WO2013115069A1 - プリント配線板材料用樹脂組成物、並びにそれを用いたプリプレグ、樹脂シート、金属箔張積層板及びプリント配線板 - Google Patents
プリント配線板材料用樹脂組成物、並びにそれを用いたプリプレグ、樹脂シート、金属箔張積層板及びプリント配線板 Download PDFInfo
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- WO2013115069A1 WO2013115069A1 PCT/JP2013/051501 JP2013051501W WO2013115069A1 WO 2013115069 A1 WO2013115069 A1 WO 2013115069A1 JP 2013051501 W JP2013051501 W JP 2013051501W WO 2013115069 A1 WO2013115069 A1 WO 2013115069A1
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- WIPO (PCT)
- Prior art keywords
- resin composition
- compound
- formula
- epoxy compound
- cyanate ester
- Prior art date
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- -1 and prepreg Substances 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 title claims description 72
- 239000002184 metal Substances 0.000 title claims description 72
- 229920005989 resin Polymers 0.000 title claims description 50
- 239000011347 resin Substances 0.000 title claims description 50
- 150000001875 compounds Chemical class 0.000 claims abstract description 240
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- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 31
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims abstract description 30
- 238000007747 plating Methods 0.000 claims abstract description 30
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims abstract description 17
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- 239000011888 foil Substances 0.000 claims description 35
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 24
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- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 claims description 18
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 16
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 11
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 11
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- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 7
- 150000004056 anthraquinones Chemical class 0.000 claims description 7
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- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 claims description 2
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 2
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 claims description 2
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- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 11
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
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- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 0 CC(*)(*)C(*)(*)c(cc1)ccc1-c1ccc(C(C)(*)*)cc1 Chemical compound CC(*)(*)C(*)(*)c(cc1)ccc1-c1ccc(C(C)(*)*)cc1 0.000 description 6
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- ZNBNBTIDJSKEAM-UHFFFAOYSA-N 4-[7-hydroxy-2-[5-[5-[6-hydroxy-6-(hydroxymethyl)-3,5-dimethyloxan-2-yl]-3-methyloxolan-2-yl]-5-methyloxolan-2-yl]-2,8-dimethyl-1,10-dioxaspiro[4.5]decan-9-yl]-2-methyl-3-propanoyloxypentanoic acid Chemical compound C1C(O)C(C)C(C(C)C(OC(=O)CC)C(C)C(O)=O)OC11OC(C)(C2OC(C)(CC2)C2C(CC(O2)C2C(CC(C)C(O)(CO)O2)C)C)CC1 ZNBNBTIDJSKEAM-UHFFFAOYSA-N 0.000 description 1
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- GZVHEAJQGPRDLQ-UHFFFAOYSA-N 6-phenyl-1,3,5-triazine-2,4-diamine Chemical compound NC1=NC(N)=NC(C=2C=CC=CC=2)=N1 GZVHEAJQGPRDLQ-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
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- 239000004743 Polypropylene Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
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- 239000006096 absorbing agent Substances 0.000 description 1
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- 150000001298 alcohols Chemical class 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229940043430 calcium compound Drugs 0.000 description 1
- 150000001674 calcium compounds Chemical class 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229940125904 compound 1 Drugs 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007333 cyanation reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910000378 hydroxylammonium sulfate Inorganic materials 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 150000002460 imidazoles Chemical class 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 150000002681 magnesium compounds Chemical class 0.000 description 1
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- SGLXWMAOOWXVAM-UHFFFAOYSA-L manganese(2+);octanoate Chemical compound [Mn+2].CCCCCCCC([O-])=O.CCCCCCCC([O-])=O SGLXWMAOOWXVAM-UHFFFAOYSA-L 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005078 molybdenum compound Substances 0.000 description 1
- 150000002752 molybdenum compounds Chemical class 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- GEMHFKXPOCTAIP-UHFFFAOYSA-N n,n-dimethyl-n'-phenylcarbamimidoyl chloride Chemical compound CN(C)C(Cl)=NC1=CC=CC=C1 GEMHFKXPOCTAIP-UHFFFAOYSA-N 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- MGFYIUFZLHCRTH-UHFFFAOYSA-N nitrilotriacetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)=O MGFYIUFZLHCRTH-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000004843 novolac epoxy resin Substances 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical compound CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- AFEQENGXSMURHA-UHFFFAOYSA-N oxiran-2-ylmethanamine Chemical compound NCC1CO1 AFEQENGXSMURHA-UHFFFAOYSA-N 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000013034 phenoxy resin Substances 0.000 description 1
- 229920006287 phenoxy resin Polymers 0.000 description 1
- PARWUHTVGZSQPD-UHFFFAOYSA-N phenylsilane Chemical compound [SiH3]C1=CC=CC=C1 PARWUHTVGZSQPD-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- XFZRQAZGUOTJCS-UHFFFAOYSA-N phosphoric acid;1,3,5-triazine-2,4,6-triamine Chemical compound OP(O)(O)=O.NC1=NC(N)=NC(N)=N1 XFZRQAZGUOTJCS-UHFFFAOYSA-N 0.000 description 1
- 239000003504 photosensitizing agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006289 polycarbonate film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Chemical class 0.000 description 1
- 238000011417 postcuring Methods 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920005604 random copolymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
- 150000003333 secondary alcohols Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 150000003509 tertiary alcohols Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- XAEWLETZEZXLHR-UHFFFAOYSA-N zinc;dioxido(dioxo)molybdenum Chemical compound [Zn+2].[O-][Mo]([O-])(=O)=O XAEWLETZEZXLHR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0373—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement containing additives, e.g. fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/4007—Curing agents not provided for by the groups C08G59/42 - C08G59/66
- C08G59/4014—Nitrogen containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/24—Impregnating materials with prepolymers which can be polymerised in situ, e.g. manufacture of prepregs
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/05—Insulated conductive substrates, e.g. insulated metal substrate
- H05K1/056—Insulated conductive substrates, e.g. insulated metal substrate the metal substrate being covered by an organic insulating layer
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/09—Use of materials for the conductive, e.g. metallic pattern
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/115—Via connections; Lands around holes or via connections
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0313—Organic insulating material
- H05K1/0353—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement
- H05K1/0366—Organic insulating material consisting of two or more materials, e.g. two or more polymers, polymer + filler, + reinforcement reinforced, e.g. by fibres, fabrics
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/02—Fillers; Particles; Fibers; Reinforcement materials
- H05K2201/0203—Fillers and particles
- H05K2201/0206—Materials
- H05K2201/0209—Inorganic, non-metallic particles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31511—Of epoxy ether
- Y10T428/31529—Next to metal
Definitions
- the present invention relates to a resin composition useful as a material for an insulating layer of a printed wiring board, and a prepreg, a resin sheet, a metal foil-clad laminate and a printed wiring board using such a resin composition.
- wet processing with a swelling agent and an oxidizing agent such as an alkaline permanganate solution is used to remove smears that occur at that time.
- the desmear process which performs the neutralization process by a reducing agent is implemented through these.
- wet processing is used for the purpose of forming a relatively large physical anchor on the surface of the insulating layer and ensuring adhesion strength with the conductor layer formed thereon.
- the resin composition used as the material of the insulating layer needs to be a resin composition having high adhesion strength with the conductor layer even if the surface roughness of the insulating layer is small.
- the resin composition used as the material for the insulating layer is required to have a low thermal expansion and a high glass transition temperature. .
- Patent Documents 1 to 4 disclose, as a component of a resin composition serving as a material for an insulating layer, a rubber that decomposes, drops, or dissolves into an alkaline permanganate solution that is an oxidizing agent during desmear treatment. Techniques using components and / or fillers are described. These documents disclose that the rubber and / or filler is decomposed, dropped or dissolved during the desmear treatment, so that fine irregularities are generated on the surface of the insulating layer, and the conductor layer and the insulating layer exhibit high adhesion. However, the concept of high glass transition temperature is not described at all.
- Patent Document 5 discloses a resin composition containing a cyanate resin and / or a prepolymer thereof, an epoxy resin, a phenoxy resin, an imidazole compound, and a filler as a resin component of the insulating layer. With this resin composition, a high plated copper peel strength of the conductor layer formed by plating was achieved, but this was not satisfactory in terms of low roughness and low thermal expansion.
- the present invention has been made in view of the above problems, and its purpose is excellent in adhesion between an insulating layer and a conductor layer formed on the surface thereof when used as a material for an insulating layer of a printed wiring board.
- a resin composition that can form a rough surface with a low roughness on the surface of the insulating layer regardless of the roughening conditions, has a low coefficient of thermal expansion (linear expansion coefficient), a high glass transition temperature, and excellent moisture absorption heat resistance.
- the present inventors select a cyanate ester compound from a specific type, and an epoxy with respect to the total amount of the epoxy compound and the cyanate ester compound.
- a compound ratio within a specific range, when used as a material for an insulating layer of a printed wiring board, a roughened surface with a low roughness can be formed on the surface of the insulating layer regardless of the roughening conditions.
- Knowledge that a resin composition with excellent adhesion to the conductor layer plated on the surface, low coefficient of thermal expansion (linear expansion coefficient), high glass transition temperature, and excellent moisture absorption heat resistance can be obtained.
- the present invention is based on this finding.
- the gist of the present invention is a resin composition used as a material for the insulating layer of a printed wiring board including an insulating layer and a conductor layer formed by plating on the surface of the insulating layer, and an epoxy compound (A ), A cyanate ester compound (B) and an inorganic filler (C), the cyanate ester compound (B) being a naphthol aralkyl type cyanate ester compound, an aromatic hydrocarbon formaldehyde type cyanate ester compound, biphenyl aralkyl.
- the resin composition has a content of A) of 60 to 75% by mass.
- Another gist of the present invention resides in a prepreg including a base material and the above-described resin composition attached to the base material.
- another gist of the present invention resides in a resin sheet including an outer layer made of a metal foil or a metal film and the above-described resin composition layer laminated on the outer layer.
- another gist of the present invention resides in a metal foil-clad laminate including the prepreg described above and a metal foil laminated on one or both sides of the prepreg.
- Another gist of the present invention resides in a printed wiring board produced using the above-described prepreg, metal foil-clad laminate or resin sheet as a build-up material.
- Another gist of the present invention resides in a printed wiring board including an insulating layer and a conductor layer formed on the surface of the insulating layer, wherein the insulating layer includes the above-described resin composition. .
- the resin composition of the present invention exhibits at least one, preferably all of the following effects (1) to (5).
- the resin composition of the present invention is a resin composition used as a material for an insulating layer in a printed wiring board including an insulating layer and a conductor layer formed by plating on the surface of the insulating layer, and comprises an epoxy compound (A ), A cyanate ester compound (B) and an inorganic filler (C).
- the epoxy compound (A) is not limited as long as it has two or more epoxy groups in one molecule.
