギーによってラジカルを発生し、重合性を有する化合物の重合反応を開始又は促進させる化合物である。熱ラジカル重合開始剤を添加することによって、後述する加熱工程において、樹脂及び架橋剤の重合反応を進行させることもできるので、より耐溶剤性を向上できる。
<Thermal polymerization initiator>
The composition of the present invention may contain a thermal polymerization initiator, and in particular, a thermal radical polymerization initiator. A thermal radical polymerization initiator is a compound that generates radicals by heat energy to initiate or accelerate the polymerization reaction of a polymerizable compound. By adding the thermal radical polymerization initiator, the polymerization reaction of the resin and the cross-linking agent can be allowed to proceed in the heating step described later, so that the solvent resistance can be further improved.
 熱ラジカル重合開始剤として、具体的には、特開2008-063554号公報の段落0074~0118に記載されている化合物が挙げられる。 Specific examples of the thermal radical polymerization initiator include the compounds described in paragraphs 0074 to 0118 of JP-A-2008-063554.
 熱重合開始剤を含む場合、その含有量は、本発明の組成物の全固形分に対し0.1~30質量%であることが好ましく、より好ましくは0.1~20質量%であり、更に好ましくは0.5~15質量%である。熱重合開始剤は1種のみ含有していてもよいし、2種以上含有していてもよい。熱重合開始剤を2種以上含有する場合は、合計量が上記範囲であることが好ましい。 When the thermal polymerization initiator is contained, the content thereof is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the composition of the present invention. More preferably, it is 0.5 to 15% by mass. Only one type of thermal polymerization initiator may be contained, or two or more types may be contained. When two or more kinds of thermal polymerization initiators are contained, the total amount is preferably in the above range.
<熱酸発生剤>
 本発明の組成物は、熱酸発生剤を含んでもよい。
 熱酸発生剤は、加熱により酸を発生し、ヒドロキシメチル基、アルコキシメチル基又はアシルオキシメチル基を有する化合物、エポキシ化合物、オキセタン化合物及びベンゾオキサジン化合物から選ばれる少なくとも1種の化合物の架橋反応を促進させる効果がある。
<Thermal acid generator>
The composition of the present invention may contain a thermoacid generator.
The thermoacid generator generates an acid by heating and promotes a cross-linking reaction of at least one compound selected from a compound having a hydroxymethyl group, an alkoxymethyl group or an acyloxymethyl group, an epoxy compound, an oxetane compound and a benzoxazine compound. It has the effect of making it.
 熱酸発生剤の熱分解開始温度は、50℃~270℃が好ましく、50℃~250℃がより好ましい。また、組成物を基板に塗布した後の乾燥(プリベーク:約70~140℃)時には酸を発生せず、その後の露光、現像でパターニングした後の最終加熱(キュア:約100~400℃)時に酸を発生するものを熱酸発生剤として選択すると、現像時の感度低下を抑制できるため好ましい。
 熱分解開始温度は、熱酸発生剤を耐圧カプセル中5℃/分で500℃まで加熱した場合に、最も温度が低い発熱ピークのピーク温度として求められる。
 熱分解開始温度を測定する際に用いられる機器としては、Q2000(TAインスツルメント社製)等が挙げられる。
The thermal decomposition start temperature of the thermal acid generator is preferably 50 ° C. to 270 ° C., more preferably 50 ° C. to 250 ° C. Further, no acid is generated during drying (pre-baking: about 70 to 140 ° C.) after the composition is applied to the substrate, and during final heating (cure: about 100 to 400 ° C.) after patterning by subsequent exposure and development. It is preferable to select an acid-generating agent as the thermal acid generator because it can suppress a decrease in sensitivity during development.
The thermal decomposition start temperature is obtained as the peak temperature of the exothermic peak, which is the lowest temperature when the thermoacid generator is heated to 500 ° C. at 5 ° C./min in a pressure-resistant capsule.
Examples of the device used for measuring the thermal decomposition start temperature include Q2000 (manufactured by TA Instruments).
 熱酸発生剤から発生する酸は強酸が好ましく、例えば、p-トルエンスルホン酸、ベンゼンスルホン酸などのアリールスルホン酸、メタンスルホン酸、エタンスルホン酸、ブタンスルホン酸などのアルキルスルホン酸、あるいはトリフルオロメタンスルホン酸などのハロアルキルスルホン酸などが好ましい。このような熱酸発生剤の例としては、特開2013-072935号公報の段落0055に記載のものが挙げられる。 The acid generated from the thermoacid generator is preferably a strong acid, for example, aryl sulfonic acid such as p-toluene sulfonic acid and benzene sulfonic acid, alkyl sulfonic acid such as methane sulfonic acid, ethane sulfonic acid and butane sulfonic acid, or trifluoromethane. Haloalkyl sulfonic acid such as sulfonic acid is preferable. Examples of such a thermoacid generator include those described in paragraph 0055 of JP2013-072935A.
 中でも、有機膜中の残留が少なく有機膜物性を低下させにくいという観点から、炭素数1~4のアルキルスルホン酸や炭素数1~4のハロアルキルスルホン酸を発生するものがより好ましく、メタンスルホン酸(4-ヒドロキシフェニル)ジメチルスルホニウム、メタンスルホン酸(4-((メトキシカルボニル)オキシ)フェニル)ジメチルスルホニウム、メタンスルホン酸ベンジル(4-ヒドロキシフェニル)メチルスルホニウム、メタンスルホン酸ベンジル(4-((メトキシカルボニル)オキシ)フェニル)メチルスルホニウム、メタンスルホン酸(4-ヒドロキシフェニル)メチル((2-メチルフェニル)メチル)スルホニウム、トリフルオロメタンスルホン酸(4-ヒドロキシフェニル)ジメチルスルホニウム、トリフルオロメタンスルホン酸(4-((メトキシカルボニル)オキシ)フェニル)ジメチルスルホニウム、トリフルオロメタンスルホン酸ベンジル(4-ヒドロキシフェニル)メチルスルホニウム、トリフルオロメタンスルホン酸ベンジル(4-((メトキシカルボニル)オキシ)フェニル)メチルスルホニウム、トリフルオロメタンスルホン酸(4-ヒドロキシフェニル)メチル((2-メチルフェニル)メチル)スルホニウム、3-(5-(((プロピルスルホニル)オキシ)イミノ)チオフェン-2(5H)-イリデン)-2-(o-トリル)プロパンニトリル、2,2-ビス(3-(メタンスルホニルアミノ)-4-ヒドロキシフェニル)ヘキサフルオロプロパンが、熱酸発生剤として好ましい。 Of these, those that generate alkylsulfonic acid having 1 to 4 carbon atoms or haloalkylsulfonic acid having 1 to 4 carbon atoms are more preferable, and methanesulfonic acid is more preferable, from the viewpoint that there is little residue in the organic film and it is difficult to deteriorate the physical properties of the organic film. (4-Hydroxyphenyl) dimethylsulfonium, methanesulfonic acid (4-((methoxycarbonyl) oxy) phenyl) dimethylsulfonium, benzyl methanesulfonate (4-hydroxyphenyl) methylsulfonium, benzyl methanesulphonate (4-((methoxycarbonyl)) Carbonyl) oxy) phenyl) methylsulfonium, methanesulfonic acid (4-hydroxyphenyl) methyl ((2-methylphenyl) methyl) sulfonium, trifluoromethanesulfonic acid (4-hydroxyphenyl) dimethylsulfonium, trifluoromethanesulfonic acid (4-) ((Methoxycarbonyl) oxy) phenyl) dimethylsulfonium, benzyl (4-hydroxyphenyl) methylsulfonium trifluoromethanesulfonate, benzyl trifluoromethanesulfonate (4-((methoxycarbonyl) oxy) phenyl) methylsulfonium, trifluoromethanesulfonic acid (4-Hydroxyphenyl) methyl ((2-methylphenyl) methyl) sulfonium, 3-(5-(((propylsulfonyl) oxy) imino) thiophen-2 (5H) -iriden) -2- (o-tolyl) Propanenitrile, 2,2-bis (3- (methanesulfonylamino) -4-hydroxyphenyl) hexafluoropropane is preferred as the thermoacid generator.
 また、特開2013-167742号公報の段落0059に記載の化合物も熱酸発生剤として好ましい。 Further, the compound described in paragraph 0059 of JP2013-167742A is also preferable as the thermoacid generator.
 熱酸発生剤の含有量は、特定樹脂100質量部に対して0.01質量部以上が好ましく、0.1質量部以上がより好ましい。0.01質量部以上含有することで、架橋反応が促進されるため、有機膜の機械特性及び耐溶剤性をより向上させることができる。また、有機膜の電気絶縁性の観点から、20質量部以下が好ましく、15質量部以下がより好ましく、10質量部以下が更に好ましい。 The content of the thermoacid generator is preferably 0.01 part by mass or more, and more preferably 0.1 part by mass or more with respect to 100 parts by mass of the specific resin. By containing 0.01 part by mass or more, the cross-linking reaction is promoted, so that the mechanical properties and solvent resistance of the organic film can be further improved. Further, from the viewpoint of electrical insulation of the organic film, 20 parts by mass or less is preferable, 15 parts by mass or less is more preferable, and 10 parts by mass or less is further preferable.
<オニウム塩>
 本発明の硬化性樹脂組成物は、オニウム塩を更に含んでもよい。
 特に、本発明の硬化性樹脂組成物が特定樹脂としてポリイミド前駆体又はポリベンゾオキサゾール前駆体を含む場合、オニウム塩を含むことが好ましい。
 オニウム塩の種類等は特に定めるものではないが、アンモニウム塩、イミニウム塩、スルホニウム塩、ヨードニウム塩又はホスホニウム塩が好ましく挙げられる。
 これらの中でも、熱安定性が高い観点からはアンモニウム塩又はイミニウム塩が好ましく、ポリマーとの相溶性の観点からはスルホニウム塩、ヨードニウム塩又はホスホニウム塩が好ましい。
<Onium salt>
The curable resin composition of the present invention may further contain an onium salt.
In particular, when the curable resin composition of the present invention contains a polyimide precursor or a polybenzoxazole precursor as a specific resin, it preferably contains an onium salt.
The type of onium salt and the like are not particularly specified, but ammonium salt, iminium salt, sulfonium salt, iodonium salt and phosphonium salt are preferably mentioned.
Among these, an ammonium salt or an iminium salt is preferable from the viewpoint of high thermal stability, and a sulfonium salt, an iodonium salt or a phosphonium salt is preferable from the viewpoint of compatibility with a polymer.
 また、オニウム塩はオニウム構造を有するカチオンとアニオンとの塩であり、上記カチオンとアニオンとは、共有結合を介して結合していてもよいし、共有結合を介して結合していなくてもよい。
 すなわち、オニウム塩は、同一の分子構造内に、カチオン部と、アニオン部と、を有する分子内塩であってもよいし、それぞれ別分子であるカチオン分子と、アニオン分子と、がイオン結合した分子間塩であってもよいが、分子間塩であることが好ましい。また、本発明の硬化性樹脂組成物において、上記カチオン部又はカチオン分子と、上記アニオン部又はアニオン分子と、はイオン結合により結合されていてもよいし、解離していてもよい。
 オニウム塩におけるカチオンとしては、アンモニウムカチオン、ピリジニウムカチオン、スルホニウムカチオン、ヨードニウムカチオン又はホスホニウムカチオンが好ましく、テトラアルキルアンモニウムカチオン、スルホニウムカチオン及びヨードニウムカチオンよりなる群から選択される少なくとも1種のカチオンがより好ましい。
The onium salt is a salt of a cation and an anion having an onium structure, and the cation and anion may or may not be bonded via a covalent bond. ..
That is, the onium salt may be an intramolecular salt having a cation portion and an anion portion in the same molecular structure, or a cation molecule and an anion molecule, which are different molecules, are ionically bonded. It may be an intermolecular salt, but it is preferably an intermolecular salt. Further, in the curable resin composition of the present invention, the cation portion or the cation molecule and the anion portion or the anion molecule may be bonded or dissociated by an ionic bond.
As the cation in the onium salt, an ammonium cation, a pyridinium cation, a sulfonium cation, an iodonium cation or a phosphonium cation is preferable, and at least one cation selected from the group consisting of a tetraalkylammonium cation, a sulfonium cation and an iodonium cation is more preferable.
 本発明において用いられるオニウム塩は、後述する熱塩基発生剤であってもよい。
 熱塩基発生剤とは、加熱により塩基を発生する化合物をいい、例えば、40℃以上に加熱すると塩基を発生する化合物等が挙げられる。
 オニウム塩としては、例えば、国際公開第2018/043262号の段落0122~0138に記載のオニウム塩等が挙げられる。また、その他、ポリイミド前駆体の分野で使用されるオニウム塩を、特に制限なく使用することが可能である。
The onium salt used in the present invention may be a thermobase generator described later.
The thermal base generator refers to a compound that generates a base by heating, and examples thereof include a compound that generates a base when heated to 40 ° C. or higher.
Examples of the onium salt include the onium salt described in paragraphs 0122 to 0138 of International Publication No. 2018/043262. In addition, onium salts used in the field of polyimide precursors can be used without particular limitation.
 本発明の硬化性樹脂組成物がオニウム塩を含む場合、オニウム塩の含有量は、本発明の硬化性樹脂組成物の全固形分に対し、0.1~50質量%が好ましい。下限は、0.5質量%以上がより好ましく、0.85質量%以上が更に好ましく、1質量%以上が一層好ましい。上限は、30質量%以下がより好ましく、20質量%以下が更に好ましく、10質量%以下が一層好ましく、5質量%以下であってもよく、4質量%以下であってもよい。
 オニウム塩は、1種又は2種以上を用いることができる。2種以上を用いる場合は、合計量が上記範囲であることが好ましい。
When the curable resin composition of the present invention contains an onium salt, the content of the onium salt is preferably 0.1 to 50% by mass with respect to the total solid content of the curable resin composition of the present invention. The lower limit is more preferably 0.5% by mass or more, further preferably 0.85% by mass or more, and even more preferably 1% by mass or more. The upper limit is more preferably 30% by mass or less, further preferably 20% by mass or less, further preferably 10% by mass or less, 5% by mass or less, or 4% by mass or less.
As the onium salt, one kind or two or more kinds can be used. When two or more kinds are used, the total amount is preferably in the above range.
<熱塩基発生剤>
 本発明の硬化性樹脂組成物は、熱塩基発生剤を更に含んでもよい。
 特に、本発明の硬化性樹脂組成物が特定樹脂としてポリイミド前駆体又はポリベンゾオキサゾール前駆体を含む場合、熱塩基発生剤を含むことが好ましい。
 他の熱塩基発生剤は、上述のオニウム塩に該当する化合物であってもよいし、上述のオニウム塩以外の熱塩基発生剤であってもよい。
 上述のオニウム塩以外の熱塩基発生剤としては、ノニオン系熱塩基発生剤が挙げられる。
 ノニオン系熱塩基発生剤としては、式(B1)又は式(B2)で表される化合物が挙げられる。
Figure JPOXMLDOC01-appb-C000040
<Thermal base generator>
The curable resin composition of the present invention may further contain a thermosetting agent.
In particular, when the curable resin composition of the present invention contains a polyimide precursor or a polybenzoxazole precursor as the specific resin, it is preferable to contain a thermosetting agent.
The other thermobase generator may be a compound corresponding to the above-mentioned onium salt, or may be a thermobase generator other than the above-mentioned onium salt.
Examples of the thermobase generator other than the above-mentioned onium salt include nonionic thermobase generators.
Examples of the nonionic thermobase generator include compounds represented by the formula (B1) or the formula (B2).
Figure JPOXMLDOC01-appb-C000040
 式(B1)及び式(B2)中、Rb、Rb及びRbはそれぞれ独立に、第3級アミン構造を有しない有機基、ハロゲン原子又は水素原子である。ただし、Rb及びRbが同時に水素原子となることはない。また、Rb、Rb及びRbはいずれもカルボキシ基を有することはない。なお、本明細書で第三級アミン構造とは、3価の窒素原子の3つの結合手がいずれも炭化水素系の炭素原子と共有結合している構造を指す。したがって、結合した炭素原子がカルボニル基をなす炭素原子の場合、つまり窒素原子とともにアミド基を形成する場合はこの限りではない。 In formulas (B1) and (B2), Rb 1 , Rb 2 and Rb 3 are independently organic groups, halogen atoms or hydrogen atoms having no tertiary amine structure. However, Rb 1 and Rb 2 do not become hydrogen atoms at the same time. Further, none of Rb 1 , Rb 2 and Rb 3 has a carboxy group. In the present specification, the tertiary amine structure refers to a structure in which all three bonds of a trivalent nitrogen atom are covalently bonded to a hydrocarbon-based carbon atom. Therefore, this does not apply when the bonded carbon atom is a carbon atom forming a carbonyl group, that is, when an amide group is formed together with a nitrogen atom.
 式(B1)、(B2)中、Rb、Rb及びRbは、これらのうち少なくとも1つが環状構造を含むことが好ましく、少なくとも2つが環状構造を含むことがより好ましい。環状構造としては、単環及び縮合環のいずれであってもよく、単環又は単環が2つ縮合した縮合環が好ましい。単環は、5員環又は6員環が好ましく、6員環が好ましい。単環は、シクロヘキサン環及びベンゼン環が好ましく、シクロヘキサン環がより好ましい。 In formulas (B1) and (B2), it is preferable that at least one of Rb 1 , Rb 2 and Rb 3 contains a cyclic structure, and it is more preferable that at least two of them contain a cyclic structure. The cyclic structure may be either a monocyclic ring or a condensed ring, and a monocyclic ring or a condensed ring in which two monocyclic rings are condensed is preferable. The single ring is preferably a 5-membered ring or a 6-membered ring, and preferably a 6-membered ring. As the single ring, a cyclohexane ring and a benzene ring are preferable, and a cyclohexane ring is more preferable.
 より具体的にRb及びRbは、水素原子、アルキル基(炭素数1~24が好ましく、2~18がより好ましく、3~12が更に好ましい)、アルケニル基(炭素数2~24が好ましく、2~18がより好ましく、3~12が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~10が更に好ましい)、又はアリールアルキル基(炭素数7~25が好ましく、7~19がより好ましく、7~12が更に好ましい)であることが好ましい。これらの基は、本発明の効果を奏する範囲で置換基を有していてもよい。RbとRbとは互いに結合して環を形成していてもよい。形成される環としては、4~7員の含窒素複素環が好ましい。Rb及びRbは特に、置換基を有してもよい直鎖、分岐、又は環状のアルキル基(炭素数1~24が好ましく、2~18がより好ましく、3~12が更に好ましい)であることが好ましく、置換基を有してもよいシクロアルキル基(炭素数3~24が好ましく、3~18がより好ましく、3~12が更に好ましい)であることがより好ましく、置換基を有してもよいシクロヘキシル基が更に好ましい。 More specifically, Rb 1 and Rb 2 are hydrogen atoms, alkyl groups (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms), and alkenyl groups (preferably 2 to 24 carbon atoms). , 2-18 is more preferred, 3-12 is more preferred), aryl groups (6-22 carbons are preferred, 6-18 are more preferred, 6-10 are more preferred), or arylalkyl groups (7 carbons). ~ 25 is preferable, 7 to 19 is more preferable, and 7 to 12 is even more preferable). These groups may have substituents as long as the effects of the present invention are exhibited. Rb 1 and Rb 2 may be coupled to each other to form a ring. As the ring to be formed, a 4- to 7-membered nitrogen-containing heterocycle is preferable. Rb 1 and Rb 2 are particularly linear, branched, or cyclic alkyl groups that may have substituents (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms). It is more preferably a cycloalkyl group which may have a substituent (preferably 3 to 24 carbon atoms, more preferably 3 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms) and having a substituent. A cyclohexyl group which may be used is more preferable.
 Rbとしては、アルキル基(炭素数1~24が好ましく、2~18がより好ましく、3~12が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~10が更に好ましい)、アルケニル基(炭素数2~24が好ましく、2~12がより好ましく、2~6が更に好ましい)、アリールアルキル基(炭素数7~23が好ましく、7~19がより好ましく、7~12が更に好ましい)、アリールアルケニル基(炭素数8~24が好ましく、8~20がより好ましく、8~16が更に好ましい)、アルコキシル基(炭素数1~24が好ましく、2~18がより好ましく、3~12が更に好ましい)、アリールオキシ基(炭素数6~22が好ましく、6~18がより好ましく、6~12が更に好ましい)、又はアリールアルキルオキシ基(炭素数7~23が好ましく、7~19がより好ましく、7~12が更に好ましい)が挙げられる。中でも、シクロアルキル基(炭素数3~24が好ましく、3~18がより好ましく、3~12が更に好ましい)、アリールアルケニル基、アリールアルキルオキシ基が好ましい。Rbには更に本発明の効果を奏する範囲で置換基を有していてもよい。 As Rb 3 , an alkyl group (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, further preferably 3 to 12 carbon atoms) and an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, 6 to 6). ~ 10 is more preferable), alkoxy group (2 to 24 carbon atoms are preferable, 2 to 12 is more preferable, 2 to 6 is more preferable), arylalkyl group (7 to 23 carbon atoms is preferable, 7 to 19 is more preferable). Preferably, 7 to 12 is more preferable), an arylalkenyl group (8 to 24 carbon atoms is preferable, 8 to 20 is more preferable, 8 to 16 is more preferable), and an alkoxyl group (1 to 24 carbon atoms is preferable, 2 to 2 to 24). 18 is more preferable, 3 to 12 is more preferable), an aryloxy group (6 to 22 carbon atoms is preferable, 6 to 18 is more preferable, 6 to 12 is more preferable), or an arylalkyloxy group (7 to 12 carbon atoms is more preferable). 23 is preferable, 7 to 19 is more preferable, and 7 to 12 is further preferable). Among them, a cycloalkyl group (preferably having 3 to 24 carbon atoms, more preferably 3 to 18 carbon atoms, still more preferably 3 to 12 carbon atoms), an arylalkenyl group, and an arylalkyloxy group are preferable. Rb 3 may further have a substituent as long as the effects of the present invention are exhibited.
 式(B1)で表される化合物は、下記式(B1-1)又は下記式(B1-2)で表される化合物であることが好ましい。
Figure JPOXMLDOC01-appb-C000041
The compound represented by the formula (B1) is preferably a compound represented by the following formula (B1-1) or the following formula (B1-2).
Figure JPOXMLDOC01-appb-C000041
 式中、Rb11及びRb12、並びに、Rb31及びRb32は、それぞれ、式(B1)におけるRb及びRbと同じである。
 Rb13はアルキル基(炭素数1~24が好ましく、2~18がより好ましく、3~12が更に好ましい)、アルケニル基(炭素数2~24が好ましく、2~18がより好ましく、3~12が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~12が更に好ましい)、アリールアルキル基(炭素数7~23が好ましく、7~19がより好ましく、7~12が更に好ましい)であり、本発明の効果を奏する範囲で置換基を有していてもよい。中でも、Rb13はアリールアルキル基が好ましい。
In the formula, Rb 11 and Rb 12 , and Rb 31 and Rb 32 are the same as Rb 1 and Rb 2 in the formula (B1), respectively.
Rb 13 has an alkyl group (preferably 1 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, further preferably 3 to 12 carbon atoms) and an alkenyl group (preferably 2 to 24 carbon atoms, more preferably 2 to 18 carbon atoms, 3 to 12 carbon atoms). Is more preferable), an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, further preferably 6 to 12 carbon atoms), an arylalkyl group (preferably 7 to 23 carbon atoms, more preferably 7 to 19 carbon atoms). 7 to 12 is more preferable), and a substituent may be provided as long as the effects of the present invention are exhibited. Of these, Rb 13 is preferably an arylalkyl group.
 Rb33及びRb34は、それぞれ独立に、水素原子、アルキル基(炭素数1~12が好ましく、1~8がより好ましく、1~3が更に好ましい)、アルケニル基(炭素数2~12が好ましく、2~8がより好ましく、2~3が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~10が更に好ましい)、アリールアルキル基(炭素数7~23が好ましく、7~19がより好ましく、7~11が更に好ましい)であり、水素原子が好ましい。 Rb 33 and Rb 34 independently have a hydrogen atom, an alkyl group (preferably 1 to 12 carbon atoms, more preferably 1 to 8 carbon atoms, still more preferably 1 to 3 carbon atoms), and an alkenyl group (preferably 2 to 12 carbon atoms). , 2 to 8 are more preferable, 2 to 3 are more preferable), aryl groups (6 to 22 carbon atoms are preferable, 6 to 18 are more preferable, 6 to 10 are more preferable), arylalkyl groups (7 to 7 to carbon atoms are more preferable). 23 is preferable, 7 to 19 is more preferable, and 7 to 11 is even more preferable), and a hydrogen atom is preferable.
 Rb35は、アルキル基(炭素数1~24が好ましく、1~12がより好ましく、3~8が更に好ましい)、アルケニル基(炭素数2~12が好ましく、2~10がより好ましく、3~8が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~12が更に好ましい)、アリールアルキル基(炭素数7~23が好ましく、7~19がより好ましく、7~12が更に好ましい)であり、アリール基が好ましい。 Rb 35 is an alkyl group (preferably 1 to 24 carbon atoms, more preferably 1 to 12 carbon atoms, further preferably 3 to 8 carbon atoms), an alkenyl group (preferably 2 to 12 carbon atoms, more preferably 2 to 10 carbon atoms, 3 to 10 carbon atoms). 8 is more preferable), aryl group (6 to 22 carbon atoms is preferable, 6 to 18 is more preferable, 6 to 12 is more preferable), arylalkyl group (7 to 23 carbon atoms is preferable, 7 to 19 is more preferable). , 7-12 is more preferable), and an aryl group is preferable.
 式(B1-1)で表される化合物は、式(B1-1a)で表される化合物もまた好ましい。
Figure JPOXMLDOC01-appb-C000042
As the compound represented by the formula (B1-1), the compound represented by the formula (B1-1a) is also preferable.
Figure JPOXMLDOC01-appb-C000042
 Rb11及びRb12は式(B1-1)におけるRb11及びRb12と同義である。
 Rb15及びRb16は水素原子、アルキル基(炭素数1~12が好ましく、1~6がより好ましく、1~3が更に好ましい)、アルケニル基(炭素数2~12が好ましく、2~6がより好ましく、2~3が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~10が更に好ましい)、アリールアルキル基(炭素数7~23が好ましく、7~19がより好ましく、7~11が更に好ましい)であり、水素原子又はメチル基が好ましい。
 Rb17はアルキル基(炭素数1~24が好ましく、1~12がより好ましく、3~8が更に好ましい)、アルケニル基(炭素数2~12が好ましく、2~10がより好ましく、3~8が更に好ましい)、アリール基(炭素数6~22が好ましく、6~18がより好ましく、6~12が更に好ましい)、アリールアルキル基(炭素数7~23が好ましく、7~19がより好ましく、7~12が更に好ましい)であり、中でもアリール基が好ましい。
Rb 11 and Rb 12 have the same meanings as Rb 11 and Rb 12 in the formula (B1-1).
Rb 15 and Rb 16 are a hydrogen atom, an alkyl group (preferably 1 to 12 carbon atoms, more preferably 1 to 6 carbon atoms, further preferably 1 to 3 carbon atoms), and an alkenyl group (preferably 2 to 12 carbon atoms, 2 to 6 carbon atoms). More preferably, 2 to 3 are more preferable), an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, further preferably 6 to 10 carbon atoms), and an arylalkyl group (preferably 7 to 23 carbon atoms, 7). ~ 19 is more preferable, and 7 to 11 is more preferable), and a hydrogen atom or a methyl group is preferable.
Rb 17 is an alkyl group (preferably 1 to 24 carbon atoms, more preferably 1 to 12 carbon atoms, further preferably 3 to 8 carbon atoms), an alkenyl group (preferably 2 to 12 carbon atoms, more preferably 2 to 10 carbon atoms, 3 to 8 carbon atoms). Is more preferable), an aryl group (preferably 6 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, further preferably 6 to 12 carbon atoms), an arylalkyl group (preferably 7 to 23 carbon atoms, more preferably 7 to 19 carbon atoms). 7 to 12 is more preferable), and an aryl group is particularly preferable.
 ノニオン系熱塩基発生剤の分子量は、800以下であることが好ましく、600以下であることがより好ましく、500以下であることが更に好ましい。下限としては、100以上であることが好ましく、200以上であることがより好ましく、300以上であることが更に好ましい。 The molecular weight of the nonionic thermobase generator is preferably 800 or less, more preferably 600 or less, and even more preferably 500 or less. The lower limit is preferably 100 or more, more preferably 200 or more, and even more preferably 300 or more.
 上述のオニウム塩のうち、熱塩基発生剤である化合物の具体例、又は、上述のオニウム塩以外の熱塩基発生剤の具体例としては、以下の化合物を挙げることができる。 Among the above-mentioned onium salts, specific examples of compounds that are thermal base generators or specific examples of thermal base generators other than the above-mentioned onium salts include the following compounds.
Figure JPOXMLDOC01-appb-C000043
Figure JPOXMLDOC01-appb-C000043
Figure JPOXMLDOC01-appb-C000044
Figure JPOXMLDOC01-appb-C000044
Figure JPOXMLDOC01-appb-C000045
Figure JPOXMLDOC01-appb-C000045
 他の熱塩基発生剤の含有量は、本発明の硬化性樹脂組成物の全固形分に対し、0.1~50質量%が好ましい。下限は、0.5質量%以上がより好ましく、1質量%以上が更に好ましい。上限は、30質量%以下がより好ましく、20質量%以下が更に好ましい。熱塩基発生剤は、1種又は2種以上を用いることができる。2種以上を用いる場合は、合計量が上記範囲であることが好ましい。 The content of the other thermosetting agent is preferably 0.1 to 50% by mass with respect to the total solid content of the curable resin composition of the present invention. The lower limit is more preferably 0.5% by mass or more, and further preferably 1% by mass or more. The upper limit is more preferably 30% by mass or less, further preferably 20% by mass or less. As the thermobase generator, one kind or two or more kinds can be used. When two or more kinds are used, the total amount is preferably in the above range.
<架橋剤>
 本発明の硬化性樹脂組成物は、架橋剤を含むことが好ましい。
 架橋剤としては、ラジカル架橋剤、又は、他の架橋剤が挙げられる。
<Crosslinking agent>
The curable resin composition of the present invention preferably contains a cross-linking agent.
Examples of the cross-linking agent include radical cross-linking agents and other cross-linking agents.
<ラジカル架橋剤>
 本発明の硬化性樹脂組成物は、ラジカル架橋剤を更に含むことが好ましい。
 ラジカル架橋剤は、ラジカル重合性基を有する化合物である。ラジカル重合性基としては、エチレン性不飽和結合を含む基が好ましい。上記エチレン性不飽和結合を含む基としては、ビニル基、アリル基、ビニルフェニル基、(メタ)アクリロイル基などのエチレン性不飽和結合を有する基が挙げられる。
 これらの中でも、上記エチレン性不飽和結合を含む基としては、(メタ)アクリロイル基が好ましく、反応性の観点からは、(メタ)アクリロキシ基がより好ましい。
<Radical cross-linking agent>
The curable resin composition of the present invention preferably further contains a radical cross-linking agent.
The radical cross-linking agent is a compound having a radically polymerizable group. As the radically polymerizable group, a group containing an ethylenically unsaturated bond is preferable. Examples of the group containing an ethylenically unsaturated bond include a group having an ethylenically unsaturated bond such as a vinyl group, an allyl group, a vinylphenyl group, and a (meth) acryloyl group.
Among these, the (meth) acryloyl group is preferable as the group containing the ethylenically unsaturated bond, and the (meth) acryloyl group is more preferable from the viewpoint of reactivity.
 ラジカル架橋剤は、エチレン性不飽和結合を1個以上有する化合物であればよいが、2以上有する化合物であることがより好ましい。
 エチレン性不飽和結合を2個有する化合物は、上記エチレン性不飽和結合を含む基を2個有する化合物であることが好ましい。
 また、得られるパターンの膜強度の観点からは、本発明の硬化性樹脂組成物は、ラジカル架橋剤として、エチレン性不飽和結合を3個以上有する化合物を含むことが好ましい。上記エチレン性不飽和結合を3個以上有する化合物としては、エチレン性不飽和結合を3~15個有する化合物が好ましく、エチレン性不飽和結合を3~10個有する化合物がより好ましく、3~6個有する化合物が更に好ましい。
 また、上記エチレン性不飽和結合を3個以上有する化合物は、上記エチレン性不飽和結合を含む基を3個以上有する化合物であることが好ましく、3~15個有する化合物であることがより好ましく、3~10個有する化合物であることが更に好ましく、3~6個有する化合物であることが特に好ましい。
 また、得られるパターンの膜強度の観点からは、本発明の硬化性樹脂組成物は、エチレン性不飽和結合を2個有する化合物と、上記エチレン性不飽和結合を3個以上有する化合物とを含むことも好ましい。
The radical cross-linking agent may be a compound having one or more ethylenically unsaturated bonds, but a compound having two or more ethylenically unsaturated bonds is more preferable.
The compound having two ethylenically unsaturated bonds is preferably a compound having two groups containing the above ethylenically unsaturated bonds.
Further, from the viewpoint of the film strength of the obtained pattern, the curable resin composition of the present invention preferably contains a compound having three or more ethylenically unsaturated bonds as a radical cross-linking agent. As the compound having 3 or more ethylenically unsaturated bonds, a compound having 3 to 15 ethylenically unsaturated bonds is preferable, and a compound having 3 to 10 ethylenically unsaturated bonds is more preferable, and 3 to 6 compounds are more preferable. The compound having is more preferable.
The compound having 3 or more ethylenically unsaturated bonds is preferably a compound having 3 or more groups containing the ethylenically unsaturated bond, and more preferably a compound having 3 to 15 ethylenically unsaturated bonds. A compound having 3 to 10 is more preferable, and a compound having 3 to 6 is particularly preferable.
Further, from the viewpoint of the film strength of the obtained pattern, the curable resin composition of the present invention contains a compound having two ethylenically unsaturated bonds and a compound having three or more ethylenically unsaturated bonds. It is also preferable.
 ラジカル架橋剤の分子量は、2,000以下が好ましく、1,500以下がより好ましく、900以下が更に好ましい。ラジカル架橋剤の分子量の下限は、100以上が好ましい。 The molecular weight of the radical cross-linking agent is preferably 2,000 or less, more preferably 1,500 or less, and even more preferably 900 or less. The lower limit of the molecular weight of the radical cross-linking agent is preferably 100 or more.
 ラジカル架橋剤の具体例としては、不飽和カルボン酸(例えば、アクリル酸、メタクリル酸、イタコン酸、クロトン酸、イソクロトン酸、マレイン酸など)やそのエステル類、アミド類が挙げられ、好ましくは、不飽和カルボン酸と多価アルコール化合物とのエステル、及び不飽和カルボン酸と多価アミン化合物とのアミド類である。また、ヒドロキシ基やアミノ基、スルファニル基等の求核性置換基を有する不飽和カルボン酸エステル又はアミド類と、単官能若しくは多官能イソシアネート類又はエポキシ類との付加反応物や、単官能若しくは多官能のカルボン酸との脱水縮合反応物等も好適に使用される。また、イソシアネート基やエポキシ基等の親電子性置換基を有する不飽和カルボン酸エステル又はアミド類と、単官能若しくは多官能のアルコール類、アミン類、チオール類との付加反応物、更に、ハロゲノ基やトシルオキシ基等の脱離性置換基を有する不飽和カルボン酸エステル又はアミド類と、単官能若しくは多官能のアルコール類、アミン類、チオール類との置換反応物も好適である。また、別の例として、上記の不飽和カルボン酸の代わりに、不飽和ホスホン酸、スチレン等のビニルベンゼン誘導体、ビニルエーテル、アリルエーテル等に置き換えた化合物群を使用することも可能である。具体例としては、特開2016-027357号公報の段落0113~0122の記載を参酌でき、これらの内容は本明細書に組み込まれる。 Specific examples of the radical cross-linking agent include unsaturated carboxylic acids (for example, acrylic acid, methacrylic acid, itaconic acid, crotonic acid, isocrotonic acid, maleic acid, etc.), esters thereof, and amides, which are preferably unsuitable. Esters of saturated carboxylic acid and polyhydric alcohol compound, and amides of unsaturated carboxylic acid and polyvalent amine compound. Further, an addition reaction product of an unsaturated carboxylic acid ester or amide having a nucleophilic substituent such as a hydroxy group, an amino group or a sulfanyl group with a monofunctional or polyfunctional isocyanate or an epoxy, or a monofunctional or polyfunctional group. A dehydration condensation reaction product with a functional carboxylic acid is also preferably used. Further, an addition reaction product of an unsaturated carboxylic acid ester or amide having a parentionic substituent such as an isocyanate group or an epoxy group with a monofunctional or polyfunctional alcohol, an amine or a thiol, and a halogeno group. Substitution reaction products of unsaturated carboxylic acid esters or amides having a releasable substituent such as tosyloxy group and monofunctional or polyfunctional alcohols, amines and thiols are also suitable. Further, as another example, it is also possible to use a compound group in which the unsaturated carboxylic acid is replaced with an unsaturated phosphonic acid, a vinylbenzene derivative such as styrene, a vinyl ether, an allyl ether or the like. As a specific example, the description in paragraphs 0113 to 0122 of JP-A-2016-0273557 can be referred to, and these contents are incorporated in the present specification.
 また、ラジカル架橋剤は、常圧下で100℃以上の沸点を持つ化合物も好ましい。その例としては、ポリエチレングリコールジ(メタ)アクリレート、トリメチロールエタントリ(メタ)アクリレート、ネオペンチルグリコールジ(メタ)アクリレート、ペンタエリスリトールトリ(メタ)アクリレート、ペンタエリスリトールテトラ(メタ)アクリレート、ジペンタエリスリトールペンタ(メタ)アクリレート、ジペンタエリスリトールヘキサ(メタ)アクリレート、ヘキサンジオール(メタ)アクリレート、トリメチロールプロパントリ(アクリロイルオキシプロピル)エーテル、トリ(アクリロイルオキシエチル)イソシアヌレート、グリセリンやトリメチロールエタン等の多官能アルコールにエチレンオキサイドやプロピレンオキサイドを付加させた後、(メタ)アクリレート化した化合物、特公昭48-041708号公報、特公昭50-006034号公報、特開昭51-037193号各公報に記載されているようなウレタン(メタ)アクリレート類、特開昭48-064183号、特公昭49-043191号、特公昭52-030490号各公報に記載されているポリエステルアクリレート類、エポキシ樹脂と(メタ)アクリル酸との反応生成物であるエポキシアクリレート類等の多官能のアクリレートやメタクリレート及びこれらの混合物を挙げることができる。また、特開2008-292970号公報の段落0254~0257に記載の化合物も好適である。また、多官能カルボン酸にグリシジル(メタ)アクリレート等の環状エーテル基とエチレン性不飽和結合を有する化合物を反応させて得られる多官能(メタ)アクリレートなども挙げることができる。 Further, as the radical cross-linking agent, a compound having a boiling point of 100 ° C. or higher under normal pressure is also preferable. Examples are polyethylene glycol di (meth) acrylate, trimethyl ethanetri (meth) acrylate, neopentyl glycol di (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol. Penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, hexanediol (meth) acrylate, trimethylpropantri (acryloyloxypropyl) ether, tri (acryloyloxyethyl) isocyanurate, glycerin, trimethylolethane, etc. A compound obtained by adding ethylene oxide or propylene oxide to a functional alcohol and then (meth) acrylated, is described in JP-A-48-041708, JP-A-50-006034, and JP-A-51-0371993. Urethane (meth) acrylates, such as those described in JP-A-48-064183, JP-A-49-043191, and JP-A-52-030490, the polyester acrylates, epoxy resins and (meth) acrylics. Examples thereof include polyfunctional acrylates and methacrylates such as epoxy acrylates which are reaction products with acids, and mixtures thereof. Further, the compounds described in paragraphs 0254 to 0257 of JP-A-2008-292970 are also suitable. Further, a polyfunctional (meth) acrylate obtained by reacting a polyfunctional carboxylic acid with a cyclic ether group such as glycidyl (meth) acrylate and a compound having an ethylenically unsaturated bond can also be mentioned.
 また、上述以外の好ましいラジカル架橋剤として、特開2010-160418号公報、特開2010-129825号公報、特許第4364216号公報等に記載される、フルオレン環を有し、エチレン性不飽和結合を有する基を2個以上有する化合物や、カルド樹脂も使用することが可能である。 Further, as a preferable radical cross-linking agent other than the above, it has a fluorene ring and has an ethylenically unsaturated bond, which is described in JP-A-2010-160418, JP-A-2010-129825, Patent No. 4364216 and the like. Compounds having two or more radicals and cardo resins can also be used.
 更に、その他の例としては、特公昭46-043946号公報、特公平01-040337号公報、特公平01-040336号公報に記載の特定の不飽和化合物や、特開平02-025493号公報に記載のビニルホスホン酸系化合物等もあげることができる。また、特開昭61-022048号公報に記載のペルフルオロアルキル基を含む化合物を用いることもできる。更に日本接着協会誌 vol.20、No.7、300~308ページ(1984年)に光重合性モノマー及びオリゴマーとして紹介されているものも使用することができる。 Further, as other examples, the specific unsaturated compounds described in Japanese Patent Publication No. 46-043946, Japanese Square Root 01-040337, and Japanese Square Root 01-040336, and Japanese Patent Application Laid-Open No. 02-025493. Vinyl phosphonic acid compounds and the like can also be mentioned. Further, a compound containing a perfluoroalkyl group described in JP-A-61-022048 can also be used. Furthermore, the magazine of the Japan Adhesive Association vol. 20, No. Those introduced as photopolymerizable monomers and oligomers on pages 7, 300-308 (1984) can also be used.
 上記のほか、特開2015-034964号公報の段落0048~0051に記載の化合物、国際公開第2015/199219号の段落0087~0131に記載の化合物も好ましく用いることができ、これらの内容は本明細書に組み込まれる。 In addition to the above, the compounds described in paragraphs 0048 to 0051 of JP-A-2015-034964 and the compounds described in paragraphs 0087 to 0131 of International Publication No. 2015/199219 can also be preferably used, and the contents thereof are described in the present specification. Incorporated into the book.
 また、特開平10-062986号公報において式(1)及び式(2)としてその具体例と共に記載の、多官能アルコールにエチレンオキサイドやプロピレンオキサイドを付加させた後に(メタ)アクリレート化した化合物も、ラジカル架橋剤として用いることができる。 Further, the compound described in Japanese Patent Application Laid-Open No. 10-062986 together with specific examples as formulas (1) and (2) after addition of ethylene oxide or propylene oxide to a polyfunctional alcohol and then (meth) acrylated is also used. It can be used as a radical cross-linking agent.
 更に、特開2015-187211号公報の段落0104~0131に記載の化合物もラジカル架橋剤として用いることができ、これらの内容は本明細書に組み込まれる。 Further, the compounds described in paragraphs 0104 to 0131 of JP-A-2015-187211 can also be used as radical cross-linking agents, and their contents are incorporated in the present specification.
 ラジカル架橋剤としては、ジペンタエリスリトールトリアクリレート(市販品としては KAYARAD D-330;日本化薬(株)製)、ジペンタエリスリトールテトラアクリレート(市販品としては KAYARAD D-320;日本化薬(株)製、A-TMMT:新中村化学工業(株)製)、ジペンタエリスリトールペンタ(メタ)アクリレート(市販品としては KAYARAD D-310;日本化薬(株)製)、ジペンタエリスリトールヘキサ(メタ)アクリレート(市販品としては KAYARAD DPHA;日本化薬(株)製、A-DPH;新中村化学工業社製)、及びこれらの(メタ)アクリロイル基がエチレングリコール残基又はプロピレングリコール残基を介して結合している構造が好ましい。これらのオリゴマータイプも使用できる。 As radical cross-linking agents, dipentaerythritol triacrylate (commercially available KAYARAD D-330; manufactured by Nippon Kayaku Co., Ltd.), dipentaerythritol tetraacrylate (commercially available KAYARAD D-320; Nihon Kayaku Co., Ltd.) ), A-TMMT: Shin-Nakamura Chemical Industry Co., Ltd.), Dipentaerythritol penta (meth) acrylate (commercially available KAYARAD D-310; Nippon Kayaku Co., Ltd.), Dipentaerythritol hexa (meth) ) Acrylate (commercially available KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd., A-DPH; manufactured by Shin-Nakamura Chemical Industry Co., Ltd.), and these (meth) acryloyl groups are mediated by ethylene glycol residues or propylene glycol residues. A structure that is bonded together is preferable. These oligomer types can also be used.
 ラジカル架橋剤の市販品としては、例えばサートマー社製のエチレンオキシ鎖を4個有する4官能アクリレートであるSR-494、エチレンオキシ鎖を4個有する2官能メタクリレートであるサートマー社製のSR-209、231、239、日本化薬(株)製のペンチレンオキシ鎖を6個有する6官能アクリレートであるDPCA-60、イソブチレンオキシ鎖を3個有する3官能アクリレートであるTPA-330、ウレタンオリゴマーUAS-10、UAB-140(日本製紙社製)、NKエステルM-40G、NKエステル4G、NKエステルM-9300、NKエステルA-9300、UA-7200(新中村化学工業社製)、DPHA-40H(日本化薬(株)製)、UA-306H、UA-306T、UA-306I、AH-600、T-600、AI-600(共栄社化学社製)、ブレンマーPME400(日油(株)製)などが挙げられる。 Commercially available products of the radical cross-linking agent include, for example, SR-494, which is a tetrafunctional acrylate having four ethyleneoxy chains manufactured by Sartmer, and SR-209 manufactured by Sartmer, which is a bifunctional methacrylate having four ethyleneoxy chains. 231 and 239, DPCA-60, a hexafunctional acrylate having 6 pentyleneoxy chains manufactured by Nippon Kayaku Co., Ltd., TPA-330, a trifunctional acrylate having 3 isobutyleneoxy chains, and urethane oligomer UAS-10. , UAB-140 (manufactured by Nippon Paper Co., Ltd.), NK ester M-40G, NK ester 4G, NK ester M-9300, NK ester A-9300, UA-7200 (manufactured by Shin-Nakamura Chemical Industry Co., Ltd.), DPHA-40H (Japan) Chemicals (manufactured by Kayaku Co., Ltd.), UA-306H, UA-306T, UA-306I, AH-600, T-600, AI-600 (manufactured by Kyoeisha Chemical Co., Ltd.), Blemmer PME400 (manufactured by Nichiyu Co., Ltd.), etc. Can be mentioned.
 ラジカル架橋剤としては、特公昭48-041708号公報、特開昭51-037193号公報、特公平02-032293号公報、特公平02-016765号公報に記載されているようなウレタンアクリレート類や、特公昭58-049860号公報、特公昭56-017654号公報、特公昭62-039417号公報、特公昭62-039418号公報に記載のエチレンオキサイド系骨格を有するウレタン化合物類も好適である。更に、ラジカル架橋剤として、特開昭63-277653号公報、特開昭63-260909号公報、特開平01-105238号公報に記載される、分子内にアミノ構造やスルフィド構造を有する化合物を用いることもできる。 Examples of the radical cross-linking agent include urethane acrylates as described in Japanese Patent Publication No. 48-041708, Japanese Patent Application Laid-Open No. 51-037193, Japanese Patent Application Laid-Open No. 02-032293, and Japanese Patent Application Laid-Open No. 02-016765. Urethane compounds having an ethylene oxide-based skeleton described in Japanese Patent Publication No. 58-049860, Japanese Patent Publication No. 56-017654, Japanese Patent Publication No. 62-039417, and Japanese Patent Publication No. 62-039418 are also suitable. Further, as the radical cross-linking agent, compounds having an amino structure or a sulfide structure in the molecule, which are described in JP-A-63-277653, JP-A-63-260909, and JP-A-01-105238, are used. You can also do it.
 ラジカル架橋剤は、カルボキシ基、リン酸基等の酸基を有するラジカル架橋剤であってもよい。酸基を有するラジカル架橋剤は、脂肪族ポリヒドロキシ化合物と不飽和カルボン酸とのエステルが好ましく、脂肪族ポリヒドロキシ化合物の未反応のヒドロキシ基に非芳香族カルボン酸無水物を反応させて酸基を持たせたラジカル架橋剤がより好ましい。特に好ましくは、脂肪族ポリヒドロキシ化合物の未反応のヒドロキシ基に非芳香族カルボン酸無水物を反応させて酸基を持たせたラジカル架橋剤において、脂肪族ポリヒドロキシ化合物がペンタエリスリトール又はジペンタエリスリトールである化合物である。市販品としては、例えば、東亞合成(株)製の多塩基酸変性アクリルオリゴマーとして、M-510、M-520などが挙げられる。 The radical cross-linking agent may be a radical cross-linking agent having an acid group such as a carboxy group or a phosphoric acid group. The radical cross-linking agent having an acid group is preferably an ester of an aliphatic polyhydroxy compound and an unsaturated carboxylic acid, and an acid group is obtained by reacting an unreacted hydroxy group of the aliphatic polyhydroxy compound with a non-aromatic carboxylic acid anhydride. A radical cross-linking agent provided with is more preferable. Particularly preferably, in a radical cross-linking agent in which an unreacted hydroxy group of an aliphatic polyhydroxy compound is reacted with a non-aromatic carboxylic acid anhydride to give an acid group, the aliphatic polyhydroxy compound is pentaerythritol or dipentaerythritol. Is a compound. Examples of commercially available products include M-510 and M-520 as polybasic acid-modified acrylic oligomers manufactured by Toagosei Co., Ltd.
 酸基を有するラジカル架橋剤の好ましい酸価は、0.1~40mgKOH/gであり、特に好ましくは5~30mgKOH/gである。ラジカル架橋剤の酸価が上記範囲であれば、製造上の取扱性に優れ、更には、現像性に優れる。また、重合性が良好である。一方、アルカリ現像する場合の現像速度の観点では、酸基を有するラジカル架橋剤の好ましい酸価は、0.1~300mgKOH/gであり、特に好ましくは1~100mgKOH/gである。上記酸価は、JIS K 0070:1992の記載に準拠して測定される。 The acid value of the radical cross-linking agent having an acid group is preferably 0.1 to 40 mgKOH / g, and particularly preferably 5 to 30 mgKOH / g. When the acid value of the radical cross-linking agent is within the above range, it is excellent in manufacturing handleability and further excellent in developability. Moreover, the polymerizable property is good. On the other hand, from the viewpoint of the development speed in the case of alkaline development, the acid value of the radical cross-linking agent having an acid group is preferably 0.1 to 300 mgKOH / g, and particularly preferably 1 to 100 mgKOH / g. The acid value is measured according to the description of JIS K 0070: 1992.
 本発明の硬化性樹脂組成物は、パターンの解像性と膜の伸縮性の観点から、2官能のメタアクリレート又はアクリレートを用いることが好ましい。具体的な化合物としては、トリエチレングリコールジアクリレート、トリエチレングリコールジメタクリレート、テトラエチレングリコールジメタクリレート、テトラエチレングリコールジアクリレート、PEG200ジアクリレート、PEG200ジメタクリレート、PEG600ジアクリレート、PEG600ジメタクリレート、ポリテトラエチレングリコールジアクリレート、ポリテトラエチレングリコールジメタクリレート、ネオペンチルグリコールジアクリレート、ネオペンチルグリコールジメタクリレート、3-メチル-1,5-ペンタンジオールジアクリレート、1,6-ヘキサンジオールジアクリレート、1,6ヘキサンジオールジメタクリレート、ジメチロール-トリシクロデカンジアクリレート、ジメチロール-トリシクロデカンジメタクリレート、ビスフェノールAのEO付加物ジアクリレート、ビスフェノールAのEO付加物ジメタクリレート、ビスフェノールAのPO付加物ジアクリレート、ビスフェノールAのPO付加物ジメタクリレート、2-ヒドロキシー3-アクリロイロキシプロピルメタクリレート、イソシアヌル酸EO変性ジアクリレート、イソシアヌル酸変性ジメタクリレート、その他ウレタン結合を有する2官能アクリレート、ウレタン結合を有する2官能メタクリレートを使用することができる。これらは必要に応じ、2種以上を混合し使用することができる。なお、例えばPEG200ジアクリレートとは、ポリエチレングリコールジアクリレートであって、ポリエチレングリコール鎖の式量が200程度のものをいう。
 また、パターンの弾性率制御に伴う反り抑制の観点から、ラジカル架橋剤として、単官能ラジカル架橋剤を好ましく用いることができる。単官能ラジカル架橋剤としては、n-ブチル(メタ)アクリレート、2-エチルヘキシル(メタ)アクリレート、2-ヒドロキシエチル(メタ)アクリレート、ブトキシエチル(メタ)アクリレート、カルビトール(メタ)アクリレート、シクロヘキシル(メタ)アクリレート、ベンジル(メタ)アクリレート、フェノキシエチル(メタ)アクリレート、N-メチロール(メタ)アクリルアミド、グリシジル(メタ)アクリレート、ポリエチレングリコールモノ(メタ)アクリレート、ポリプロピレングリコールモノ(メタ)アクリレート等の(メタ)アクリル酸誘導体、N-ビニルピロリドン、N-ビニルカプロラクタム等のN-ビニル化合物類、アリルグリシジルエーテル、ジアリルフタレート、トリアリルトリメリテート等のアリル化合物類等が好ましく用いられる。単官能ラジカル架橋剤としては、露光前の揮発を抑制するため、常圧下で100℃以上の沸点を持つ化合物も好ましい。
For the curable resin composition of the present invention, it is preferable to use bifunctional methacrylate or acrylate from the viewpoint of pattern resolution and film elasticity. Specific compounds include triethylene glycol diacrylate, triethylene glycol dimethacrylate, tetraethylene glycol dimethacrylate, tetraethylene glycol diacrylate, PEG200 diacrylate, PEG200 dimethacrylate, PEG600 diacrylate, PEG600 dimethacrylate, and polytetraethylene. Glycol diacrylate, polytetraethylene glycol dimethacrylate, neopentyl glycol diacrylate, neopentyl glycol dimethacrylate, 3-methyl-1,5-pentanediol diacrylate, 1,6-hexanediol diacrylate, 1,6 hexanediol Dimethacrylate, dimethylol-tricyclodecanediacrylate, dimethylol-tricyclodecanedimethacrylate, EO adduct diacrylate of bisphenol A, EO adduct dimethacrylate of bisphenol A, PO adduct diacrylate of bisphenol A, PO of bisphenol A Additives Dimethacrylate, 2-hydroxy-3-acryloyloxypropyl methacrylate, isocyanuric acid EO-modified diacrylate, isocyanuric acid-modified dimethacrylate, other bifunctional acrylates having urethane bonds, and bifunctional methacrylates having urethane bonds can be used. can. If necessary, two or more of these can be mixed and used. For example, the PEG200 diacrylate is a polyethylene glycol diacrylate having a polyethylene glycol chain formula of about 200.
Further, from the viewpoint of suppressing warpage associated with the control of the elastic modulus of the pattern, a monofunctional radical cross-linking agent can be preferably used as the radical cross-linking agent. Examples of the monofunctional radical cross-linking agent include n-butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, butoxyethyl (meth) acrylate, carbitol (meth) acrylate, and cyclohexyl (meth). ) Acrylate, benzyl (meth) acrylate, phenoxyethyl (meth) acrylate, N-methylol (meth) acrylamide, glycidyl (meth) acrylate, polyethylene glycol mono (meth) acrylate, polypropylene glycol mono (meth) acrylate, etc. (meth) Acrylic acid derivatives, N-vinyl compounds such as N-vinylpyrrolidone and N-vinylcaprolactam, and allyl compounds such as allylglycidyl ether, diallyl phthalate, and triallyl trimellitate are preferably used. As the monofunctional radical cross-linking agent, a compound having a boiling point of 100 ° C. or higher under normal pressure is also preferable in order to suppress volatilization before exposure.
 ラジカル架橋剤を含有する場合、その含有量は、本発明の硬化性樹脂組成物の全固形分に対して、0質量%超60質量%以下であることが好ましい。下限は5質量%以上がより好ましい。上限は、50質量%以下であることがより好ましく、30質量%以下であることが更に好ましい。 When a radical cross-linking agent is contained, the content thereof is preferably more than 0% by mass and 60% by mass or less with respect to the total solid content of the curable resin composition of the present invention. The lower limit is more preferably 5% by mass or more. The upper limit is more preferably 50% by mass or less, and further preferably 30% by mass or less.
 ラジカル架橋剤は1種を単独で用いてもよいが、2種以上を混合して用いてもよい。2種以上を併用する場合にはその合計量が上記の範囲となることが好ましい。 One type of radical cross-linking agent may be used alone, or two or more types may be mixed and used. When two or more types are used in combination, the total amount is preferably in the above range.
<他の架橋剤>
 本発明の硬化性樹脂組成物は、上述したラジカル架橋剤とは異なる、他の架橋剤を含むことが好ましい。
 本発明において、他の架橋剤とは、上述したラジカル架橋剤以外の架橋剤をいい、上述の感光剤の感光により、組成物中の他の化合物又はその反応生成物との間で共有結合を形成する反応が促進される基を分子内に複数個有する化合物であることが好ましく、組成物中の他の化合物又はその反応生成物との間で共有結合を形成する反応が酸又は塩基の作用によって促進される基を分子内に複数個有する化合物が好ましい。
 上記酸又は塩基は、露光工程において、感光剤である光酸発生剤又は光塩基発生剤から発生する酸又は塩基であることが好ましい。
 他の架橋剤としては、メチロール基及びアルコキシメチル基よりなる群から選ばれた少なくとも1種の基を有する化合物が好ましく、メチロール基及びアルコキシメチル基よりなる群から選ばれた少なくとも1種の基が窒素原子に直接結合した構造を有する化合物がより好ましい。
 他の架橋剤としては、例えば、メラミン、グリコールウリル、尿素、アルキレン尿素、ベンゾグアナミンなどのアミノ基含有化合物にホルムアルデヒド又はホルムアルデヒドとアルコールを反応させ、上記アミノ基の水素原子をメチロール基又はアルコキシメチル基で置換した構造を有する化合物が挙げられる。これらの化合物の製造方法は特に限定されず、上記方法により製造された化合物と同様の構造を有する化合物であればよい。また、これらの化合物のメチロール基同士が自己縮合してなるオリゴマーであってもよい。
 上記のアミノ基含有化合物として、メラミンを用いた架橋剤をメラミン系架橋剤、グリコールウリル、尿素又はアルキレン尿素を用いた架橋剤を尿素系架橋剤、アルキレン尿素を用いた架橋剤をアルキレン尿素系架橋剤、ベンゾグアナミンを用いた架橋剤をベンゾグアナミン系架橋剤という。
 これらの中でも、本発明の硬化性樹脂組成物は、尿素系架橋剤及びメラミン系架橋剤よりなる群から選ばれた少なくとも1種の化合物を含むことが好ましく、後述するグリコールウリル系架橋剤及びメラミン系架橋剤よりなる群から選ばれた少なくとも1種の化合物を含むことがより好ましい。
<Other cross-linking agents>
The curable resin composition of the present invention preferably contains another cross-linking agent different from the radical cross-linking agent described above.
In the present invention, the other cross-linking agent refers to a cross-linking agent other than the above-mentioned radical cross-linking agent, and a covalent bond is formed with another compound in the composition or a reaction product thereof by exposure to the above-mentioned photosensitizer. It is preferable that the compound has a plurality of groups in the molecule for which the reaction to be formed is promoted, and the reaction of forming a covalent bond with another compound in the composition or a reaction product thereof is the action of an acid or a base. A compound having a plurality of groups promoted by the above in the molecule is preferable.
The acid or base is preferably an acid or base generated from a photoacid generator or a photobase generator which is a photosensitizer in the exposure step.
As the other cross-linking agent, a compound having at least one group selected from the group consisting of a methylol group and an alkoxymethyl group is preferable, and at least one group selected from the group consisting of a methylol group and an alkoxymethyl group is preferable. A compound having a structure directly bonded to a nitrogen atom is more preferable.
As another cross-linking agent, for example, an amino group-containing compound such as melamine, glycoluril, urea, alkylene urea, or benzoguanamine is reacted with formaldehyde or formaldehyde and alcohol, and the hydrogen atom of the amino group is changed to a methylol group or an alkoxymethyl group. Examples thereof include compounds having a substituted structure. The method for producing these compounds is not particularly limited, and any compound having the same structure as the compound produced by the above method may be used. Further, it may be an oligomer formed by self-condensing the methylol groups of these compounds.
As the above amino group-containing compound, the cross-linking agent using melamine is a melamine-based cross-linking agent, the cross-linking agent using glycoluril, urea or alkylene urea is a urea-based cross-linking agent, and the cross-linking agent using alkylene urea is an alkylene urea-based cross-linking agent. A cross-linking agent using an agent or benzoguanamine is called a benzoguanamine-based cross-linking agent.
Among these, the curable resin composition of the present invention preferably contains at least one compound selected from the group consisting of a urea-based cross-linking agent and a melamine-based cross-linking agent, and preferably contains a glycoluril-based cross-linking agent and melamine, which will be described later. It is more preferable to contain at least one compound selected from the group consisting of system cross-linking agents.
 メラミン系架橋剤の具体例としては、ヘキサメトキシメチルメラミン、ヘキサエトキシメチルメラミン、ヘキサプロポキシメチルメラミン、ヘキサブトキシブチルメラミンなどが挙げられる。 Specific examples of the melamine-based cross-linking agent include hexamethoxymethylmelamine, hexaethoxymethylmelamine, hexapropoxymethylmelamine, hexabutoxybutyl melamine and the like.
 尿素系架橋剤の具体例としては、例えばモノヒドロキシメチル化グリコールウリル、ジヒドロキシメチル化グリコールウリル、トリヒドロキシメチル化グリコールウリル、テトラヒドロキシメチル化グリコールウリル、モノメトキシメチル化グリコールウリル,ジメトキシメチル化グリコールウリル、トリメトキシメチル化グリコールウリル、テトラメトキシメチル化グリコールウリル、モノメトキシメチル化グリコールウリル、ジメトキシメチル化グリコールウリル、トリメトキシメチル化グリコールウリル、テトラエトキシメチル化グリコールウリル、モノプロポキシメチル化グリコールウリル、ジプロポキシメチル化グリコールウリル、トリプロポキシメチル化グリコールウリル、テトラプロポキシメチル化グリコールウリル、モノブトキシメチル化グリコールウリル、ジブトキシメチル化グリコールウリル、トリブトキシメチル化グリコールウリル、又は、テトラブトキシメチル化グリコールウリルなどのグリコールウリル系架橋剤;
 ビスメトキシメチル尿素、ビスエトキシメチル尿素、ビスプロポキシメチル尿素、ビスブトキシメチル尿素等の尿素系架橋剤、
 モノヒドロキシメチル化エチレン尿素又はジヒドロキシメチル化エチレン尿素、モノメトキシメチル化エチレン尿素、ジメトキシメチル化エチレン尿素、モノエトキシメチル化エチレン尿素、ジエトキシメチル化エチレン尿素、モノプロポキシメチル化エチレン尿素、ジプロポキシメチル化エチレン尿素、モノブトキシメチル化エチレン尿素、又は、ジブトキシメチル化エチレン尿素などのエチレン尿素系架橋剤、
 モノヒドロキシメチル化プロピレン尿素、ジヒドロキシメチル化プロピレン尿素、モノメトキシメチル化プロピレン尿素、ジメトキシメチル化プロピレン尿素、モノジエトキシメチル化プロピレン尿素、ジエトキシメチル化プロピレン尿素、モノプロポキシメチル化プロピレン尿素、ジプロポキシメチル化プロピレン尿素、モノブトキシメチル化プロピレン尿素、又は、ジブトキシメチル化プロピレン尿素などのプロピレン尿素系架橋剤、
 1,3-ジ(メトキシメチル)4,5-ジヒドロキシ-2-イミダゾリジノン、1,3-ジ(メトキシメチル)-4,5-ジメトキシ-2-イミダゾリジノンなどが挙げられる。
Specific examples of the urea-based cross-linking agent include monohydroxymethylated glycol uryl, dihydroxymethylated glycol uryl, trihydroxymethylated glycol uryl, tetrahydroxymethylated glycol uryl, monomethoxymethylated glycol uryl, and dimethoxymethylated glycol uryl. , Trimethoxymethylated glycol uryl, tetramethoxymethylated glycol uryl, monomethoxymethylated glycol uryl, dimethoxymethylated glycol uryl, trimethoxymethylated glycol uryl, tetraethoxymethylated glycol uryl, monopropoxymethylated glycol uryl, di Propoxymethylated glycol uryl, tripropoxymethylated glycol uryl, tetrapropoxymethylated glycol uryl, monobutoxymethylated glycol uryl, dibutoxymethylated glycol uryl, tributoxymethylated glycol uryl, or tetrabutoxymethylated glycol uryl, etc. Glycoluryl-based cross-linking agent;
Urea-based cross-linking agents such as bismethoxymethylurea, bisethoxymethylurea, bispropoxymethylurea, and bisbutoxymethylurea,
Monohydroxymethylated ethylene urea or dihydroxymethylated ethylene urea, monomethoxymethylated ethylene urea, dimethoxymethylated ethylene urea, monoethoxymethylated ethylene urea, diethoxymethylated ethylene urea, monopropoxymethylated ethylene urea, dipropoxymethyl Ethyleneurea-based cross-linking agents such as ethyleneureated ethyleneurea, monobutoxymethylated ethyleneurea, or dibutoxymethylated ethyleneurea,
Monohydroxymethylated propylene urea, dihydroxymethylated propylene urea, monomethoxymethylated propylene urea, dimethoxymethylated propylene urea, monodiethoxymethylated propylene urea, diethoxymethylated propylene urea, monopropoxymethylated propylene urea, dipropoxy A propylene urea-based cross-linking agent such as methylated propylene urea, monobutoxymethylated propylene urea, or dibutoxymethylated propylene urea,
Examples thereof include 1,3-di (methoxymethyl) 4,5-dihydroxy-2-imidazolidinone and 1,3-di (methoxymethyl) -4,5-dimethoxy-2-imidazolidinone.
 ベンゾグアナミン系架橋剤の具体例としては、例えばモノヒドロキシメチル化ベンゾグアナミン、ジヒドロキシメチル化ベンゾグアナミン、トリヒドロキシメチル化ベンゾグアナミン、テトラヒドロキシメチル化ベンゾグアナミン、モノメトキシメチル化ベンゾグアナミン、ジメトキシメチル化ベンゾグアナミン、トリメトキシメチル化ベンゾグアナミン、テトラメトキシメチル化ベンゾグアナミン、モノメトキシメチル化ベンゾグアナミン、ジメトキシメチル化ベンゾグアナミン、トリメトキシメチル化ベンゾグアナミン、テトラエトキシメチル化ベンゾグアナミン、モノプロポキシメチル化ベンゾグアナミン、ジプロポキシメチル化ベンゾグアナミン、トリプロポキシメチル化ベンゾグアナミン、テトラプロポキシメチル化ベンゾグアナミン、モノブトキシメチル化ベンゾグアナミン、ジブトキシメチル化ベンゾグアナミン、トリブトキシメチル化ベンゾグアナミン、テトラブトキシメチル化ベンゾグアナミンなどが挙げられる。 Specific examples of the benzoguanamine-based cross-linking agent include monohydroxymethylated benzoguanamine, dihydroxymethylated benzoguanamine, trihydroxymethylated benzoguanamine, tetrahydroxymethylated benzoguanamine, monomethoxymethylated benzoguanamine, dimethoxymethylated benzoguanamine, and trimethoxymethylated benzoguanamine. , Tetramethoxymethylated benzoguanamine, monomethoxymethylated benzoguanamine, dimethoxymethylated benzoguanamine, trimethoxymethylated benzoguanamine, tetraethoxymethylated benzoguanamine, monopropoxymethylated benzoguanamine, dipropoxymethylated benzoguanamine, tripropoxymethylated benzoguanamine, tetrapropoxy Methylated benzoguanamine, monobutoxymethylated benzoguanamine, dibutoxymethylated benzoguanamine, tributoxymethylated benzoguanamine, tetrabutoxymethylated benzoguanamine and the like can be mentioned.
 その他、メチロール基及びアルコキシメチル基よりなる群から選ばれた少なくとも1種の基を有する化合物としては、芳香環(好ましくはベンゼン環)にメチロール基及びアルコキシメチル基よりなる群から選ばれた少なくとも1種の基が直接結合した化合物も好適に用いられる。
 このような化合物の具体例としては、ベンゼンジメタノール、ビス(ヒドロキシメチル)クレゾール、ビス(ヒドロキシメチル)ジメトキシベンゼン、ビス(ヒドロキシメチル)ジフェニルエーテル、ビス(ヒドロキシメチル)ベンゾフェノン、ヒドロキシメチル安息香酸ヒドロキシメチルフェニル、ビス(ヒドロキシメチル)ビフェニル、ジメチルビス(ヒドロキシメチル)ビフェニル、ビス(メトキシメチル)ベンゼン、ビス(メトキシメチル)クレゾール、ビス(メトキシメチル)ジメトキシベンゼン、ビス(メトキシメチル)ジフェニルエーテル、ビス(メトキシメチル)ベンゾフェノン、メトキシメチル安息香酸メトキシメチルフェニル、ビス(メトキシメチル)ビフェニル、ジメチルビス(メトキシメチル)ビフェニル、4,4’,4’’-エチリデントリス[2,6-ビス(メトキシメチル)フェノール]、5,5’-[2,2,2‐トリフルオロ‐1‐(トリフルオロメチル)エチリデン]ビス[2‐ヒドロキシ‐1,3‐ベンゼンジメタノール]、3,3’,5,5’-テトラキス(メトキシメチル)-1,1’-ビフェニル-4,4’-ジオール等が挙げられる。
In addition, as a compound having at least one group selected from the group consisting of a methylol group and an alkoxymethyl group, at least one selected from the group consisting of a methylol group and an alkoxymethyl group on an aromatic ring (preferably a benzene ring). Compounds to which the seed groups are directly attached are also preferably used.
Specific examples of such compounds include benzenedimethanol, bis (hydroxymethyl) cresol, bis (hydroxymethyl) dimethoxybenzene, bis (hydroxymethyl) diphenyl ether, bis (hydroxymethyl) benzophenone, and hydroxymethylphenyl hydroxymethylbenzoate. , Bis (hydroxymethyl) biphenyl, dimethylbis (hydroxymethyl) biphenyl, bis (methoxymethyl) benzene, bis (methoxymethyl) cresol, bis (methoxymethyl) dimethoxybenzene, bis (methoxymethyl) diphenyl ether, bis (methoxymethyl) Benzenephenone, methoxymethylphenyl methoxymethylbenzoate, bis (methoxymethyl) biphenyl, dimethylbis (methoxymethyl) biphenyl, 4,4', 4''-ethylidentris [2,6-bis (methoxymethyl) phenol], 5 , 5'-[2,2,2-trifluoro-1- (trifluoromethyl) ethylidene] bis [2-hydroxy-1,3-benzenedimethanol], 3,3', 5,5'-tetrakis ( Methoxymethyl) -1,1'-biphenyl-4,4'-diol and the like can be mentioned.
 他の架橋剤としては市販品を用いてもよく、好適な市販品としては、46DMOC、46DMOEP(以上、旭有機材工業社製)、DML-PC、DML-PEP、DML-OC、DML-OEP、DML-34X、DML-PTBP、DML-PCHP、DML-OCHP、DML-PFP、DML-PSBP、DML-POP、DML-MBOC、DML-MBPC、DML-MTrisPC、DML-BisOC-Z、DML-BisOCHP-Z、DML-BPC、DMLBisOC-P、DMOM-PC、DMOM-PTBP、DMOM-MBPC、TriML-P、TriML-35XL、TML-HQ、TML-BP、TML-pp-BPF、TML-BPE、TML-BPA、TML-BPAF、TML-BPAP、TMOM-BP、TMOM-BPE、TMOM-BPA、TMOM-BPAF、TMOM-BPAP、HML-TPPHBA、HML-TPHAP、HMOM-TPPHBA、HMOM-TPHAP(以上、本州化学工業社製)、ニカラック(登録商標、以下同様)MX-290、ニカラックMX-280、ニカラックMX-270、ニカラックMX-279、ニカラックMW-100LM、ニカラックMX-750LM(以上、三和ケミカル社製)などが挙げられる。 Commercially available products may be used as other cross-linking agents, and suitable commercially available products include 46DMOC, 46DMOEP (all manufactured by Asahi Organic Materials Industry Co., Ltd.), DML-PC, DML-PEP, DML-OC, and DML-OEP. , DML-34X, DML-PTBP, DML-PCHP, DML-OCHP, DML-PFP, DML-PSBP, DML-POP, DML-MBOC, DML-MBPC, DML-MTrisPC, DML-BisOC-Z, DML-BisOCHP -Z, DML-BPC, DMLBisOC-P, DMOM-PC, DMOM-PTBP, DMOM-MBPC, TriML-P, TriML-35XL, TML-HQ, TML-BP, TML-pp-BPF, TML-BPE, TML -BPA, TML-BPAF, TML-BPAP, TMOM-BP, TMOM-BPE, TMOM-BPA, TMOM-BPAF, TMOM-BPAP, HML-TPPHBA, HML-TPHAP, HMOM-TPPHBA, HMOM-TPHAP (above, Honshu) Nikalac (registered trademark, the same applies hereinafter) MX-290, Nikalac MX-280, Nikarak MX-270, Nikarak MX-279, Nikarak MW-100LM, Nikarak MX-750LM (all manufactured by Sanwa Chemical Co., Ltd.) ) And so on.
 また、本発明の硬化性樹脂組成物は、他の架橋剤として、エポキシ化合物、オキセタン化合物、及び、ベンゾオキサジン化合物よりなる群から選ばれた少なくとも1種の化合物を含むことも好ましい。 Further, the curable resin composition of the present invention preferably contains at least one compound selected from the group consisting of an epoxy compound, an oxetane compound, and a benzoxazine compound as another cross-linking agent.
〔エポキシ化合物(エポキシ基を有する化合物)〕
 エポキシ化合物としては、一分子中にエポキシ基を2以上有する化合物であることが好ましい。エポキシ基は、200℃以下で架橋反応し、かつ、架橋に由来する脱水反応が起こらないため膜収縮が起きにくい。このため、エポキシ化合物を含有することは、硬化性樹脂組成物の低温硬化及び反りの抑制に効果的である。
[Epoxy compound (compound having an epoxy group)]
The epoxy compound is preferably a compound having two or more epoxy groups in one molecule. The epoxy group undergoes a cross-linking reaction at 200 ° C. or lower, and the dehydration reaction derived from the cross-linking does not occur, so that film shrinkage is unlikely to occur. Therefore, the inclusion of the epoxy compound is effective in suppressing low-temperature curing and warpage of the curable resin composition.
 エポキシ化合物は、ポリエチレンオキサイド基を含有することが好ましい。これにより、より弾性率が低下し、また反りを抑制することができる。ポリエチレンオキサイド基は、エチレンオキサイドの繰返し単位数が2以上のものを意味し、繰返し単位数が2~15であることが好ましい。 The epoxy compound preferably contains a polyethylene oxide group. As a result, the elastic modulus can be further reduced and warpage can be suppressed. The polyethylene oxide group means that the number of repeating units of ethylene oxide is 2 or more, and the number of repeating units is preferably 2 to 15.
 エポキシ化合物の例としては、ビスフェノールA型エポキシ樹脂;ビスフェノールF型エポキシ樹脂;プロピレングリコールジグリシジルエーテル、ネオペンチルグリコールジグリシジルエーテル、エチレングリコールジグリシジルエーテル、ブチレングリコールジグリシジルエーテル、ヘキサメチレングリコールジグリシジルエーテル、トリメチロールプロパントリグリシジルエーテル等のアルキレングリコール型エポキシ樹脂又は多価アルコール炭化水素型エポキシ樹脂;ポリプロピレングリコールジグリシジルエーテル等のポリアルキレングリコール型エポキシ樹脂;ポリメチル(グリシジロキシプロピル)シロキサン等のエポキシ基含有シリコーンなどを挙げることができるが、これらに限定されない。具体的には、エピクロン(登録商標)850-S、エピクロン(登録商標)HP-4032、エピクロン(登録商標)HP-7200、エピクロン(登録商標)HP-820、エピクロン(登録商標)HP-4700、エピクロン(登録商標)EXA-4710、エピクロン(登録商標)HP-4770、エピクロン(登録商標)EXA-859CRP、エピクロン(登録商標)EXA-1514、エピクロン(登録商標)EXA-4880、エピクロン(登録商標)EXA-4850-150、エピクロンEXA-4850-1000、エピクロン(登録商標)EXA-4816、エピクロン(登録商標)EXA-4822、エピクロン(登録商標)EXA-830LVP、エピクロン(登録商標)EXA-8183、エピクロン(登録商標)EXA-8169、エピクロン(登録商標)N-660、エピクロン(登録商標)N-665-EXP-S、エピクロン(登録商標)N-740、リカレジン(登録商標)BEO-20E(以上商品名、DIC(株)製)、リカレジン(登録商標)BEO-60E、リカレジン(登録商標)HBE-100、リカレジン(登録商標)DME-100、リカレジン(登録商標)L-200(商品名、新日本理化(株))、EP-4003S、EP-4000S、EP-4088S、EP-3950S(以上商品名、(株)ADEKA製)、セロキサイド2021P、2081、2000、3000、EHPE3150、エポリードGT400、セルビナースB0134、B0177(以上商品名、(株)ダイセル製)、NC-3000、NC-3000-L、NC-3000-H、NC-3000-FH-75M、NC-3100、CER-3000-L、NC-2000-L、XD-1000、NC-7000L、NC-7300L、EPPN-501H、EPPN-501HY、EPPN-502H、EOCN-1020、EOCN-102S、EOCN-103S、EOCN-104S、CER-1020、EPPN-201、BREN-S、BREN-10S(以上商品名、日本化薬(株)製)などが挙げられる。 Examples of epoxy compounds include bisphenol A type epoxy resin; bisphenol F type epoxy resin; propylene glycol diglycidyl ether, neopentyl glycol diglycidyl ether, ethylene glycol diglycidyl ether, butylene glycol diglycidyl ether, hexamethylene glycol diglycidyl ether. , Trimethylol propantriglycidyl ether and other alkylene glycol type epoxy resins or polyhydric alcohol hydrocarbon type epoxy resins; polypropylene glycol diglycidyl ether and other polyalkylene glycol type epoxy resins; polymethyl (glycidyloxypropyl) siloxane and other epoxy groups Examples include, but are not limited to, containing silicones. Specifically, Epicron® 850-S, Epicron® HP-4032, Epicron® HP-7200, Epicron® HP-820, Epicron® HP-4700, Epicron® EXA-4710, Epicron® HP-4770, Epicron® EXA-859CRP, Epicron® EXA-1514, Epicron® EXA-4880, Epicron® EXA-4850-150, Epicron EXA-4850-1000, Epicron® EXA-4816, Epicron® EXA-4822, Epicron® EXA-830LVP, Epicron® EXA-8183, Epicron (Registered Trademark) EXA-8169, Epicron (Registered Trademark) N-660, Epicron (Registered Trademark) N-665-EXP-S, Epicron (Registered Trademark) N-740, Rica Resin (Registered Trademark) BEO-20E (the above products) Name, manufactured by DIC Co., Ltd., Rikaresin (registered trademark) BEO-60E, Rikaresin (registered trademark) HBE-100, Rikaresin (registered trademark) DME-100, Rikaresin (registered trademark) L-200 (trade name, New Japan) Rika Co., Ltd., EP-4003S, EP-4000S, EP-4088S, EP-3950S (trade name, manufactured by ADEKA Co., Ltd.), Serokiside 2021P, 2081, 2000, 3000, EHPE3150, Epolide GT400, Serviners B0134, B0177 (trade name, manufactured by Daicel Co., Ltd.), NC-3000, NC-3000-L, NC-3000-H, NC-3000-FH-75M, NC-3100, CER-3000-L, NC-2000 -L, XD-1000, NC-7000L, NC-7300L, EPPN-501H, EPPN-501HY, EPPN-502H, EOCN-1020, EOCN-102S, EOCN-103S, EOCN-104S, CER-1020, EPPN-201 , BREN-S, BREN-10S (trade name, manufactured by Nippon Kayaku Co., Ltd.) and the like.
〔オキセタン化合物(オキセタニル基を有する化合物)〕
 オキセタン化合物としては、一分子中にオキセタン環を2つ以上有する化合物、3-エチル-3-ヒドロキシメチルオキセタン、1,4-ビス{[(3-エチル-3-オキセタニル)メトキシ]メチル}ベンゼン、3-エチル-3-(2-エチルヘキシルメチル)オキセタン、1,4-ベンゼンジカルボン酸-ビス[(3-エチル-3-オキセタニル)メチル]エステル等を挙げることができる。具体的な例としては、東亞合成(株)製のアロンオキセタンシリーズ(例えば、OXT-121、OXT-221、OXT-191、OXT-223)が好適に使用することができ、これらは単独で、又は2種以上混合してもよい。
[Oxetane compound (compound having an oxetanyl group)]
Examples of the oxetane compound include compounds having two or more oxetane rings in one molecule, 3-ethyl-3-hydroxymethyloxetane, 1,4-bis {[(3-ethyl-3-oxetanyl) methoxy] methyl} benzene, and the like. Examples thereof include 3-ethyl-3- (2-ethylhexylmethyl) oxetane, 1,4-benzenedicarboxylic acid-bis [(3-ethyl-3-oxetanyl) methyl] ester and the like. As a specific example, the Aron Oxetane series manufactured by Toagosei Co., Ltd. (for example, OXT-121, OXT-221, OXT-191, OXT-223) can be preferably used, and these can be used alone. Alternatively, two or more types may be mixed.
〔ベンゾオキサジン化合物(ベンゾオキサゾリル基を有する化合物)〕
 ベンゾオキサジン化合物は、開環付加反応に由来する架橋反応のため、硬化時に脱ガスが発生せず、更に熱収縮を小さくして反りの発生が抑えられることから好ましい。
[Benzoxazine compound (compound having a benzoxazolyl group)]
Since the benzoxazine compound is a cross-linking reaction derived from the ring-opening addition reaction, degassing does not occur during curing, and heat shrinkage is further reduced to suppress the occurrence of warpage, which is preferable.
 ベンゾオキサジン化合物の好ましい例としては、B-a型ベンゾオキサジン、B-m型ベンゾオキサジン、P-d型ベンゾオキサジン、F-a型ベンゾオキサジン(以上、商品名、四国化成工業社製)、ポリヒドロキシスチレン樹脂のベンゾオキサジン付加物、フェノールノボラック型ジヒドロベンゾオキサジン化合物が挙げられる。これらは単独で用いるか、又は2種以上混合してもよい。 Preferred examples of the benzoxazine compound include BA type benzoxazine, Bm type benzoxazine, Pd type benzoxazine, FA type benzoxazine (trade name, manufactured by Shikoku Kasei Kogyo Co., Ltd.), poly. Examples thereof include a benzoxazine adduct of a hydroxystyrene resin and a phenol novolac type dihydrobenzoxazine compound. These may be used alone or in combination of two or more.
 他の架橋剤の含有量は、本発明の硬化性樹脂組成物の全固形分に対し0.1~30質量%であることが好ましく、0.1~20質量%であることがより好ましく、0.5~15質量%であることが更に好ましく、1.0~10質量%であることが特に好ましい。他の架橋剤は1種のみ含有していてもよいし、2種以上含有していてもよい。他の架橋剤を2種以上含有する場合は、その合計が上記範囲であることが好ましい。 The content of the other cross-linking agent is preferably 0.1 to 30% by mass, more preferably 0.1 to 20% by mass, based on the total solid content of the curable resin composition of the present invention. It is more preferably 0.5 to 15% by mass, and particularly preferably 1.0 to 10% by mass. The other cross-linking agent may contain only one type, or may contain two or more types. When two or more other cross-linking agents are contained, the total is preferably in the above range.
<スルホンアミド構造を有する化合物、チオウレア構造を有する化合物>
 得られるパターンの基材への密着性を向上する観点からは、本発明の硬化性樹脂組成物は、スルホンアミド構造を有する化合物及びチオウレア構造を有する化合物よりなる群から選ばれた少なくとも1種の化合物を更に含むことが好ましい。
<Compounds having a sulfonamide structure, compounds having a thiourea structure>
From the viewpoint of improving the adhesion of the obtained pattern to the substrate, the curable resin composition of the present invention is at least one selected from the group consisting of a compound having a sulfonamide structure and a compound having a thiourea structure. It is preferable to further contain a compound.
〔スルホンアミド構造を有する化合物〕
 スルホンアミド構造とは、下記式(S-1)で表される構造である。
Figure JPOXMLDOC01-appb-C000046