- Biphenyl aralkyl type epoxy compound epoxy group-containing biphenyl aralkyl resin
- Naphthalene type epoxy compounds epoxy group-containing compounds having a naphthalene skeleton: naphthalene bifunctional epoxy compounds
- -Bisnaphthalene type epoxy compound epoxy group-containing compound having a bisnaphthalene skeleton: naphthalene tetrafunctional type epoxy compound
- Anthraquinone type epoxy compounds epoxy group-containing compounds having an anthraquinone skeleton
- Naphthol aralkyl type epoxy compounds epoxy group-containing naphthol aralkyl resins
- Zylok type epoxy compound epoxy group-containing zyloc resin
- an epoxy compound having a structure obtained by epoxidizing a certain resin or compound is referred to as “ ⁇ epoxy compound” in the name of the resin or compound. May be expressed.
- the epoxy compound (A) from the viewpoint of adhesion between the insulating layer and the plated conductor layer, flame retardancy, and the like, ⁇ Biphenyl aralkyl type epoxy compounds, ⁇ Naphthalene type epoxy compounds, ⁇ Bisnaphthalene type epoxy compounds, ⁇ Anthraquinone type epoxy compounds, A naphthol aralkyl type epoxy compound, and a zylock type epoxy compound, It is preferable that it is 1 type, or 2 or more types selected from the group which consists of.
- n represents an integer of 1 or more.
- the upper limit of n is usually 10, preferably 7.
- naphthalene type epoxy compound a compound represented by the following formula (6) is preferable.
- anthraquinone type epoxy compound a compound represented by the following formula (9) is preferable.
- each R independently represents a hydrogen atom or a methyl group, and n represents an integer of 1 or more.
- each R independently represents a hydrogen atom or a methyl group, and among them, a hydrogen atom is preferable.
- n represents an integer of 1 or more. The upper limit value of n is usually 10, preferably 6.
- the epoxy compound (A) may be used alone or in combination of two or more in any combination and ratio.
- epoxy compound (A) off-the-shelf products having various structures are commercially available, and can be appropriately obtained and used. Moreover, you may manufacture an epoxy compound (A) using a well-known various manufacturing method. Examples of such a production method include a method of obtaining or synthesizing a hydroxyl group-containing compound having a desired skeleton, modifying the hydroxyl group by a known method, and epoxidizing (introducing an epoxy group).
- the cyanate ester compound (B) is a compound having a cyanate group (cyanate ester group), specifically, ⁇ Naphthol aralkyl type cyanate ester compound (cyanate group-containing naphthol aralkyl resin), ⁇ Aromatic hydrocarbon formaldehyde type cyanate ester compounds (cyanate group-containing aromatic hydrocarbon formaldehyde resin), ⁇ Biphenyl aralkyl type cyanate ester compound (cyanate group-containing biphenyl aralkyl resin), and novolak type cyanate ester compound (cyanate group-containing novolak resin) Selected from the group consisting of
- cyanate ester compounds (B) give excellent properties such as chemical resistance in the resin composition of the present invention, and even when the surface of the insulating layer is roughened due to the excellent chemical resistance. Since the replica shape of the copper foil mat surface can be maintained and a uniform roughened surface can be formed, it can be suitably used as a component of the resin composition of the present invention.
- a cyanate ester compound (B) having a structure obtained by cyanating (cyanate esterification) a certain resin or compound is referred to as the name of the resin or compound. It may be indicated with the description “-type cyanate ester compound”.
- Aromatic hydrocarbon formaldehyde type cyanate ester compounds (preferred examples include aromatic hydrocarbon formaldehyde resins obtained by polymerizing aromatic hydrocarbons such as benzene, toluene and xylene with formaldehyde, such as phenol and xylenol.
- a compound in which a hydroxyl group is cyanated), and a biphenylaralkyl-type cyanate compound, 1 type or 2 types or more selected from the group which consists of are especially preferable.
- each R independently represents a hydrogen atom or a methyl group, and among them, a hydrogen atom is preferable.
- n represents an integer of 1 or more. The upper limit value of n is usually 10, preferably 6.
- each R 1 independently represents a methylene group, a methyleneoxy group, a methyleneoxymethylene group, or an oxymethylene group.
- each R 2 independently represents a C1-3 alkyl group (preferably a methyl group), a hydroxyl group, or a hydroxymethylene group.
- T 1 represents a hydrogen atom, a hydroxyl group, or a hydroxymethylene group.
- each x independently represents an integer of 0 to 4, preferably 0 to 2.
- each y independently represents an integer of 0 to 3, preferably 0 to 2.
- m represents an integer of 0 or more.
- the upper limit of m is usually 50 or less, preferably 20 or less.
- n represents an integer of 1 or more, preferably an integer of 2 or more.
- the upper limit of n is usually 20 or less.
- the arrangement of each repeating unit is arbitrary. That is, the compound of formula (2) may be a random copolymer or a block copolymer. Further, two or more compounds of the formula (2) may be cross-linked and linked by the same group as R 1 .
- each x independently represents an integer of 0 to 4
- y and z each independently represent an integer of 0 to 3
- a represents an integer of 0 or 1
- m represents ,
- n 1 and n 2 each independently represents an integer of 1 or more.
- R 2 is a methyl group
- Examples of the structure or partial structure include, but are not limited to, compounds represented by the following formula (2 ′′).
- the mass average molecular weight of the aromatic hydrocarbon formaldehyde type cyanate compound is usually 250 to 5,000, preferably 300 to 3,000. In the present specification, the mass average molecular weight may be measured by any method, but is preferably measured by gel permeation chromatography (GPC).
- GPC gel permeation chromatography
- each R independently represents a hydrogen atom or a methyl group, and among them, a hydrogen atom is preferable.
- n represents an integer of 1 or more. The upper limit of n is usually 10, preferably 7.
- each R independently represents a hydrogen atom or a methyl group, and among them, a hydrogen atom is preferable.
- n represents an integer of 1 or more. The upper limit of n is usually 10, preferably 7.
- the cyanate ester compound (B) is preferably a compound of the formula (1) to (3), particularly preferably a compound of the formula (1) or (2).
- the use of the aromatic hydrocarbon formaldehyde type cyanate ester compound of the formula (2) is particularly preferable because the curability of the resin composition of the present invention can be further improved and a cured product having excellent flame resistance can be obtained.
- the cyanate ester compound (B) may be used alone or in combination of two or more in any combination and ratio. Moreover, it is also possible to use together 1 type, or 2 or more types of well-known cyanate ester compounds other than the above-mentioned cyanate ester compound (B).
- cyanate ester compound (B) off-the-shelf products with various structures are commercially available, and can be obtained and used as appropriate. Moreover, you may manufacture a cyanate ester compound (B) using a well-known various manufacturing method. Examples of such production methods include a method of obtaining or synthesizing a hydroxyl group-containing compound having a desired skeleton, and modifying the hydroxyl group by a known method to form cyanate. Examples of the technique for cyanating a hydroxyl group include the technique described in Ian Hamerton, "Chemistry and Technology of Cyanate Ester Resins," Blackie Academic & Professional.
- the aromatic hydrocarbon formaldehyde type cyanate ester compound of the formula (2) is, for example, a solvent capable of separating a hydroxyl group-containing aromatic hydrocarbon formaldehyde resin having a corresponding structure from water.
- a tertiary amine and a cyanogen halide are added and reacted at the same time, followed by washing with water and separation, and purification by precipitation using a secondary or tertiary alcohol or a poor hydrocarbon solvent from the resulting solution.
- a hydroxyl group-containing aromatic hydrocarbon formaldehyde resin under acidic conditions with a cyanogen halide and a tertiary amine in a two-phase solvent of water and an organic solvent can be produced by a method such as a reaction method (for example, see JP-A-2007-277102).
- the hydroxyl group-containing aromatic hydrocarbon formaldehyde resin used as the raw material of the aromatic hydrocarbon formaldehyde type cyanate ester compound of the formula (2) is obtained by polymerizing aromatic hydrocarbons such as benzene, toluene and xylene with formaldehyde.
- the obtained aromatic hydrocarbon formaldehyde resin can be obtained by a method of modifying with a hydroxyl group-containing aromatic hydrocarbon such as phenol or xylenol or a method of polymerizing a hydroxyl group-containing aromatic hydrocarbon such as phenol or xylenol with formaldehyde. it can.
- the former method modification of an aromatic hydrocarbon formaldehyde resin with a hydroxyl group-containing aromatic hydrocarbon
- an aromatic hydrocarbon formaldehyde resin eg, xylene formaldehyde resin
- a hydroxyl group-containing aromatic hydrocarbon eg, phenol, xylenol, etc.
- an acid catalyst any of inorganic acids such as sulfuric acid, hydrochloric acid and phosphoric acid, and organic acids such as paratoluenesulfonic acid and methanesulfonic acid may be used.
- the reaction temperature is usually 50 to 200 ° C. After the reaction, the acid catalyst may be neutralized with an alkali, and the target product may be extracted and recovered with an organic solvent.
- the content of the epoxy compound (A) is usually 60 to 75% by mass with respect to the total amount of the epoxy compound (A) and the cyanate ester compound (B). It is intended.
- the ratio is preferably 65 to 75% by mass, and more preferably 65 to 70% by mass. The higher the ratio of the epoxy compound in the resin composition, the better the adhesion between the insulating layer formed using the resin composition and the conductor layer formed by plating on the surface, but the insulating layer Since the glass transition temperature Tg tends to decrease and the heat resistance tends to deteriorate, it is extremely difficult to achieve both characteristics.
- the above-described specific cyanate ester compound (B) is used, and the ratio of the epoxy compound (A) is limited to the above-described limited range.
- the glass transition temperature Tg of the insulating layer can be maintained at a very high value (for example, 180 ° C. or higher) while significantly improving the adhesion between the insulating layer and the plated conductor layer.
- the resin composition of the present invention it is possible to obtain an unpredictable remarkable effect of achieving both excellent adhesion and high heat resistance at a high level.
- the inorganic filler (C) used in the resin composition of the present invention is not particularly limited, but examples include silica (for example, natural silica, fused silica, amorphous silica, hollow silica, etc.), aluminum compound (for example, boehmite, Aluminum hydroxide, alumina, etc.), magnesium compounds (eg, magnesium oxide, magnesium hydroxide, etc.), calcium compounds (eg, calcium carbonate, etc.), molybdenum compounds (eg, molybdenum oxide, zinc molybdate, etc.), talc (eg, natural talc, calcined) Talc, etc.), mica (mica), glass (eg, short fiber glass, spherical glass, fine powder glass (eg, E glass, T glass, D glass, etc.)) and the like. These inorganic fillers (C) may be used individually by 1 type, and may use 2 or more types together by arbitrary combinations and ratios.
- silica for example, natural silica,
- the inorganic filler (C) is preferably one or more selected from the group consisting of silica, aluminum hydroxide, boehmite, magnesium oxide, and magnesium hydroxide.
- the inorganic filler (C) is preferably silica, and particularly preferably fused silica.
- silica include SFP-130MC manufactured by Denki Kagaku Kogyo Co., Ltd., SC2050-MB, SC2500-SQ, SC5500-SQ manufactured by Admatechs Co., Ltd., and the like.
- the inorganic filler (C) it is also preferable to use magnesium hydroxide and / or magnesium oxide alone or in combination with other inorganic fillers such as silica.