 式(S-1)中、Rは水素原子又は有機基を表し、Rは他の構造と結合して環構造を形成してもよく、*はそれぞれ独立に、他の構造との結合部位を表す。
 上記Rは、下記式(S-2)におけるRと同様の基であることが好ましい。
 スルホンアミド構造を有する化合物は、スルホンアミド構造を2以上有する化合物であってもよいが、スルホンアミド構造を1つ有する化合物であることが好ましい。
[Compound having a sulfonamide structure]
The sulfonamide structure is a structure represented by the following formula (S-1).
Figure JPOXMLDOC01-appb-C000046

In the formula (S-1), R represents a hydrogen atom or an organic group, R may be bonded to another structure to form a ring structure, and * may independently form a binding site with another structure. show.
The R is preferably the same group as R 2 in the following formula (S-2).
The compound having a sulfonamide structure may be a compound having two or more sulfonamide structures, but a compound having one sulfonamide structure is preferable.
 スルホンアミド構造を有する化合物は、下記式(S-2)で表される化合物であることが好ましい。
Figure JPOXMLDOC01-appb-C000047

 式(S-2)中、R、R及びRはそれぞれ独立に、水素原子又は1価の有機基を表し、R、R及びRのうち2つ以上が互いに結合して環構造を形成していてもよい。
 R、R及びRはそれぞれ独立に、1価の有機基であることが好ましい。
 R、R及びRの例としては、水素原子、又は、アルキル基、シクロアルキル基、アルコキシ基、アルキルエーテル基、アルキルシリル基、アルコキシシリル基、アリール基、アリールエーテル基、カルボキシ基、カルボニル基、アリル基、ビニル基、複素環基、若しくはこれらを2以上組み合わせた基などが挙げられる。
 上記アルキル基としては、炭素数1~10のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましい。上記アルキル基としては、例えば、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、イソプロピル基、2-エチルへキシル基等が挙げられる。
 上記シクロアルキル基としては、炭素数5~10のシクロアルキル基が好ましく、炭素数6~10のシクロアルキル基がより好ましい。上記シクロアルキル基としては、例えば、シクロプロピル基、シクロブチル基、シクロペンチル基及びシクロヘキシル基等が挙げられる。
 上記アルコキシ基としては、炭素数1~10のアルコキシ基が好ましく、炭素数1~5のアルコキシ基がより好ましい。上記アルコキシ基としては、メトキシ基、エトキシ基、プロポキシ基、ブトキシ基及びペントキシ基等が挙げられる。
 上記アルコキシシリル基としては、炭素数1~10のアルコキシシリル基が好ましく、炭素数1~4のアルコキシシリル基がより好ましい。上記アルコキシシリル基としては、メトキシシリル基、エトキシシリル基、プロポキシシリル基及びブトキシシリル基等が挙げられる。
 上記アリール基としては、炭素数6~20のアリール基が好ましく、炭素数6~12のアリール基がより好ましい。上記アリール基は、アルキル基等の置換基を有していてもよい。上記アリール基としては、フェニル基、トリル基、キシリル基及びナフチル基等が挙げられる。
 上記複素環基としては、トリアゾール環、ピロール環、フラン環、チオフェン環、イミダゾール環、オキサゾール環、チアゾール環、ピラゾール環、イソオキサゾール環、イソチアゾール環、テトラゾール環、ピリジン環、ピリダジン環、ピリミジジン環、ピラジン環、ピペリジン環、ピペリジン、ピペラジン環、モルホリン環、ジヒドロピラン環、テトラヒドロピラン基、トリアジン環等の複素環構造から水素原子を1つ除いた基などが挙げられる。
The compound having a sulfonamide structure is preferably a compound represented by the following formula (S-2).
Figure JPOXMLDOC01-appb-C000047

In formula (S-2), R 1 , R 2 and R 3 each independently represent a hydrogen atom or a monovalent organic group, and two or more of R 1 , R 2 and R 3 are bonded to each other. It may form a ring structure.
It is preferable that R 1 , R 2 and R 3 are independently monovalent organic groups.
Examples of R 1 , R 2 and R 3 include a hydrogen atom, or an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an alkylsilyl group, an alkoxysilyl group, an aryl group, an aryl ether group, and a carboxy group. Examples thereof include a carbonyl group, an allyl group, a vinyl group, a heterocyclic group, or a group in which two or more of these are combined.
As the alkyl group, an alkyl group having 1 to 10 carbon atoms is preferable, and an alkyl group having 1 to 6 carbon atoms is more preferable. Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an isopropyl group, a 2-ethylhexyl group and the like.
As the cycloalkyl group, a cycloalkyl group having 5 to 10 carbon atoms is preferable, and a cycloalkyl group having 6 to 10 carbon atoms is more preferable. Examples of the cycloalkyl group include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group and the like.
As the alkoxy group, an alkoxy group having 1 to 10 carbon atoms is preferable, and an alkoxy group having 1 to 5 carbon atoms is more preferable. Examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group and the like.
As the alkoxysilyl group, an alkoxysilyl group having 1 to 10 carbon atoms is preferable, and an alkoxysilyl group having 1 to 4 carbon atoms is more preferable. Examples of the alkoxysilyl group include a methoxysilyl group, an ethoxysilyl group, a propoxysilyl group and a butoxysilyl group.
As the aryl group, an aryl group having 6 to 20 carbon atoms is preferable, and an aryl group having 6 to 12 carbon atoms is more preferable. The aryl group may have a substituent such as an alkyl group. Examples of the aryl group include a phenyl group, a tolyl group, a xylyl group and a naphthyl group.
Examples of the heterocyclic group include a triazole ring, a pyrrole ring, a furan ring, a thiophene ring, an imidazole ring, an oxazole ring, a thiazole ring, a pyrazole ring, an isooxazole ring, an isothiazole ring, a tetrazole ring, a pyridine ring, a pyridazine ring, and a pyrimididine ring. , Pyrazole ring, piperidine ring, piperidine, piperazine ring, morpholine ring, dihydropyran ring, tetrahydropyran group, triazine ring and other heterocyclic structures from which one hydrogen atom has been removed.
 これらの中でも、Rがアリール基であり、かつ、R及びRがそれぞれ独立に、水素原子又はアルキル基である化合物が好ましい。 Among these, compounds in which R 1 is an aryl group and R 2 and R 3 are independently hydrogen atoms or alkyl groups are preferable.
 スルホンアミド構造を有する化合物の例としては、ベンゼンスルホンアミド、ジメチルベンゼンスルホンアミド、N-ブチルベンゼンスルホンアミド、スルファニルアミド、o-トルエンスルホンアミド、p-トルエンスルホンアミド、ヒドロキシナフタレンスルホンアミド、ナフタレン-1-スルホンアミド、ナフタレン-2-スルホンアミド、m-ニトロベンゼンスルホンアミド、p-クロロベンゼンスルホンアミド、メタンスルホンアミド、N,N-ジメチルメタンスルホンアミド、N,N-ジメチルエタンスルホンアミド、N,N-ジエチルメタンスルホンアミド、N-メトキシメタンスルホンアミド、N-ドデシルメタンスルホンアミド、N-シクロヘキシル-1-ブタンスルホンアミド、2-アミノエタンスルホンアミドなどが挙げられる。 Examples of compounds having a sulfonamide structure include benzenesulfonamide, dimethylbenzenesulfonamide, N-butylbenzenesulfonamide, sulfanylamide, o-toluenesulfonamide, p-toluenesulfonamide, hydroxynaphthalenesulfonamide, naphthalene-1. -Sulfonamide, Naphthalene-2-sulfonamide, m-nitrobenzenesulfonamide, p-chlorobenzenesulfonamide, methanesulfonamide, N, N-dimethylmethanesulfonamide, N, N-dimethylethanesulfonamide, N, N-diethyl Examples thereof include methanesulfonamide, N-methoxymethanesulfonamide, N-dodecylmethanesulfonamide, N-cyclohexyl-1-butanesulfonamide, 2-aminoethanesulfonamide and the like.
〔チオウレア構造を有する化合物〕
 チオウレア構造とは、下記式(T-1)で表される構造である。
Figure JPOXMLDOC01-appb-C000048

 式(T-1)中、R及びRはそれぞれ独立に、水素原子又は1価の有機基を表し、R及びRは結合して環構造を形成してもよく、Rは*が結合する他の構造と結合して環構造を形成してもよく、Rは*が結合する他の構造と結合して環構造を形成してもよく、*はそれぞれ独立に、他の構造との結合部位を表す。
[Compound with thiourea structure]
The thiourea structure is a structure represented by the following formula (T-1).
Figure JPOXMLDOC01-appb-C000048

In formula (T-1), R 4 and R 5 each independently represent a hydrogen atom or a monovalent organic group, and R 4 and R 5 may be combined to form a ring structure, where R 4 is. The ring structure may be formed by combining with other structures to which * is bonded, R 5 may be combined with other structures to which * is bonded to form a ring structure, and * may be independently and others. Represents the site of connection with the structure of.
 R及びRはそれぞれ独立に、水素原子であることが好ましい。
 R及びRの例としては、水素原子、又は、アルキル基、シクロアルキル基、アルコキシ基、アルキルエーテル基、アルキルシリル基、アルコキシシリル基、アリール基、アリールエーテル基、カルボキシ基、カルボニル基、アリル基、ビニル基、複素環基、若しくは、これらを2以上組み合わせた基などが挙げられる。
 上記アルキル基としては、炭素数1~10のアルキル基が好ましく、炭素数1~6のアルキル基がより好ましい。上記アルキル基としては、例えば、メチル基、エチル基、プロピル基、ブチル基、ペンチル基、ヘキシル基、イソプロピル基、2-エチルへキシル基等が挙げられる。
 上記シクロアルキル基としては、炭素数5~10のシクロアルキル基が好ましく、炭素数6~10のシクロアルキル基がより好ましい。上記シクロアルキル基としては、例えば、シクロプロピル基、シクロブチル基、シクロペンチル基及びシクロヘキシル基等が挙げられる。
 上記アルコキシ基としては、炭素数1~10のアルコキシ基が好ましく、炭素数1~5のアルコキシ基がより好ましい。上記アルコキシ基としては、メトキシ基、エトキシ基、プロポキシ基、ブトキシ基及びペントキシ基等が挙げられる。
 上記アルコキシシリル基としては、炭素数1~10のアルコキシシリル基が好ましく、炭素数1~4のアルコキシシリル基がより好ましい。上記アルコキシシリル基としては、メトキシシリル基、エトキシシリル基、プロポキシシリル基及びブトキシシリル基等が挙げられる。
 上記アリール基としては、炭素数6~20のアリール基が好ましく、炭素数6~12のアリール基がより好ましい。上記アリール基は、アルキル基等の置換基を有していてもよい。上記アリール基としては、フェニル基、トリル基、キシリル基及びナフチル基等が挙げられる。
 上記複素環基としては、トリアゾール環、ピロール環、フラン環、チオフェン環、イミダゾール環、オキサゾール環、チアゾール環、ピラゾール環、イソオキサゾール環、イソチアゾール環、テトラゾール環、ピリジン環、ピリダジン環、ピリミジジン環、ピラジン環、ピペリジン環、ピペリジン、ピペラジン環、モルホリン環、ジヒドロピラン環、テトラヒドロピラン基、トリアジン環等の複素環構造から水素原子を1つ除いた基などが挙げられる。
 チオウレア構造を有する化合物は、チオウレア構造を2以上有する化合物であってもよいが、チオウレア構造を1つ有する化合物であることが好ましい。
It is preferable that R 4 and R 5 are independently hydrogen atoms.
Examples of R 4 and R 5 include a hydrogen atom, an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an alkylsilyl group, an alkoxysilyl group, an aryl group, an aryl ether group, a carboxy group, and a carbonyl group. Examples thereof include an allyl group, a vinyl group, a heterocyclic group, or a group in which two or more of these are combined.
As the alkyl group, an alkyl group having 1 to 10 carbon atoms is preferable, and an alkyl group having 1 to 6 carbon atoms is more preferable. Examples of the alkyl group include a methyl group, an ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, an isopropyl group, a 2-ethylhexyl group and the like.
As the cycloalkyl group, a cycloalkyl group having 5 to 10 carbon atoms is preferable, and a cycloalkyl group having 6 to 10 carbon atoms is more preferable. Examples of the cycloalkyl group include a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group and the like.
As the alkoxy group, an alkoxy group having 1 to 10 carbon atoms is preferable, and an alkoxy group having 1 to 5 carbon atoms is more preferable. Examples of the alkoxy group include a methoxy group, an ethoxy group, a propoxy group, a butoxy group, a pentoxy group and the like.
As the alkoxysilyl group, an alkoxysilyl group having 1 to 10 carbon atoms is preferable, and an alkoxysilyl group having 1 to 4 carbon atoms is more preferable. Examples of the alkoxysilyl group include a methoxysilyl group, an ethoxysilyl group, a propoxysilyl group and a butoxysilyl group.
As the aryl group, an aryl group having 6 to 20 carbon atoms is preferable, and an aryl group having 6 to 12 carbon atoms is more preferable. The aryl group may have a substituent such as an alkyl group. Examples of the aryl group include a phenyl group, a tolyl group, a xylyl group and a naphthyl group.
Examples of the heterocyclic group include a triazole ring, a pyrrole ring, a furan ring, a thiophene ring, an imidazole ring, an oxazole ring, a thiazole ring, a pyrazole ring, an isooxazole ring, an isothiazole ring, a tetrazole ring, a pyridine ring, a pyridazine ring, and a pyrimididine ring. , Pyrazole ring, piperidine ring, piperidine, piperazine ring, morpholine ring, dihydropyran ring, tetrahydropyran group, triazine ring and other heterocyclic structures from which one hydrogen atom has been removed.
The compound having a thiourea structure may be a compound having two or more thiourea structures, but a compound having one thiourea structure is preferable.
 チオウレア構造を有する化合物は、下記式(T-2)で表される化合物であることが好ましい。
Figure JPOXMLDOC01-appb-C000049

 式(T-2)中、R~Rはそれぞれ独立に、水素原子又は1価の有機基を表し、R~Rのうち少なくとも2つは互いに結合して環構造を形成していてもよい。
The compound having a thiourea structure is preferably a compound represented by the following formula (T-2).
Figure JPOXMLDOC01-appb-C000049

In formula (T-2), R 4 to R 7 each independently represent a hydrogen atom or a monovalent organic group, and at least two of R 4 to R 7 are bonded to each other to form a ring structure. You may.
 式(T-2)中、R及びRは式(T-1)中のR及びRと同義であり、好ましい態様も同様である。
 式(T-2)中、R及びRはそれぞれ独立に、1価の有機基であることが好ましい。
 式(T-2)中、R及びRにおける1価の有機基の好ましい態様は、式(T-1)中のR及びRにおける1価の有機基の好ましい態様と同様である。
Wherein (T-2), R 4 and R 5 have the same meanings as R 4 and R 5 in formula (T-1), a preferable embodiment thereof is also the same.
In the formula (T-2), it is preferable that R 6 and R 7 are independently monovalent organic groups.
In the formula (T-2), the preferred embodiment of the monovalent organic group in R 6 and R 7 is the same as the preferred embodiment of the monovalent organic group in R 4 and R 5 in the formula (T-1). ..
 チオウレア構造を有する化合物の例としては、N-アセチルチオウレア、N-アリルチオウレア、N-アリル-N’-(2-ヒドロキシエチル)チオウレア、1-アダマンチルチオウレア、N-ベンゾイルチオウレア、N,N’-ジフェニルチオウレア、1-ベンジル-フェニルチオウレア、1,3-ジブチルチオウレア、1,3-ジイソプロピルチオウレア、1,3-ジシクロヘキシルチオウレア、1-(3-(トリメトキシシリル)プロピル)-3-メチルチオウレア、トリメチルチオウレア、テトラメチルチオウレア、N,N-ジフェニルチオウレア、エチレンチオウレア(2-イミダゾリンチオン)、カルビマゾール、1,3-ジメチル-2-チオヒダントインなどが挙げられる。 Examples of compounds having a thiourea structure include N-acetylthiourea, N-allyl thiourea, N-allyl-N'-(2-hydroxyethyl) thiourea, 1-adamantyl thiourea, N-benzoyl thiourea, N, N'-. Diphenylthiourea, 1-benzyl-phenylthiourea, 1,3-dibutylthiourea, 1,3-diisopropylthiourea, 1,3-dicyclohexylthiourea, 1- (3- (trimethoxysilyl) propyl) -3-methylthiourea, trimethyl Examples thereof include thiourea, tetramethylthiourea, N, N-diphenylthiourea, ethylenethiourea (2-imidazolinthione), carbimazole, and 1,3-dimethyl-2-thiohydranthin.
〔含有量〕
 本発明の硬化性樹脂組成物の全質量に対する、スルホンアミド構造を有する化合物及びチオウレア構造を有する化合物の合計含有量は、0.05~10質量%であることが好ましく、0.1~5質量%であることがより好ましく、0.2~3質量%であることが更に好ましい。
 本発明の硬化性樹脂組成物は、スルホンアミド構造を有する化合物及びチオウレア構造を有する化合物よりなる群から選ばれる化合物を、1種のみ含んでもよいし、2種以上を含んでもよい。1種のみ含む場合にはその化合物の含有量が、2種以上を含む場合にはその合計量が、上記の範囲となることが好ましい。
〔Content〕
The total content of the compound having a sulfonamide structure and the compound having a thiourea structure is preferably 0.05 to 10% by mass, preferably 0.1 to 5% by mass, based on the total mass of the curable resin composition of the present invention. It is more preferably%, and further preferably 0.2 to 3% by mass.
The curable resin composition of the present invention may contain only one compound selected from the group consisting of a compound having a sulfonamide structure and a compound having a thiourea structure, or may contain two or more compounds. When only one type is contained, the content of the compound is preferably within the above range, and when two or more types are contained, the total amount thereof is preferably within the above range.
<マイグレーション抑制剤>
 本発明の硬化性樹脂組成物は、更にマイグレーション抑制剤を含むことが好ましい。マイグレーション抑制剤を含むことにより、金属層(金属配線)由来の金属イオンが感光膜内へ移動することを効果的に抑制可能となる。
<Migration inhibitor>
The curable resin composition of the present invention preferably further contains a migration inhibitor. By including the migration inhibitor, it is possible to effectively suppress the movement of metal ions derived from the metal layer (metal wiring) into the photosensitive film.
 マイグレーション抑制剤としては、特に制限はないが、複素環(ピロール環、フラン環、チオフェン環、イミダゾール環、トリアゾール環、オキサゾール環、チアゾール環、ピラゾール環、イソオキサゾール環、イソチアゾール環、テトラゾール環、ピリジン環、ピリダジン環、ピリミジン環、ピラジン環、ピペリジン環、ピペラジン環、モルホリン環、2H-ピラン環及び6H-ピラン環、トリアジン環)を有する化合物、チオ尿素類及びスルファニル基を有する化合物、ヒンダードフェノール系化合物、サリチル酸誘導体系化合物、ヒドラジド誘導体系化合物が挙げられる。特に、1,2,4-トリアゾール、ベンゾトリアゾール等のトリアゾール系化合物、1H-テトラゾール、5-フェニルテトラゾール等のテトラゾール系化合物が好ましく使用できる。 The migration inhibitor is not particularly limited, but has a heterocycle (pyrol ring, furan ring, thiophene ring, imidazole ring, triazole ring, oxazole ring, thiazole ring, pyrazole ring, isooxazole ring, isothiazole ring, tetrazole ring, etc. Pyridine ring, pyridazine ring, pyrimidine ring, pyrazine ring, piperazine ring, piperazine ring, morpholin ring, 2H-pyran ring and 6H-pyran ring, triazine ring), thioureas and compounds having sulfanyl group, hindered Examples thereof include phenol-based compounds, salicylic acid derivative-based compounds, and hydrazide derivative-based compounds. In particular, triazole-based compounds such as 1,2,4-triazole and benzotriazole, and tetrazole-based compounds such as 1H-tetrazole and 5-phenyltetrazole can be preferably used.
 又はハロゲンイオンなどの陰イオンを捕捉するイオントラップ剤を使用することもできる。 Alternatively, an ion trap agent that traps anions such as halogen ions can also be used.
 その他のマイグレーション抑制剤としては、特開2013-015701号公報の段落0094に記載の防錆剤、特開2009-283711号公報の段落0073~0076に記載の化合物、特開2011-059656号公報の段落0052に記載の化合物、特開2012-194520号公報の段落0114、0116及び0118に記載の化合物、国際公開第2015/199219号の段落0166に記載の化合物などを使用することができる。 Examples of other migration inhibitors include rust preventives described in paragraph 0094 of JP2013-015701, compounds described in paragraphs 0073 to 0076 of JP2009-283711, and JP2011-059656. The compounds described in paragraph 0052, the compounds described in paragraphs 0114, 0116 and 0118 of JP2012-194520A, the compounds described in paragraph 0166 of International Publication No. 2015/199219, and the like can be used.
 マイグレーション抑制剤の具体例としては、下記化合物を挙げることができる。 Specific examples of the migration inhibitor include the following compounds.
Figure JPOXMLDOC01-appb-C000050
 
Figure JPOXMLDOC01-appb-C000050
 
 硬化性樹脂組成物がマイグレーション抑制剤を有する場合、マイグレーション抑制剤の含有量は、硬化性樹脂組成物の全固形分に対して、0.01~5.0質量%であることが好ましく、0.05~2.0質量%であることがより好ましく、0.1~1.0質量%であることが更に好ましい。 When the curable resin composition has a migration inhibitor, the content of the migration inhibitor is preferably 0.01 to 5.0% by mass with respect to the total solid content of the curable resin composition, and is 0. It is more preferably 0.05 to 2.0% by mass, and further preferably 0.1 to 1.0% by mass.
 マイグレーション抑制剤は1種のみでもよいし、2種以上であってもよい。マイグレーション抑制剤が2種以上の場合は、その合計が上記範囲であることが好ましい。 The migration inhibitor may be only one type or two or more types. When there are two or more types of migration inhibitors, the total is preferably in the above range.
<重合禁止剤>
 本発明の硬化性樹脂組成物は、重合禁止剤を含むことが好ましい。
<Polymerization inhibitor>
The curable resin composition of the present invention preferably contains a polymerization inhibitor.
 重合禁止剤としては、例えば、ヒドロキノン、o-メトキシフェノール、メトキシヒドロキノン、p-メトキシフェノール、ジ-tert-ブチル-p-クレゾール、ピロガロール、p-tert-ブチルカテコール(t-ブチルカテコール)、1,4-ベンゾキノン、ジフェニル-p-ベンゾキノン、4,4’-チオビス(3-メチル-6-tert-ブチルフェノール)、2,2’-メチレンビス(4-メチル-6-tert-ブチルフェノール)、N-ニトロソ-N-フェニルヒドロキシアミンアルミニウム塩、フェノチアジン、N-ニトロソジフェニルアミン、N-フェニルナフチルアミン、エチレンジアミン四酢酸、1,2-シクロヘキサンジアミン四酢酸、グリコールエーテルジアミン四酢酸、2,6-ジ-tert-ブチル-4-メチルフェノール、5-ニトロソ-8-ヒドロキシキノリン、1-ニトロソ-2-ナフトール、2-ニトロソ-1-ナフトール、2-ニトロソ-5-(N-エチル-N-スルホプロピルアミノ)フェノール、N-ニトロソフェニルヒドロキシアミン第一セリウム塩、N-ニトロソ-N-(1-ナフチル)ヒドロキシアミンアンモニウム塩、ビス(4-ヒドロキシ-3,5-tert-ブチル)フェニルメタン、、1,3,5-トリス(4-t-ブチル-3-ヒドロキシ-2,6-ジメチルベンジル)-1,3,5-トリアジン-2,4,6-(1H,3H,5H)-トリオン、4‐ヒドロキシ-2,2,6,6-テトラメチルピペリジン1-オキシルフリーラジカル、フェノチアジン、1,1-ジフェニル-2-ピクリルヒドラジル、ジブチルジチオカーバネート銅(II)、ニトロベンゼン、N-ニトロソ-N-フェニルヒドロキシルアミンアルミニウム塩、N-ニトロソ-N-フェニルヒドロキシルアミンアンモニウム塩N,N’-ジフェニル-p-フェニレンジアミン、2,4-ジ-tert-ブチルフェノール、ジ-t-ブチルヒドロキシトルエン、1,4-ナフトキノンなどが好適に用いられる。また、特開2015-127817号公報の段落0060に記載の重合禁止剤、及び、国際公開第2015/125469号の段落0031~0046に記載の化合物を用いることもできる。 Examples of the polymerization inhibitor include hydroquinone, o-methoxyphenol, methoxyhydroquinone, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, p-tert-butylcatechol (t-butylcatechol), 1, 4-benzoquinone, diphenyl-p-benzoquinone, 4,4'-thiobis (3-methyl-6-tert-butylphenol), 2,2'-methylenebis (4-methyl-6-tert-butylphenol), N-nitroso- N-phenylhydroxyamine aluminum salt, phenothiazine, N-nitrosodiphenylamine, N-phenylnaphthylamine, ethylenediamine tetraacetic acid, 1,2-cyclohexanediamine tetraacetic acid, glycol ether diamine tetraacetic acid, 2,6-di-tert-butyl-4 -Methylphenol, 5-nitroso-8-hydroxyquinoline, 1-nitroso-2-naphthol, 2-nitroso-1-naphthol, 2-nitroso-5- (N-ethyl-N-sulfopropylamino) phenol, N- Nitrosophenylhydroxyamine primary cerium salt, N-nitroso-N- (1-naphthyl) hydroxyamine ammonium salt, bis (4-hydroxy-3,5-tert-butyl) phenylmethane, 1,3,5-tris (4-t-Butyl-3-hydroxy-2,6-dimethylbenzyl) -1,3,5-triazine-2,4,6- (1H, 3H, 5H) -trione, 4-hydroxy-2,2 , 6,6-Tetramethylpiperidin 1-oxyl free radical, phenothiazine, 1,1-diphenyl-2-picrylhydrazyl, dibutyldithiocarbanate copper (II), nitrobenzene, N-nitroso-N-phenylhydroxylamine aluminum Salts, N-nitroso-N-phenylhydroxylamine ammonium salt N, N'-diphenyl-p-phenylenediamine, 2,4-di-tert-butylphenol, di-t-butylhydroxytoluene, 1,4-naphthoquinone, etc. It is preferably used. Further, the polymerization inhibitor described in paragraph 0060 of JP-A-2015-127817 and the compound described in paragraphs 0031 to 0046 of International Publication No. 2015/125469 can also be used.
 また、下記化合物を用いることができる。 In addition, the following compounds can be used.
Figure JPOXMLDOC01-appb-C000051
Figure JPOXMLDOC01-appb-C000051
 本発明の硬化性樹脂組成物が重合禁止剤を有する場合、重合禁止剤の含有量は、本発明の硬化性樹脂組成物の全固形分に対して、0.01~20.0質量%が挙げられ、0.01~5質量%であることが好ましく、0.02~3質量%であることがより好ましく、0.05~2.5質量%であることが更に好ましい。 When the curable resin composition of the present invention has a polymerization inhibitor, the content of the polymerization inhibitor is 0.01 to 20.0% by mass with respect to the total solid content of the curable resin composition of the present invention. It is preferably 0.01 to 5% by mass, more preferably 0.02 to 3% by mass, and further preferably 0.05 to 2.5% by mass.
 重合禁止剤は1種のみでもよいし、2種以上であってもよい。重合禁止剤が2種以上の場合は、その合計が上記範囲であることが好ましい。 The polymerization inhibitor may be only one type or two or more types. When there are two or more types of polymerization inhibitors, the total is preferably in the above range.
<金属接着性改良剤>

 本発明の硬化性樹脂組成物は、電極や配線などに用いられる金属材料との接着性を向上させるための金属接着性改良剤を含んでいることが好ましい。金属接着性改良剤としては、シランカップリング剤、アルミニウム系接着助剤、チタン系接着助剤、スルホンアミド構造を有する化合物及びチオウレア構造を有する化合物、リン酸誘導体化合物、βケトエステル化合物、アミノ化合物等などが挙げられる。
<Metal adhesion improver>

The curable resin composition of the present invention preferably contains a metal adhesiveness improving agent for improving the adhesiveness with a metal material used for electrodes, wiring and the like. Examples of the metal adhesion improver include silane coupling agents, aluminum-based adhesive aids, titanium-based adhesive aids, compounds having a sulfonamide structure and compounds having a thiourea structure, phosphoric acid derivative compounds, β-ketoester compounds, amino compounds and the like. And so on.
 シランカップリング剤の例としては、国際公開第2015/199219号の段落0167に記載の化合物、特開2014-191002号公報の段落0062~0073に記載の化合物、国際公開第2011/080992号の段落0063~0071に記載の化合物、特開2014-191252号公報の段落0060~0061に記載の化合物、特開2014-041264号公報の段落0045~0052に記載の化合物、国際公開第2014/097594号の段落0055に記載の化合物が挙げられる。また、特開2011-128358号公報の段落0050~0058に記載のように異なる2種以上のシランカップリング剤を用いることも好ましい。また、シランカップリング剤は、下記化合物を用いることも好ましい。以下の式中、Etはエチル基を表す。 Examples of the silane coupling agent include the compounds described in paragraph 0167 of International Publication No. 2015/199219, the compounds described in paragraphs 0062 to 0073 of JP-A-2014-191002, paragraphs of International Publication No. 2011/080992. Compounds described in 0063 to 0071, compounds described in paragraphs 0060 to 0061 of JP-A-2014-191252, compounds described in paragraphs 0045-0052 of JP-A-2014-041264, International Publication No. 2014/097594. Examples include the compounds described in paragraph 0055. It is also preferable to use two or more different silane coupling agents as described in paragraphs 0050 to 0058 of JP2011-128358A. Further, it is also preferable to use the following compounds as the silane coupling agent. In the following formula, Et represents an ethyl group.
Figure JPOXMLDOC01-appb-C000052
 他のシランカップリング剤としては、例えば、ビニルトリメトキシシラン、ビニルトリエトキシシラン、2-(3,4-エポキシシクロヘキシル)エチルトリメトキシシラン、3-グリシドキシプロピルメチルジメトキシシラン、3-グリシドキシプロピルトリメトキシシラン、3-グリシドキシプロピルメチルジエトキシシラン、3-グリシドキシプロピルトリエトキシシラン、p-スチリルトリメトキシシラン、3-メタクリロキシプロピルメチルジメトキシシラン、3-メタクリロキシプロピルトリメトキシシラン、3-メタクリロキシプロピルメチルジエトキシシラン、3-メタクリロキシプロピルトリエトキシシラン、3-アクリロキシプロピルトリメトキシシラン、N-2-(アミノエチル)-3-アミノプロピルメチルジメトキシシラン、N-2-(アミノエチル)-3-アミノプロピルトリメトキシシラン、3-アミノプロピルトリメトキシシラン、3-アミノプロピルトリエトキシシラン、3-トリエトキシシリル-N-(1,3-ジメチル-ブチリデン)プロピルアミン 、N-フェニル-3-アミノプロピルトリメトキシシラン、トリス-(トリメトキシシリルプロピル)イソシアヌレー、3-ウレイドプロピルトリアルコキシシラン、3-メルカプトプロピルメチルジメトキシシラン、3-メルカプトプロピルトリメトキシシラン、3-イソシアネートプロピルトリエトキシシラン、3-トリメトキシシリルプロピルコハク酸無水物が挙げられる。これらは1種単独または2種以上を組み合わせて使用することができる。
Figure JPOXMLDOC01-appb-C000052
Other silane coupling agents include, for example, vinyltrimethoxysilane, vinyltriethoxysilane, 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 3-glycid. Xipropyltrimethoxysilane, 3-glycidoxypropylmethyldiethoxysilane, 3-glycidoxypropyltriethoxysilane, p-styryltrimethoxysilane, 3-methacryloxypropylmethyldimethoxysilane, 3-methacryloxypropyltrimethoxy Silane, 3-methacryloxypropylmethyldiethoxysilane, 3-methacryloxypropyltriethoxysilane, 3-acryloxypropyltrimethoxysilane, N-2- (aminoethyl) -3-aminopropylmethyldimethoxysilane, N-2 -(Aminoethyl) -3-aminopropyltrimethoxysilane, 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-triethoxysilyl-N- (1,3-dimethyl-butylidene) propylamine, N-Phyl-3-aminopropyltrimethoxysilane, Tris- (trimethoxysilylpropyl) isocyanure, 3-ureidopropyltrialkoxysilane, 3-mercaptopropylmethyldimethoxysilane, 3-mercaptopropyltrimethoxysilane, 3-isocyanuppropyl Examples thereof include triethoxysilane and 3-trimethoxysilylpropyl succinate anhydride. These can be used alone or in combination of two or more.
〔アルミニウム系接着助剤〕
 アルミニウム系接着助剤としては、例えば、アルミニウムトリス(エチルアセトアセテート)、アルミニウムトリス(アセチルアセトネート)、エチルアセトアセテートアルミニウムジイソプロピレート等を挙げることができる。
[Aluminum-based adhesive aid]
Examples of the aluminum-based adhesive aid include aluminum tris (ethyl acetoacetate), aluminum tris (acetyl acetone), ethyl acetoacetate aluminum diisopropirate, and the like.
 金属接着性改良剤としては、特開2014-186186号公報の段落0046~0049に記載の化合物、特開2013-072935号公報の段落0032~0043に記載のスルフィド系化合物を用いることもできる。 As the metal adhesion improver, the compounds described in paragraphs 0046 to 0049 of JP2014-186186A and the sulfide compounds described in paragraphs 0032 to 0043 of JP2013-072935 can also be used.
 金属接着性改良剤の含有量は特定樹脂100質量部に対して、好ましくは0.1~30質量部であり、より好ましくは0.5~15質量部の範囲であり、更に好ましくは0.5~5質量部の範囲である。上記下限値以上とすることでパターンと金属層との接着性が良好となり、上記上限値以下とすることでパターンの耐熱性、機械特性が良好となる。金属接着性改良剤は1種のみでもよいし、2種以上であってもよい。2種以上用いる場合は、その合計が上記範囲であることが好ましい。 The content of the metal adhesive improving agent is preferably in the range of 0.1 to 30 parts by mass, more preferably 0.5 to 15 parts by mass, and further preferably 0. It is in the range of 5 to 5 parts by mass. When it is at least the above lower limit value, the adhesiveness between the pattern and the metal layer is good, and when it is at least the above upper limit value, the heat resistance and mechanical properties of the pattern are good. The metal adhesiveness improving agent may be only one kind or two or more kinds. When two or more types are used, the total is preferably in the above range.
<金属接着性改良剤>
 本発明の硬化性樹脂組成物は、電極や配線などに用いられる金属材料との接着性を向上させるための金属接着性改良剤を含んでいることが好ましい。金属接着性改良剤としては、特開2014-186186号公報の段落0046~0049に記載の化合物、特開2013-072935号公報の段落0032~0043に記載のスルフィド系化合物を用いることもできる。
<Metal adhesion improver>
The curable resin composition of the present invention preferably contains a metal adhesiveness improving agent for improving the adhesiveness with a metal material used for electrodes, wiring and the like. As the metal adhesiveness improving agent, the compounds described in paragraphs 0046 to 0049 of JP2014-186186A and the sulfide compounds described in paragraphs 0032 to 0043 of JP2013-072935 can also be used.
 金属接着性改良剤の含有量は複素環含有ポリマー前駆体100質量部に対して、好ましくは0.1~30質量部であり、より好ましくは0.5~15質量部の範囲であり、更に好ましくは0.5~5質量部の範囲である。上記下限値以上とすることで加熱工程後のパターンと金属層との接着性が良好となり、上記上限値以下とすることで加熱工程後の硬化物の耐熱性、機械特性が良好となる。金属接着性改良剤は1種のみでもよいし、2種以上であってもよい。2種以上用いる場合は、その合計が上記範囲であることが好ましい。 The content of the metal adhesion improver is preferably 0.1 to 30 parts by mass, more preferably 0.5 to 15 parts by mass, and further, with respect to 100 parts by mass of the heterocyclic polymer precursor. It is preferably in the range of 0.5 to 5 parts by mass. When it is at least the above lower limit value, the adhesiveness between the pattern and the metal layer after the heating step is good, and when it is at least the above upper limit value, the heat resistance and mechanical properties of the cured product after the heating step are good. The metal adhesiveness improving agent may be only one kind or two or more kinds. When two or more types are used, the total is preferably in the above range.
<その他の添加剤>
 本発明の硬化性樹脂組成物は、本発明の効果が得られる範囲で、必要に応じて、各種の添加物、例えば、増感剤、連鎖移動剤、界面活性剤、高級脂肪酸誘導体、無機粒子、硬化剤、硬化触媒、充填剤、酸化防止剤、紫外線吸収剤、凝集防止剤等を配合することができる。これらの添加剤を配合する場合、その合計配合量は硬化性樹脂組成物の固形分の3質量%以下とすることが好ましい。
<Other additives>
The curable resin composition of the present invention contains various additives such as a sensitizer, a chain transfer agent, a surfactant, a higher fatty acid derivative, and an inorganic particle, if necessary, as long as the effects of the present invention can be obtained. , Curing agent, curing catalyst, filler, antioxidant, ultraviolet absorber, anti-aggregation agent and the like can be blended. When these additives are blended, the total blending amount is preferably 3% by mass or less of the solid content of the curable resin composition.
〔増感剤〕
 本発明の硬化性樹脂組成物は、増感剤を含んでいてもよい。増感剤は、特定の活性放射線を吸収して電子励起状態となる。電子励起状態となった増感剤は、熱硬化促進剤、熱ラジカル重合開始剤、光ラジカル重合開始剤などと接触して、電子移動、エネルギー移動、発熱などの作用が生じる。これにより、熱硬化促進剤、熱ラジカル重合開始剤、光ラジカル重合開始剤は化学変化を起こして分解し、ラジカル、酸又は塩基を生成する。
 増感剤としては、例えば、ミヒラーズケトン、4,4’-ビス(ジエチルアミノ)ベンゾフェノン、2,5-ビス(4’-ジエチルアミノベンザル)シクロペンタン、2,6-ビス(4’-ジエチルアミノベンザル)シクロヘキサノン、2,6-ビス(4’-ジエチルアミノベンザル)-4-メチルシクロヘキサノン、4,4’-ビス(ジメチルアミノ)カルコン、4,4’-ビス(ジエチルアミノ)カルコン、p-ジメチルアミノシンナミリデンインダノン、p-ジメチルアミノベンジリデンインダノン、2-(p-ジメチルアミノフェニルビフェニレン)-ベンゾチアゾール、2-(p-ジメチルアミノフェニルビニレン)ベンゾチアゾール、2-(p-ジメチルアミノフェニルビニレン)イソナフトチアゾール、1,3-ビス(4’-ジメチルアミノベンザル)アセトン、1,3-ビス(4’-ジエチルアミノベンザル)アセトン、3,3’-カルボニル-ビス(7-ジエチルアミノクマリン)、3-アセチル-7-ジメチルアミノクマリン、3-エトキシカルボニル-7-ジメチルアミノクマリン、3-ベンジロキシカルボニル-7-ジメチルアミノクマリン、3-メトキシカルボニル-7-ジエチルアミノクマリン、3-エトキシカルボニル-7-ジエチルアミノクマリン、N-フェニル-N’-エチルエタノールアミン、N-フェニルジエタノールアミン、N-p-トリルジエタノールアミン、N-フェニルエタノールアミン、4-モルホリノベンゾフェノン、ジメチルアミノ安息香酸イソアミル、ジエチルアミノ安息香酸イソアミル、2-メルカプトベンズイミダゾール、1-フェニル-5-メルカプトテトラゾール、2-メルカプトベンゾチアゾール、2-(p-ジメチルアミノスチリル)ベンズオキサゾール、2-(p-ジメチルアミノスチリル)ベンズチアゾール、2-(p-ジメチルアミノスチリル)ナフト(1,2-d)チアゾール、2-(p-ジメチルアミノベンゾイル)スチレン、ジフェニルアセトアミド、ベンズアニリド、N-メチルアセトアニリド、3’,4’-ジメチルアセトアニリド等が挙げられる。
増感剤としては、増感色素を用いてもよい。
 増感色素の詳細については、特開2016-027357号公報の段落0161~0163の記載を参酌でき、この内容は本明細書に組み込まれる。
[Sensitizer]
The curable resin composition of the present invention may contain a sensitizer. The sensitizer absorbs specific active radiation and becomes an electron-excited state. The sensitizer in the electron-excited state comes into contact with a thermosetting accelerator, a thermal radical polymerization initiator, a photoradical polymerization initiator, or the like, and acts such as electron transfer, energy transfer, and heat generation occur. As a result, the thermosetting accelerator, the thermal radical polymerization initiator, and the photoradical polymerization initiator undergo a chemical change and decompose to generate radicals, acids, or bases.
Examples of the sensitizer include Michler's ketone, 4,4'-bis (diethylamino) benzophenone, 2,5-bis (4'-diethylaminobenzal) cyclopentane, and 2,6-bis (4'-diethylaminobenzal). Cyclohexanone, 2,6-bis (4'-diethylaminobenzal) -4-methylcyclohexanone, 4,4'-bis (dimethylamino) chalcone, 4,4'-bis (diethylamino) chalcone, p-dimethylaminosinnamiri Denindanone, p-dimethylaminobenzylideneindanone, 2- (p-dimethylaminophenylbiphenylene) -benzothiazole, 2- (p-dimethylaminophenylvinylene) benzothiazole, 2- (p-dimethylaminophenylvinylene) iso Naftthiazole, 1,3-bis (4'-dimethylaminobenzal) acetone, 1,3-bis (4'-diethylaminobenzal) acetone, 3,3'-carbonyl-bis (7-diethylaminocoumarin), 3 -Acetyl-7-dimethylaminocumine, 3-ethoxycarbonyl-7-dimethylaminocoumarin, 3-benzyloxycarbonyl-7-dimethylaminocumine, 3-methoxycarbonyl-7-diethylaminocumine, 3-ethoxycarbonyl-7-diethylamino Kumarin, N-phenyl-N'-ethylethanolamine, N-phenyldiethanolamine, Np-tolyldiethanolamine, N-phenylethanolamine, 4-morpholinobenzophenone, isoamyl dimethylaminobenzoate, isoamyl diethylaminobenzoate, 2-mercapto Benzimidazole, 1-phenyl-5-mercaptotetrazole, 2-mercaptobenzothiazole, 2- (p-dimethylaminostyryl) benzoxazole, 2- (p-dimethylaminostyryl) benzthiazole, 2- (p-dimethylaminostyryl) ) Naft (1,2-d) thiazole, 2- (p-dimethylaminobenzoyl) styrene, diphenylacetamide, benzanilide, N-methylacetanilide, 3', 4'-dimethylacetanilide and the like.
As the sensitizer, a sensitizing dye may be used.
For details of the sensitizing dye, the description in paragraphs 0161 to 0163 of JP-A-2016-0273557 can be referred to, and this content is incorporated in the present specification.
 本発明の硬化性樹脂組成物が増感剤を含む場合、増感剤の含有量は、本発明の硬化性樹脂組成物の全固形分に対し、0.01~20質量%であることが好ましく、0.1~15質量%であることがより好ましく、0.5~10質量%であることが更に好ましい。増感剤は、1種単独で用いてもよいし、2種以上を併用してもよい。 When the curable resin composition of the present invention contains a sensitizer, the content of the sensitizer may be 0.01 to 20% by mass with respect to the total solid content of the curable resin composition of the present invention. It is preferably 0.1 to 15% by mass, more preferably 0.5 to 10% by mass. The sensitizer may be used alone or in combination of two or more.
〔連鎖移動剤〕
 本発明の硬化性樹脂組成物は、連鎖移動剤を含有してもよい。連鎖移動剤は、例えば高分子辞典第三版(高分子学会編、2005年)683-684頁に定義されている。連鎖移動剤としては、例えば、分子内にSH、PH、SiH、及びGeHを有する化合物群が用いられる。これらは、低活性のラジカルに水素を供与して、ラジカルを生成するか、若しくは、酸化された後、脱プロトンすることによりラジカルを生成しうる。特に、チオール化合物を好ましく用いることができる。
[Chain transfer agent]
The curable resin composition of the present invention may contain a chain transfer agent. Chain transfer agents are defined, for example, in the Third Edition of the Polymer Dictionary (edited by the Society of Polymer Science, 2005), pp. 683-684. As the chain transfer agent, for example, a group of compounds having SH, PH, SiH, and GeH in the molecule is used. They can donate hydrogen to low-activity radicals to generate radicals, or they can be oxidized and then deprotonated to generate radicals. In particular, a thiol compound can be preferably used.
 また、連鎖移動剤は、国際公開第2015/199219号の段落0152~0153に記載の化合物を用いることもできる。 Further, as the chain transfer agent, the compounds described in paragraphs 0152 to 0153 of International Publication No. 2015/199219 can also be used.
 本発明の硬化性樹脂組成物が連鎖移動剤を有する場合、連鎖移動剤の含有量は、本発明の硬化性樹脂組成物の全固形分100質量部に対し、0.01~20質量部が好ましく、1~10質量部がより好ましく、1~5質量部が更に好ましい。連鎖移動剤は1種のみでもよいし、2種以上であってもよい。連鎖移動剤が2種以上の場合は、その合計が上記範囲であることが好ましい。 When the curable resin composition of the present invention has a chain transfer agent, the content of the chain transfer agent is 0.01 to 20 parts by mass with respect to 100 parts by mass of the total solid content of the curable resin composition of the present invention. Preferably, 1 to 10 parts by mass is more preferable, and 1 to 5 parts by mass is further preferable. The chain transfer agent may be only one kind or two or more kinds. When there are two or more types of chain transfer agents, the total is preferably in the above range.
〔界面活性剤〕
 本発明の硬化性樹脂組成物には、塗布性をより向上させる観点から、界面活性剤を添加してもよい。界面活性剤としては、フッ素系界面活性剤、ノニオン系界面活性剤、カチオン系界面活性剤、アニオン系界面活性剤、シリコーン系界面活性剤などの各種類の界面活性剤を使用できる。また、下記界面活性剤も好ましい。下記式中、主鎖の繰返し単位を示す括弧は各繰返し単位の含有量(モル%)を、側鎖の繰返し単位を示す括弧は各繰返し単位の繰り返し数をそれぞれ表す。
Figure JPOXMLDOC01-appb-C000053

 また、界面活性剤は、国際公開第2015/199219号の段落0159~0165に記載の化合物を用いることもできる。
 フッ素系界面活性剤は、エチレン性不飽和基を側鎖に有する含フッ素重合体をフッ素系界面活性剤として用いることもできる。具体例としては、特開2010-164965号公報の段落0050~0090および段落0289~0295に記載された化合物、例えばDIC(株)製のメガファックRS-101、RS-102、RS-718K等が挙げられる。
[Surfactant]
A surfactant may be added to the curable resin composition of the present invention from the viewpoint of further improving the coatability. As the surfactant, various types of surfactants such as fluorine-based surfactants, nonionic surfactants, cationic surfactants, anionic surfactants, and silicone-based surfactants can be used. The following surfactants are also preferable. In the following formula, the parentheses indicating the repeating unit of the main chain represent the content (mol%) of each repeating unit, and the parentheses indicating the repeating unit of the side chain represent the number of repetitions of each repeating unit.
Figure JPOXMLDOC01-appb-C000053