- Magnesium hydroxide and magnesium oxide are eluted in the neutralizing solution in the desmear treatment of the insulating layer surface, and have the effect of forming a uniform roughened surface and improving the plating peel strength.
- magnesium hydroxide examples include “Echo Mug Z-10” and “Echo Mug PZ-1” manufactured by Tateho Chemical Co., Ltd., “Magsees N”, “Magsees S” manufactured by Kamishima Chemical Co., Ltd., “ “Magsees EP”, “Magsees EP2-A”, MGZ-1, MGZ-3, MGZ-6R manufactured by Sakai Chemical Industry Co., Ltd., “Kisuma 5”, “Kisuma 5A” manufactured by Kyowa Chemical Industry Co., Ltd., “ Kisma 5P "and the like.
- Specific examples of magnesium oxide include FNM-G manufactured by Tateho Chemical Industry Co., Ltd., SMO, SMO-0.1, SMO-S-0.5 manufactured by Sakai Chemical Industry Co., Ltd., and the like.
- the average particle diameter of the inorganic filler (C) is not limited, but is preferably 0.01 to 5.0 ⁇ m from the viewpoint of obtaining uniform surface roughness after desmear treatment, and preferably 0.1 to 2. 0 ⁇ m is more preferable.
- the “average particle diameter” of the inorganic filler (C) means the median diameter of the inorganic filler (C).
- the median diameter refers to the number or mass of particles on the larger particle size side and the number on the smaller particle size side when the particle size distribution of the powder is divided into two based on a certain particle size.
- the mass means a particle size that occupies 50% of the total powder.
- the average particle diameter (median diameter) of the inorganic filler (C) is measured by a wet laser diffraction / scattering method.
- the usage-amount of an inorganic filler (C) is not limited, From a viewpoint of obtaining high plating peel strength, reducing the thermal expansion of an insulating layer, the said epoxy compound (A) and cyanate ester compound
- the usage rate of the inorganic filler (C) is preferably 50 to 250% by mass, more preferably 70 to 200% by mass.
- these total amount satisfy
- the resin composition of the present invention is a bismaleimide from the viewpoint of improving the hygroscopic heat resistance and glass transition temperature of the insulating layer. (D) may be contained.
- the bismaleimide (D) is not limited as long as it is a compound having two or more maleimide groups. Specific examples thereof include bis (4-maleimidophenyl) methane, 2,2-bis ⁇ 4- (4- Maleimidophenoxy) -phenyl ⁇ propane, bis (3,5-dimethyl-4-maleimidophenyl) methane, bis (3-ethyl-5-methyl-4-maleimidophenyl) methane, bis (3,5-diethyl-4- Maleimidophenyl) methane and the like.
- these bismaleimide prepolymers for example, polyphenylmethanemaleimide
- these bismaleimides (D) may be used individually by 1 type, and may use 2 or more types together by arbitrary combinations and a ratio.
- bismaleimide (D) includes bis (3-ethyl-5-methyl-4-maleimidophenyl) methane, bis (3-ethyl-5-methyl-4). -Maleimidophenyl) methane is particularly preferred.
- the blending amount is not limited, but the insulating layer has a high glass transition temperature and good flame resistance while maintaining the adhesion between the insulating layer and the plated conductor layer.
- the ratio of bismaleimide (D) to the total amount of the epoxy compound (A) and the cyanate ester compound (B) is preferably 5 to 20% by mass, and 8 to 15%. It is more preferable to set it as the mass%.
- these total amount satisfy
- the resin composition of the present invention includes one or two other types. The above components may be contained.
- the resin composition of the present invention may contain a silane coupling agent for the purpose of improving moisture absorption heat resistance.
- a silane coupling agent if it is a silane coupling agent generally used for the surface treatment of an inorganic substance, it will not be limited.
- aminosilane-based silane coupling agents for example, ⁇ -aminopropyltriethoxysilane, N- ⁇ - (aminoethyl) - ⁇ -aminopropyltrimethoxysilane
- epoxysilane-based silane coupling agents for example, ⁇ -Glycidoxypropyltrimethoxysilane, etc.
- vinylsilane-based silane coupling agents eg, ⁇ -methacryloxypropyltrimethoxysilane
- cationic silane-based silane coupling agents eg, N- ⁇ - (N-vinylbenzyl) Aminoethyl) - ⁇ -aminopropyltrimethoxysilane hydrochloride
- phenylsilane-based silane coupling agents and the like.
- These silane coupling agents may be used alone or in combination of two or more in any combination and ratio.
- the amount of the silane coupling agent is not limited, but from the viewpoint of improving moisture absorption heat resistance, the ratio of the silane coupling agent to the inorganic filler (C) is 0.05. It is preferably ⁇ 5% by mass, more preferably 0.1-3% by mass. In addition, when using together 2 or more types of silane coupling agents, it is preferable that these total amount satisfy
- the resin composition of the present invention may contain a wetting and dispersing agent for the purpose of improving moldability.
- the wetting and dispersing agent is not limited as long as it is a wetting and dispersing agent generally used in paints and the like. Specific examples include Disperbyk-110, -111, -180, -161, BYK-W996, -W9010, and -W903 manufactured by Big Chemie Japan. One of these wetting and dispersing agents may be used alone, or two or more thereof may be used in any combination and ratio.
- the wetting dispersant When the wetting dispersant is used, its blending amount is not limited, but from the viewpoint of improving moldability, the ratio of the wetting dispersant to the inorganic filler (C) is 0.1 to 5 mass. %, And more preferably 0.5 to 3% by mass. In addition, when using 2 or more types of wet dispersing agents together, it is preferable that these total amount satisfy
- the resin composition of the present invention may contain a curing accelerator for the purpose of adjusting the curing rate.
- a hardening accelerator it is well-known as hardening accelerators, such as an epoxy compound and a cyanate ester compound, and if it is generally used, it will not specifically limit.
- organometallic salts containing metals such as copper, zinc, cobalt, nickel, manganese (for example, zinc octylate, cobalt naphthenate, nickel octylate, manganese octylate, etc.), imidazoles, and derivatives thereof (for example, 2 -Ethyl-4-methylimidazole, 1-benzyl-2-phenylimidazole, etc.), tertiary amines (eg triethylamine, tributylamine etc.) and the like.
- These hardening accelerators may be used individually by 1 type, and may use 2 or more types together by arbitrary combinations and a ratio.
- the blending amount is not limited, but from the viewpoint of obtaining a high glass transition temperature, the total amount of the epoxy compound (A) and the cyanate ester compound (B).
- the ratio of the curing accelerator is preferably 0.01 to 2% by mass, more preferably 0.1 to 1% by mass. In addition, when using 2 or more types of hardening accelerators together, it is preferable that these total amount satisfy
- the resin composition of the present invention may contain other various polymer compounds and / or flame retardant compounds as long as desired properties are not impaired.
- the polymer compound and the flame retardant compound are not limited as long as they are generally used.
- the polymer compound include various thermosetting resins and thermoplastic resins, oligomers thereof, and elastomers.
- flame retardant compounds include phosphorus-containing compounds (eg, phosphate esters, melamine phosphate, phosphorus-containing epoxy resins), nitrogen-containing compounds (eg, melamine, benzoguanamine, etc.), oxazine ring-containing compounds, silicone compounds, and the like. Can be mentioned.
- These polymer compounds and / or flame retardant compounds may be used alone or in combination of two or more in any combination and ratio.
- the resin composition of the present invention may contain various additives for various purposes within a range where the desired properties are not impaired.
- additives include UV absorbers, antioxidants, photopolymerization initiators, fluorescent brighteners, photosensitizers, dyes, pigments, thickeners, lubricants, antifoaming agents, dispersants, leveling agents, Examples include brighteners. These additives may be used individually by 1 type, and may use 2 or more types together by arbitrary combinations and a ratio.
- the resin composition of the present invention comprises the above-described components, that is, the epoxy compound (A), the cyanate ester compound (B) and the inorganic filler (C), and bismaleimide (D) and other components used as necessary. Prepared by mixing the ingredients. If necessary, a solution in which these components are dissolved in an organic solvent may be used. Such a solution of the resin composition of the present invention can be suitably used as a varnish for producing the prepreg and resin sheet of the present invention described later.
- the organic solvent is not limited as long as it can suitably dissolve or disperse the above-described components and does not impair the desired effect of the resin composition of the present invention.
- organic solvents examples include alcohols (methanol, ethanol, propanol etc.), ketones (eg acetone, methyl ethyl ketone, methyl isobutyl ketone etc.), amides (eg dimethylacetamide, dimethylformamide etc.), aromatic hydrocarbons (eg toluene) , Xylene, etc.).
- ketones eg acetone, methyl ethyl ketone, methyl isobutyl ketone etc.
- amides eg dimethylacetamide, dimethylformamide etc.
- aromatic hydrocarbons eg toluene
- Xylene Xylene, etc.
- the resin composition of the present invention When used as a material for an insulating layer of a printed wiring board, it has excellent adhesion between the insulating layer and the plated conductor layer even when the roughened surface of the insulating layer has a low roughness. As a result, a rough surface with low roughness can be formed on the surface of the insulating layer regardless of the roughening conditions. Furthermore, an insulating layer having a low coefficient of thermal expansion (linear expansion coefficient), a high glass transition temperature, and excellent moisture absorption heat resistance can be obtained. In addition, other suitable effects such as excellent chemical resistance can be exhibited. As described above, the resin composition of the present invention has various excellent characteristics and can particularly achieve both excellent adhesion and high heat resistance at a high level. As extremely useful.
- prepreg, resin sheet, metal foil-clad laminate and printed wiring board are all formed using the above-described resin composition of the present invention.
- the prepreg of the present invention is obtained by attaching the above-described resin composition of the present invention to a substrate.
- a base material the well-known base material generally used as a material of various printed wiring boards can be used. Examples include glass fibers (eg, E glass, D glass, S glass, NE glass, T glass, Q glass, etc.), inorganic fibers such as quartz (quartz), and organic fibers such as polyimide, polyamide, polyester, It can be appropriately selected depending on the intended use and performance. Examples of the shape include woven fabric, non-woven fabric, roving, chopped strand mat, and surfacing mat.
- glass fiber is preferable in terms of strength and water absorption
- liquid crystal polyester woven fabric is preferable in terms of electrical characteristics.
- the thickness of the substrate is not limited, but is preferably in the range of 0.01 to 0.3 mm, for example. From the viewpoint of moisture absorption and heat resistance, a glass woven fabric that has been surface-treated with a silane coupling agent such as epoxy silane treatment or aminosilane treatment is suitable. A treated woven fabric is preferred.
- the method for producing the prepreg of the present invention by combining the resin composition of the present invention with the above-mentioned substrate is not limited, but as an example, the resin composition of the present invention is dissolved or dispersed in an organic solvent.
- the solution or dispersion liquid (varnish) is impregnated or applied to the substrate, dried by heating (for example, heating for 1 to 60 minutes in a dryer at 100 to 200 ° C.) and / or under reduced pressure to remove the solvent.
- Examples of the method include semi-curing and attaching the resin composition of the present invention to a substrate.