Further, as the surfactant, the compound described in paragraphs 0159 to 0165 of International Publication No. 2015/199219 can also be used.
As the fluorine-based surfactant, a fluorine-containing polymer having an ethylenically unsaturated group in the side chain can also be used as the fluorine-based surfactant. Specific examples include the compounds described in paragraphs 0050 to 0090 and paragraphs 0289 to 0295 of JP2010-164965, such as Megafuck RS-101, RS-102, RS-718K manufactured by DIC Corporation. Can be mentioned.
 フッ素系界面活性剤中のフッ素含有率は、3~40質量%が好適であり、より好ましくは5~30質量%であり、特に好ましくは7~25質量%である。フッ素含有率がこの範囲内であるフッ素系界面活性剤は、塗布膜の厚さの均一性や省液性の点で効果的であり、組成物中における溶解性も良好である。 The fluorine content in the fluorine-based surfactant is preferably 3 to 40% by mass, more preferably 5 to 30% by mass, and particularly preferably 7 to 25% by mass. A fluorine-based surfactant having a fluorine content within this range is effective in terms of uniformity of coating film thickness and liquid saving property, and has good solubility in the composition.
 シリコーン系界面活性剤としては、例えば、トーレシリコーンDC3PA、トーレシリコーンSH7PA、トーレシリコーンDC11PA、トーレシリコーンSH21PA、トーレシリコーンSH28PA、トーレシリコーンSH29PA、トーレシリコーンSH30PA、トーレシリコーンSH8400(以上、東レ・ダウコーニング(株)製)、TSF-4440、TSF-4300、TSF-4445、TSF-4460、TSF-4452(以上、モメンティブ・パフォーマンス・マテリアルズ社製)、KP341、KF6001、KF6002(以上、信越シリコーン(株)製)、BYK307、BYK323、BYK330(以上、ビックケミー(株)製)等が挙げられる。 Examples of the silicone-based surfactant include Torre Silicone DC3PA, Torre Silicone SH7PA, Torre Silicone DC11PA, Torre Silicone SH21PA, Torre Silicone SH28PA, Torre Silicone SH29PA, Torre Silicone SH30PA, Torre Silicone SH8400 (all, Toray Dow Corning Co., Ltd.). ), TSF-4440, TSF-4300, TSF-4445, TSF-4460, TSF-4452 (all manufactured by Momentive Performance Materials Co., Ltd.), KP341, KF6001, KF6002 (manufactured by Shin-Etsu Silicone Co., Ltd.) ), BYK307, BYK323, BYK330 (all manufactured by Big Chemie Co., Ltd.) and the like.
 炭化水素系界面活性剤としては、例えば、パイオニンA-76、ニューカルゲンFS-3PG、パイオニンB-709、パイオニンB-811-N、パイオニンD-1004、パイオニンD-3104、パイオニンD-3605、パイオニンD-6112、パイオニンD-2104-D、パイオニンD-212、パイオニンD-931、パイオニンD-941、パイオニンD-951、パイオニンE-5310、パイオニンP-1050-B、パイオニンP-1028-P、パイオニンP-4050-T等(以上、竹本油脂社製)、などが挙げられる。 Examples of the hydrocarbon-based surfactant include Pionin A-76, New Calgen FS-3PG, Pionin B-709, Pionin B-811-N, Pionin D-1004, Pionin D-3104, Pionin D-3605, and Pionin. D-6112, Pionin D-2104-D, Pionin D-212, Pionin D-931, Pionin D-941, Pionin D-951, Pionin E-5310, Pionin P-1050-B, Pionin P-1028-P, Pionin P-4050-T and the like (all manufactured by Takemoto Oil & Fat Co., Ltd.) and the like can be mentioned.
 ノニオン型界面活性剤としては、グリセロール、トリメチロールプロパン、トリメチロールエタン並びにそれらのエトキシレート及びプロポキシレート(例えば、グリセロールプロポキシレート、グリセロールエトキシレート等)、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンステアリルエーテル、ポリオキシエチレンオレイルエーテル、ポリオキシエチレンオクチルフェニルエーテル、ポリオキシエチレンノニルフェニルエーテル、ポリエチレングリコールジラウレート、ポリエチレングリコールジステアレート、ソルビタン脂肪酸エステル、プルロニック(登録商標)L10、L31、L61、L62、10R5、17R2、25R2(BASF社製)、テトロニック304、701、704、901、904、150R1(BASF社製)、ソルスパース20000(日本ルーブリゾール(株)製)、NCW-101、NCW-1001、NCW-1002(和光純薬工業(株)製)、パイオニンD-6112、D-6112-W、D-6315(竹本油脂(株)製)、オルフィンE1010、サーフィノール104、400、440(日信化学工業(株)製)などが挙げられる。 Nonionic surfactants include glycerol, trimethylolpropane, trimethylolethane and their ethoxylates and propoxylates (eg, glycerol propoxylate, glycerol ethoxylate, etc.), polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, etc. Polyoxyethylene oleyl ether, polyoxyethylene octylphenyl ether, polyoxyethylene nonylphenyl ether, polyethylene glycol dilaurate, polyethylene glycol distearate, sorbitan fatty acid ester, Pluronic® L10, L31, L61, L62, 10R5, 17R2 , 25R2 (manufactured by BASF), Tetronic 304, 701, 704, 901, 904, 150R1 (manufactured by BASF), Solspers 20000 (manufactured by Nippon Lubrizol Co., Ltd.), NCW-101, NCW-1001, NCW-1002 (Made by Wako Pure Chemical Industries, Ltd.), Pionin D-6112, D-6112-W, D-6315 (Made by Takemoto Yushi Co., Ltd.), Orphine E1010, Surfinol 104, 400, 440 (Nissin Chemical Industry Co., Ltd. (Nissin Chemical Industry Co., Ltd.) (Made by Co., Ltd.) and the like.
 カチオン型界面活性剤として具体的には、オルガノシロキサンポリマーKP341(信越化学工業(株)製)、(メタ)アクリル酸系(共)重合体ポリフローNo.75、No.77、No.90、No.95(共栄社化学(株)製)、W001(裕商(株)製)等が挙げられる。 Specifically, as a cationic surfactant, organosiloxane polymer KP341 (manufactured by Shin-Etsu Chemical Co., Ltd.), (meth) acrylic acid-based (co) polymer Polyflow No. 75, No. 77, No. 90, No. 95 (manufactured by Kyoeisha Chemical Co., Ltd.), W001 (manufactured by Yusho Co., Ltd.) and the like can be mentioned.
 アニオン型界面活性剤として具体的には、W004、W005、W017(裕商(株)製)、サンデットBL(三洋化成(株)製)等が挙げられる。 Specific examples of the anionic surfactant include W004, W005, W017 (manufactured by Yusho Co., Ltd.), Sandet BL (manufactured by Sanyo Chemical Industries, Ltd.) and the like.
 本発明の硬化性樹脂組成物が界面活性剤を有する場合、界面活性剤の含有量は、本発明の硬化性樹脂組成物の全固形分に対して、0.001~2.0質量%であることが好ましく、より好ましくは0.005~1.0質量%である。界面活性剤は1種のみでもよいし、2種以上であってもよい。界面活性剤が2種以上の場合は、その合計が上記範囲であることが好ましい。 When the curable resin composition of the present invention has a surfactant, the content of the surfactant is 0.001 to 2.0% by mass based on the total solid content of the curable resin composition of the present invention. It is preferably 0.005 to 1.0% by mass, more preferably 0.005 to 1.0% by mass. The surfactant may be only one kind or two or more kinds. When there are two or more types of surfactant, the total is preferably in the above range.
〔高級脂肪酸誘導体〕
 本発明の硬化性樹脂組成物は、酸素に起因する重合阻害を防止するために、ベヘン酸やベヘン酸アミドのような高級脂肪酸誘導体を添加して、塗布後の乾燥の過程で硬化性樹脂組成物の表面に偏在させてもよい。
[Higher fatty acid derivative]
The curable resin composition of the present invention has a curable resin composition in the process of drying after application by adding a higher fatty acid derivative such as behenic acid or behenic acid amide in order to prevent polymerization inhibition due to oxygen. It may be unevenly distributed on the surface of an object.
 また、高級脂肪酸誘導体は、国際公開第2015/199219号の段落0155に記載の化合物を用いることもできる。 Further, as the higher fatty acid derivative, the compound described in paragraph 0155 of International Publication No. 2015/199219 can also be used.
 本発明の硬化性樹脂組成物が高級脂肪酸誘導体を有する場合、高級脂肪酸誘導体の含有量は、本発明の硬化性樹脂組成物の全固形分に対して、0.1~10質量%であることが好ましい。高級脂肪酸誘導体は1種のみでもよいし、2種以上であってもよい。高級脂肪酸誘導体が2種以上の場合は、その合計が上記範囲であることが好ましい。 When the curable resin composition of the present invention has a higher fatty acid derivative, the content of the higher fatty acid derivative is 0.1 to 10% by mass with respect to the total solid content of the curable resin composition of the present invention. Is preferable. The higher fatty acid derivative may be only one kind or two or more kinds. When there are two or more higher fatty acid derivatives, the total is preferably in the above range.
〔無機粒子〕
 本発明の樹脂組成物は、無機粒子を含んでもよい。無機粒子として、具体的には、炭酸カルシウム、リン酸カルシウム、シリカ、カオリン、タルク、二酸化チタン、アルミナ、硫酸バリウム、フッ化カルシウム、フッ化リチウム、ゼオライト、硫化モリブデン、ガラス等を含むことができる。
[Inorganic particles]
The resin composition of the present invention may contain inorganic particles. Specific examples of the inorganic particles include calcium carbonate, calcium phosphate, silica, kaolin, talc, titanium dioxide, alumina, barium sulfate, calcium fluoride, lithium fluoride, zeolite, molybdenum sulfide, and glass.
 上記無機粒子の平均粒子径としては、0.01~2.0μmが好ましく、0.02~1.5μmがより好ましく、0.03~1.0μmがさらに好ましく、0.04~0.5μmが特に好ましい。
 上記無機粒子の平均粒子径を多量に含有させることによって、上記硬化膜の機械特性が劣化することがある。また、上記無機粒子の平均粒子径が2.0μmを超えると、露光光の散乱によって解像度が低下することがある。
The average particle size of the inorganic particles is preferably 0.01 to 2.0 μm, more preferably 0.02 to 1.5 μm, further preferably 0.03 to 1.0 μm, and 0.04 to 0.5 μm. Especially preferable.
By containing a large amount of the average particle size of the inorganic particles, the mechanical properties of the cured film may deteriorate. Further, if the average particle size of the inorganic particles exceeds 2.0 μm, the resolution may decrease due to scattering of exposure light.
〔紫外線吸収剤〕
 本発明の組成物は、紫外線吸収剤を含んでいてもよい。紫外線吸収剤としては、サリシレート系、ベンゾフェノン系、ベンゾトリアゾール系、置換アクリロニトリル系、トリアジン系などの紫外線吸収剤を使用することができる。
 サリシレート系紫外線吸収剤の例としては、フェニルサリシレート、p-オクチルフェニルサリシレート、p-t-ブチルフェニルサリシレートなどが挙げられ、ベンゾフェノン系紫外線吸収剤の例としては、2,2’-ジヒドロキシ-4-メトキシベンゾフェノン、2,2’-ジヒドロキシ-4,4’-ジメトキシベンゾフェノン、2,2’,4,4’-テトラヒドロキシベンゾフェノン、2-ヒドロキシ-4-メトキシベンゾフェノン、2,4-ジヒドロキシベンゾフェノン、2-ヒドロキシ-4-オクトキシベンゾフェノンなどが挙げられる。また、ベンゾトリアゾール系紫外線吸収剤の例としては、2-(2’-ヒドロキシ-3’,5’-ジ-tert-ブチルフェニル)-5-クロロベンゾトリアゾール、2-(2’-ヒドロキシ-3’-tert-ブチル-5’-メチルフェニル)-5-クロロベンゾトリアゾール、2-(2’-ヒドロキシ-3’-tert-アミル-5’-イソブチルフェニル)-5-クロロベンゾトリアゾール、2-(2’-ヒドロキシ-3’-イソブチル-5’-メチルフェニル)-5-クロロベンゾトリアゾール、2-(2’-ヒドロキシ-3’-イソブチル-5’-プロピルフェニル)-5-クロロベンゾトリアゾール、2-(2’-ヒドロキシ-3’,5’-ジ-tert-ブチルフェニル)ベンゾトリアゾール、2-(2’-ヒドロキシ-5’-メチルフェニル)ベンゾトリアゾール、2-[2’-ヒドロキシ-5’-(1,1,3,3-テトラメチル)フェニル]ベンゾトリアゾールなどが挙げられる。
[UV absorber]
The composition of the present invention may contain an ultraviolet absorber. As the ultraviolet absorber, an ultraviolet absorber such as salicylate-based, benzophenone-based, benzotriazole-based, substituted acrylonitrile-based, or triazine-based can be used.
Examples of salicylate-based ultraviolet absorbers include phenyl salicylate, p-octylphenyl salicylate, pt-butylphenyl salicylate and the like, and examples of benzophenone-based ultraviolet absorbers include 2,2'-dihydroxy-4-. Methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2,2', 4,4'-tetrahydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2,4-dihydroxybenzophenone, 2- Hydroxy-4-octoxybenzophenone and the like can be mentioned. Examples of benzotriazole-based ultraviolet absorbers include 2- (2'-hydroxy-3', 5'-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3). '-Tert-Butyl-5'-methylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3'-tert-amyl-5'-isobutylphenyl) -5-chlorobenzotriazole, 2-( 2'-Hydroxy-3'-isobutyl-5'-methylphenyl) -5-chlorobenzotriazole, 2- (2'-hydroxy-3'-isobutyl-5'-propylphenyl) -5-chlorobenzotriazole, 2 -(2'-Hydroxy-3', 5'-di-tert-butylphenyl) benzotriazole, 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2- [2'-hydroxy-5' -(1,1,3,3-tetramethyl) phenyl] benzotriazole and the like can be mentioned.
 置換アクリロニトリル系紫外線吸収剤の例としては、2-シアノ-3,3-ジフェニルアクリル酸エチル、2-シアノ-3,3-ジフェニルアクリル酸2-エチルヘキシルなどが挙げられる。さらに、トリアジン系紫外線吸収剤の例としては、2-[4-[(2-ヒドロキシ-3-ドデシルオキシプロピル)オキシ]-2-ヒドロキシフェニル]-4,6-ビス(2,4-ジメチルフェニル)-1,3,5-トリアジン、2-[4-[(2-ヒドロキシ-3-トリデシルオキシプロピル)オキシ]-2-ヒドロキシフェニル]-4,6-ビス(2,4-ジメチルフェニル)-1,3,5-トリアジン、2-(2,4-ジヒドロキシフェニル)-4,6-ビス(2,4-ジメチルフェニル)-1,3,5-トリアジンなどのモノ(ヒドロキシフェニル)トリアジン化合物;2,4-ビス(2-ヒドロキシ-4-プロピルオキシフェニル)-6-(2,4-ジメチルフェニル)-1,3,5-トリアジン、2,4-ビス(2-ヒドロキシ-3-メチル-4-プロピルオキシフェニル)-6-(4-メチルフェニル)-1,3,5-トリアジン、2,4-ビス(2-ヒドロキシ-3-メチル-4-ヘキシルオキシフェニル)-6-(2,4-ジメチルフェニル)-1,3,5-トリアジンなどのビス(ヒドロキシフェニル)トリアジン化合物;2,4-ビス(2-ヒドロキシ-4-ブトキシフェニル)-6-(2,4-ジブトキシフェニル)-1,3,5-トリアジン、2,4,6-トリス(2-ヒドロキシ-4-オクチルオキシフェニル)-1,3,5-トリアジン、2,4,6-トリス[2-ヒドロキシ-4-(3-ブトキシ-2-ヒドロキシプロピルオキシ)フェニル]-1,3,5-トリアジンなどのトリス(ヒドロキシフェニル)トリアジン化合物等が挙げられる。 Examples of the substituted acrylonitrile-based ultraviolet absorber include ethyl 2-cyano-3,3-diphenylacrylate, 2-ethylhexyl 2-cyano-3,3-diphenylacrylate, and the like. Further, as an example of the triazine-based ultraviolet absorber, 2- [4-[(2-hydroxy-3-dodecyloxypropyl) oxy] -2-hydroxyphenyl] -4,6-bis (2,4-dimethylphenyl) )-1,3,5-Triazine, 2- [4-[(2-Hydroxy-3-tridecyloxypropyl) oxy] -2-hydroxyphenyl] -4,6-bis (2,4-dimethylphenyl) Mono (hydroxyphenyl) triazine compounds such as -1,3,5-triazine, 2- (2,4-dihydroxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine 2,4-bis (2-hydroxy-4-propyloxyphenyl) -6- (2,4-dimethylphenyl) -1,3,5-triazine, 2,4-bis (2-hydroxy-3-methyl) -4-propyloxyphenyl) -6- (4-methylphenyl) -1,3,5-triazine, 2,4-bis (2-hydroxy-3-methyl-4-hexyloxyphenyl) -6- (2) , 4-Dimethylphenyl) -1,3,5-Triazine and other bis (hydroxyphenyl) triazine compounds; 2,4-bis (2-hydroxy-4-butoxyphenyl) -6- (2,4-dibutoxyphenyl) ) -1,3,5-triazine, 2,4,6-tris (2-hydroxy-4-octyloxyphenyl) -1,3,5-triazine, 2,4,6-tris [2-hydroxy-4 -(3-Butoxy-2-hydroxypropyloxy) phenyl] -1,3,5-Triazine and other tris (hydroxyphenyl) triazine compounds and the like can be mentioned.
 本発明においては、上記各種の紫外線吸収剤は一種を単独で用いてもよく、二種以上を組み合わせて用いてもよい。
 本発明の組成物は、紫外線吸収剤を含んでも含まなくてもよいが、含む場合、紫外線吸収剤の含有量は、本発明の組成物の全固形分質量に対して、0.001質量%以上1質量%以下であることが好ましく、0.01質量%以上0.1質量%以下であることがより好ましい。
In the present invention, the above-mentioned various ultraviolet absorbers may be used alone or in combination of two or more.
The composition of the present invention may or may not contain an ultraviolet absorber, but when it is contained, the content of the ultraviolet absorber is 0.001% by mass with respect to the total solid content mass of the composition of the present invention. It is preferably 1% by mass or less, and more preferably 0.01% by mass or more and 0.1% by mass or less.
〔有機チタン化合物〕 
 本実施形態の樹脂組成物は、有機チタン化合物を含有してもよい。樹脂組成物が有機チタン化合物を含有することにより、低温で硬化した場合であっても耐薬品性に優れる樹脂層を形成できる。
[Organic titanium compound]
The resin composition of the present embodiment may contain an organic titanium compound. Since the resin composition contains an organic titanium compound, a resin layer having excellent chemical resistance can be formed even when cured at a low temperature.
 使用可能な有機チタン化合物としては、チタン原子に有機基が共有結合又はイオン結合を介して結合しているものが挙げられる。
 有機チタン化合物の具体例を、以下のI)~VII)に示す:
 I)チタンキレート化合物:中でも、ネガ型感光性樹脂組成物の保存安定性がよく、良好な硬化パターンが得られることから、アルコキシ基を2個以上有するチタンキレート化合物がより好ましい。具体的な例は、チタニウムビス(トリエタノールアミン)ジイソプロポキサイド、チタニウムジ(n-ブトキサイド)ビス(2,4-ペンタンジオネート、チタニウムジイソプロポキサイドビス(2,4-ペンタンジオネート)、チタニウムジイソプロポキサイドビス(テトラメチルヘプタンジオネート)、チタニウムジイソプロポキサイドビス(エチルアセトアセテート)等である。
 II)テトラアルコキシチタン化合物:例えば、チタニウムテトラ(n-ブトキサイド)、チタニウムテトラエトキサイド、チタニウムテトラ(2-エチルヘキソキサイド)、チタニウムテトライソブトキサイド、チタニウムテトライソプロポキサイド、チタニウムテトラメトキサイド、チタニウムテトラメトキシプロポキサイド、チタニウムテトラメチルフェノキサイド、チタニウムテトラ(n-ノニロキサイド)、チタニウムテトラ(n-プロポキサイド)、チタニウムテトラステアリロキサイド、チタニウムテトラキス[ビス{2,2-(アリロキシメチル)ブトキサイド}]等である。
 III)チタノセン化合物:例えば、ペンタメチルシクロペンタジエニルチタニウムトリメトキサイド、ビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロフェニル)チタニウム、ビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロ-3-(1H-ピロール-1-イル)フェニル)チタニウム等である。
 IV)モノアルコキシチタン化合物:例えば、チタニウムトリス(ジオクチルホスフェート)イソプロポキサイド、チタニウムトリス(ドデシルベンゼンスルホネート)イソプロポキサイド等である。
 V)チタニウムオキサイド化合物:例えば、チタニウムオキサイドビス(ペンタンジオネート)、チタニウムオキサイドビス(テトラメチルヘプタンジオネート)、フタロシアニンチタニウムオキサイド等である。
 VI)チタニウムテトラアセチルアセトネート化合物:例えば、チタニウムテトラアセチルアセトネート等である。
 VII)チタネートカップリング剤:例えば、イソプロピルトリドデシルベンゼンスルホニルチタネート等である。
Examples of the organic titanium compound that can be used include those in which an organic group is bonded to a titanium atom via a covalent bond or an ionic bond.
Specific examples of the organic titanium compound are shown in I) to VII) below:
I) Titanium chelate compound: Among them, a titanium chelate compound having two or more alkoxy groups is more preferable because the negative photosensitive resin composition has good storage stability and a good curing pattern can be obtained. Specific examples are titanium bis (triethanolamine) diisopropoxyside, titanium di (n-butoxide) bis (2,4-pentanionate, titanium diisopropoxyside bis (2,4-pentanionate)). , Titanium diisopropoxyside bis (tetramethylheptandionate), titanium diisopropoxyside bis (ethylacetacetate) and the like.
II) Titanium Alkoxy Titanium Compounds: For example, Titanium Tetra (n-Butoxide), Titanium Tetraethoxide, Titanium Tetra (2-ethylhexoxyside), Titanium Tetraisobutoxide, Titanium Tetraisopropoxyside, Titanium Tetramethoxide. , Titanium Tetramethoxypropoxyside, Titanium Tetramethylphenoxide, Titanium Tetra (n-Noniloxide), Titanium Tetra (n-Propoxide), Titanium Tetrasteeryloxyside, Titanium Tetrakiss [Bis {2,2- (Aryloxymethyl) Butokiside}] etc.
III) Titanocene compounds: for example, pentamethylcyclopentadienyl titanium trimethoxide, bis (η5-2,4-cyclopentadiene-1-yl) bis (2,6-difluorophenyl) titanium, bis (η5-2, 2). 4-Cyclopentadiene-1-yl) bis (2,6-difluoro-3- (1H-pyrrole-1-yl) phenyl) titanium and the like.
IV) Monoalkoxytitanium compound: For example, titanium tris (dioctyl phosphate) isopropoxyside, titanium tris (dodecylbenzene sulfonate) isopropoxide, and the like.
V) Titanium oxide compound: For example, titanium oxide bis (pentanionate), titanium oxide bis (tetramethylheptandionate), phthalocyanine titanium oxide and the like.
VI) Titanium tetraacetylacetone compound: For example, titanium tetraacetylacetone.
VII) Titanate Coupling Agent: For example, isopropyltridodecylbenzenesulfonyl titanate and the like.
 中でも、有機チタン化合物としては、上記I)チタンキレート化合物、II)テトラアルコキシチタン化合物、及びIII)チタノセン化合物から成る群から選ばれる少なくとも1種の化合物であることが、より良好な耐薬品性を奏するという観点から好ましい。特に、チタニウムジイソプロポキサイドビス(エチルアセトアセテート)、チタニウムテトラ(n-ブトキサイド)、及びビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロ-3-(1H-ピロール-1-イル)フェニル)チタニウムが好ましい。 Among them, as the organic titanium compound, at least one compound selected from the group consisting of the above-mentioned I) titanium chelate compound, II) tetraalkoxytitanium compound, and III) titanosen compound has better chemical resistance. It is preferable from the viewpoint of playing. In particular, titanium diisopropoxyside bis (ethylacetacetate), titanium tetra (n-butoxide), and bis (η5-2,4-cyclopentadiene-1-yl) bis (2,6-difluoro-3- (1H)). -Pyrrole-1-yl) phenyl) titanium is preferred.
 有機チタン化合物を配合する場合、その配合量は、環化樹脂の前駆体100質量部に対し、0.05~10質量部であることが好ましく、より好ましくは0.1~2質量部である。配合量が0.05質量部以上である場合、得られる硬化パターンに良好な耐熱性及び耐薬品性が発現し、一方10質量部以下である場合、組成物の保存安定性に優れる。 When the organic titanium compound is blended, the blending amount is preferably 0.05 to 10 parts by mass, more preferably 0.1 to 2 parts by mass with respect to 100 parts by mass of the precursor of the cyclized resin. .. When the blending amount is 0.05 parts by mass or more, good heat resistance and chemical resistance are exhibited in the obtained curing pattern, while when it is 10 parts by mass or less, the storage stability of the composition is excellent.
〔酸化防止剤〕
 本発明の組成物は、酸化防止剤を含んでいてもよい。添加剤として酸化防止剤を含有することで、硬化後の膜の伸度特性や、金属材料との密着性を向上させることができる。酸化防止剤としては、フェノール化合物、亜リン酸エステル化合物、チオエーテル化合物などが挙げられる。フェノール化合物としては、フェノール系酸化防止剤として知られる任意のフェノール化合物を使用することができる。好ましいフェノール化合物としては、ヒンダードフェノール化合物が挙げられる。フェノール性ヒドロキシ基に隣接する部位(オルト位)に置換基を有する化合物が好ましい。前述の置換基としては炭素数1~22の置換又は無置換のアルキル基が好ましい。また、酸化防止剤は、同一分子内にフェノール基と亜リン酸エステル基を有する化合物も好ましい。また、酸化防止剤は、リン系酸化防止剤も好適に使用することができる。リン系酸化防止剤としてはトリス[2-[[2,4,8,10-テトラキス(1,1-ジメチルエチル)ジベンゾ[d,f][1,3,2]ジオキサホスフェピン-6-イル]オキシ]エチル]アミン、トリス[2-[(4,6,9,11-テトラ-tert-ブチルジベンゾ[d,f][1,3,2]ジオキサホスフェピン-2-イル)オキシ]エチル]アミン、亜リン酸エチルビス(2,4-ジ-tert-ブチル-6-メチルフェニル)などが挙げられる。酸化防止剤の市販品としては、例えば、アデカスタブ AO-20、アデカスタブ AO-30、アデカスタブ AO-40、アデカスタブ AO-50、アデカスタブ AO-50F、アデカスタブ AO-60、アデカスタブ AO-60G、アデカスタブ AO-80、アデカスタブ AO-330(以上、(株)ADEKA製)などが挙げられる。また、酸化防止剤は、特許第6268967号公報の段落番号0023~0048に記載された化合物を使用することもできる。また、本発明の組成物は、必要に応じて、潜在酸化防止剤を含有してもよい。潜在酸化防止剤としては、酸化防止剤として機能する部位が保護基で保護された化合物であって、100~250℃で加熱するか、又は酸/塩基触媒存在下で80~200℃で加熱することにより保護基が脱離して酸化防止剤として機能する化合物が挙げられる。潜在酸化防止剤としては、国際公開第2014/021023号、国際公開第2017/030005号、特開2017-008219号公報に記載された化合物が挙げられる。潜在酸化防止剤の市販品としては、アデカアークルズGPA-5001((株)ADEKA製)等が挙げられる。好ましい酸化防止剤の例としては、2,2-チオビス(4-メチル-6-t-ブチルフェノール)、2,6-ジ-t-ブチルフェノールおよび一般式(3)で表される化合物が挙げられる。
〔Antioxidant〕
The composition of the present invention may contain an antioxidant. By containing an antioxidant as an additive, it is possible to improve the elongation characteristics of the film after curing and the adhesion with a metal material. Examples of the antioxidant include phenol compounds, phosphite ester compounds, thioether compounds and the like. As the phenol compound, any phenol compound known as a phenolic antioxidant can be used. Preferred phenolic compounds include hindered phenolic compounds. A compound having a substituent at a site (ortho position) adjacent to the phenolic hydroxy group is preferable. As the above-mentioned substituent, a substituted or unsubstituted alkyl group having 1 to 22 carbon atoms is preferable. Further, as the antioxidant, a compound having a phenol group and a phosphite ester group in the same molecule is also preferable. Further, as the antioxidant, a phosphorus-based antioxidant can also be preferably used. As a phosphorus-based antioxidant, tris [2-[[2,4,8,10-tetrakis (1,1-dimethylethyl) dibenzo [d, f] [1,3,2] dioxaphosfepine-6 -Il] Oxy] Ethyl] amine, Tris [2-[(4,6,9,11-tetra-tert-butyldibenzo [d, f] [1,3,2] dioxaphosfepin-2-yl] ) Oxy] ethyl] amine, ethylbis phosphite (2,4-di-tert-butyl-6-methylphenyl) and the like. Commercially available products of antioxidants include, for example, Adekastab AO-20, Adekastab AO-30, Adekastab AO-40, Adekastab AO-50, Adekastab AO-50F, Adekastab AO-60, Adekastab AO-60G, Adekastab AO-80. , ADEKA STAB AO-330 (above, manufactured by ADEKA Corporation) and the like. Further, as the antioxidant, the compounds described in paragraphs 0023 to 0048 of Japanese Patent No. 6268967 can also be used. In addition, the composition of the present invention may contain a latent antioxidant, if necessary. The latent antioxidant is a compound in which the site that functions as an antioxidant is protected by a protecting group, and is heated at 100 to 250 ° C. or at 80 to 200 ° C. in the presence of an acid / base catalyst. As a result, a compound in which the protecting group is eliminated and functions as an antioxidant can be mentioned. Examples of the latent antioxidant include compounds described in International Publication No. 2014/021023, International Publication No. 2017/030005, and JP-A-2017-008219. Examples of commercially available products of latent antioxidants include ADEKA ARKULS GPA-5001 (manufactured by ADEKA Corporation). Examples of preferred antioxidants include 2,2-thiobis (4-methyl-6-t-butylphenol), 2,6-di-t-butylphenol and compounds represented by the general formula (3).
Figure JPOXMLDOC01-appb-C000054
Figure JPOXMLDOC01-appb-C000054
 一般式(3)中、Rは水素原子または炭素数2以上のアルキル基を表し、Rは炭素数2以上のアルキレン基を表す。Rは、炭素数2以上のアルキレン基、O原子、およびN原子のうち少なくともいずれかを含む1~4価の有機基を示す。kは1~4の整数を示す。 In the general formula (3), R 5 represents a hydrogen atom or an alkyl group having 2 or more carbon atoms, and R 6 represents an alkylene group having 2 or more carbon atoms. R 7 represents a 1- to tetravalent organic group containing at least one of an alkylene group having 2 or more carbon atoms, an O atom, and an N atom. k represents an integer of 1 to 4.
 一般式(3)で表される化合物は、樹脂の脂肪族基やフェノール性水酸基の酸化劣化を抑制する。また、金属材料への防錆作用により、金属酸化を抑制することができる。 The compound represented by the general formula (3) suppresses oxidative deterioration of the aliphatic group and the phenolic hydroxyl group of the resin. In addition, metal oxidation can be suppressed by the rust preventive action on the metal material.
 樹脂と金属材料に同時に作用できるため、kは2~4の整数がより好ましい。R7としては、アルキル基、シクロアルキル基、アルコキシ基、アルキルエーテル基、アルキルシリル基、アルコキシシリル基、アリール基、アリールエーテル基、カルボキシル基、カルボニル基、アリル基、ビニル基、複素環基、-O-、-NH-、-NHNH-、それらを組み合わせたものなどが挙げられ、さらに置換基を有していてもよい。この中でも、現像液への溶解性や金属密着性の点から、アルキルエーテル、-NH-を有することが好ましく、樹脂との相互作用と金属錯形成による金属密着性の点から-NH-がより好ましい。 Since it can act on the resin and the metal material at the same time, k is more preferably an integer of 2 to 4. R7 includes an alkyl group, a cycloalkyl group, an alkoxy group, an alkyl ether group, an alkylsilyl group, an alkoxysilyl group, an aryl group, an aryl ether group, a carboxyl group, a carbonyl group, an allyl group, a vinyl group, a heterocyclic group, and-. Examples thereof include O-, -NH-, -NHNH-, and combinations thereof, and may further have a substituent. Among these, it is preferable to have alkyl ether and -NH- from the viewpoint of solubility in a developing solution and metal adhesion, and -NH- is more preferable from the viewpoint of metal adhesion due to interaction with resin and metal complex formation. preferable.
 下記一般式(3)で表される化合物は、例としては以下のものが挙げられるが、下記構造に限らない。 Examples of the compound represented by the following general formula (3) include the following, but the compound is not limited to the following structure.
Figure JPOXMLDOC01-appb-C000055
 
Figure JPOXMLDOC01-appb-C000055
 
Figure JPOXMLDOC01-appb-C000056
Figure JPOXMLDOC01-appb-C000056
Figure JPOXMLDOC01-appb-C000057
Figure JPOXMLDOC01-appb-C000057
Figure JPOXMLDOC01-appb-C000058
Figure JPOXMLDOC01-appb-C000058
 酸化防止剤の添加量は、樹脂に対し、0.1~10質量部が好ましく、0.5~5質量部がより好ましい。添加量が0.1質量部より少ない場合は、信頼性後の伸度特性や金属材料に対する密着性向上の効果が得られにくく、また10質量部より多い場合は、感光剤との相互作用により、樹脂組成物の感度低下を招く恐れがある。酸化防止剤は1種のみを用いてもよく、2種以上を用いてもよい。2種以上を用いる場合は、それらの合計量が上記範囲となることが好ましい。 The amount of the antioxidant added is preferably 0.1 to 10 parts by mass, more preferably 0.5 to 5 parts by mass with respect to the resin. If the amount added is less than 0.1 parts by mass, it is difficult to obtain the effect of improving the elongation characteristics after reliability and the adhesion to the metal material, and if it is more than 10 parts by mass, it is due to the interaction with the photosensitizer. , There is a risk of lowering the sensitivity of the resin composition. Only one type of antioxidant may be used, or two or more types may be used. When two or more kinds are used, it is preferable that the total amount thereof is within the above range.
<その他の含有物質についての制限>
 本発明の硬化性樹脂組成物の水分含有量は、塗布面性状の観点から、5質量%未満が好ましく、1質量%未満がより好ましく、0.6質量%未満が更に好ましい。水分の含有量を維持する方法としては、保管条件における湿度の調整、収容容器の空隙率低減などが挙げられる。
<Restrictions on other contained substances>
The water content of the curable resin composition of the present invention is preferably less than 5% by mass, more preferably less than 1% by mass, and even more preferably less than 0.6% by mass from the viewpoint of coating surface properties. Examples of the method for maintaining the water content include adjusting the humidity under storage conditions and reducing the porosity of the storage container.
 本発明の硬化性樹脂組成物の金属含有量は、絶縁性の観点から、5質量ppm(parts per million)未満が好ましく、1質量ppm未満がより好ましく、0.5質量ppm未満が更に好ましい。金属としては、ナトリウム、カリウム、マグネシウム、カルシウム、鉄、クロム、ニッケルなどが挙げられる。金属を複数含む場合は、これらの金属の合計が上記範囲であることが好ましい。 The metal content of the curable resin composition of the present invention is preferably less than 5 mass ppm (parts per million), more preferably less than 1 mass ppm, and even more preferably less than 0.5 mass ppm, from the viewpoint of insulating properties. Examples of the metal include sodium, potassium, magnesium, calcium, iron, chromium, nickel and the like. When a plurality of metals are contained, the total of these metals is preferably in the above range.
 また、本発明の硬化性樹脂組成物に意図せずに含まれる金属不純物を低減する方法としては、本発明の硬化性樹脂組成物を構成する原料として金属含有量が少ない原料を選択する、本発明の硬化性樹脂組成物を構成する原料に対してフィルターろ過を行う、装置内をポリテトラフルオロエチレン等でライニングしてコンタミネーションを可能な限り抑制した条件下で蒸留を行う等の方法を挙げることができる。 Further, as a method for reducing metal impurities unintentionally contained in the curable resin composition of the present invention, a raw material having a low metal content is selected as a raw material constituting the curable resin composition of the present invention. Methods such as filtering the raw materials constituting the curable resin composition of the present invention with a filter, lining the inside of the apparatus with polytetrafluoroethylene or the like, and performing distillation under conditions in which contamination is suppressed as much as possible can be mentioned. be able to.
 本発明の硬化性樹脂組成物は、半導体材料としての用途を考慮すると、ハロゲン原子の含有量が、配線腐食性の観点から、500質量ppm未満が好ましく、300質量ppm未満がより好ましく、200質量ppm未満が更に好ましい。中でも、ハロゲンイオンの状態で存在するものは、5質量ppm未満が好ましく、1質量ppm未満がより好ましく、0.5質量ppm未満が更に好ましい。ハロゲン原子としては、塩素原子及び臭素原子が挙げられる。塩素原子及び臭素原子、又は塩素イオン及び臭素イオンの合計がそれぞれ上記範囲であることが好ましい。
 ハロゲン原子の含有量を調節する方法としては、イオン交換処理などが好ましく挙げられる。
Considering the use as a semiconductor material, the curable resin composition of the present invention preferably has a halogen atom content of less than 500 mass ppm, more preferably less than 300 mass ppm, and more preferably 200 mass ppm from the viewpoint of wiring corrosiveness. Less than ppm is more preferred. Among them, those existing in the state of halogen ions are preferably less than 5 mass ppm, more preferably less than 1 mass ppm, and even more preferably less than 0.5 mass ppm. Examples of the halogen atom include a chlorine atom and a bromine atom. It is preferable that the total of chlorine atom and bromine atom, or chlorine ion and bromine ion is in the above range, respectively.
As a method for adjusting the content of halogen atoms, ion exchange treatment and the like are preferably mentioned.
 本発明の硬化性樹脂組成物の収容容器としては従来公知の収容容器を用いることができる。また、収容容器としては、原材料や硬化性樹脂組成物中への不純物混入を抑制することを目的に、容器内壁を6種6層の樹脂で構成された多層ボトルや、6種の樹脂を7層構造にしたボトルを使用することも好ましい。このような容器としては例えば特開2015-123351号公報に記載の容器が挙げられる。 A conventionally known storage container can be used as the storage container for the curable resin composition of the present invention. In addition, as the storage container, for the purpose of suppressing impurities from being mixed into the raw material and the curable resin composition, a multi-layer bottle having the inner wall of the container composed of 6 types and 6 layers of resin and 6 types of resin are used. It is also preferable to use a layered bottle. Examples of such a container include the container described in Japanese Patent Application Laid-Open No. 2015-123351.
<硬化性樹脂組成物の用途>
 本発明の硬化性樹脂組成物は、再配線層用層間絶縁膜の形成に用いられることが好ましい。
 また、その他、半導体デバイスの絶縁膜の形成、又は、ストレスバッファ膜の形成等にも用いることができる。
<Use of curable resin composition>
The curable resin composition of the present invention is preferably used for forming an interlayer insulating film for a rewiring layer.
In addition, it can also be used for forming an insulating film of a semiconductor device, forming a stress buffer film, and the like.
<硬化性樹脂組成物の調製>
 本発明の硬化性樹脂組成物は、上記各成分を混合して調製することができる。混合方法は特に限定はなく、従来公知の方法で行うことができる。
<Preparation of curable resin composition>
The curable resin composition of the present invention can be prepared by mixing each of the above components. The mixing method is not particularly limited, and a conventionally known method can be used.
 また、硬化性樹脂組成物中のゴミや微粒子等の異物を除去する目的で、フィルターを用いたろ過を行うことが好ましい。フィルター孔径は、1μm以下が好ましく、0.5μm以下がより好ましく、0.1μm以下が更に好ましい。一方、生産性の観点では、5μm以下が好ましく、3μm以下がより好ましく、1μm以下が更に好ましい。フィルターの材質は、ポリテトラフルオロエチレン、ポリエチレン又はナイロンが好ましい。フィルターは、有機溶剤であらかじめ洗浄したものを用いてもよい。フィルターろ過工程では、複数種のフィルターを直列又は並列に接続して用いてもよい。複数種のフィルターを使用する場合は、孔径又は材質が異なるフィルターを組み合わせて使用してもよい。また、各種材料を複数回ろ過してもよい。複数回ろ過する場合は、循環ろ過であってもよい。また、加圧してろ過を行ってもよい。加圧してろ過を行う場合、加圧する圧力は0.05MPa以上0.3MPa以下が好ましい。一方、生産性の観点では、0.01MPa以上1.0MPa以下が好ましく、0.03MPa以上0.9MPa以下がより好ましく、0.05MPa以上0.7MPa以下が更に好ましい。
 フィルターを用いたろ過の他、吸着材を用いた不純物の除去処理を行ってもよい。フィルターろ過と吸着材を用いた不純物除去処理とを組み合わせてもよい。吸着材としては、公知の吸着材を用いることができる。例えば、シリカゲル、ゼオライトなどの無機系吸着材、活性炭などの有機系吸着材が挙げられる。
Further, it is preferable to perform filtration using a filter for the purpose of removing foreign substances such as dust and fine particles in the curable resin composition. The filter pore diameter is preferably 1 μm or less, more preferably 0.5 μm or less, and even more preferably 0.1 μm or less. On the other hand, from the viewpoint of productivity, 5 μm or less is preferable, 3 μm or less is more preferable, and 1 μm or less is further preferable. The filter material is preferably polytetrafluoroethylene, polyethylene or nylon. The filter may be one that has been pre-cleaned with an organic solvent. In the filter filtration step, a plurality of types of filters may be connected in series or in parallel. When using a plurality of types of filters, filters having different pore diameters or materials may be used in combination. Moreover, you may filter various materials a plurality of times. When filtering a plurality of times, circulation filtration may be used. Moreover, you may pressurize and perform filtration. When pressurizing and filtering, the pressurizing pressure is preferably 0.05 MPa or more and 0.3 MPa or less. On the other hand, from the viewpoint of productivity, 0.01 MPa or more and 1.0 MPa or less is preferable, 0.03 MPa or more and 0.9 MPa or less is more preferable, and 0.05 MPa or more and 0.7 MPa or less is further preferable.
In addition to filtration using a filter, impurities may be removed using an adsorbent. Filter filtration and impurity removal treatment using an adsorbent may be combined. As the adsorbent, a known adsorbent can be used. Examples thereof include inorganic adsorbents such as silica gel and zeolite, and organic adsorbents such as activated carbon.
(硬化膜、積層体、半導体デバイス、及びそれらの製造方法)
 次に、硬化膜、積層体、半導体デバイス、及びそれらの製造方法について説明する。
(Cured film, laminate, semiconductor device, and manufacturing method thereof)
Next, a cured film, a laminate, a semiconductor device, and a method for manufacturing them will be described.
 本発明の硬化膜は、本発明の樹脂組成物を硬化してなる硬化膜である。硬化膜は、パターン状の硬化膜であることが好ましい。本発明の硬化膜の膜厚は、例えば、0.5μm以上とすることができ、1μm以上とすることができる。また、上限値としては、100μm以下とすることができ、30μm以下とすることもできる。 The cured film of the present invention is a cured film obtained by curing the resin composition of the present invention. The cured film is preferably a patterned cured film. The film thickness of the cured film of the present invention can be, for example, 0.5 μm or more, and can be 1 μm or more. Further, the upper limit value can be 100 μm or less, and can be 30 μm or less.
 本発明の硬化膜を2層以上、更には、3~7層積層して積層体としてもよい。本発明の積層体は、硬化膜を2層以上含み、上記硬化膜同士のいずれかの間に金属層を含む態様が好ましい。例えば、第一の硬化膜、金属層、第二の硬化膜の3つの層がこの順に積層された層構造を少なくとも含む積層体が好ましいものとして挙げられる。上記第一の硬化膜及び上記第二の硬化膜は、いずれも本発明の硬化膜であり、例えば、上記第一の硬化膜及び上記第二の硬化膜のいずれもが、本発明の樹脂組成物を硬化してなる膜である態様が好ましいものとして挙げられる。上記第一の硬化膜の形成に用いられる本発明の樹脂組成物と、上記第二の硬化膜の形成に用いられる本発明の樹脂組成物とは、組成が同一の組成物であってもよいし、組成が異なる組成物であってもよい。本発明の積層体における金属層は、再配線層などの金属配線として好ましく用いられる。 The cured film of the present invention may be laminated in two or more layers, and further in three to seven layers to form a laminated body. It is preferable that the laminate of the present invention contains two or more cured films and includes a metal layer between any of the cured films. For example, a laminate containing at least a layer structure in which three layers of a first cured film, a metal layer, and a second cured film are laminated in this order is preferable. The first cured film and the second cured film are both cured films of the present invention. For example, both the first cured film and the second cured film have the resin composition of the present invention. A preferred embodiment is a film obtained by curing an object. The resin composition of the present invention used for forming the first cured film and the resin composition of the present invention used for forming the second cured film may have the same composition. However, the compositions may have different compositions. The metal layer in the laminate of the present invention is preferably used as metal wiring such as a rewiring layer.
 本発明の硬化膜の適用可能な分野としては、半導体デバイスの絶縁膜、再配線層用層間絶縁膜、ストレスバッファ膜などが挙げられる。そのほか、封止フィルム、基板材料(フレキシブルプリント基板のベースフィルムやカバーレイ、層間絶縁膜)、又は上記のような実装用途の絶縁膜をエッチングでパターン形成することなどが挙げられる。これらの用途については、例えば、サイエンス&テクノロジー(株)「ポリイミドの高機能化と応用技術」2008年4月、柿本雅明/監修、CMCテクニカルライブラリー「ポリイミド材料の基礎と開発」2011年11月発行、日本ポリイミド・芳香族系高分子研究会/編「最新ポリイミド 基礎と応用」エヌ・ティー・エス,2010年8月等を参照することができる。 Examples of applicable fields of the cured film of the present invention include an insulating film for a semiconductor device, an interlayer insulating film for a rewiring layer, a stress buffer film, and the like. Other examples include forming a pattern by etching on a sealing film, a substrate material (base film or coverlay of a flexible printed circuit board, an interlayer insulating film), or an insulating film for mounting purposes as described above. For these applications, for example, Science & Technology Co., Ltd. "High-performance and applied technology of polyimide" April 2008, Masaaki Kakimoto / supervision, CMC technical library "Basics and development of polyimide materials" November 2011 You can refer to "Latest Polyimide Basics and Applications", NTS, August 2010, etc., published by Japan Polyimide / Aromatic Polymer Research Association / ed.
 また、本発明における硬化膜は、オフセット版面又はスクリーン版面などの版面の製造、成形部品のエッチングへの使用、エレクトロニクス、特に、マイクロエレクトロニクスにおける保護ラッカー及び誘電層の製造などにも用いることもできる。 The cured film in the present invention can also be used for manufacturing plate surfaces such as offset plate surfaces or screen plate surfaces, for etching molded parts, and for manufacturing protective lacquers and dielectric layers in electronics, especially microelectronics.
 本発明の硬化膜の製造方法(以下、単に「本発明の製造方法」ともいう。)は、本発明の樹脂組成物を基材に適用して膜(樹脂膜)を形成する膜形成工程を含むことが好ましい。
 本発明の硬化膜の製造方法は、上記膜形成工程、並びに、上記膜を露光する露光工程及び上記膜を現像する現像工程を含むことが好ましい。上記露光工程及び現像工程により、硬化膜のパターンが得られる。
 また、本発明の硬化膜の製造方法は、上記膜形成工程、及び、必要に応じて上記現像工程を含み、かつ、上記膜を50~450℃で加熱する加熱工程を含むことがより好ましい。
 具体的には、以下の(a)~(d)の工程を含むことも好ましい。
(a)樹脂組成物を基材に適用して膜(樹脂組成物層)を形成する膜形成工程
(b)膜形成工程の後、膜を露光する露光工程
(c)露光された上記膜を現像する現像工程
(d)現像された上記膜を50~450℃で加熱する加熱工程
 上記加熱工程において加熱することにより、露光で硬化した樹脂層を更に硬化させることができる。この加熱工程で、例えば上述の熱塩基発生剤が分解し、十分な硬化性が得られる。
The method for producing a cured film of the present invention (hereinafter, also simply referred to as “the method for producing the present invention”) is a film forming step of applying the resin composition of the present invention to a substrate to form a film (resin film). It is preferable to include it.
The method for producing a cured film of the present invention preferably includes the film forming step, an exposure step for exposing the film, and a developing step for developing the film. By the above exposure step and development step, a pattern of a cured film can be obtained.
Further, the method for producing a cured film of the present invention more preferably includes the film forming step and, if necessary, the developing step, and also includes a heating step of heating the film at 50 to 450 ° C.
Specifically, it is also preferable to include the following steps (a) to (d).
(A) Film forming step of applying the resin composition to a substrate to form a film (resin composition layer) (b) Exposure step of exposing the film after the film forming step (c) The exposed film Development step for developing (d) Heating step for heating the developed film at 50 to 450 ° C. By heating in the heating step, the resin layer cured by exposure can be further cured. In this heating step, for example, the above-mentioned thermal base generator is decomposed to obtain sufficient curability.
 本発明の好ましい実施形態に係る積層体の製造方法は、本発明の硬化膜の製造方法を含む。本実施形態の積層体の製造方法は、上記の硬化膜の製造方法に従って、硬化膜を形成後、更に、再度、(a)の工程、又は(a)~(c)の工程、又は(a)~(d)の工程を行う。特に、上記各工程を順に、複数回、例えば、2~5回(すなわち、合計で3~6回)行うことが好ましい。このように硬化膜を積層することにより、積層体とすることができる。本発明では特に硬化膜を設けた部分の上又は硬化膜の間、又はその両者に金属層を設けることが好ましい。なお、積層体の製造においては、(a)~(d)の工程をすべて繰り返す必要はなく、上記のとおり、少なくとも(a)、好ましくは(a)~(c)又は(a)~(d)の工程を複数回行うことで硬化膜の積層体を得ることができる。 The method for producing a laminate according to a preferred embodiment of the present invention includes the method for producing a cured film of the present invention. In the method for producing the laminated body of the present embodiment, after forming the cured film according to the above-mentioned method for producing the cured film, the steps (a), the steps (a) to (c), or (a) are further performed. )-(D). In particular, it is preferable to carry out each of the above steps a plurality of times, for example, 2 to 5 times (that is, 3 to 6 times in total) in order. By laminating the cured film in this way, a laminated body can be obtained. In the present invention, it is particularly preferable to provide a metal layer on the portion provided with the cured film, between the cured films, or both. In the production of the laminate, it is not necessary to repeat all the steps (a) to (d), and as described above, at least (a), preferably (a) to (c) or (a) to (d). ) Can be performed a plurality of times to obtain a laminated body of the cured film.
<膜形成工程(層形成工程)>
 本発明の好ましい実施形態に係る製造方法は、樹脂組成物を基材に適用して膜(層状)にする、膜形成工程(層形成工程)を含む。
<Film formation process (layer formation process)>
The production method according to a preferred embodiment of the present invention includes a film forming step (layer forming step) in which the resin composition is applied to a substrate to form a film (layered).
 基材の種類は、用途に応じて適宜定めることができるが、シリコン、窒化シリコン、ポリシリコン、酸化シリコン、アモルファスシリコンなどの半導体作製基材、石英、ガラス、光学フィルム、セラミック材料、蒸着膜、磁性膜、反射膜、Ni、Cu、Cr、Feなどの金属基材、紙、SOG(Spin On Glass)、TFT(薄膜トランジスタ)アレイ基材、プラズマディスプレイパネル(PDP)の電極板など特に制約されない。また、これらの基材には表面に密着層や酸化層などの層が設けられていてもよい。本発明では、特に、半導体作製基材が好ましく、シリコン基材、Cu基材およびモールド基材がより好ましい。
 また、これらの基材にはヘキサメチルジシラザン(HMDS)等による密着層や酸化層などの層が表面に設けられていてもよい。
 また、基材としては、例えば板状の基材(基板)が用いられる。
 基材の形状は特に限定されず、円形状であっても矩形状であってもよいが、矩形状であることが好ましい。
 基材のサイズとしては、円形状であれば、例えば直径が100~450mmであり、好ましくは200~450mmである。矩形状であれば、例えば短辺の長さが100~1000mmであり、好ましくは200~700mmである。
The type of the base material can be appropriately determined depending on the application, but semiconductor-made base materials such as silicon, silicon nitride, polysilicon, silicon oxide, and amorphous silicon, quartz, glass, optical film, ceramic material, and thin film, There are no particular restrictions on magnetic films, reflective films, metal substrates such as Ni, Cu, Cr, and Fe, paper, SOG (Spin On Glass), TFT (thin film transistor) array substrates, and electrode plates of plasma display panels (PDPs). Further, these base materials may be provided with a layer such as an adhesion layer or an oxide layer on the surface thereof. In the present invention, a semiconductor-made base material is particularly preferable, and a silicon base material, a Cu base material, and a mold base material are more preferable.
Further, these substrates may be provided with a layer such as an adhesion layer or an oxide layer made of hexamethyldisilazane (HMDS) or the like on the surface.
Further, as the base material, for example, a plate-shaped base material (board) is used.
The shape of the base material is not particularly limited, and may be circular or rectangular, but is preferably rectangular.
The size of the base material is, for example, 100 to 450 mm in diameter, preferably 200 to 450 mm in a circular shape. If it is rectangular, for example, the length of the short side is 100 to 1000 mm, preferably 200 to 700 mm.
 また、樹脂層の表面や金属層の表面に樹脂組成物層を形成する場合は、樹脂層や金属層が基材となる。 Further, when the resin composition layer is formed on the surface of the resin layer or the surface of the metal layer, the resin layer or the metal layer serves as a base material.
 樹脂組成物を基材に適用する手段としては、塗布が好ましい。 Coating is preferable as a means for applying the resin composition to the base material.
 具体的には、適用する手段としては、ディップコート法、エアーナイフコート法、カーテンコート法、ワイヤーバーコート法、グラビアコート法、エクストルージョンコート法、スプレーコート法、スピンコート法、スリットコート法、及びインクジェット法などが例示される。樹脂組成物層の厚さの均一性の観点から、より好ましくはスピンコート法、スリットコート法、スプレーコート法、インクジェット法である。方法に応じて適切な固形分濃度や塗布条件を調整することで、所望の厚さの樹脂層を得ることができる。また、基材の形状によっても塗布方法を適宜選択でき、ウエハ等の円形基材であればスピンコート法やスプレーコート法、インクジェット法等が好ましく、矩形基材であればスリットコート法やスプレーコート法、インクジェット法等が好ましい。スピンコート法の場合は、例えば、500~2,000rpmの回転数で、10秒~1分程度適用することができる。
 また感光性樹脂組成物の粘度や設定する膜厚によっては、300~3,500rpmの回転数で、10~180秒適用することも好ましい。また膜厚の均一性を得るために、複数の回転数を組み合わせて塗布することもできる。
 また、あらかじめ仮支持体上に上記付与方法によって付与して形成した塗膜を、基材上に転写する方法を適用することもできる。
 転写方法に関しては特開2006-023696号公報の段落0023、0036~0051や、特開2006-047592号公報の段落0096~0108に記載の作製方法を本発明においても好適に用いることができる。
 また、基材の端部において余分な膜の除去を行なう工程を行なってもよい。このような工程の例には、エッジビードリンス(EBR)、エアナイフ、バックリンスなどが挙げられる。
 また樹脂組成物を基材に塗布する前に基材を種々の溶剤を塗布し、基材の濡れ性を向上させた後に樹脂組成物を塗布するプリウェット工程を採用しても良い。
Specifically, the means to be applied include a dip coating method, an air knife coating method, a curtain coating method, a wire bar coating method, a gravure coating method, an extrusion coating method, a spray coating method, a spin coating method, and a slit coating method. And the inkjet method and the like are exemplified. From the viewpoint of the uniformity of the thickness of the resin composition layer, a spin coating method, a slit coating method, a spray coating method, and an inkjet method are more preferable. A resin layer having a desired thickness can be obtained by adjusting an appropriate solid content concentration and coating conditions according to the method. Further, the coating method can be appropriately selected depending on the shape of the base material. For a circular base material such as a wafer, a spin coating method, a spray coating method, an inkjet method, etc. are preferable, and for a rectangular base material, a slit coating method or a spray coating method is preferable. The method, the inkjet method and the like are preferable. In the case of the spin coating method, for example, it can be applied at a rotation speed of 500 to 2,000 rpm for about 10 seconds to 1 minute.
Further, depending on the viscosity of the photosensitive resin composition and the film thickness to be set, it is preferable to apply the photosensitive resin composition at a rotation speed of 300 to 3,500 rpm for 10 to 180 seconds. Further, in order to obtain the uniformity of the film thickness, a plurality of rotation speeds can be combined and applied.
Further, it is also possible to apply a method of transferring a coating film previously formed on a temporary support by the above-mentioned application method onto a substrate.
Regarding the transfer method, the production method described in paragraphs 0023, 0036 to 0051 of JP-A-2006-023696 and paragraphs 096 to 0108 of JP-A-2006-047592 can be preferably used in the present invention.
Further, a step of removing the excess film at the edge of the base material may be performed. Examples of such a process include edge bead rinse (EBR), air knife, back rinse and the like.
Further, a pre-wetting step of applying various solvents to the base material before applying the resin composition to the base material to improve the wettability of the base material and then applying the resin composition may be adopted.
<乾燥工程>
 本発明の製造方法は、膜形成工程(層形成工程)の後に、溶剤を除去するために乾燥する工程を含んでいてもよい。好ましい乾燥温度は50~150℃で、70℃~130℃がより好ましく、90℃~110℃が更に好ましい。乾燥時間としては、30秒~20分が例示され、1分~10分が好ましく、3分~7分がより好ましい。
<Drying process>
The production method of the present invention may include a step of drying to remove the solvent after the film forming step (layer forming step). The preferred drying temperature is 50 to 150 ° C., more preferably 70 ° C. to 130 ° C., still more preferably 90 ° C. to 110 ° C. The drying time is exemplified by 30 seconds to 20 minutes, preferably 1 minute to 10 minutes, and more preferably 3 minutes to 7 minutes.
<露光工程>
 本発明の製造方法は、上記膜(樹脂組成物層)を露光する露光工程を含んでもよい。露光量は、樹脂組成物を硬化できる限り特に定めるものではないが、例えば、波長365nmでの露光エネルギー換算で100~10,000mJ/cm照射することが好ましく、200~8,000mJ/cm照射することがより好ましい。
<Exposure process>
The production method of the present invention may include an exposure step of exposing the film (resin composition layer). The exposure amount is not particularly specified as long as the resin composition can be cured, but for example, it is preferable to irradiate 100 to 10,000 mJ / cm 2 in terms of exposure energy at a wavelength of 365 nm, and 200 to 8,000 mJ / cm 2 It is more preferable to irradiate.
 露光波長は、190~1,000nmの範囲で適宜定めることができ、240~550nmが好ましい。
 また、露光光が波長365nm又は波長405nmの光を含むことが好ましく、波長405nmの光を含むことがより好ましい。
The exposure wavelength can be appropriately determined in the range of 190 to 1,000 nm, preferably 240 to 550 nm.
Further, the exposure light preferably contains light having a wavelength of 365 nm or 405 nm, and more preferably contains light having a wavelength of 405 nm.
 露光波長は、光源との関係でいうと、(1)半導体レーザー(波長 830nm、532nm、488nm、405nm etc.)、(2)メタルハライドランプ、(3)高圧水銀灯、g線(波長 436nm)、h線(波長 405nm)、i線(波長 365nm)、ブロード(g,h,i線の3波長)、(4)エキシマレーザー、KrFエキシマレーザー(波長 248nm)、ArFエキシマレーザー(波長 193nm)、F2エキシマレーザー(波長 157nm)、(5)極端紫外線;EUV(波長 13.6nm)、(6)電子線、(7)YAGレーザーの第二高調波532nmで、第三高調波355nm、等が挙げられる。本発明の樹脂組成物については、特に高圧水銀灯による露光が好ましく、中でも、i線による露光が好ましい。これにより、特に高い露光感度が得られうる。
 また取り扱いと生産性の観点では、高圧水銀灯のブロード(g,h,i線の3波長)光源や半導体レーザー405nmも好適である。
In relation to the light source, the exposure wavelengths are (1) semiconductor laser (wavelength 830 nm, 532 nm, 488 nm, 405 nm etc.), (2) metal halide lamp, (3) high-pressure mercury lamp, g-ray (wavelength 436 nm), h. Line (wavelength 405 nm), i-line (wavelength 365 nm), broad (3 wavelengths of g, h, i-line), (4) excimer laser, KrF excimer laser (wavelength 248 nm), ArF excimer laser (wavelength 193 nm), F2 excimer Examples thereof include a laser (wavelength 157 nm), (5) extreme ultraviolet rays; EUV (wavelength 13.6 nm), (6) electron beam, (7) YAG laser second harmonic 532 nm, third harmonic 355 nm, and the like. The resin composition of the present invention is particularly preferably exposed to a high-pressure mercury lamp, and above all, to be exposed to i-rays. As a result, particularly high exposure sensitivity can be obtained.
From the viewpoint of handling and productivity, a broad (three wavelengths of g, h, and i rays) light source of a high-pressure mercury lamp and a semiconductor laser of 405 nm are also suitable.
 また、露光の方式は特に限定されず、硬化性樹脂組成物からなる膜(感光膜)の少なくとも一部が露光される方式であればよいが、フォトマスクを使用した露光、レーザーダイレクトイメージング法による露光等が挙げられる。
 本発明において、露光工程における露光がレーザーダイレクトイメージング法による露光である態様も、好ましい態様の1つである。
The exposure method is not particularly limited as long as it exposes at least a part of the film (photosensitive film) made of the curable resin composition, but an exposure using a photomask or a laser direct imaging method is used. Exposure and the like can be mentioned.
In the present invention, an embodiment in which the exposure in the exposure step is an exposure by a laser direct imaging method is also one of the preferred embodiments.
<現像工程>
 本発明の製造方法は、露光された膜(樹脂組成物層)に対して、現像を行う(上記膜を現像する)現像工程を含んでもよい。現像を行うことにより、露光されていない部分(非露光部)が除去される。現像方法は、所望のパターンを形成できれば特に制限は無く、例えばノズルからの現像液の吐出、スプレー噴霧、基材の現像液浸漬などが挙げられ、ノズルからの吐出が好ましく利用される。現像工程には、現像液が連続的に基材に供給され続ける工程、基材上で現像液が略静止状態で保たれる工程、現像液を超音波等で振動させる工程およびそれらを組み合わせた工程などが採用可能である。
<Development process>
The production method of the present invention may include a developing step of developing (developing the above-mentioned film) the exposed film (resin composition layer). By developing, the unexposed portion (non-exposed portion) is removed. The developing method is not particularly limited as long as a desired pattern can be formed, and examples thereof include ejection of a developing solution from a nozzle, spray spraying, immersion of a developing solution in a base material, and the like, and ejection from a nozzle is preferably used. The developing steps include a step in which the developer is continuously supplied to the base material, a step in which the developer is kept in a substantially stationary state on the base material, a step in which the developer is vibrated by ultrasonic waves or the like, and a combination thereof. Processes can be adopted.
 現像は現像液を用いて行う。現像液は、露光されていない部分(非露光部)が除去されるのであれば、特に制限なく使用できる。
 現像液としては、有機溶剤を含む現像液、又は、アルカリ水溶液を用いることができる。
Development is performed using a developing solution. The developer can be used without particular limitation as long as the unexposed portion (non-exposed portion) is removed.
As the developing solution, a developing solution containing an organic solvent or an alkaline aqueous solution can be used.
 本発明では、現像液は、ClogP値が-1~5の有機溶剤を含むことが好ましく、ClogP値が0~3の有機溶剤を含むことがより好ましい。ClogP値は、ChemBioDrawにて構造式を入力して計算値として求めることができる。 In the present invention, the developer preferably contains an organic solvent having a ClogP value of -1 to 5, and more preferably contains an organic solvent having a ClogP value of 0 to 3. The ClogP value can be obtained as a calculated value by inputting a structural formula in ChemBioDraw.
 現像液が有機溶剤を含む現像液である場合、有機溶剤は、エステル類として、例えば、酢酸エチル、酢酸-n-ブチル、ギ酸アミル、酢酸イソアミル、酢酸イソブチル、プロピオン酸ブチル、酪酸イソプロピル、酪酸エチル、酪酸ブチル、乳酸メチル、乳酸エチル、γ-ブチロラクトン、ε-カプロラクトン、δ-バレロラクトン、アルキルオキシ酢酸アルキル(例:アルキルオキシ酢酸メチル、アルキルオキシ酢酸エチル、アルキルオキシ酢酸ブチル(例えば、メトキシ酢酸メチル、メトキシ酢酸エチル、メトキシ酢酸ブチル、エトキシ酢酸メチル、エトキシ酢酸エチル等))、3-アルキルオキシプロピオン酸アルキルエステル類(例:3-アルキルオキシプロピオン酸メチル、3-アルキルオキシプロピオン酸エチル等(例えば、3-メトキシプロピオン酸メチル、3-メトキシプロピオン酸エチル、3-エトキシプロピオン酸メチル、3-エトキシプロピオン酸エチル等))、2-アルキルオキシプロピオン酸アルキルエステル類(例:2-アルキルオキシプロピオン酸メチル、2-アルキルオキシプロピオン酸エチル、2-アルキルオキシプロピオン酸プロピル等(例えば、2-メトキシプロピオン酸メチル、2-メトキシプロピオン酸エチル、2-メトキシプロピオン酸プロピル、2-エトキシプロピオン酸メチル、2-エトキシプロピオン酸エチル))、2-アルキルオキシ-2-メチルプロピオン酸メチル及び2-アルキルオキシ-2-メチルプロピオン酸エチル(例えば、2-メトキシ-2-メチルプロピオン酸メチル、2-エトキシ-2-メチルプロピオン酸エチル等)、ピルビン酸メチル、ピルビン酸エチル、ピルビン酸プロピル、アセト酢酸メチル、アセト酢酸エチル、2-オキソブタン酸メチル、2-オキソブタン酸エチル等、並びに、エーテル類として、例えば、ジエチレングリコールジメチルエーテル、テトラヒドロフラン、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、メチルセロソルブアセテート、エチルセロソルブアセテート、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノブチルエーテル、プロピレングリコールモノメチルエーテル、プロピレングリコールモノメチルエーテルアセテート、プロピレングリコールモノエチルエーテルアセテート、プロピレングリコールモノプロピルエーテルアセテート等、並びに、ケトン類として、例えば、メチルエチルケトン、シクロヘキサノン、シクロペンタノン、2-ヘプタノン、3-ヘプタノン、N-メチル-2-ピロリドン等、並びに、環式炭化水素類として、例えば、トルエン、キシレン、アニソール、リモネン等、スルホキシド類としてジメチルスルホキシドが好適に挙げられ、また、それらの有機溶剤の混合物も好適に挙げられる。 When the developing solution is a developing solution containing an organic solvent, the organic solvent may be, as esters, for example, ethyl acetate, n-butyl acetate, amyl formate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate. , Butyl Butyl, Methyl Lactate, Ethyl Lactate, γ-Butyrolactone, ε-Caprolactone, δ-Valerolactone, Alkyl Alkoxyacetate (eg Methyl Alkyl Oxyacetate, Ethyl Alkyl Oxyacetate, Butyl Alkyl Oxyacetate (eg Methyl methoxyacetate) , Ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, etc.), alkyl esters of 3-alkyloxypropionic acid (eg, methyl 3-alkyloxypropionate, ethyl 3-alkyloxypropionate, etc.) , Methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, etc.)), 2-alkyloxypropionic acid alkyl esters (eg 2-alkyloxypropionic acid) Methyl, ethyl 2-alkyloxypropionate, propyl 2-alkyloxypropionate and the like (eg, methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, 2) -Ethyl ethoxypropionate)), methyl 2-alkyloxy-2-methylpropionate and ethyl 2-alkyloxy-2-methylpropionate (eg, methyl 2-methoxy-2-methylpropionate, 2-ethoxy-2) -Ethyl methyl propionate, etc.), methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, methyl 2-oxobutate, ethyl 2-oxobutate, etc., and as ethers, for example, diethylene glycol Dimethyl ether, tetrahydrofuran, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, methyl cellosolve acetate, ethyl cellosolve acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate, propylene glycol mono Ethyl ether acetate, propylene glycol mono As propyl ether acetate and the like, and as ketones, for example, methyl ethyl ketone, cyclohexanone, cyclopentanone, 2-heptanone, 3-heptanone, N-methyl-2-pyrrolidone and the like, and as cyclic hydrocarbons, for example, toluene. , Xylene, anisole, limonene and the like, dimethyl sulfoxide is preferably mentioned as a sulfoxide, and a mixture of these organic solvents is also preferably mentioned.
 現像液が有機溶剤を含む現像液である場合、本発明では、特にシクロペンタノン、γ-ブチロラクトンが好ましく、シクロペンタノンがより好ましい。また現像液が有機溶剤を含む場合、有機溶剤は1種又は、2種以上を混合して使用することもできる。 When the developer is a developer containing an organic solvent, cyclopentanone and γ-butyrolactone are particularly preferable, and cyclopentanone is more preferable in the present invention. When the developing solution contains an organic solvent, one kind or a mixture of two or more kinds of organic solvents can be used.
 現像液が有機溶剤を含む現像液である場合、現像液は、50質量%以上が有機溶剤であることが好ましく、70質量%以上が有機溶剤であることがより好ましく、90質量%以上が有機溶剤であることが更に好ましい。また、現像液は、100質量%が有機溶剤であってもよい。 When the developer is a developer containing an organic solvent, 50% by mass or more of the developer is preferably an organic solvent, 70% by mass or more is more preferably an organic solvent, and 90% by mass or more is organic. It is more preferably a solvent. Further, the developing solution may be 100% by mass of an organic solvent.
 現像液は、他の成分を更に含んでもよい。
 他の成分としては、例えば、公知の界面活性剤や公知の消泡剤等が挙げられる。
The developer may further contain other components.
Examples of other components include known surfactants and known defoamers.
 現像液がアルカリ水溶液である場合、アルカリ水溶液が含みうる塩基性化合物としては、TMAH(水酸化テトラメチルアンモニウムヒドロキシド)、KOH(水酸化カリウム)、炭酸ナトリウムなどが挙げられ、好ましくはTMAHである。現像液における塩基性化合物の含有量は、例えばTMAHを用いる場合、現像液全質量中0.01~10質量%が好ましく、0.1~5質量%がより好ましく、0.3~3質量%が更に好ましい。 When the developing solution is an alkaline aqueous solution, examples of the basic compound that the alkaline aqueous solution can contain include TMAH (tetramethylammonium hydroxide), KOH (potassium hydroxide), sodium carbonate and the like, and TMAH is preferable. .. When TMAH is used, for example, the content of the basic compound in the developing solution is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and 0.3 to 3% by mass in the total mass of the developing solution. Is more preferable.
〔現像液の供給方法〕
 現像液の供給方法は、所望のパターンを形成できれば特に制限は無く、基材を現像液に浸漬する方法、基材上にノズルを用いて現像液を供給しパドル現像、または、現像液を連続供給する方法がある。ノズルの種類は特に制限は無く、ストレートノズル、シャワーノズル、スプレーノズル等が挙げられる。
 現像液の浸透性、非画像部の除去性、製造上の効率の観点から、現像液をストレートノズルで供給する方法、又はスプレーノズルにて連続供給する方法が好ましく、画像部への現像液の浸透性の観点からは、スプレーノズルで供給する方法がより好ましい。
 また、現像液をストレートノズルにて連続供給後、基材をスピンし現像液を基材上から除去し、スピン乾燥後に再度ストレートノズルにて連続供給後、基材をスピンし現像液を基材上から除去する工程を採用してもよく、この工程を複数回繰り返しても良い。
 また現像工程における現像液の供給方法としては、現像液が連続的に基材に供給され続ける工程、基材上で現像液が略静止状態で保たれる工程、基材上で現像液を超音波等で振動させる工程及びそれらを組み合わせた工程などが採用可能である。
[How to supply developer]
The method of supplying the developer is not particularly limited as long as a desired pattern can be formed, and the method of immersing the base material in the developer, the method of supplying the developer on the base material using a nozzle, paddle development, or continuous development. There is a way to supply. The type of nozzle is not particularly limited, and examples thereof include a straight nozzle, a shower nozzle, and a spray nozzle.
From the viewpoint of the permeability of the developing solution, the removability of the non-image area, and the manufacturing efficiency, the method of supplying the developing solution with a straight nozzle or the method of continuously supplying the developing solution with a spray nozzle is preferable, and the developing solution to the image area is supplied. From the viewpoint of permeability, the method of supplying with a spray nozzle is more preferable.
Further, after the developing solution is continuously supplied by the straight nozzle, the base material is spun to remove the developing solution from the base material, and after spin drying, the developing solution is continuously supplied by the straight nozzle again, and then the base material is spun to use the developing solution as the base material. A step of removing from the top may be adopted, and this step may be repeated a plurality of times.
Further, as a method of supplying the developer in the developing process, a step in which the developer is continuously supplied to the base material, a step in which the developer is kept in a substantially stationary state on the base material, and a step in which the developer is superposed on the base material. A process of vibrating with a sound wave or the like and a process of combining them can be adopted.
 現像時間としては、5秒~10分間が好ましく、10秒~5分がより好ましい。現像時の現像液の温度は、特に定めるものではないが、通常、10~45℃、好ましくは、20~40℃で行うことができる。 The development time is preferably 5 seconds to 10 minutes, more preferably 10 seconds to 5 minutes. The temperature of the developing solution at the time of development is not particularly specified, but it can be usually 10 to 45 ° C, preferably 20 to 40 ° C.
 現像液を用いた処理の後、更に、リンスを行ってもよい。また、パターン上に接する現像液が乾燥しきらないうちにリンス液を供給するなどの方法を採用しても良い。リンスは、現像液とは異なる溶剤で行うことが好ましい。例えば、樹脂組成物に含まれる溶剤を用いてリンスすることができる。
 現像液が有機溶剤を含む現像液である場合、リンス液としては、PGMEA(プロピレングリコールモノエチルエーテルアセテート)、IPA(イソプロパノール)などが挙げられ、好ましくはPGMEAである。また、アルカリ水溶液を含む現像液による現像に対するリンス液としては、水が好ましい。
 リンス時間は、10秒~10分間が好ましく、20秒~5分間がより好ましく、5秒~1分が更に好ましい。
リンス時のリンス液の温度は、特に定めるものではないが、好ましくは、10~45℃、より好ましくは、18℃~30℃で行うことができる。
After the treatment with the developing solution, further rinsing may be performed. Further, a method such as supplying a rinse liquid before the developer in contact with the pattern is completely dried may be adopted. The rinsing is preferably performed with a solvent different from that of the developing solution. For example, it can be rinsed with the solvent contained in the resin composition.
When the developer is a developer containing an organic solvent, examples of the rinse solution include PGMEA (propylene glycol monoethyl ether acetate), IPA (isopropanol), and the like, preferably PGMEA. Further, water is preferable as the rinsing solution for development with a developing solution containing an alkaline aqueous solution.
The rinsing time is preferably 10 seconds to 10 minutes, more preferably 20 seconds to 5 minutes, still more preferably 5 seconds to 1 minute.
The temperature of the rinsing liquid at the time of rinsing is not particularly determined, but is preferably 10 to 45 ° C, more preferably 18 ° C to 30 ° C.