- the adhesion amount of the resin composition to the substrate is preferably adjusted so that the ratio of the resin composition of the present invention to the whole prepreg is usually in the range of 15 to 95% by mass, preferably 20 to 90% by mass.
- the prepreg of the present invention can be used as a build-up material for printed wiring boards.
- the build-up means that a printed wiring board having a multilayer structure is produced by laminating prepregs or resin sheets and repeating the drilling process and the wiring formation for each layer.
- the prepreg of the present invention (the base material and the resin composition of the present invention attached thereto) constitutes an insulating layer. The printed wiring board will be described later.
- the resin sheet of the present invention is obtained by laminating the above-described layer made of the resin composition of the present invention on an outer layer made of a metal foil or a metal film.
- the metal foil or metal film used as the outer layer is not particularly limited, and examples thereof include a foil or film made of a metal such as copper or aluminum. Among these, a copper foil or a copper film is preferable, and an electrolytic copper foil, a rolled copper foil, a copper alloy film, or the like can be preferably used.
- the metal foil or metal film may be subjected to a known surface treatment such as nickel treatment or cobalt treatment.
- the thickness of the metal foil or metal film can be appropriately adjusted depending on the intended use, but is preferably in the range of 5 to 70 ⁇ m, for example.
- a method for producing the resin sheet of the present invention by forming a layer (resin composition layer) of the resin composition of the present invention on the outer layer of the above metal foil or metal film is not limited.
- a solution (varnish) in which the resin composition of the present invention is dissolved or dispersed in an organic solvent is applied (coated, impregnated, etc.) to the surface of the above metal foil or film, and heated and / or reduced in pressure.
- Examples thereof include a method of drying under and removing the solvent to solidify the resin composition of the present invention to form a resin composition layer.
- the drying conditions are not particularly limited, but drying is performed so that the content ratio of the organic solvent to the resin composition layer is usually 10 parts by mass or less, preferably 5 parts by mass or less.
- the conditions for achieving such drying vary depending on the amount of the organic solvent in the varnish. For example, in the case of a varnish containing 30 to 60 parts by mass of the organic solvent, the drying is performed for about 3 to 10 minutes under a heating condition of 50 to 150 ° C. You can do it.
- the thickness of the resin composition layer in the resin sheet of the present invention is not limited, but is usually the thickness of the outer layer (usually about 5 to 70 ⁇ m as described above), for example, a range of 10 to 100 ⁇ m is preferable.
- the resin sheet of the present invention can also be used as a build-up material for printed wiring boards.
- the layer made of the resin composition of the present invention constitutes an insulating layer. The printed wiring board will be described later.
- the metal foil-clad laminate of the present invention is obtained by laminating a metal foil on one side or both sides of the prepreg of the present invention described above.
- the prepreg of the present invention may be a single sheet or a laminate of two or more sheets.
- the method for producing the metal foil-clad laminate of the present invention is not limited.
- one or two or more of the prepregs of the present invention are laminated, and a metal foil is disposed on one or both sides thereof.
- Examples of the method include laminate molding under conditions of 180 to 220 ° C., heating time of 100 to 300 minutes, and surface pressure of 20 to 40 kgf / cm 2 (about 2.0 MPa to about 3.9 MPa).
- the metal foil is not particularly limited, but a metal foil such as copper or aluminum, for example, a copper foil is preferable.
- a metal foil such as copper or aluminum, for example, a copper foil is preferable.
- electrolytic copper foil, rolled copper foil, and the like can be suitably used.
- the metal foil may be subjected to a known surface treatment such as nickel treatment or cobalt treatment.
- the thickness of the metal foil can be appropriately adjusted within a range suitable as a material for the printed wiring board, but for example, a range of 2 to 35 ⁇ m is preferable.
- the matte surface of the metal foil is transferred to the surface of the insulating layer (the layer made of the prepreg of the present invention), and the conductor layer formed on the insulating layer is plated by the anchor effect of the irregularities transferred to the surface of the insulating layer.
- the surface roughness Rz is an index representing the roughness of the matte surface of the metal foil.
- the roughness curve of the surface to be measured is measured with a laser microscope, and five peaks that exceed the average line are arranged in descending order. Then, five valley bottoms that do not reach the average line are extracted in order from the lowest, and the average value of the absolute values of the extracted peak height and valley bottom height is calculated.
- the metal foil-clad laminate of the present invention can also be used as a build-up material for printed wiring boards.
- the prepreg of the present invention (the base material and the resin composition of the present invention attached thereto) constitutes an insulating layer. .
- the printed wiring board will be described later.
- the printed wiring board of this invention is a printed wiring board containing an insulating layer and the conductor layer formed in the surface of the said insulating layer, Comprising:
- the said insulating layer contains the resin composition of this invention.
- Such a printed wiring board is produced using the above-described prepreg, resin sheet or metal foil-clad laminate of the present invention as a build-up material. That is, by producing a printed wiring board using these as build-up materials, the prepreg of the present invention (the base material and the resin composition of the present invention attached thereto) or the resin composition of the resin sheet of the present invention.
- a physical layer (a layer made of the resin composition of the present invention) constitutes an insulating layer containing the resin composition of the present invention.
- the resin composition layer (insulating layer) of the resin sheet is surface-treated by a conventional method, and the wiring pattern (conductor layer) is plated by plating on the surface of the insulating layer.
- the layer (insulating layer) made of the prepreg of the present invention is surface-treated, By forming a wiring pattern (conductor layer) on the surface of the insulating layer by plating, the printed wiring board of the present invention can be obtained.
- the prepreg of the present invention When used as a build-up material, it is used after the form of the metal foil-clad laminate of the present invention is formed by the above procedure. Or when using as a material of a multilayer printed wiring board etc. as mentioned later, you may use it as it is. In any case, various other processes (for example, hole processing for forming via holes, through holes, etc.) may be added as necessary.
- the hole processing is performed to form via holes, through holes, and the like.
- the hole processing is performed by using any one of known methods such as NC drill, carbon dioxide laser, UV laser, YAG laser, plasma, or a combination of two or more if necessary.
- the surface treatment for the insulating layer is performed from the viewpoint of improving the adhesion between the insulating layer and the plated conductor layer, removing smear, and the like.
- the surface treatment there are a roughening treatment, a silane coupling treatment, and the like, but it is preferable to perform the roughening treatment from the viewpoint of improving the adhesion of plating.
- the roughening treatment also serves to remove smear generated by the drilling process. In this case, since the roughening state varies depending on the degree of curing of the resin composition, it is preferable to select optimum conditions for the later-described lamination molding conditions in combination with the subsequent roughening treatment conditions and plating conditions.
- the roughening treatment includes a swelling step, a surface roughening and smear dissolving step, and a neutralizing step.
- the swelling step is performed by swelling the surface insulating layer using a swelling agent.
- the swelling agent is not limited as long as the wettability of the surface insulating layer is improved and the surface insulating layer can be swollen to the extent that oxidative decomposition is promoted in the next surface roughening and smear dissolving step. . Examples include alkaline solutions and surfactant solutions.
- the surface roughening and smear dissolution steps are performed using an oxidizing agent. As an oxidizing agent, a permanganate solution etc.
- a potassium permanganate aqueous solution, a sodium permanganate aqueous solution, etc. are mentioned as a suitable specific example.
- Such oxidant treatment is called wet desmear, but in addition to the wet desmear, other known roughening treatments such as dry desmear by plasma treatment or UV treatment, mechanical polishing by buffing, sandblasting, etc. are carried out in an appropriate combination May be.
- the neutralization step the oxidizing agent used in the previous step is neutralized with a reducing agent.
- reducing agent examples include amine-based reducing agents, and preferred specific examples include acidic reducing agents such as hydroxylamine sulfate aqueous solution, ethylenediaminetetraacetic acid aqueous solution, and nitrilotriacetic acid aqueous solution.
- acidic reducing agents such as hydroxylamine sulfate aqueous solution, ethylenediaminetetraacetic acid aqueous solution, and nitrilotriacetic acid aqueous solution.
- the surface roughness of the insulating layer after the roughening treatment is preferably small.
- the Rz value is preferably 4.0 ⁇ m or less, more preferably 2.0 ⁇ m or less. Since the surface irregularities after the roughening treatment are determined according to the degree of curing of the resin composition, the conditions of the roughening treatment, etc., it is preferable to select the optimum conditions for obtaining the desired surface irregularities.
- the insulating layer containing the resin composition of the present invention is extremely suitable because it can ensure adhesion with the plated conductor layer even if the surface roughness is low.
- Examples of a method for forming a wiring pattern (conductor layer) by plating include a semi-additive method, a full additive method, and a subtractive method.
- the semi-additive method is preferable from the viewpoint of forming a fine wiring pattern.
- electrolytic plating is selectively performed using a plating resist (pattern plating), and then the plating resist And a method of forming a wiring pattern by etching an appropriate amount of the whole.
- a method of forming a pattern by a full additive method there is a method of forming a wiring pattern by performing pattern formation in advance using a plating resist on the surface of an insulating layer and selectively depositing electroless plating or the like.
- An example of a pattern forming method using the subtractive method is a method of forming a wiring pattern by forming a conductive layer on the surface of an insulating layer by plating and then selectively removing the conductive layer using an etching resist. It is done.
- the pattern formation by the semi-additive method is performed by combining electroless plating and electrolytic plating. In this case, it is preferable to perform drying after the electroless plating and after the electrolytic plating. Drying after electroless is preferably performed at 80 to 180 ° C. for 10 to 120 minutes, for example, and drying after electrolytic plating is preferably performed at 130 to 220 ° C. for 10 to 120 minutes, for example.
- the printed wiring board of the present invention can be a multilayer printed wiring board.
- metal foil for example, copper, aluminum, etc.
- an inner layer circuit is formed thereon, and the obtained circuit A blackening process is performed on the inner layer circuit board.
- the prepreg or resin sheet of the present invention is arranged on one or both sides of the inner layer circuit board or metal foil (for example, copper or aluminum) thus obtained, and further the metal foil (for example, copper or aluminum) or a release film.
- Laminate molding by repeating the operation of placing a film (with a release agent applied on the surface of a polyethylene film, polypropylene film, polycarbonate film, polyethylene terephthalate film, ethylene tetrafluoroethylene copolymer film, etc.) on the outside thereof.
- a film with a release agent applied on the surface of a polyethylene film, polypropylene film, polycarbonate film, polyethylene terephthalate film, ethylene tetrafluoroethylene copolymer film, etc.
- Lamination molding uses a technique generally used for lamination molding of ordinary laminates for printed wiring boards, such as a multistage press, a multistage vacuum press, a laminator, a vacuum laminator, an autoclave molding machine, etc., and the temperature is, for example, 100 to 300 C., pressure is, for example, 0.1 to 100 kgf / cm 2 (about 9.8 kPa to about 38 MPa), and heating time is appropriately selected within a range of, for example, 30 seconds to 5 hours. If necessary, post-curing may be performed at a temperature of 150 to 300 ° C. to adjust the degree of curing.
- a reactor equipped with a thermometer, a stirrer, a dropping funnel and a reflux condenser was previously cooled to 0 to 5 ° C. with a saline solution, to which 7.47 g (0.122 mol) of cyanogen chloride and 35% hydrochloric acid 9. 75 g (0.0935 mol), 76 ml of water, and 44 ml of methylene chloride were charged.