 リンス液が有機溶剤を含む場合の有機溶剤としては、エステル類として、例えば、酢酸エチル、酢酸-n-ブチル、ギ酸アミル、酢酸イソアミル、酢酸イソブチル、プロピオン酸ブチル、酪酸イソプロピル、酪酸エチル、酪酸ブチル、乳酸メチル、乳酸エチル、γ-ブチロラクトン、ε-カプロラクトン、δ-バレロラクトン、アルキルオキシ酢酸アルキル(例:アルキルオキシ酢酸メチル、アルキルオキシ酢酸エチル、アルキルオキシ酢酸ブチル(例えば、メトキシ酢酸メチル、メトキシ酢酸エチル、メトキシ酢酸ブチル、エトキシ酢酸メチル、エトキシ酢酸エチル等))、3-アルキルオキシプロピオン酸アルキルエステル類(例:3-アルキルオキシプロピオン酸メチル、3-アルキルオキシプロピオン酸エチル等(例えば、3-メトキシプロピオン酸メチル、3-メトキシプロピオン酸エチル、3-エトキシプロピオン酸メチル、3-エトキシプロピオン酸エチル等))、2-アルキルオキシプロピオン酸アルキルエステル類(例:2-アルキルオキシプロピオン酸メチル、2-アルキルオキシプロピオン酸エチル、2-アルキルオキシプロピオン酸プロピル等(例えば、2-メトキシプロピオン酸メチル、2-メトキシプロピオン酸エチル、2-メトキシプロピオン酸プロピル、2-エトキシプロピオン酸メチル、2-エトキシプロピオン酸エチル))、2-アルキルオキシ-2-メチルプロピオン酸メチル及び2-アルキルオキシ-2-メチルプロピオン酸エチル(例えば、2-メトキシ-2-メチルプロピオン酸メチル、2-エトキシ-2-メチルプロピオン酸エチル等)、ピルビン酸メチル、ピルビン酸エチル、ピルビン酸プロピル、アセト酢酸メチル、アセト酢酸エチル、2-オキソブタン酸メチル、2-オキソブタン酸エチル等、並びに、エーテル類として、例えば、ジエチレングリコールジメチルエーテル、テトラヒドロフラン、エチレングリコールモノメチルエーテル、エチレングリコールモノエチルエーテル、メチルセロソルブアセテート、エチルセロソルブアセテート、ジエチレングリコールモノメチルエーテル、ジエチレングリコールモノエチルエーテル、ジエチレングリコールモノブチルエーテル、プロピレングリコールモノメチルエーテル(PGME)、プロピレングリコールモノメチルエーテルアセテート(PGMEA)、プロピレングリコールモノエチルエーテルアセテート、プロピレングリコールモノプロピルエーテルアセテート等、並びに、ケトン類として、例えば、メチルエチルケトン、シクロヘキサノン、シクロペンタノン、2-ヘプタノン、3-ヘプタノン、N-メチル-2-ピロリドン等、並びに、芳香族炭化水素類として、例えば、トルエン、キシレン、アニソール、リモネン等、スルホキシド類としてジメチルスルホキシド、並びに、アルコール類として、メタノール、エタノール、プロパノール、イソプロパノール、ブタノール、ペンタノール、オクタノール、ジエチレングリコール、プロピレングリコール、メチルイソブチルカルビノール、トリエチレングリコール等、並びに、アミド類として、N-メチルピロリドン、N-エチルピロリドン、ジメチルホルムアミド等が好適に挙げられる。 When the rinsing solution contains an organic solvent, the esters include, for example, ethyl acetate, n-butyl acetate, amyl formate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyl, butyl butyrate. , Methyl lactate, ethyl lactate, γ-butyrolactone, ε-caprolactone, δ-valerolactone, alkyl alkyloxyacetate (eg, methyl alkyloxyacetate, ethyl alkyloxyacetate, butyl alkyloxyacetate (eg, methyl methoxyacetate, methoxyacetic acid) Ethyl, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, etc.)), alkyl esters of 3-alkyloxypropionic acid (eg, methyl 3-alkyloxypropionate, ethyl 3-alkyloxypropionate, etc.), etc. (eg, 3-alkyloxypropionate) Methyl methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, etc.)), 2-alkyloxypropionic acid alkyl esters (eg, methyl 2-alkyloxypropionate, 2) -Ethyl alkyloxypropionate, propyl 2-alkyloxypropionate, etc. (eg, methyl 2-methoxypropionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, 2-ethoxypropion) Ethyl acetate)), methyl 2-alkyloxy-2-methylpropionate and ethyl 2-alkyloxy-2-methylpropionate (eg, methyl 2-methoxy-2-methylpropionate, 2-ethoxy-2-methylpropion) Ethyl acetate, etc.), methyl pyruvate, ethyl pyruvate, propyl pyruvate, methyl acetoacetate, ethyl acetoacetate, methyl 2-oxobutate, ethyl 2-oxobutate, etc., and as ethers, for example, diethylene glycol dimethyl ether, tetrahydrofuran , Ethylglycol monomethyl ether, ethylene glycol monoethyl ether, methyl cellosolve acetate, ethyl cellosolve acetate, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether (PGME), propylene glycol monomethyl ether acetate (PGMEA), Propylene glycol monoethyl ether acetate, pu Lopyrene glycol monopropyl ether acetate and the like, and as ketones, for example, methyl ethyl ketone, cyclohexanone, cyclopentanone, 2-heptanone, 3-heptanone, N-methyl-2-pyrrolidone and the like, and as aromatic hydrocarbons. For example, toluene, xylene, anisole, limonene and the like, dimethyl sulfoxide as sulfoxides, and methanol, ethanol, propanol, isopropanol, butanol, pentanol, octanol, diethylene glycol, propylene glycol, methylisobutylcarbinol, triethylene as alcohols. Preferred examples of glycols and the like and amides include N-methylpyrrolidone, N-ethylpyrrolidone, dimethylformamide and the like.
 リンス液が有機溶剤を含む場合、有機溶剤は1種又は、2種以上を混合して使用することができる。本発明では特にシクロペンタノン、γ-ブチロラクトン、ジメチルスルホキシド、N-メチルピロリドン、シクロヘキサノン、PGMEA、PGMEが好ましく、シクロペンタノン、γ-ブチロラクトン、ジメチルスルホキシド、PGMEA、PGMEがより好ましく、シクロヘキサノン、PGMEAがさらに好ましい。 When the rinsing liquid contains an organic solvent, one type or a mixture of two or more types of organic solvent can be used. In the present invention, cyclopentanone, γ-butyrolactone, dimethyl sulfoxide, N-methylpyrrolidone, cyclohexanone, PGMEA and PGME are particularly preferable, cyclopentanone, γ-butyrolactone, dimethyl sulfoxide, PGMEA and PGME are more preferable, and cyclohexanone and PGMEA are more preferable. More preferred.
 リンス液が有機溶剤を含む場合、リンス液は、50質量%以上が有機溶剤であることが好ましく、70質量%以上が有機溶剤であることがより好ましく、90質量%以上が有機溶剤であることが更に好ましい。また、リンス液は、100質量%が有機溶剤であってもよい。 When the rinsing liquid contains an organic solvent, 50% by mass or more of the rinsing liquid is preferably an organic solvent, 70% by mass or more is more preferably an organic solvent, and 90% by mass or more is an organic solvent. Is more preferable. Further, the rinse liquid may be 100% by mass of an organic solvent.
 リンス液は、他の成分を更に含んでもよい。
 他の成分としては、例えば、公知の界面活性剤や公知の消泡剤等が挙げられる。
The rinse solution may further contain other components.
Examples of other components include known surfactants and known defoamers.
〔リンス液の供給方法〕
 リンス液の供給方法は、所望のパターンを形成できれば特に制限は無く、基材をリンス液に浸漬する方法、基材上でのパドルによるリンス液の供給、基材にリンス液をシャワーで供給する方法、基材上にストレートノズル等の手段によりリンス液を連続供給する方法がある。
 リンス液の浸透性、非画像部の除去性、製造上の効率の観点から、リンス液をシャワーノズル、ストレートノズル、スプレーノズルなどで供給する方法があり、スプレーノズルにて連続供給する方法が好ましく、画像部へのリンス液の浸透性の観点からは、スプレーノズルで供給する方法がより好ましい。ノズルの種類は特に制限は無く、ストレートノズル、シャワーノズル、スプレーノズル等が挙げられる。
 すなわち、リンス工程は、リンス液を上記露光後の膜に対してストレートノズルにより供給、又は、連続供給する工程であることが好ましく、リンス液をスプレーノズルにより供給する工程であることがより好ましい。
 またリンス工程におけるリンス液の供給方法としては、リンス液が連続的に基材に供給され続ける工程、基材上でリンス液が略静止状態で保たれる工程、基材上でリンス液を超音波等で振動させる工程及びそれらを組み合わせた工程などが採用可能である。
[Supplying method of rinse liquid]
The method of supplying the rinse liquid is not particularly limited as long as a desired pattern can be formed, and the method of immersing the base material in the rinse liquid, the supply of the rinse liquid with a paddle on the base material, and the supply of the rinse liquid to the base material by a shower. There is a method, a method of continuously supplying a rinse liquid onto a base material by means such as a straight nozzle.
From the viewpoint of the permeability of the rinse liquid, the removability of non-image areas, and the efficiency of manufacturing, there is a method of supplying the rinse liquid with a shower nozzle, a straight nozzle, a spray nozzle, etc., and a method of continuously supplying the rinse liquid with a spray nozzle is preferable. From the viewpoint of the permeability of the rinse liquid into the image portion, the method of supplying the rinse liquid with a spray nozzle is more preferable. The type of nozzle is not particularly limited, and examples thereof include a straight nozzle, a shower nozzle, and a spray nozzle.
That is, the rinsing step is preferably a step of supplying the rinsing liquid to the exposed film by a straight nozzle or continuously, and more preferably a step of supplying the rinsing liquid by a spray nozzle.
Further, as a method of supplying the rinse liquid in the rinsing step, a step of continuously supplying the rinse liquid to the base material, a step of keeping the rinse liquid in a substantially stationary state on the base material, and a step of superimposing the rinse liquid on the base material. A process of vibrating with a sound conditioner or the like and a process of combining them can be adopted.
<加熱工程>
 本発明の製造方法は、現像された上記膜を50~450℃で加熱する工程(加熱工程)を含むことが好ましい。
 加熱工程は、膜形成工程(層形成工程)、乾燥工程、及び現像工程の後に含まれることが好ましい。加熱工程では、例えば上述の熱塩基発生剤が分解することにより塩基が発生し、特定樹脂である前駆体の環化反応が進行する。また、本発明の樹脂組成物は特定樹脂である前駆体以外のラジカル重合性化合物を含んでいてもよいが、未反応の特定樹脂である前駆体以外のラジカル重合性化合物の硬化などもこの工程で進行させることができる。加熱工程における層の加熱温度(最高加熱温度)としては、50℃以上であることが好ましく、80℃以上であることがより好ましく、140℃以上であることが更に好ましく、150℃以上であることが一層好ましく、160℃以上であることがより一層好ましく、170℃以上であることが更に一層好ましい。上限としては、500℃以下であることが好ましく、450℃以下であることがより好ましく、350℃以下であることが更に好ましく、250℃以下であることが一層好ましく、220℃以下であることがより一層好ましい。
<Heating process>
The production method of the present invention preferably includes a step (heating step) of heating the developed film at 50 to 450 ° C.
The heating step is preferably included after the film forming step (layer forming step), the drying step, and the developing step. In the heating step, for example, the above-mentioned thermal base generator decomposes to generate a base, and the cyclization reaction of the precursor, which is a specific resin, proceeds. Further, the resin composition of the present invention may contain a radically polymerizable compound other than the precursor which is a specific resin, but curing of a radically polymerizable compound other than the precursor which is an unreacted specific resin is also in this step. Can be advanced with. The heating temperature (maximum heating temperature) of the layer in the heating step is preferably 50 ° C. or higher, more preferably 80 ° C. or higher, further preferably 140 ° C. or higher, and 150 ° C. or higher. Is even more preferable, 160 ° C. or higher is even more preferable, and 170 ° C. or higher is even more preferable. The upper limit is preferably 500 ° C. or lower, more preferably 450 ° C. or lower, further preferably 350 ° C. or lower, further preferably 250 ° C. or lower, and preferably 220 ° C. or lower. Even more preferable.
 加熱は、加熱開始時の温度から最高加熱温度まで1~12℃/分の昇温速度で行うことが好ましく、2~10℃/分がより好ましく、3~10℃/分が更に好ましい。昇温速度を1℃/分以上とすることにより、生産性を確保しつつ、アミンの過剰な揮発を防止することができ、昇温速度を12℃/分以下とすることにより、硬化膜の残存応力を緩和することができる。加えて、急速加熱可能なオーブンの場合、加熱開始時の温度から最高加熱温度まで1~8℃/秒の昇温速度で行うことが好ましく、2~7℃/秒がより好ましく、3~6℃/秒が更に好ましい。 The heating is preferably performed at a heating rate of 1 to 12 ° C./min from the temperature at the start of heating to the maximum heating temperature, more preferably 2 to 10 ° C./min, and even more preferably 3 to 10 ° C./min. By setting the temperature rise rate to 1 ° C./min or more, it is possible to prevent excessive volatilization of amine while ensuring productivity, and by setting the temperature rise rate to 12 ° C./min or less, the cured film can be prevented. The residual stress can be relaxed. In addition, in the case of an oven capable of rapid heating, it is preferable to carry out from the temperature at the start of heating to the maximum heating temperature at a heating rate of 1 to 8 ° C./sec, more preferably 2 to 7 ° C./sec, and 3 to 6 ° C. ℃ / sec is more preferable.
 加熱開始時の温度は、20℃~150℃が好ましく、20℃~130℃がより好ましく、25℃~120℃が更に好ましい。加熱開始時の温度は、最高加熱温度まで加熱する工程を開始する際の温度のことをいう。例えば、樹脂組成物を基材の上に適用した後、乾燥させる場合、この乾燥後の膜(層)の温度であり、例えば、樹脂組成物に含まれる溶剤の沸点よりも、30~200℃低い温度から徐々に昇温させることが好ましい。 The temperature at the start of heating is preferably 20 ° C. to 150 ° C., more preferably 20 ° C. to 130 ° C., and even more preferably 25 ° C. to 120 ° C. The temperature at the start of heating refers to the temperature at which the process of heating to the maximum heating temperature is started. For example, when the resin composition is applied onto a substrate and then dried, the temperature of the film (layer) after drying is, for example, 30 to 200 ° C., which is higher than the boiling point of the solvent contained in the resin composition. It is preferable to gradually raise the temperature from a low temperature.
 加熱時間(最高加熱温度での加熱時間)は、10~360分であることが好ましく、20~300分であることがより好ましく、30~240分であることが更に好ましい。 The heating time (heating time at the maximum heating temperature) is preferably 10 to 360 minutes, more preferably 20 to 300 minutes, and even more preferably 30 to 240 minutes.
 特に多層の積層体を形成する場合、硬化膜の層間の密着性の観点から、加熱温度は180℃~320℃で加熱することが好ましく、180℃~260℃で加熱することがより好ましい。その理由は定かではないが、この温度とすることで、層間の特定樹脂のエチニル基同士が架橋反応を進行しているためと考えられる。 Particularly when forming a multi-layered laminate, the heating temperature is preferably 180 ° C. to 320 ° C., more preferably 180 ° C. to 260 ° C., from the viewpoint of adhesion between layers of the cured film. The reason is not clear, but it is considered that the ethynyl groups of the specific resin between the layers are undergoing a cross-linking reaction at this temperature.
 加熱は段階的に行ってもよい。例として、25℃から180℃まで3℃/分で昇温し、180℃にて60分保持し、180℃から200℃まで2℃/分で昇温し、200℃にて120分保持する、といった前処理工程を行ってもよい。前処理工程としての加熱温度は100~200℃が好ましく、110~190℃であることがより好ましく、120~185℃であることが更に好ましい。この前処理工程においては、米国特許第9159547号明細書に記載のように紫外線を照射しながら処理することも好ましい。このような前処理工程により膜の特性を向上させることが可能である。前処理工程は10秒間~2時間程度の短い時間で行うとよく、15秒~30分間がより好ましい。前処理は2段階以上のステップとしてもよく、例えば100~150℃の範囲で前処理工程1を行い、その後に150~200℃の範囲で前処理工程2を行ってもよい。 Heating may be performed in stages. As an example, the temperature is raised from 25 ° C. to 180 ° C. at 3 ° C./min and held at 180 ° C. for 60 minutes, the temperature is raised from 180 ° C. to 200 ° C. at 2 ° C./min, and held at 200 ° C. for 120 minutes. , Etc. may be performed. The heating temperature as the pretreatment step is preferably 100 to 200 ° C., more preferably 110 to 190 ° C., and even more preferably 120 to 185 ° C. In this pretreatment step, it is also preferable to carry out the treatment while irradiating with ultraviolet rays as described in US Pat. No. 9,159,547. It is possible to improve the characteristics of the film by such a pretreatment step. The pretreatment step is preferably performed in a short time of about 10 seconds to 2 hours, more preferably 15 seconds to 30 minutes. The pretreatment may be performed in two or more steps. For example, the pretreatment step 1 may be performed in the range of 100 to 150 ° C., and then the pretreatment step 2 may be performed in the range of 150 to 200 ° C.
 更に、加熱後冷却してもよく、この場合の冷却速度としては、1~5℃/分であることが好ましい。 Further, cooling may be performed after heating, and the cooling rate in this case is preferably 1 to 5 ° C./min.
 加熱工程は、窒素、ヘリウム、アルゴンなどの不活性ガスを流す等により、低酸素濃度の雰囲気で行うことが特定樹脂の分解を防ぐ点で好ましい。酸素濃度は、50ppm(体積比)以下が好ましく、20ppm(体積比)以下がより好ましい。
 加熱手段としては、特に限定されないが、例えばホットプレート、赤外炉、電熱式オーブン、熱風式オーブンなどが挙げられる。
The heating step is preferably performed in an atmosphere having a low oxygen concentration by flowing an inert gas such as nitrogen, helium, or argon from the viewpoint of preventing decomposition of the specific resin. The oxygen concentration is preferably 50 ppm (volume ratio) or less, and more preferably 20 ppm (volume ratio) or less.
The heating means is not particularly limited, and examples thereof include a hot plate, an infrared furnace, an electric heating oven, and a hot air oven.
<金属層形成工程>
 本発明の製造方法は、現像後の膜(樹脂組成物層)の表面に金属層を形成する金属層形成工程を含むことが好ましい。
<Metal layer forming process>
The production method of the present invention preferably includes a metal layer forming step of forming a metal layer on the surface of the developed film (resin composition layer).
 金属層としては、特に限定なく、既存の金属種を使用することができ、銅、アルミニウム、ニッケル、バナジウム、チタン、クロム、コバルト、金及びタングステンが例示され、銅、アルミニウム、及び、これらの金属を含む合金がより好ましく、銅が更に好ましい。 As the metal layer, existing metal types can be used without particular limitation, and copper, aluminum, nickel, vanadium, titanium, chromium, cobalt, gold and tungsten are exemplified, and copper, aluminum, and these metals are exemplified. The alloy containing the above is more preferable, and copper is further preferable.
 金属層の形成方法は、特に限定なく、既存の方法を適用することができる。例えば、特開2007-157879号公報、特表2001-521288号公報、特開2004-214501号公報、特開2004-101850号公報に記載された方法を使用することができる。例えば、フォトリソグラフィ、リフトオフ、電解メッキ、無電解メッキ、エッチング、印刷、及びこれらを組み合わせた方法などが考えられる。より具体的には、スパッタリング、フォトリソグラフィ及びエッチングを組み合わせたパターニング方法、フォトリソグラフィと電解メッキを組み合わせたパターニング方法が挙げられる。 The method for forming the metal layer is not particularly limited, and an existing method can be applied. For example, the methods described in JP-A-2007-157879, JP-A-2001-521288, JP-A-2004-214501, and JP-A-2004-101850 can be used. For example, photolithography, lift-off, electrolytic plating, electroless plating, etching, printing, and a method combining these can be considered. More specifically, a patterning method combining sputtering, photolithography and etching, and a patterning method combining photolithography and electrolytic plating can be mentioned.
 金属層の厚さとしては、最も厚肉部で、0.01~100μmが好ましく、0.1~50μmがより好ましく、1~10μmが更に好ましい。 The thickness of the metal layer is preferably 0.01 to 100 μm, more preferably 0.1 to 50 μm, and even more preferably 1 to 10 μm at the thickest portion.
<積層工程>
 本発明の製造方法は、更に、積層工程を含むことが好ましい。
<Laminating process>
The production method of the present invention preferably further includes a laminating step.
 積層工程とは、硬化膜(樹脂層)又は金属層の表面に、再度、(a)膜形成工程(層形成工程)、(b)露光工程、(c)現像工程、(d)加熱工程を、この順に行うことを含む一連の工程である。ただし、(a)の膜形成工程のみを繰り返す態様であってもよい。また、(d)加熱工程は積層の最後又は中間に一括して行う態様としてもよい。すなわち、(a)~(c)の工程を所定の回数繰り返し行い、その後に(d)の加熱をすることで、積層された樹脂組成物層を一括で硬化する態様としてもよい。また、(c)現像工程の後には(e)金属層形成工程を含んでもよく、このときにも都度(d)の加熱を行っても、所定回数積層させた後に一括して(d)の加熱を行ってもよい。積層工程には、更に、上記乾燥工程や加熱工程等を適宜含んでいてもよいことは言うまでもない。 The laminating step means that (a) a film forming step (layer forming step), (b) an exposure step, (c) a developing step, and (d) a heating step are performed again on the surface of the cured film (resin layer) or the metal layer. , A series of steps including performing in this order. However, the mode may be such that only the film forming step (a) is repeated. Further, (d) the heating step may be performed collectively at the end or the middle of the lamination. That is, the steps (a) to (c) may be repeated a predetermined number of times, and then the heating of (d) may be performed to cure the laminated resin composition layers all at once. Further, the (c) developing step may be followed by the (e) metal layer forming step, and even if the heating is performed each time (d), the (d) is collectively performed after laminating a predetermined number of times. Heating may be performed. Needless to say, the laminating step may further include the above-mentioned drying step, heating step, and the like as appropriate.
 積層工程後、更に積層工程を行う場合には、上記加熱工程後、上記露光工程後、又は、上記金属層形成工程後に、更に、表面活性化処理工程を行ってもよい。表面活性化処理としては、プラズマ処理が例示される。 When the laminating step is further performed after the laminating step, the surface activation treatment step may be further performed after the heating step, the exposure step, or the metal layer forming step. An example of the surface activation treatment is plasma treatment.
 上記積層工程は、2~20回行うことが好ましく、2~5回行うことが好ましく、3~5回行うことが更に好ましい。
 また、積層工程における各層は、組成、形状、膜厚等が同一の層であってもよいし、異なる層であってもよい。
The laminating step is preferably performed 2 to 20 times, preferably 2 to 5 times, and more preferably 3 to 5 times.
Further, each layer in the laminating step may be a layer having the same composition, shape, film thickness, etc., or may be a different layer.
 例えば、樹脂層/金属層/樹脂層/金属層/樹脂層/金属層のような、樹脂層が2層以上20層以下とする構成が好ましく、3層以上7層以下の構成がより好ましく、3層以上5層以下が更に好ましい。 For example, a configuration in which the number of resin layers is 2 or more and 20 or less, such as a resin layer / metal layer / resin layer / metal layer / resin layer / metal layer, is preferable, and a configuration of 3 or more and 7 or less is more preferable. More preferably, it has 3 or more layers and 5 or less layers.
 本発明では特に、金属層を設けた後、更に、上記金属層を覆うように、上記樹脂組成物の硬化膜(樹脂層)を形成する態様が好ましい。具体的には、(a)膜形成工程、(b)露光工程、(c)現像工程、(e)金属層形成工程、(d)加熱工程の順序で繰り返す態様、又は、(a)膜形成工程、(b)露光工程、(c)現像工程、(e)金属層形成工程の順序で繰り返し、最後又は中間に一括して(d)加熱工程を設ける態様が挙げられる。樹脂組成物層(樹脂層)を積層する積層工程と、金属層形成工程を交互に行うことにより、樹脂組成物層(樹脂層)と金属層を交互に積層することができる。 In the present invention, it is particularly preferable to form a cured film (resin layer) of the resin composition so as to cover the metal layer after the metal layer is provided. Specifically, a mode in which (a) a film forming step, (b) an exposure step, (c) a developing step, (e) a metal layer forming step, and (d) a heating step are repeated in this order, or (a) film forming. Examples thereof include an embodiment in which (b) an exposure step, (c) a development step, and (e) a metal layer forming step are repeated in this order, and (d) a heating step is collectively provided at the end or in the middle. By alternately performing the laminating step of laminating the resin composition layer (resin layer) and the metal layer forming step, the resin composition layer (resin layer) and the metal layer can be laminated alternately.
(表面活性化処理工程)
 本発明の積層体の製造方法は、上記金属層および感光性樹脂組成物層の少なくとも一部を表面活性化処理する、表面活性化処理工程を含んでもよい。
 表面活性化処理工程は、通常、金属層形成工程の後に行うが、上記露光現像工程の後、感光性樹脂組成物層に表面活性化処理工程を行ってから、金属層形成工程を行ってもよい。
 表面活性化処理は、金属層の少なくとも一部のみに行ってもよいし、露光後の感光性樹脂組成物層の少なくとも一部のみに行ってもよいし、金属層および露光後の感光性樹脂組成物層の両方について、それぞれ、少なくとも一部に行ってもよい。表面活性化処理は、金属層の少なくとも一部について行うことが好ましく、金属層のうち、表面に感光性樹脂組成物層を形成する領域の一部または全部に表面活性化処理を行うことが好ましい。このように、金属層の表面に表面活性化処理を行うことにより、その表面に設けられる樹脂層との密着性を向上させることができる。
 また、表面活性化処理は、露光後の感光性樹脂組成物層(樹脂層)の一部または全部についても行うことが好ましい。このように、感光性樹脂組成物層の表面に表面活性化処理を行うことにより、表面活性化処理した表面に設けられる金属層や樹脂層との密着性を向上させることができる。
 表面活性化処理としては、具体的には、各種原料ガス(酸素、水素、アルゴン、窒素、窒素/水素混合ガス、アルゴン/酸素混合ガスなど)のプラズマ処理、コロナ放電処理、CF/O、NF/O、SF、NF、NF/Oによるエッチング処理、紫外線(UV)オゾン法による表面処理、塩酸水溶液に浸漬して酸化皮膜を除去した後にアミノ基とチオール基を少なくとも一種有する化合物を含む有機表面処理剤への浸漬処理、ブラシを用いた機械的な粗面化処理から選択され、プラズマ処理が好ましく、特に原料ガスに酸素を用いた酸素プラズマ処理が好ましい。コロナ放電処理の場合、エネルギーは、500~200,000J/mが好ましく、1000~100,000J/mがより好ましく、10,000~50,000J/mが最も好ましい。
(Surface activation treatment process)
The method for producing a laminate of the present invention may include a surface activation treatment step of surface activating at least a part of the metal layer and the photosensitive resin composition layer.
The surface activating treatment step is usually performed after the metal layer forming step, but it is also possible to perform the surface activating treatment step on the photosensitive resin composition layer after the exposure development step and then perform the metal layer forming step. good.
The surface activation treatment may be performed on at least a part of the metal layer, on at least a part of the photosensitive resin composition layer after exposure, or on the metal layer and the photosensitive resin after exposure. For both of the composition layers, each may be at least partially. The surface activation treatment is preferably performed on at least a part of the metal layer, and it is preferable to perform the surface activation treatment on a part or all of the region of the metal layer in which the photosensitive resin composition layer is formed on the surface. .. By performing the surface activation treatment on the surface of the metal layer in this way, the adhesion to the resin layer provided on the surface can be improved.
Further, it is preferable that the surface activation treatment is performed on a part or all of the photosensitive resin composition layer (resin layer) after exposure. By performing the surface activation treatment on the surface of the photosensitive resin composition layer in this way, it is possible to improve the adhesion to the metal layer or the resin layer provided on the surface of the surface activation treatment.
Specifically, the surface activation treatment includes plasma treatment of various raw material gases (oxygen, hydrogen, argon, nitrogen, nitrogen / hydrogen mixed gas, argon / oxygen mixed gas, etc.), corona discharge treatment, CF 4 / O 2 , NF 3 / O 2 , SF 6 , NF 3 , NF 3 / O 2 , surface treatment by ultraviolet (UV) ozone method, immersion in hydrochloric acid aqueous solution to remove oxide film, then amino group and thiol group It is selected from a dipping treatment in an organic surface treatment agent containing at least one compound and a mechanical roughening treatment using a brush, and a plasma treatment is preferable, and an oxygen plasma treatment using oxygen as a raw material gas is particularly preferable. For corona discharge treatment, the energy is preferably 500 ~ 200,000J / m 2, more preferably 1000 ~ 100,000J / m 2, and most preferably 10,000 ~ 50,000J / m 2.
 本発明は、本発明の硬化膜又は積層体を含む半導体デバイスも開示する。本発明の樹脂組成物を再配線層用層間絶縁膜の形成に用いた半導体デバイスの具体例としては、特開2016-027357号公報の段落0213~0218の記載及び図1の記載を参酌でき、これらの内容は本明細書に組み込まれる。 The present invention also discloses a semiconductor device containing the cured film or laminate of the present invention. As specific examples of the semiconductor device in which the resin composition of the present invention is used to form the interlayer insulating film for the rewiring layer, the description in paragraphs 0213 to 0218 and FIG. 1 of JP-A-2016-0273557 can be referred to. These contents are incorporated in the present specification.
 以下に実施例を挙げて本発明を更に具体的に説明する。以下の実施例に示す材料、使用量、割合、処理内容、処理手順等は、本発明の趣旨を逸脱しない限り、適宜、変更することができる。従って、本発明の範囲は以下に示す具体例に限定されるものではない。「部」、「%」は特に述べない限り、質量基準である。 The present invention will be described in more detail with reference to examples below. The materials, amounts used, ratios, treatment contents, treatment procedures, etc. shown in the following examples can be appropriately changed as long as they do not deviate from the gist of the present invention. Therefore, the scope of the present invention is not limited to the specific examples shown below. Unless otherwise specified, "part" and "%" are based on mass.
<合成例1:ポリマーA-1の合成>
 4,4’-オキシジフタル酸二無水物(ODPA) 23.48gと4,4’-ビフタル酸二無水物(BPDA) 22.27gをセパラブルフラスコに入れ、2-ヒドロキシエチルメタクリレート(HEMA) 39.69gとγ-ブチロラクトン136.83gを入れて室温下で撹拌し、撹拌しながらピリジン 24.66gを加えて反応混合物を得た。反応による発熱の終了後に室温まで放冷し、16時間室温で放置した。
 次に、氷冷下において、ジシクロヘキシルカルボジイミド(DCC) 62.46gをγ-ブチロラクトン61.57gに溶解した溶液を撹拌しながら40分かけて反応混合物に加え、続いて4,4’-ジアミノジフェニルエーテル(DADPE)27.42gをγ-ブチロラクトン119.73gに懸濁したものを撹拌しながら60分かけて加えた。更に室温で一定の時間において撹拌した後、エチルアルコール7.17gを加えて1時間撹拌し、次に、γ-ブチロラクトン136.83gを加えた。反応混合物に生じた沈殿物をろ過により取り除き、反応液を得た。
 上記一定の時間を長くすることで、ポリイミド前駆体中の環状イミド構造及び環状イソイミド構造の合計含有モル量を多くすることができ、短くすることで、上記合計含有モル量を少なくすることができる。例えば、上記時間を30分間とすることにより、1gの上記ポリイミド前駆体に含まれる上記環状イミド構造及び上記環状イソイミド構造の合計含有モル量が、0.083mmol/gである樹脂が得られた。
 本実施例及び比較例においては、上記一定の時間を適宜調整することにより、ポリイミド前駆体中の環状イミド構造及び環状イソイミド構造の合計含有モル量を変化させた複数のポリイミド前駆体を用いて実験を行った。各実施例及び比較例において、環状イミド構造及び環状イソイミド構造の合計含有モル量がどの程度であるかは、表中の「特定構造 mmol/g」の欄に記載した。
 得られた反応液を716.21gのエチルアルコールに加えて粗ポリマーから成る沈殿物を生成した。生成した粗ポリマーを濾別し、テトラヒドロフラン403.49gに溶解して粗ポリマー溶液を得た。得られた粗ポリマー溶液を8470.26gの水に滴下してポリマーを沈殿させ、得られた沈殿物を濾別した後、真空乾燥して粉末状のポリマー(ポリイミド前駆体)A-1を得た。ポリマーA-1の分子量をゲルパーミエーションクロマトグラフィー(標準ポリスチレン換算)で測定したところ、重量平均分子量(Mw)は20,000であった。
<Synthesis Example 1: Synthesis of Polymer A-1>
23.48 g of 4,4'-oxydiphthalic dianhydride (ODPA) and 22.27 g of 4,4'-biphthalic dianhydride (BPDA) were placed in a separable flask and 2-hydroxyethyl methacrylate (HEMA) 39. 69 g and 136.83 g of γ-butyrolactone were added and stirred at room temperature, and 24.66 g of pyridine was added with stirring to obtain a reaction mixture. After the exothermic reaction was completed, the mixture was allowed to cool to room temperature and left at room temperature for 16 hours.
Next, under ice-cooling, a solution of 62.46 g of dicyclohexylcarbodiimide (DCC) dissolved in 61.57 g of γ-butyrolactone was added to the reaction mixture over 40 minutes with stirring, followed by 4,4'-diaminodiphenyl ether ( 27.42 g of DADPE) suspended in 119.73 g of γ-butyrolactone was added over 60 minutes with stirring. After further stirring at room temperature for a certain period of time, 7.17 g of ethyl alcohol was added and the mixture was stirred for 1 hour, and then 136.83 g of γ-butyrolactone was added. The precipitate formed in the reaction mixture was removed by filtration to obtain a reaction solution.
By lengthening the fixed time, the total molar content of the cyclic imide structure and the cyclic isoimide structure in the polyimide precursor can be increased, and by shortening the total molar content, the total molar content can be reduced. .. For example, by setting the time to 30 minutes, a resin having a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor of 0.083 mmol / g was obtained.
In this example and the comparative example, experiments were carried out using a plurality of polyimide precursors in which the total molar amount of the cyclic imide structure and the cyclic isoimide structure in the polyimide precursor was changed by appropriately adjusting the above-mentioned fixed time. Was done. In each Example and Comparative Example, the total molar content of the cyclic imide structure and the cyclic isoimide structure is described in the column of "Specific structure mmol / g" in the table.
The obtained reaction solution was added to 716.21 g of ethyl alcohol to form a precipitate composed of a crude polymer. The produced crude polymer was filtered off and dissolved in tetrahydrofuran 403.49 g to obtain a crude polymer solution. The obtained crude polymer solution was added dropwise to 8470.26 g of water to precipitate the polymer, and the obtained precipitate was filtered off and then vacuum dried to obtain a powdered polymer (polyimide precursor) A-1. rice field. When the molecular weight of the polymer A-1 was measured by gel permeation chromatography (standard polystyrene conversion), the weight average molecular weight (Mw) was 20,000.
<合成例2:ポリマーA-2の合成>
 ODPA 23.48gとBPDA 22.27gを、ODPA 46.96gに変更した以外は、合成例1と同様の方法により、ポリマーA-2を合成した。実施例において、環状イミド構造及び環状イソイミド構造の合計含有モル量がどの程度であるかは、表中の「特定構造 mmol/g」の欄に記載した。
<Synthesis Example 2: Synthesis of Polymer A-2>
Polymer A-2 was synthesized by the same method as in Synthesis Example 1 except that 23.48 g of ODPA and 22.27 g of BPDA were changed to 46.96 g of ODPA. In the examples, the total molar content of the cyclic imide structure and the cyclic isoimide structure is described in the column of “specific structure mmol / g” in the table.
<合成例3:ポリマーA-3の合成>
 ODPA 23.48gとBPDA 22.27gを、ODPA 46.96gに変更し、HEMA 39.69gを、HEMA 19.85g及びジエチレングリコールモノメチルエーテル 18.32gに変更した以外は、合成例1と同様の方法により、ポリマーA-3を合成した。実施例において、環状イミド構造及び環状イソイミド構造の合計含有モル量がどの程度であるかは、表中の「特定構造 mmol/g」の欄に記載した。
<Synthesis Example 3: Synthesis of Polymer A-3>
By the same method as in Synthesis Example 1, except that 23.48 g of ODPA and 22.27 g of BPDA were changed to 46.96 g of ODPA and 39.69 g of HEMA was changed to 19.85 g of HEMA and 18.32 g of diethylene glycol monomethyl ether. , Polymer A-3 was synthesized. In the examples, the total molar content of the cyclic imide structure and the cyclic isoimide structure is described in the column of “specific structure mmol / g” in the table.
<合成例4:ポリマーA-4の合成>
 撹拌機、コンデンサー及び内部温度計を取りつけた平底ジョイントを備えた乾燥反応器中で水分を除去しながら、4,6-ジヒドロキシ-1,3-フェニレンジアミン二塩酸塩 10.65g(50ミリモル)をN-メチルピロリドン(NMP) 85.8g中に溶解させた。次に、テレフタル酸クロリド 9.74g(48ミリモル)をNMP 55.0gに溶解したものを、1時間かけて滴下し、25℃で一定の時間撹拌した。
 上記一定の時間を長くすることで、ポリベンゾオキサゾール前駆体中のベンゾオキサゾール構造の含有モル量を多くすることができ、短くすることで、ポリベンゾオキサゾール前駆体中のベンゾオキサゾール構造の含有モル量を少なくすることができる。例えば、15分間とすることで、ベンゾオキサゾール構造の含有モル量を0.373mmol/gとすることができる。
 撹拌後、2リットルの水/メタノール=75/25(体積比)中で沈殿させ、2,000rpmの速度で30分間撹拌した。析出したポリベンゾオキサゾール前駆体樹脂を濾過して除き、1.5リットルの水でかけ洗いした。得られた樹脂を減圧下で、40℃で1日間乾燥し、A-4を得た。
<Synthesis Example 4: Synthesis of Polymer A-4>
10.65 g (50 mmol) of 4,6-dihydroxy-1,3-phenylenediamine dihydrochloride while removing water in a drying reactor with a flat bottom joint equipped with a stirrer, condenser and internal thermometer. It was dissolved in 85.8 g of N-methylpyrrolidone (NMP). Next, 9.74 g (48 mmol) of terephthalic acid chloride dissolved in 55.0 g of NMP was added dropwise over 1 hour, and the mixture was stirred at 25 ° C. for a certain period of time.
By lengthening the above fixed time, the molar content of the benzoxazole structure in the polybenzoxazole precursor can be increased, and by shortening it, the molar content of the benzoxazole structure in the polybenzoxazole precursor can be increased. Can be reduced. For example, the molar content of the benzoxazole structure can be set to 0.373 mmol / g for 15 minutes.
After stirring, the mixture was precipitated in 2 liters of water / methanol = 75/25 (volume ratio) and stirred at a rate of 2,000 rpm for 30 minutes. The precipitated polybenzoxazole precursor resin was filtered off and washed with 1.5 liters of water. The obtained resin was dried under reduced pressure at 40 ° C. for 1 day to obtain A-4.
<合成例5:ポリマーA-5の合成>
 トリメリット酸無水物 29.08gをセパラブルフラスコに入れ、2-ヒドロキシエチルメタクリレート(HEMA) 19.85gとγ-ブチロラクトン136.83gを入れて室温下で撹拌し、撹拌しながらピリジン 24.66gを加えて反応混合物を得た。反応による発熱の終了後に室温まで放冷し、16時間室温で放置した。
 次に、氷冷下において、ジシクロヘキシルカルボジイミド(DCC) 62.46gをγ-ブチロラクトン61.57gに溶解した溶液を撹拌しながら40分かけて反応混合物に加え、続いて4,4’-ジアミノジフェニルエーテル(DADPE)27.42gをγ-ブチロラクトン119.73gに懸濁したものを撹拌しながら60分かけて加えた。更に室温で一定の時間において撹拌した後、エチルアルコール7.17gを加えて1時間撹拌し、次に、γ-ブチロラクトン136.83gを加えた。反応混合物に生じた沈殿物をろ過により取り除き、反応液を得た。
 上記一定の時間を長くすることで、ポリアミドイミド前駆体中の環状イミド構造及び環状イソイミド構造の合計含有モル量を多くすることができ、短くすることで、上記合計含有モル量を少なくすることができる。例えば、15分間とすることで、ベンゾオキサゾール構造の含有モル量を0.104mmol/gとすることができる。
 得られた反応液を716.21gのエチルアルコールに加えて粗ポリマーから成る沈殿物を生成した。生成した粗ポリマーを濾別し、テトラヒドロフラン403.49gに溶解して粗ポリマー溶液を得た。得られた粗ポリマー溶液を8470.26gの水に滴下してポリマーを沈殿させ、得られた沈殿物を濾別した後、真空乾燥して粉末状のポリマー(ポリアミドイミド前駆体)A-5を得た。
<Synthesis Example 5: Synthesis of Polymer A-5>
Put 29.08 g of trimellitic acid anhydride in a separable flask, add 19.85 g of 2-hydroxyethyl methacrylate (HEMA) and 136.83 g of γ-butyrolactone, and stir at room temperature to add 24.66 g of pyridine while stirring. In addition, a reaction mixture was obtained. After the exothermic reaction was completed, the mixture was allowed to cool to room temperature and left at room temperature for 16 hours.
Next, under ice-cooling, a solution of 62.46 g of dicyclohexylcarbodiimide (DCC) dissolved in 61.57 g of γ-butyrolactone was added to the reaction mixture over 40 minutes with stirring, followed by 4,4'-diaminodiphenyl ether ( 27.42 g of DADPE) suspended in 119.73 g of γ-butyrolactone was added over 60 minutes with stirring. After further stirring at room temperature for a certain period of time, 7.17 g of ethyl alcohol was added and the mixture was stirred for 1 hour, and then 136.83 g of γ-butyrolactone was added. The precipitate formed in the reaction mixture was removed by filtration to obtain a reaction solution.
By lengthening the fixed time, the total molar content of the cyclic imide structure and the cyclic isoimide structure in the polyamide-imide precursor can be increased, and by shortening the total molar content, the total molar content can be reduced. can. For example, the molar content of the benzoxazole structure can be 0.104 mmol / g for 15 minutes.
The obtained reaction solution was added to 716.21 g of ethyl alcohol to form a precipitate composed of a crude polymer. The produced crude polymer was filtered off and dissolved in tetrahydrofuran 403.49 g to obtain a crude polymer solution. The obtained crude polymer solution was added dropwise to 8470.26 g of water to precipitate the polymer, the obtained precipitate was filtered off, and then vacuum dried to obtain a powdered polymer (polyamideimide precursor) A-5. Obtained.
<合成例6:ポリマーA-6の合成>
 ODPA 23.48gとBPDA 22.27gを、BPDA 44.54gに変更した以外は、合成例1と同様の方法により、ポリマーA-6を合成した。実施例において、環状イミド構造及び環状イソイミド構造の合計の含有モル量がどの程度であるかは、表中の「特定構造 mmol/g」の欄に記載した。
<Synthesis Example 6: Synthesis of Polymer A-6>
Polymer A-6 was synthesized by the same method as in Synthesis Example 1 except that 23.48 g of ODPA and 22.27 g of BPDA were changed to 44.54 g of BPDA. In the examples, the total molar content of the cyclic imide structure and the cyclic isoimide structure is described in the column of “specific structure mmol / g” in the table.
<合成例7:ポリマーA-7の合成>
 ODPA 23.48gとBPDA 22.27gを、ODPA 46.96gに変更し、HEMA 39.69gを、下記式(7-1)で表される化合物 52.52gに変更した以外は、合成例1と同様の方法により、ポリマーA-7を合成した。実施例において、環状イミド構造及び記環状イソイミド構造の合計含有モル量がどの程度であるかは、表中の「特定構造 mmol/g」の欄に記載した。
Figure JPOXMLDOC01-appb-C000059
<Synthesis Example 7: Synthesis of Polymer A-7>
Synthetic Example 1 and Synthetic Example 1 except that 23.48 g of ODPA and 22.27 g of BPDA were changed to 46.96 g of ODPA and 39.69 g of HEMA was changed to 52.52 g of the compound represented by the following formula (7-1). Polymer A-7 was synthesized by the same method. In the examples, the total molar content of the cyclic imide structure and the cyclic isoimide structure is described in the column of “specific structure mmol / g” in the table.
Figure JPOXMLDOC01-appb-C000059
<実施例及び比較例>
 各実施例において、それぞれ、下記表に記載の成分を混合し、各硬化性樹脂組成物を得た。また、各比較例において、それぞれ、下記表に記載の成分を混合し、各比較用組成物を得た。
 具体的には、表1~表5に記載の各成分の含有量は、表1~表5の各欄の括弧内に記載の量(質量部)とした。
 得られた硬化性樹脂組成物及び比較用組成物を、細孔の幅が0.8μmのポリテトラフルオロエチレン製フィルターを用いて加圧ろ過した。
 また、表1~表5中、「-」の記載は該当する成分を組成物が含有していないことを示している。
<Examples and Comparative Examples>
In each example, the components listed in the table below were mixed to obtain each curable resin composition. Further, in each comparative example, the components listed in the following table were mixed to obtain each comparative composition.
Specifically, the content of each component shown in Tables 1 to 5 is the amount (parts by mass) shown in parentheses in each column of Tables 1 to 5.
The obtained curable resin composition and comparative composition were pressure-filtered using a filter made of polytetrafluoroethylene having a pore width of 0.8 μm.
Further, in Tables 1 to 5, the description of "-" indicates that the composition does not contain the corresponding component.
Figure JPOXMLDOC01-appb-T000060
Figure JPOXMLDOC01-appb-T000060
Figure JPOXMLDOC01-appb-T000061
Figure JPOXMLDOC01-appb-T000061
Figure JPOXMLDOC01-appb-T000062
Figure JPOXMLDOC01-appb-T000062
Figure JPOXMLDOC01-appb-T000063
Figure JPOXMLDOC01-appb-T000063
Figure JPOXMLDOC01-appb-T000064
Figure JPOXMLDOC01-appb-T000064
 表1~表5に記載した各成分の詳細は下記の通りである。 Details of each component listed in Tables 1 to 5 are as follows.
〔樹脂〕
・A-1~A-7:上記合成例により得られたポリマーA-1~A-7
〔resin〕
-A-1 to A-7: Polymers A-1 to A-7 obtained by the above synthetic example.
〔感光剤(光ラジカル重合開始剤)〕
・B-1~B-3:下記構造の化合物
Figure JPOXMLDOC01-appb-C000065
[Photosensitizer (photoradical polymerization initiator)]
-B-1 to B-3: Compounds having the following structure
Figure JPOXMLDOC01-appb-C000065
〔有機金属錯体〕
・X-1:ビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロ-3-(1H-ピロール-1-イル)フェニル)チタニウム
・X-2:ペンタメチルシクロペンタジエニルチタニウムトリメトキサイド
・X-3:ビス(η5-2,4-シクロペンタジエン-1-イル)ビス(2,6-ジフルオロフェニル)チタニウム
・X-4:テトライソプロポキシチタン(マツモトファインケミカル社製)
・X-5:ジイソプロポキシビス(アセチルアセトナト)チタン(マツモトファインケミカル社製)
・X-6~X-8:下記構造の化合物。
Figure JPOXMLDOC01-appb-C000066