- the ⁇ -naphthol aralkyl resin (SN485, OH group equivalent: 214 g / eq.) Represented by the following formula (1a ′) is stirred with keeping the temperature in the reactor at ⁇ 5 to + 5 ° C. and the pH at 1 or less. Softening point: 86 ° C., Nippon Steel Chemical Co., Ltd. 20 g (0.0935 mol) and triethylamine 14.16 g (0.14 mol) dissolved in 92 ml of methylene chloride were added dropwise over 1 hour using a dropping funnel. After completion of the dropwise addition, 4.72 g (0.047 mol) of triethylamine was further added dropwise over 15 minutes. (In the formula, the average value of n is 3 to 4.)
- Synthesis Example 2 Synthesis of phenol-modified xylene formaldehyde cyanate compound (compound of formula (2a)) (In the formula, R 1 , T 1 , a, m, n 1, and n 2 have the same meaning as described in the above-described formula (2 ′).)
- Examples of the structure or partial structure of the phenol-modified xylene formaldehyde type cyanate compound include compounds represented by the following formula (2a ′), but are not limited thereto.
- the compound of the above formula (2a) could be dissolved in methyl ethyl ethyl ketone at 30% by mass or more at 25 ° C. Moreover, when the viscosity was measured using a rheometer AR2000EX manufactured by TA Instruments, the viscosity was 0.4 Pa ⁇ s at 100 ° C. The mass average molecular weight (Mw) of the compound of the above formula (2a) measured by GPC was 1050.
- the methylene chloride solution is dried with sodium sulfate, and the methylene chloride is distilled off by distillation, whereby the cyanate ester compound of the 2,6-xylenol-modified xylene formaldehyde resin represented by the above formula (2b) (2,6- 240 g of a xylenol-modified xylene formaldehyde compound) was obtained as a yellow-red viscous material.
- the compound of the above formula (2b) was capable of dissolving 30% by mass or more at 25 ° C. in methyl ethyl ethyl ketone. Moreover, when the viscosity was measured using a rheometer AR2000EX manufactured by TA Instruments, the viscosity was 0.3 Pa ⁇ s at 100 ° C. The mass average molecular weight (Mw) of the compound of the above formula (2b) measured by GPC was 650.
- Non-volatile content 50% by mass
- the epoxy compound (A) is a biphenylaralkyl type epoxy compound (NC-3000-FH) represented by the formula (5) , Epoxy equivalent: 320 g / eq., Manufactured by Nippon Kayaku Co., Ltd.
- MEK solution non-volatile content 75% by mass
- MEK of zinc octylate as a hardening accelerator 24 parts by mass (non-volatile content: 0.24 parts by mass) of a solution (non-volatile content: 1% by mass) was dissolved or dispersed in MEK.
- silica SFP-130MC, manufactured by Denki Kagaku Kogyo Co., Ltd., average particle size 0.6 ⁇ m
- inorganic filler (C) 100 parts was added as an inorganic filler (C), and the mixture was stirred for 30 minutes using a high-speed stirrer.
- This varnish was further diluted with MEK, impregnated on a 0.1 mm thick E glass woven fabric, and dried by heating at 160 ° C. for 4 minutes to obtain a prepreg having a resin composition content of 50 mass%.
- 1, 4 or 8 of the obtained prepregs were stacked, and a mat surface of 12 ⁇ m thick electrolytic copper foil (F1-WS, manufactured by Furukawa Electric Co., Ltd.) was placed on the prepreg side, and the pressure was 30 kgf / cm 2 ( Approximately 2.9 MPa), laminated at 120 ° C. for 120 minutes, and copper-clad laminates with insulation layer thicknesses of 0.1 mm, 0.4 mm, and 0.8 mm (one prepreg, four, and eight respectively) )
- Example 2 The amount of the ⁇ -naphthol aralkyl cyanate ester compound MEK solution (nonvolatile content 50 mass%), which is the cyanate ester compound (B), was changed to 70 mass parts (nonvolatile content 35 mass parts), and an epoxy compound ( A) Varnish in the same manner as in Example 1 except that the amount of the MEK solution (nonvolatile content 75% by mass) of the biphenylaralkyl epoxy compound A) was changed to 86.7 parts by mass (nonvolatile content 65 parts by mass). (Solution of resin composition) was prepared to obtain a copper clad laminate (metal foil clad laminate).
- Example 3 The amount of the ⁇ -naphthol aralkyl cyanate ester compound MEK solution (non-volatile content 50% by mass) used as the cyanate ester compound (B) was changed to 80 parts by mass (non-volatile equivalent 40 parts by mass), and an epoxy compound ( A varnish (resin) in the same manner as in Example 1 except that the amount of the MEK solution (nonvolatile content: 75% by mass) of the biphenylaralkyl epoxy compound as A) was changed to 80 parts by mass (nonvolatile content: 60 parts by mass).
- a composition solution) was prepared to obtain a copper clad laminate (metal foil clad laminate).
- Example 4 The amount of the ⁇ -naphthol aralkyl cyanate ester compound MEK solution (nonvolatile content 50 mass%), which is the cyanate ester compound (B), was changed to 70 mass parts (nonvolatile content 35 mass parts), and an epoxy compound ( The amount of use of the MEK solution (nonvolatile content 75% by mass) of the biphenyl aralkyl type epoxy compound which is A) is changed to 66.7 parts by mass (50 parts by mass in terms of nonvolatile content), and further as the second epoxy compound (A) A varnish was prepared in the same manner as in Example 1 except that 15 parts by mass of a naphthalene tetrafunctional epoxy compound represented by formula (7) (HP4710, epoxy equivalent 240 g / eq., Manufactured by DIC Corporation) was added to the varnish. (Solution of resin composition) was prepared to obtain a copper clad laminate (metal foil clad laminate).
- Example 5 As the second epoxy compound (A), instead of 15 parts by mass of the naphthalene tetrafunctional epoxy compound, a naphthalene bifunctional epoxy compound represented by the formula (6) (HP4032D, epoxy equivalent 140 g / eq., DIC Corporation) )) Except for using 15 parts by mass, a varnish (resin composition solution) was prepared in the same manner as in Example 4 to obtain a copper-clad laminate (metal foil-clad laminate).
- a varnish resin composition solution
- Example 6 As the second epoxy compound (A), instead of 15 parts by mass of the naphthalene tetrafunctional epoxy compound, an anthraquinone type epoxy compound represented by the formula (9) (YX8800, epoxy equivalent 180 g / eq., Mitsubishi Chemical Corporation) (Product made) Except having used 15 mass parts, it carried out similarly to Example 4, and prepared the varnish (solution of a resin composition), and obtained the copper clad laminated board (metal foil clad laminated board).
- an anthraquinone type epoxy compound represented by the formula (9) YX8800, epoxy equivalent 180 g / eq., Mitsubishi Chemical Corporation
- Example 7 As a cyanate ester compound (B), a novolak cyanate ester compound (PT-30, manufactured by Ronza) 35 in which R in formula (4) is H instead of the MEK solution of ⁇ -naphthol aralkyl cyanate ester compound.
- a varnish (resin composition solution) was prepared in the same manner as in Example 2 except that the parts by mass were used to obtain a copper-clad laminate (metal foil-clad laminate).
- Example 8 As the epoxy compound (A), a biphenylaralkyl cyanate ester in which R in formula (3) is H and the average value of n is 3 to 4 instead of the MEK solution of ⁇ -naphthol aralkyl cyanate ester compound A varnish (resin composition solution) was prepared in the same manner as in Example 2 except that 35 parts by mass of the compound (BA-CN, manufactured by Mitsubishi Gas Chemical Co., Ltd.) was used, and a copper-clad laminate (metal foil-clad laminate) Got.
- Example 9 As the cyanate ester compound (B), 35 parts by mass of the cyanate ester compound of the xylene formaldehyde resin of the formula (2a) obtained in Synthesis Example 2 was used instead of the MEK solution of ⁇ -naphthol aralkyl cyanate ester compound. A varnish (resin composition solution) was prepared in the same manner as in Example 2 except that a copper-clad laminate (metal foil-clad laminate) was obtained.
- Example 10 The amount of the MEK solution (non-volatile content: 50% by mass) of the ⁇ -naphthol aralkyl-type cyanate ester compound which is the cyanate ester compound (B) was changed to 49 parts by mass (24.5 parts by mass in terms of non-volatile content), and As bismaleimide (D), bis (3-ethyl-5-methyl-4-maleimidophenyl) methane (BMI-70, produced by KAI Kasei Co., Ltd.) MEK solution (non-volatile content 50% by mass) 21 parts by mass A varnish (resin composition solution) was prepared in the same manner as in Example 2 except that (non-volatile content 10.5 parts by mass) was added to the varnish to obtain a copper-clad laminate (metal foil-clad laminate). It was.
- Example 11 As bismaleimide (D), instead of bis (3-ethyl-5-methyl-4-maleimidophenyl) methane (BMI-70), polyphenylmethane maleimide (BMI-2300, manufactured by Daiwa Kasei Kogyo Co., Ltd.) A varnish (resin composition solution) was prepared in the same manner as in Example 10 except that it was used to obtain a copper clad laminate (metal foil clad laminate).
- BMI-70 bis (3-ethyl-5-methyl-4-maleimidophenyl) methane
- BMI-2300 polyphenylmethane maleimide
- Example 12 As Example 2 except that 50 parts by mass of magnesium hydroxide (average particle size 2.0 ⁇ m) (MGZ-6R, Sakai Chemical Industry Co., Ltd.) was further added to the varnish as the second inorganic filler (C). Similarly, a varnish (resin composition solution) was prepared to obtain a copper clad laminate (metal foil clad laminate).
- magnesium hydroxide average particle size 2.0 ⁇ m
- MZ-6R Sakai Chemical Industry Co., Ltd.
- Example 13 As the second inorganic filler (C), magnesium oxide (average particle size 0.4 ⁇ m) (SMO-0.4, manufactured by Sakai Chemical Industry Co., Ltd.) was used in place of magnesium hydroxide. Prepared varnish (resin composition solution) in the same manner as in Example 12 to obtain a copper clad laminate (metal foil clad laminate).
- SMO-0.4 average particle size 0.4 ⁇ m
- Example 14 As in Example 12, except that 50 parts by mass of boehmite silica (AOH-60, average particle size 0.9 ⁇ m, manufactured by Nabaltec) was used as the second inorganic filler (C) instead of magnesium hydroxide. A varnish (resin composition solution) was prepared to obtain a copper clad laminate (metal foil clad laminate).
- a varnish resin composition solution
- Comparative example 1 Changed the amount of MEK solution (non-volatile content: 50% by mass) of the ⁇ -naphthol aralkyl-type cyanate ester compound of formula (1) that is the cyanate ester compound (B) to 40 parts by mass (20 parts by mass in terms of non-volatile content).
- the amount of the MEK solution (nonvolatile content 75% by mass) of the biphenyl aralkyl type epoxy compound of the formula (5) which is the epoxy compound (A) was changed to 106.7 parts by mass (80 parts by mass in terms of nonvolatile content).
- Prepared varnish (resin composition solution) in the same manner as in Example 1 to obtain a copper clad laminate (metal foil clad laminate).
- Comparative example 2 The amount of the MEK solution (non-volatile content 50 mass%) of the ⁇ -naphthol aralkyl cyanate ester compound of the formula (1) which is the cyanate ester compound (B) is 86.8 parts by mass (43.4 mass in terms of non-volatile content).
- Comparative Example 3 The ⁇ -naphthol aralkyl type cyanate ester compound of the formula (1) which is the cyanate ester compound (B) is not used, but instead a naphthol aralkyl type phenol resin (SN495V2 (SN-OH), phenol equivalent 236 g / eq.,
- the biphenyl aralkyl type epoxy of the formula (5) which is an epoxy compound (A) using 70 parts by mass (35 parts by mass of nonvolatile content) of MEK solution (50% by mass of nonvolatile content) manufactured by Nippon Steel Chemical Co., Ltd.
- the amount of the compound used in the MEK solution was changed to 50.7 parts by mass (50 parts by mass in terms of nonvolatile content), and bis (3-ethyl-5-methyl-4) as bismaleimide (D) was changed.
- -Compare except that the amount of MEK solution of maleimidophenyl) methane (non-volatile content 50% by mass) was changed to 30 parts by mass (non-volatile content 15 parts by mass) 2 and in the same manner to prepare a varnish (a solution of the resin composition), to obtain a copper-clad laminate (metal foil-clad laminate).
- Comparative example 4 The MEK solution of the biphenylaralkyl type epoxy compound of the formula (5) which is the epoxy compound (A) (nonvolatile) without using bis (3-ethyl-5-methyl-4-maleimidophenyl) methane which is the bismaleimide (D)
- a varnish (resin composition solution) was prepared in the same manner as in Comparative Example 3 except that the amount used was 75. 7% by mass), and was changed to 86.7 parts by mass (65 parts by mass in terms of non-volatile content).
- a plate metal foil-clad laminate
- Adhesive strength of plated copper Using the circuit wiring board sample having an insulating layer thickness of 0.4 mm produced by the above procedure, the adhesive strength of the plated copper was measured three times according to JIS C6481, and the average value was obtained. About the sample swollen by the drying after electrolytic copper plating, it evaluated using the part which is not swollen. The results are shown in Tables 1-1 to 1-3.
- the surface roughness of Examples 1 to 15 having an insulating layer formed using the resin composition of the present invention is smaller than that of the comparative example, and the plating peel strength and glass It can be seen that the transition temperature is high and the moisture absorption heat resistance is also excellent.
- the resin composition of the present invention when used as a material for an insulating layer of a printed wiring board, has various effects such as excellent adhesion between the insulating layer and the plated conductor layer and excellent heat resistance. Therefore, it is extremely useful as a material for an insulating layer of a printed wiring board.
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Abstract
Description
(1)絶縁層とその表面にめっき形成される導体層との密着性に優れる。
(2)絶縁層表面に低粗度な粗化面を形成できる。
(3)熱膨張率(線膨張係数)が低い。
(4)ガラス転移温度が高い。
(5)吸湿耐熱性に優れる。
本発明の樹脂組成物は、絶縁層と、絶縁層の表面にめっきにより形成される導体層とを含むプリント配線板において、絶縁層の材料として用いられる樹脂組成物であって、エポキシ化合物(A)、シアン酸エステル化合物(B)及び無機充填材(C)を含む。
本発明の樹脂組成物において、エポキシ化合物(A)は、1分子中に2以上のエポキシ基を有するものであれば限定されないが、例としては、
・ビフェニルアラルキル型エポキシ化合物(エポキシ基含有ビフェニルアラルキル樹脂)、
・ナフタレン型エポキシ化合物(ナフタレン骨格を有するエポキシ基含有化合物:ナフタレン2官能型エポキシ化合物)、
・ビスナフタレン型エポキシ化合物(ビスナフタレン骨格を有するエポキシ基含有化合物:ナフタレン4官能型エポキシ化合物)、
・アントラキノン型エポキシ化合物(アントラキノン骨格を有するエポキシ基含有化合物)、
・ナフトールアラルキル型エポキシ化合物(エポキシ基含有ナフトールアラルキル樹脂)、
・ザイロック型エポキシ化合物(エポキシ基含有ザイロック樹脂)、
・ビスフェノールA型エポキシ樹脂、
・ビスフェノールF型エポキ樹脂、
・ビスフェノールAノボラック型エポキシ樹脂、
・3官能フェノール型エポキシ化合物(3官能フェノール骨格を有するエポキシ基含有化合物)、
・4官能フェノール型エポキシ化合物(4官能フェノール骨格を有するエポキシ基含有化合物)、
・ビフェニル型エポキシ樹脂(ビフェニル骨格を有するエポキシ基含有化合物)、
・アラルキルノボラック型エポキシ樹脂、
・脂環式エポキシ樹脂、
・ポリオール型エポキシ樹脂、
・グリシジルアミン、グリシジルエステル、ブタジエン等の二重結合含有化合物の二重結合をエポキシ化した化合物、及び、
・水酸基含有シリコーン樹脂類とエピクロルヒドリンとの反応により得られる化合物、
等が挙げられる。
・ビフェニルアラルキル型エポキシ化合物、
・ナフタレン型エポキシ化合物、
・ビスナフタレン型エポキシ化合物、
・アントラキノン型エポキシ化合物、
・ナフトールアラルキル型エポキシ化合物、及び
・ザイロック型エポキシ化合物、
からなる群から選択される1種又は2種以上であることが好ましい。
式中、nは1以上の整数を示す。nの上限値は、通常は10、好ましくは6である。
本発明の樹脂組成物において、シアン酸エステル化合物(B)は、シアナト基(シアン酸エステル基)を有する化合物であり、具体的には、
・ナフトールアラルキル型シアン酸エステル化合物(シアナト基含有ナフトールアラルキル樹脂)、
・芳香族炭化水素ホルムアルデヒド型シアン酸エステル化合物(シアナト基含有芳香族炭化水素ホルムアルデヒド樹脂)、
・ビフェニルアラルキル型シアン酸エステル化合物(シアナト基含有ビフェニルアラルキル樹脂)、及び
・ノボラック型シアン酸エステル化合物(シアナト基含有ノボラック樹脂)
からなる群から選択される。
なお、上記例示に記すように、本明細書では、ある樹脂又は化合物をシアナト化(シアン酸エステル化)して得られる構造を有するシアン酸エステル化合物(B)を、その樹脂又は化合物の名称に「~型シアン酸エステル化合物」との記載を付して表す場合がある。
・ナフトールアラルキル型シアン酸エステル化合物、
・芳香族炭化水素ホルムアルデヒド型シアン酸エステル化合物(好ましい例としては、ベンゼン、トルエン、キシレン等の芳香族炭化水素をホルムアルデヒドと重合して得られた芳香族炭化水素ホルムアルデヒド樹脂を、フェノール、キシレノール等の水酸基含有芳香族炭化水素で変性し、更に当該水酸基をシアナト化した化合物や、フェノール、キシレノール等の水酸基含有芳香族炭化水素をホルムアルデヒドと重合して得られた水酸基含有芳香族炭化水素ホルムアルデヒド樹脂の当該水酸基をシアナト化した化合物等)、及び
・ビフェニルアラルキル型シアン酸エステル化合物、
からなる群から選択される1種又は2種以上が特に好ましい。
式中、nは1以上の整数を示す。nの上限値は、通常は10、好ましくは6である。
式中、R2は、各々独立に、C1~3アルキル基(好ましくはメチル基)、水酸基、又はヒドロキシメチレン基を表す。
式中、T1は、水素原子、水酸基、又はヒドロキシメチレン基を表す。
式中、xは、各々独立に、0~4の整数を表し、好ましくは0~2である。
式中、yは、各々独立に、0~3の整数を表し、好ましくは0~2である。
式中、mは、0以上の整数を表す。mの上限値は、通常は50以下、好ましくは20以下である。
式中、nは、1以上の整数を表し、好ましくは2以上の整数を表す。nの上限値は、通常は20以下である。
式中、各繰り返し単位の配列は任意である。即ち、式(2)の化合物は、ランダム共重合体でもよく、ブロック共重合体でもよい。また、式(2)の化合物が2以上、R1と同様の基により架橋・連結されていてもよい。
式中、xは、各々独立して、0~4の整数を表し、y及びzは、各々独立して、0~3の整数を表し、aは、0又は1の整数を表し、mは、0以上の整数を表し、n1及びn2は、各々独立して、1以上の整数を表す。
式中、nは1以上の整数を示す。nの上限値は、通常は10、好ましくは7である。
式中、nは1以上の整数を示す。nの上限値は、通常は10、好ましくは7である。
また、上述のシアン酸エステル化合物(B)以外の公知のシアン酸エステル化合物を1種又は2種以上併用することも可能である。