上記X-1及びX-3は光ラジカル重合開始能を有する化合物である。
[Organometallic complex]
-X-1: Bis (η5-2,4-cyclopentadiene-1-yl) Bis (2,6-difluoro-3- (1H-pyrrole-1-yl) phenyl) Titanium-X-2: Pentamethylcyclo Pentazienyl Titanium Trimethoxide ・ X-3: Bis (η5-2,4-Cyclopentadiene-1-yl) Bis (2,6-difluorophenyl) Titanium ・ X-4: Tetraisopropoxytitanium (Matsumoto Fine Chemicals) Made)
・ X-5: Diisopropoxybis (acetylacetonato) titanium (manufactured by Matsumoto Fine Chemical Co., Ltd.)
-X-6 to X-8: Compounds having the following structures.
Figure JPOXMLDOC01-appb-C000066

The above X-1 and X-3 are compounds having an ability to initiate photoradical polymerization.
〔架橋剤(ラジカル架橋剤)〕
・C-1~C-2:下記構造の化合物
Figure JPOXMLDOC01-appb-C000067
[Crosslinking agent (radical crosslinking agent)]
-C-1 to C-2: Compounds with the following structure
Figure JPOXMLDOC01-appb-C000067
〔重合禁止剤、マイグレーション抑制剤〕
・D-1~D-7:下記構造の化合物
Figure JPOXMLDOC01-appb-C000068
[Polymerization inhibitor, migration inhibitor]
-D-1 to D-7: Compounds having the following structure
Figure JPOXMLDOC01-appb-C000068
〔添加剤〕
・E-1~E-6:下記構造の化合物
Figure JPOXMLDOC01-appb-C000069
〔Additive〕
-E-1 to E-6: Compounds with the following structure
Figure JPOXMLDOC01-appb-C000069
〔金属接着性改良剤〕
・F-1~F-6:下記構造の化合物
Figure JPOXMLDOC01-appb-C000070

上記構造式中、Meはメチル基を、Etはエチル基をそれぞれ表す。
[Metal adhesion improver]
-F-1 to F-6: Compounds with the following structure
Figure JPOXMLDOC01-appb-C000070

In the above structural formula, Me represents a methyl group and Et represents an ethyl group.
〔溶媒(溶剤)〕
・NMP:N-メチル-2-ピロリドン
・EL:乳酸エチル
・DMSO:ジメチルスルホキシド
[Solvent (solvent)]
-NMP: N-methyl-2-pyrrolidone-EL: Ethyl lactate-DMSO: Dimethyl sulfoxide
<評価>
〔環状構造の含有モル量の測定〕
 各実施例で使用した樹脂について、1gのポリイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量、1gのポリベンゾオキサゾール前駆体に含まれるベンゾオキサゾール構造の含有モル量、1gのポリアミドイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量をそれぞれ測定した。測定結果は、表中の「特定構造 mmol/g」の欄に記載した。
 具体的には、NMRを用い,ポリマー0.1gを重DMSO 0.9gに溶解して測定した。ポリイミド前駆体又はポリアミドイミド前駆体に関しては,7.15ppm付近のピーク面積と芳香環のピーク面積の比率から環状イミド構造量を特定した
 同様に、ポリイミド前駆体又はポリアミドイミド前駆体における環状イソイミド構造、ポリベンゾオキサゾール前駆体におけるベンゾオキサゾール構造の量を特定した。
<Evaluation>
[Measurement of molar content of cyclic structure]
For the resin used in each example, the total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor, and the molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor, 1 g. The total molar content of the cyclic imide structure and the cyclic isoimide structure contained in the polyamide-imide precursor was measured. The measurement results are described in the column of "Specific structure mmol / g" in the table.
Specifically, using NMR, 0.1 g of the polymer was dissolved in 0.9 g of heavy DMSO for measurement. Regarding the polyimide precursor or the polyamide-imide precursor, the cyclic imide structure amount was specified from the ratio of the peak area around 7.15 ppm to the peak area of the aromatic ring. Similarly, the cyclic isoimide structure in the polyimide precursor or the polyamide-imide precursor, The amount of benzoxazole structure in the polybenzoxazole precursor was identified.
〔解像性評価〕
 各実施例又は比較例において、調製した硬化性樹脂組成物又は比較用組成物を、シリコンウエハ上にスピンコート法により塗布した。上記シリコンウエハをホットプレート上で、100℃で5分間乾燥し、シリコンウエハ上に20μmの均一な厚さの硬化性樹脂組成物層を形成した。
 露光条件に「M」と記載した例においては、シリコンウエハ上の硬化性樹脂組成物層を、ステッパーを用いて露光した。露光は表中の「露光波長 nm」に記載した波長の光を用い、5μm~25μmまで1μm刻みのヒューズボックスのフォトマスクを使用して、露光を行った。露光量は後述の最小線幅を最小とする露光量とした。
 露光条件に「D」と記載した例においては、ダイレクト露光装置(アドテック DE-6UH III)を用いて露光した。露光は波長405nmにおいて、露光部が5μmから25μmまで1μm刻みのラインアンドスペースパターンにおけるライン部となるようなレーザーダイレクトイメージング露光を行った。露光量は後述の最小線幅を最小とする露光量とした。
 露光した硬化性樹脂組成物層を、シクロペンタノンで60秒間現像した後に、PGMEA(プロピレングリコールモノメチルエーテルアセテート)でリンスした。
 現像後に得られたパターンにおいて、ラインパターンの間にシリコンウエハが露出しているラインパターンのうち線幅が最小であるものの線幅を「最小線幅」として、下記評価基準に従って評価した。線幅が小さければ小さいほど解像性に優れるといえ、例えば、その後のめっき工程で形成される金属配線幅を微細化できることを表すため、好ましい結果となる。測定限界は5μmである。評価結果は、表中の「解像性」の欄に記載した。
-評価基準-
 A:最小線幅が5μm以上8μm未満であった。
 B:最小線幅が8μm以上10μm未満であった。
 C:最小線幅が10μm以上12μm未満であった。
 D:最小線幅が12μm以上であった。
[Resolution evaluation]
In each Example or Comparative Example, the prepared curable resin composition or comparative composition was applied onto a silicon wafer by a spin coating method. The silicon wafer was dried on a hot plate at 100 ° C. for 5 minutes to form a curable resin composition layer having a uniform thickness of 20 μm on the silicon wafer.
In the example described as "M" in the exposure conditions, the curable resin composition layer on the silicon wafer was exposed using a stepper. The exposure was performed using light having the wavelength described in "Exposure wavelength nm" in the table, and using a photomask of a fuse box from 5 μm to 25 μm in 1 μm increments. The exposure amount was the exposure amount that minimizes the minimum line width described later.
In the example described as "D" in the exposure condition, the exposure was performed using a direct exposure apparatus (Adtech DE-6UH III). The exposure was performed by laser direct imaging exposure at a wavelength of 405 nm so that the exposed portion became a line portion in a line and space pattern in 1 μm increments from 5 μm to 25 μm. The exposure amount was the exposure amount that minimizes the minimum line width described later.
The exposed curable resin composition layer was developed with cyclopentanone for 60 seconds and then rinsed with PGMEA (propylene glycol monomethyl ether acetate).
In the pattern obtained after development, among the line patterns in which the silicon wafer was exposed between the line patterns, the line width of the line pattern having the smallest line width was defined as the "minimum line width" and evaluated according to the following evaluation criteria. It can be said that the smaller the line width is, the better the resolution is. For example, it means that the metal wiring width formed in the subsequent plating step can be miniaturized, which is a preferable result. The measurement limit is 5 μm. The evaluation results are described in the "Resolution" column in the table.
-Evaluation criteria-
A: The minimum line width was 5 μm or more and less than 8 μm.
B: The minimum line width was 8 μm or more and less than 10 μm.
C: The minimum line width was 10 μm or more and less than 12 μm.
D: The minimum line width was 12 μm or more.
〔露光感度評価〕
 上記解像性評価と同様の方法によりシリコンウエハ上に20μmの均一な厚さの硬化性樹脂組成物層を形成した。
 露光条件に「M」と記載した例においては、シリコンウエハ上の硬化性樹脂組成物層を、ステッパーにより、直径15.0μmのマスク部(表中の現像条件の欄に「ネガ」と記載されている例)又は非マスク部(表中の現状条件の欄に「ポジ」と記載されている例)を有するフォトマスクを用いて露光した。露光波長は表中の「露光波長 nm」に記載した。露光量は50~500mJ/cmの範囲で50mJ/cm刻みで変化させた。
 露光条件に「D」と記載した例においては、ダイレクト露光装置(アドテック DE-6UH III)を用いてレーザーダイレクトイメージング露光を行った。露光波長は405nmとし、直径15.0μmの非露光部が形成されるよう露光した。露光量は50~500mJ/cmの範囲で50mJ/cm刻みで変化させた。
 下底の径が15.0μmのホールパターンが形成される最小の露光量をから、下記評価基準に従い、感度を評価した。上記最小の露光量が小さいほど(高感度であるほど)好ましく、露光感度に優れるといえる。評価結果は、表中の「感度」の欄に記載した。
-評価基準-
 A:上記最小の露光量が100mJ/cm未満であった。
 B:上記最小の露光量が100mJ/cm以上150mJ/cm未満であった。
 C:上記最小の露光量が150mJ/cm以上であった。
[Exposure sensitivity evaluation]
A curable resin composition layer having a uniform thickness of 20 μm was formed on the silicon wafer by the same method as in the above resolution evaluation.
In the example in which "M" is described in the exposure condition, the curable resin composition layer on the silicon wafer is described as "negative" in the mask portion having a diameter of 15.0 μm by a stepper (in the column of development conditions in the table). (Example) or a photomask having a non-masked portion (an example in which "Positive" is described in the column of current conditions in the table) was used for exposure. The exposure wavelength is described in "Exposure wavelength nm" in the table. The exposure amount was varied in 50 mJ / cm 2 increments in the range of 50 ~ 500mJ / cm 2.
In the example described as "D" in the exposure condition, laser direct imaging exposure was performed using a direct exposure apparatus (Adtech DE-6UH III). The exposure wavelength was 405 nm, and exposure was performed so that an unexposed portion having a diameter of 15.0 μm was formed. The exposure amount was varied in 50 mJ / cm 2 increments in the range of 50 ~ 500mJ / cm 2.
The sensitivity was evaluated according to the following evaluation criteria from the minimum exposure amount at which a hole pattern having a bottom diameter of 15.0 μm was formed. It can be said that the smaller the minimum exposure amount (the higher the sensitivity), the more preferable, and the better the exposure sensitivity. The evaluation results are described in the "Sensitivity" column in the table.
-Evaluation criteria-
A: The minimum exposure amount was less than 100 mJ / cm 2.
B: the minimum exposure amount is less than 100 mJ / cm 2 or more 150 mJ / cm 2.
C: The minimum exposure amount was 150 mJ / cm 2 or more.
 以上の結果から、本発明の硬化性樹脂組成物は解像性に優れることがわかる。
 比較例1~4に係る比較用組成物に含まれるポリイミド前駆体は、1gのポリイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が0.08mmol/g未満である。
 比較例5に係る比較用組成物に含まれるポリイミド前駆体は、1gのポリイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が1.68mmol/gを超える。
 比較例6に係る比較用組成物に含まれるポリベンゾオキサゾール前駆体は、1gのポリベンゾオキサゾール前駆体に含まれる上記ベンゾオキサゾール構造の含有モル量が0.22mmol/g未満である。
 比較例7に係る比較用組成物に含まれるポリベンゾオキサゾール前駆体は、1gのポリベンゾオキサゾール前駆体に含まれる上記ベンゾオキサゾール構造の含有モル量が3.97mmol/gを超える。
 比較例8に係る比較用組成物に含まれるポリアミドイミド前駆体は、1gのポリイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が1.186mmol/gを超える。
 比較例9に係る比較用組成物に含まれるポリアミドイミド前駆体は、1gのポリアミドイミド前駆体に含まれる環状イミド構造及び環状イソイミド構造の合計含有モル量が0.062mmol/g未満である。
 これらの比較用組成物を用いた場合、解像性に劣ることがわかる。
From the above results, it can be seen that the curable resin composition of the present invention is excellent in resolution.
The polyimide precursor contained in the comparative compositions according to Comparative Examples 1 to 4 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor of less than 0.08 mmol / g.
The polyimide precursor contained in the comparative composition according to Comparative Example 5 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor exceeding 1.68 mmol / g.
The polybenzoxazole precursor contained in the comparative composition according to Comparative Example 6 has a molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor of less than 0.22 mmol / g.
The polybenzoxazole precursor contained in the comparative composition according to Comparative Example 7 has a molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor exceeding 3.97 mmol / g.
The polyamide-imide precursor contained in the comparative composition according to Comparative Example 8 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor exceeding 1.186 mmol / g.
The polyamide-imide precursor contained in the comparative composition according to Comparative Example 9 has a total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamide-imide precursor of less than 0.062 mmol / g.
It can be seen that when these comparative compositions are used, the resolution is inferior.
<実施例101>
 実施例1において使用した硬化性樹脂組成物を、表面に銅薄層が形成された樹脂基材の銅薄層の表面にスピンコート法により層状に適用して、100℃で4分間乾燥し、膜厚20μmの感光膜を形成した後、ステッパー((株)ニコン製、NSR1505 i6)を用いて露光した。露光はマスク(パターンが1:1ラインアンドスペースであり、線幅が10μmであるバイナリマスク)を介して、波長365nmで行った。露光後、100℃で4分間加熱した。上記加熱後、シクロヘキサノンで2分間現像し、PGMEAで30秒間リンスし、層のパターンを得た。
 次いで、窒素雰囲気下で、10℃/分の昇温速度で昇温し、230℃に達した後、230℃で120分間維持して、再配線層用層間絶縁膜を形成した。この再配線層用層間絶縁膜は、絶縁性に優れていた。
 また、これらの再配線層用層間絶縁膜を使用して半導体デバイスを製造したところ、問題なく動作することを確認した。
<Example 101>
The curable resin composition used in Example 1 was applied in layers to the surface of the copper thin layer of the resin base material having the copper thin layer formed on the surface by a spin coating method, and dried at 100 ° C. for 4 minutes. After forming a photosensitive film having a film thickness of 20 μm, exposure was performed using a stepper (NSR1505 i6, manufactured by Nikon Corporation). Exposure was performed through a mask (a binary mask with a pattern of 1: 1 line and space and a line width of 10 μm) at a wavelength of 365 nm. After the exposure, it was heated at 100 ° C. for 4 minutes. After the above heating, it was developed with cyclohexanone for 2 minutes and rinsed with PGMEA for 30 seconds to obtain a layer pattern.
Next, the temperature was raised at a heating rate of 10 ° C./min under a nitrogen atmosphere, and after reaching 230 ° C., the temperature was maintained at 230 ° C. for 120 minutes to form an interlayer insulating film for the rewiring layer. The interlayer insulating film for the rewiring layer was excellent in insulating properties.
Moreover, when a semiconductor device was manufactured using these interlayer insulating films for the rewiring layer, it was confirmed that the semiconductor device operated without any problem.

Claims (17)

  1.  環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリイミド前駆体、ベンゾオキサゾール構造を含むポリベンゾオキサゾール前駆体、及び、環状イミド構造及び環状イソイミド構造の少なくとも一方を含むポリアミドイミド前駆体よりなる群から選ばれた少なくとも1種の樹脂、並びに、
     有機金属錯体を含み、
     1gの前記ポリイミド前駆体に含まれる前記環状イミド構造及び前記環状イソイミド構造の合計含有モル量が、0.08~1.68mmol/gであり、
     1gの前記ポリベンゾオキサゾール前駆体に含まれる前記ベンゾオキサゾール構造の含有モル量が、0.22~3.97mmol/gであり、
     1gの前記ポリアミドイミド前駆体に含まれる前記環状イミド構造及び前記環状イソイミド構造の合計含有モル量が、0.062~1.186mmol/gである、
     硬化性樹脂組成物。
    Selected from the group consisting of a polyimide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure, a polybenzoxazole precursor containing a benzoxazole structure, and a polyamide-imide precursor containing at least one of a cyclic imide structure and a cyclic isoimide structure. At least one resin, as well as
    Contains organometallic complexes
    The total molar amount of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyimide precursor is 0.08 to 1.68 mmol / g.
    The molar content of the benzoxazole structure contained in 1 g of the polybenzoxazole precursor is 0.22 to 3.97 mmol / g.
    The total molar content of the cyclic imide structure and the cyclic isoimide structure contained in 1 g of the polyamide-imide precursor is 0.062 to 1.186 mmol / g.
    Curable resin composition.
  2.  光重合開始剤を更に含む、請求項1に記載の硬化性樹脂組成物。 The curable resin composition according to claim 1, further comprising a photopolymerization initiator.
  3.  前記光重合開始剤がオキシム化合物である、請求項1又は2に記載の硬化性樹脂組成物。 The curable resin composition according to claim 1 or 2, wherein the photopolymerization initiator is an oxime compound.
  4.  架橋剤を更に含む、請求項1~3のいずれか1項に記載の硬化性樹脂組成物。 The curable resin composition according to any one of claims 1 to 3, further comprising a cross-linking agent.
  5.  前記有機金属錯体が、メタロセン化合物である、請求項1~4のいずれか1項に記載の硬化性樹脂組成物。 The curable resin composition according to any one of claims 1 to 4, wherein the organometallic complex is a metallocene compound.
  6.  前記有機金属錯体に含まれる金属が、チタン、ジルコニウム及びハフニウムよりなる群から選ばれた少なくとも1種の金属である、請求項1~5のいずれか1項に記載の硬化性樹脂組成物。 The curable resin composition according to any one of claims 1 to 5, wherein the metal contained in the organometallic complex is at least one metal selected from the group consisting of titanium, zirconium and hafnium.
  7.  前記有機金属錯体が、光ラジカル重合開始能を有する、請求項1~6のいずれか1項に記載の硬化性樹脂組成物。 The curable resin composition according to any one of claims 1 to 6, wherein the organometallic complex has an ability to initiate photoradical polymerization.
  8.  ネガ型現像に供される感光膜の形成に用いられる、請求項1~7のいずれか1項に記載の硬化性樹脂組成物。 The curable resin composition according to any one of claims 1 to 7, which is used for forming a photosensitive film to be used for negative development.
  9.  再配線層用層間絶縁膜の形成に用いられる、請求項1~8のいずれか1項に記載の硬化性樹脂組成物。 The curable resin composition according to any one of claims 1 to 8, which is used for forming an interlayer insulating film for a rewiring layer.
  10.  請求項1~9のいずれか1項に記載の硬化性樹脂組成物を硬化してなる硬化膜。 A cured film obtained by curing the curable resin composition according to any one of claims 1 to 9.
  11.  請求項10に記載の硬化膜を2層以上含み、前記硬化膜同士のいずれかの間に金属層を含む積層体。 A laminate containing two or more layers of the cured film according to claim 10 and containing a metal layer between any of the cured films.
  12.  請求項1~9のいずれか1項に記載の硬化性樹脂組成物を基板に適用して膜を形成する膜形成工程を含む、硬化膜の製造方法。 A method for producing a cured film, which comprises a film forming step of applying the curable resin composition according to any one of claims 1 to 9 to a substrate to form a film.
  13.  前記膜を露光する露光工程及び前記膜を現像する現像工程を含む、請求項12に記載の硬化膜の製造方法。 The method for producing a cured film according to claim 12, further comprising an exposure step of exposing the film and a developing step of developing the film.
  14.  前記露光に用いられる露光光が波長405nmの光を含む、請求項13に記載の硬化膜の製造方法。 The method for producing a cured film according to claim 13, wherein the exposure light used for the exposure includes light having a wavelength of 405 nm.
  15.  前記露光がレーザーダイレクトイメージング法による露光である、請求項13又は14に記載の硬化膜の製造方法。 The method for producing a cured film according to claim 13 or 14, wherein the exposure is an exposure by a laser direct imaging method.
  16.  前記膜を50~450℃で加熱する加熱工程を含む、請求項12~15のいずれか1項に記載の硬化膜の製造方法。 The method for producing a cured film according to any one of claims 12 to 15, which comprises a heating step of heating the film at 50 to 450 ° C.
  17.  請求項10に記載の硬化膜又は請求項11に記載の積層体を含む、半導体デバイス。 A semiconductor device including the cured film according to claim 10 or the laminate according to claim 11.
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JPWO2022044998A1 (en) * 2020-08-25 2022-03-03
WO2022044999A1 (en) * 2020-08-25 2022-03-03 富士フイルム株式会社 Curable resin composition, cured article, laminated body, method for producing cured article, semiconductor device, polyimide precursor, and method for producing same
WO2022044998A1 (en) * 2020-08-25 2022-03-03 富士フイルム株式会社 Curable resin composition, cured object, layered product, method for producing cured object, semiconductor device, and polyimide precursor and production method therefor
JP7530430B2 (en) 2020-08-25 2024-08-07 富士フイルム株式会社 CURABLE RESIN COMPOSITION, CURED PRODUCT, LAMINATE, METHOD FOR PRODUCING CURED PRODUCT, SEMICONDUCTOR DEVICE, POLYIMIDE PRECURSOR AND METHOD FOR PRODUCING SAME
WO2023157911A1 (en) * 2022-02-21 2023-08-24 富士フイルム株式会社 Resin composition, cured product, multilayer body, method for producing cured product, method for producing multilayer body, method for producing semiconductor device, and semiconductor device

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