本発明の樹脂組成物は、エポキシ化合物(A)及びシアン酸エステル化合物(B)の合計量に対するエポキシ化合物(A)の含有率が、通常60~75質量%であることを、その特徴の一つとするものである。上記比率は、好ましくは65~75質量%であり、特に65~70質量%がより好ましい。該して、樹脂組成物におけるエポキシ化合物の比率が高いほど、樹脂組成物を用いて形成された絶縁層とその表面にめっきで形成された導体層との密着性は向上するものの、絶縁層のガラス転移温度Tgが低下して耐熱性が悪化する傾向があるため、両者の特性を両立させるのは極めて困難である。しかし、エポキシ化合物(A)に加えて上述の特定のシアン酸エステル化合物(B)を使用すると共に、エポキシ化合物(A)の比率を上述の限られた範囲内に制限することで、後述する実施例に示すように、絶縁層とめっき導体層との密着性を顕著に向上させつつ、絶縁層のガラス転移温度Tgも極めて高い値(例えば180℃以上)に維持することができる。かくして、本発明の樹脂組成物によれば、優れた密着性と高耐熱性とを高い水準で両立させるという、予測し得ない顕著な効果を得ることが可能となる。なお、2種以上のエポキシ化合物(A)及び/又は2種以上のシアン酸エステル化合物(B)を併用する場合には、これらの合計量が上記比率を満たすことが好ましい。
本発明の樹脂組成物に使用される無機充填材(C)は、特に制限されないが、例としては、シリカ(例えば天然シリカ、溶融シリカ、アモルファスシリカ、中空シリカ等)、アルミニウム化合物(例えばベーマイト、水酸化アルミニウム、アルミナ等)、マグネシウム化合物(例えば酸化マグネシウム、水酸化マグネシウム等)、カルシウム化合物(例えば炭酸カルシウム等)、モリブデン化合物(例えば酸化モリブデン、モリブデン酸亜鉛等)、タルク(例えば天然タルク、焼成タルク等)、マイカ(雲母)、ガラス(例えば短繊維状ガラス、球状ガラス、微粉末ガラス(例えばEガラス、Tガラス、Dガラス等)等)などが挙げられる。これらの無機充填材(C)は、1種を単独で使用してもよく、2種以上を任意の組み合わせ及び比率で併用してもよい。
本発明の樹脂組成物は、エポキシ化合物(A)、シアン酸エステル化合物(B)及び無機充填材(C)に加えて、絶縁層の吸湿耐熱性及びガラス転移温度を向上させる観点から、ビスマレイミド(D)を含有していてもよい。
本発明の樹脂組成物は、エポキシ化合物(A)、シアン酸エステル化合物(B)及び無機充填材(C)、並びに任意で使用されるビスマレイミド(D)の他に、その他の1又は2種以上の成分を含有していてもよい。
本発明の樹脂組成物は、上述の成分、即ちエポキシ化合物(A)、シアン酸エステル化合物(B)及び無機充填材(C)、並びに必要に応じて使用されるビスマレイミド(D)及びその他の成分を混合することにより調製される。必要に応じて、これらの成分を有機溶剤に溶解させた溶液の形態としてもよい。斯かる本発明の樹脂組成物の溶液は、後述する本発明のプリプレグ及び樹脂シートを作製する際のワニスとして、好適に使用することができる。有機溶剤としては、上述の成分を各々好適に溶解又は分散させることができ、且つ、本発明の樹脂組成物の所期の効果を損なわないものであれば限定されない。具体例としては、アルコール類(メタノール、エタノール、プロパノール等)、ケトン類(例えばアセトン、メチルエチルケトン、メチルイソブチルケトン等)、アミド類(例えばジメチルアセトアミド、ジメチルホルムアミド等)、芳香族炭化水素類(例えばトルエン、キシレン等)等が挙げられる。これらの有機溶剤は、1種を単独で使用してもよく、2種以上を任意の組み合わせ及び比率で併用してもよい。
本発明のプリプレグ、樹脂シート、金属箔張積層板及びプリント配線板は、何れも上述した本発明の樹脂組成物を用いて形成される。
本発明のプリプレグは、上述した本発明の樹脂組成物が、基材に添着されたものである。基材としては、各種プリント配線板の材料として一般に用いられる公知の基材を使用することができる。例としては、ガラス繊維(例えばEガラス、Dガラス、Sガラス、NEガラス、Tガラス、Qガラス等)、石英(クオーツ)等の無機繊維、ポリイミド、ポリアミド、ポリエステル等の有機繊維が挙げられ、目的とする用途や性能により適宜選択できる。形状としては、織布、不織布、ロービング、チョップドストランドマット、サーフェシングマット等が挙げられる。これらの中でも、強度や吸水性の面からは、ガラス繊維が好ましく、電気特性の面からは、液晶ポリエステル織布が好ましい。基材の厚みは限定されないが、例えば0.01~0.3mmの範囲が好ましい。吸湿耐熱性の面からは、エポキシシラン処理、アミノシラン処理等のシランカップリング剤などで表面処理を施したガラス織布が好適であり、寸法安定性の面からは、超開繊処理や目詰め処理を施した織布が好適である。
本発明の樹脂シートは、金属箔又は金属フィルムからなる外層上に、上述した本発明の樹脂組成物からなる層が積層されたものである。
本発明の金属箔張積層板は、上述した本発明のプリプレグの片面又は両面に金属箔が積層されたものである。本発明のプリプレグは一枚でもよく、二枚以上を積層して用いてもよい。
本発明のプリント配線板は、絶縁層と、前記絶縁層の表面に形成された導体層とを含むプリント配線板であって、前記絶縁層が本発明の樹脂組成物を含むものである。
斯かるプリント配線板は、上述の本発明のプリプレグ、樹脂シート又は金属箔張積層板をビルドアップ材料として用いて作製される。すなわち、これらをビルドアップ材料として用いてプリント配線板を作製することにより、本発明のプリプレグ(基材及びこれに添着された本発明の樹脂組成物)、又は、本発明の樹脂シートの樹脂組成物層(本発明の樹脂組成物からなる層)が、本発明の樹脂組成物を含む絶縁層を構成することになる。
本発明の金属箔張積層板をビルドアップ材料として用いる場合は、常法により、金属箔張積層板の金属箔をエッチングした後、本発明のプリプレグからなる層(絶縁層)を表面処理し、絶縁層表面にめっきにより配線パターン(導体層)を形成することにより、本発明のプリント配線板が得られる。
本発明のプリプレグをビルドアップ材料として用いる場合は、上記手順により本発明の金属箔張積層板の形態としてから使用する。或いは、後述のように多層プリント配線板の材料として用いる場合等は、そのままの形態で使用してもよい。
なお、何れの場合も、必要に応じてその他の各種の工程(例えば、ビアホール、スルーホール等を形成する穴加工処理等)を加えてもよい。
穴加工処理は、ビアホール、スルーホール等の形成のために実施される。穴加工処理は、NCドリル、炭酸ガスレーザー、UVレーザー、YAGレーザー、プラズマ等の公知の方法のうち何れか1種を用い、或いは必要により2種以上を組み合わせて行う。
膨潤工程は、膨潤剤を用いて表面絶縁層を膨潤させることにより行う。膨潤剤としては、表面絶縁層の濡れ性が向上し、次の表面粗化及びスミア溶解工程において酸化分解が促進される程度にまで表面絶縁層を膨潤させることができるものであれば、制限されない。例としては、アルカリ溶液、界面活性剤溶液等が挙げられる。
表面粗化及びスミア溶解工程は、酸化剤を用いて行う。酸化剤としては、例えば過マンガン酸塩溶液等が挙げられ、好適な具体例としては、過マンガン酸カリウム水溶液、過マンガン酸ナトリウム水溶液等が挙げられる。斯かる酸化剤処理はウェットデスミアと呼ばれるが、当該ウェットデスミアに加えて、プラズマ処理やUV処理によるドライデスミア、バフ等による機械研磨、サンドブラスト等の他の公知の粗化処理を、適宜組み合わせて実施してもよい。
中和工程は、前工程で使用した酸化剤を還元剤で中和するものである。還元剤としては、アミン系還元剤が挙げられ、好適な具体例としては、ヒドロキシルアミン硫酸塩水溶液、エチレンジアミン四酢酸水溶液、ニトリロ三酢酸水溶液等の酸性還元剤が挙げられる。
セミアディティブ法でパターン形成する手法の例としては、絶縁層表面に無電解メッキ等により薄い導体層を形成した後、メッキレジストを用いて選択的に電解メッキを施し(パターンメッキ)、その後メッキレジストを剥離し、全体を適量エッチングして配線パターン形成する手法が挙げられる。
フルアディティブ法でパターン形成する手法の例としては、絶縁層表面にメッキレジストを用いて予めパターン形成を行い、選択的に無電解メッキ等を付着させることにより配線パターンを形成する手法が挙げられる。
サブトラクティブ法でパターン形成する手法の例としては、絶縁層表面にメッキにより導体層を形成した後、エッチングレジストを用いて選択的に導体層を除去することにより、配線パターンを形成する手法が挙げられる。
フェノール変性キシレンホルムアルデヒド型シアン酸エステル化合物の構造又は部分構造の例として、以下の式(2a’)で表される化合物が挙げられるが、それらに限定されるものではない。
フェノール800g(8.5mol)及び触媒のPTSA(パラトルエンスルホン酸)0.43gを仕込み撹拌昇温し、液温130℃にてキシレンホルムアルデヒド樹脂(ニカノールG、フドー製)670gを1時間かけて滴下した。滴下中、還流温度は150℃から105℃に低下した。滴下後1時間で反応を完結させた。反応後、脱フェノールするため水蒸気蒸留を170℃で2.5時間実施した。その後冷却しながら徐々にメチルイソブチルケトン1700gを添加し希釈した。希釈液を70~80℃の温水850gで3回繰り返し洗浄した。
上記方法で得られた式(2a’’)のフェノール変性キシレンホルムアルデヒド樹脂20g(OH基として0.112mol)及びトリエチルアミン17.13g(0.168mol)を塩化メチレン120gに溶解させた(溶液1)。0.249molの塩化シアンの塩化メチレン溶液48.1gと36%塩酸23.76g(0.235mol)と水147.3gとを撹拌混合した溶液へ、-5~+5℃で溶液1を10分かけて滴下した。30分撹拌した後、トリエチルアミン11.42g(0.112mol)と塩化メチレン11.4gの混合溶液を滴下し、さらに30分撹拌して反応を完結させた。反応液を分液し、有機相を分取した。得られた有機相を水100gで4回洗浄した後、蒸留により塩化メチレンを留去し、上記式(2a)で表されるフェノール変性キシレンホルムアルデヒド樹脂のシアン酸エステル化合物(フェノール変性キシレンホルムアルデヒド型シアン酸エステル化合物)23.1gを黄赤色粘性物として得た。
フェノール変性キシレンホルムアルデヒド型シアン酸エステル化合物の構造又は部分構造の例として、以下の式(2b’)で表される化合物が挙げられるが、それらに限定されるものではない。
2,6-キシレノール486.8g(3.99mol)及び触媒のPTSA(パラトルエンスルホン酸)6.3gを仕込み攪拌昇温し、液温125℃になったらキシレンホルムアルデヒド樹脂(ニカノールGL16、フドー製)144gを1時間かけて滴下した。滴下中、昇温を続け150℃、3時間で反応を完結させた。反応後120℃以下に冷却し、メタキシレン160gを添加し、次にメチルイソブチルケトン240gを添加し反応液を希釈した。希釈した反応液を、70~80℃の温水400gで3回繰り返し洗浄した。
蒸留操作により脱溶媒及び未反応2,6-キシレノールを留去し、下記式(2b’)で表される2,6-キシレノール変性キシレンホルムアルデヒド樹脂の粗製品362gを得た。
上記方法で得られた式(2b’’)の2,6-キシレノール変性キシレンホルムアルデヒド樹脂の精製品256g(OH基として1.45mol)及び1.6molトリエチルアミンを3-メチルテトラヒドロフラン600mLに溶解させた(溶液2)。その後、2.8molの塩化シアンの塩化メチレン溶液500gに-10℃で溶液2を1.5時間かけて滴下した。30分撹拌した後、0.8molのトリエチルアミンと塩化メチレン115gの混合溶液を滴下し、さらに30分撹拌して反応を完結させた。トリエチルアミンの塩酸塩をろ別し、得られたろ液を0.1N塩酸1000mLにより洗浄した後、NaCl水溶液1000mLで3回洗浄し、最後に水1000mLによる洗浄を行った。塩化メチレン溶液を硫酸ナトリウムによる乾燥し、蒸留操作により塩化メチレンを留去することにより、上記式(2b)で表される2,6-キシレノール変性キシレンホルムアルデヒド樹脂のシアン酸エステル化合物(2,6-キシレノール変性キシレンホルムアルデヒド型化合物)240gを黄赤色粘性物として得た。
・実施例1:
シアン酸エステル化合物(B)として、合成例1により得られた式(1a)のα-ナフトールアラルキル型シアン酸エステル化合物(シアネート当量:261g/eq.)のメチルエチルケトン(以下「MEK」と略す場合がある。)溶液(不揮発分50質量%)50質量部(不揮発分換算で25質量部)、エポキシ化合物(A)として、式(5)で表されるビフェニルアラルキル型エポキシ化合物(NC-3000-FH、エポキシ当量:320g/eq.、日本化薬(株)製)のMEK溶液(不揮発分75質量%)100質量部(不揮発分換算で75質量部)、及び硬化促進剤としてオクチル酸亜鉛のMEK溶液(不揮発分1質量%)24質量部(不揮発分換算で0.24質量部)をMEKに溶解又は分散させた。さらに、無機充填材(C)として、シリカ(SFP-130MC 電気化学工業(株)製、平均粒子径0.6μm)100部を添加して、高速攪拌装置を用いて30分間攪拌して、ワニス(エポキシ化合物(A)、シアン酸エステル化合物(B)及び無機充填材(C)を含む樹脂組成物の溶液)を得た。このワニスを更にMEKで希釈し、厚さ0.1mmのEガラス織布に含浸塗工し、160℃で4分間加熱乾燥して、樹脂組成物含有量50質量%のプリプレグを得た。得られたプリプレグを1、4、又は8枚重ねて、12μm厚の電解銅箔(F1-WS、古河電気工業(株)製)のマット面をプリプレグ側に配置し、圧力30kgf/cm2(約2.9MPa)、温度220℃で120分間の積層成形を行い、絶縁層厚さ0.1mm、0.4mm及び0.8mmの銅張積層板(それぞれプレプリグ1枚、4枚及び8枚使用)を得た。
シアン酸エステル化合物(B)であるα-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液(不揮発分50質量%)の使用量を70質量部(不揮発分換算35質量部)に変更し、エポキシ化合物(A)であるビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を86.7質量部(不揮発分換算65質量部)に変更した以外は、実施例1と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)であるα-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液(不揮発分50質量%)の使用量を80質量部(不揮発分換算40質量部)に変更し、エポキシ化合物(A)であるビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を80質量部(不揮発分換算60質量部)に変更した以外は、実施例1と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)であるα-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液(不揮発分50質量%)の使用量を70質量部(不揮発分換算35質量部)に変更し、エポキシ化合物(A)であるビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を66.7質量部(不揮発分換算50質量部)に変更し、更に第2のエポキシ化合物(A)として、式(7)で表されるナフタレン4官能型エポキシ化合物(HP4710、エポキシ当量240g/eq.、DIC(株)製)15質量部をワニスに配合した以外は、実施例1と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
第2のエポキシ化合物(A)として、ナフタレン4官能型エポキシ化合物15質量部の代わりに、式(6)で表されるナフタレン2官能型エポキシ化合物(HP4032D,エポキシ当量140g/eq.、DIC(株)製)15質量部を用いた以外は、実施例4と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
第2のエポキシ化合物(A)として、ナフタレン4官能型エポキシ化合物15質量部の代わりに、式(9)で表されるアントラキノン型エポキシ化合物(YX8800,エポキシ当量180g/eq.、三菱化学(株)製)15質量部を用いた以外は、実施例4と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)として、α-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液の代わりに、式(4)のRがHであるノボラック型シアン酸エステル化合物(PT-30、Ronza製)35質量部を用いた以外は、実施例2と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
エポキシ化合物(A)として、α-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液の代わりに、式(3)のRがHであり、nの平均値が3~4であるビフェニルアラルキル型シアン酸エステル化合物(BA-CN、三菱ガス化学製)35質量部を用いた以外は、実施例2と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)として、α-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液の代わりに、合成例2で得られた式(2a)のキシレンホルムアルデヒド樹脂のシアン酸エステル化合物35質量部を用いた以外は、実施例2と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)であるα-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液(不揮発分50質量%)の使用量を49質量部(不揮発分換算24.5質量部)に変更し、更にビスマレイミド(D)として、ビス(3-エチル-5-メチル-4-マレイミドフェニル)メタン(BMI-70、ケイ・アイ化成(株)製)のMEK溶液(不揮発分50質量%)21質量部(不揮発分換算10.5質量部)をワニスに配合した以外は、実施例2と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
ビスマレイミド(D)として、ビス(3-エチル-5-メチル-4-マレイミドフェニル)メタン(BMI-70)の代わりに、ポリフェニルメタンマレイミド(BMI-2300、大和化成工業(株)製)を用いた以外は、実施例10と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
第2の無機充填材(C)として、更に水酸化マグネシウム(平均粒子径2.0μm)(MGZ-6R、堺化学工業(株))50質量部をワニスに配合した以外は、実施例2と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
第2の無機充填材(C)として、水酸化マグネシウムの代わりに、酸化マグネシウム(平均粒子径0.4μm)(SMO-0.4、堺化学工業(株)製)50質量部を用いた以外は、実施例12と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
第2の無機充填材(C)として、水酸化マグネシウムの代わりに、ベーマイトシリカ(AOH-60、平均粒子径0.9μm、Nabaltec製)50質量部を用いた以外は、実施例12と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)である式(1)のα-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液(不揮発分50質量%)の使用量を40質量部(不揮発分換算20質量部)に変更し、エポキシ化合物(A)である式(5)のビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を106.7質量部(不揮発分換算80質量部)に変更した以外は、実施例1と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)である式(1)のα-ナフトールアラルキル型シアン酸エステル化合物のMEK溶液(不揮発分50質量%)の使用量を86.8質量部(不揮発分換算43.4質量部)に変更し、エポキシ化合物(A)である式(5)のビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を50.7質量部(不揮発分換算38質量部)に変更し、ビスマレイミド(D)であるビス(3-エチル-5-メチル-4-マレイミドフェニル)メタンのMEK溶液(不揮発分50質量%)の使用量を37.2部(不揮発分換算18.6質量部)に変更しした以外は、実施例10と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
シアン酸エステル化合物(B)である式(1)のα-ナフトールアラルキル型シアン酸エステル化合物を使用せず、代わりにナフトールアラルキル型フェノール樹脂(SN495V2(SN-OH)、フェノール当量236g/eq.、新日鐵化学(株)製)のMEK溶液(不揮発分50質量%)70質量部(不揮発分換算35質量部)を使用し、エポキシ化合物(A)である式(5)のビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を50.7質量部(不揮発分換算50質量部)に変更し、ビスマレイミド(D)であるビス(3-エチル-5-メチル-4-マレイミドフェニル)メタンのMEK溶液(不揮発分50質量%)の使用量を30質量部(不揮発分換算15質量部)に変更した以外は、比較例2と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
ビスマレイミド(D)であるビス(3-エチル-5-メチル-4-マレイミドフェニル)メタンを使用せず、エポキシ化合物(A)である式(5)のビフェニルアラルキル型エポキシ化合物のMEK溶液(不揮発分75質量%)の使用量を86.7質量部(不揮発分換算65質量部)に変更した以外は、比較例3と同様にしてワニス(樹脂組成物の溶液)を調製し、銅張積層板(金属箔張積層板)を得た。
・銅張積層板の湿式粗化処理と導体層めっき:
実施例1~14及び比較例1~4で得られた絶縁層厚さ0.1mm、0.4mm及び0.8mmの銅張積層板(それぞれプレプリグ1枚、4枚及び8枚使用)の表層銅箔をエッチングにより除去し、奥野製薬工業製の膨潤処理液(OPC-B103プリエッチ400ml/L、水酸化ナトリウム13g/L)に65℃で5分間浸漬した。次に、奥野製薬工業製の粗化処理液(OPC-1540MN100ml/L、OPC-1200エポエッチ100ml/L)に80℃で8分間浸漬した。最後に、奥野製薬工業製の中和処理液(OPC-1300ニュートライザー200ml/L)に45℃で5分間し、デスミア処理を行った。その後、奥野製薬工業製の無電解銅めっきプロセス(使用薬液名:OPC-370コンディクリーンM、OPC-SAL M、OPC-80キャタリスト、OPC-555アクセレーターM、ATSアドカッパーIW)にて、約0.5μmの無電解銅めっきを施し、130℃で1時間の乾燥を行った。続いて、電解銅めっきをめっき銅の厚みが18μmになるように施し、180℃で1時間の乾燥を行った。こうして、厚さ0.1mm、0.4mm及び0.8mmの絶縁層上に厚さ18μmの導体層(めっき銅)が形成された回路配線板サンプルを作製し、以下の評価に供した。
(1)めっき銅接着力:
上記手順により作製された絶縁層厚さ0.4mmの回路配線板サンプルを用い、めっき銅の接着力をJIS C6481に準じて3回測定し、平均値を求めた。電解銅めっき後の乾燥で膨れたサンプルに関しては、膨れていない部分を用いて評価を行った。結果を表1-1~1-3に示した。
上記手順により作製された絶縁層厚さ0.4mmの回路配線板サンプルを用い、50mm×50mm角にカットした後、片面の半分以外のめっき銅をエッチングにより除去したサンプルを作製した。そのサンプルを、プレッシャークッカー試験機(平山製作所製PC-3型)で、121℃、2気圧で1、3、5時間処理した後、260℃の半田槽に60秒間浸漬させて、外観変化の異常の有無を目視にて観察した。3枚試験を行い、一枚ごとに、異常が無いものを「良」、膨れが発生したものを「否」と表記した。結果を表1-1~1-3に示した。なお、表中「PCT-1H」、「PCT-3H」及び「PCT-5H」とは、それぞれプレッシャークッカー試験機による1、3、5時間処理後に得られた結果を示す。
上記手順により作製された絶縁層厚さ0.4mmの回路配線板サンプルを用い、その表層銅箔をエッチングにより除去し、上のデスミア処理を行ったサンプルを、130℃で1時間乾燥した。続いて、電解銅めっきをめっき銅の厚みが20μmになるように施し、180℃で1時間の乾燥を行った。レーザー顕微鏡(キーエンス製VK-X200)を用いて、3000倍の画像により、絶縁層表面のRz(10点平均粗さ)を求めた。結果を表1-1~1-3に示した。
上記手順により作製された絶縁層厚さ0.1mmの回路配線板サンプルを用い、その表層銅箔をエッチングにより除去し、線膨張係数:熱機械分析装置(TAインスツルメント製TA2940)で40℃から340℃まで毎分10℃で昇温し、60℃から120℃での面方向の線膨張係数を測定した。測定方向はガラスクロス面の縦方向(X)を測定した。結果を表1-1~1-3に示した。
上記手順により作製された絶縁層厚さ0.8mmの回路配線板サンプルを用い、その表層銅箔をエッチングにより除去し、熱機械分析装置(TAインスツルメント製Q800)で40℃から300℃まで毎分10℃で昇温し、ガラス転移温度を測定した。結果を表1-1~1-3に示した。
Claims (20)
- 絶縁層と、前記絶縁層の表面にめっきにより形成される導体層とを含むプリント配線板の前記絶縁層の材料として用いられる樹脂組成物であって、エポキシ化合物(A)、シアン酸エステル化合物(B)及び無機充填材(C)を含み、該シアン酸エステル化合物(B)が、ナフトールアラルキル型シアン酸エステル化合物、芳香族炭化水素ホルムアルデヒド型シアン酸エステル化合物、ビフェニルアラルキル型シアン酸エステル化合物及びノボラック型シアン酸エステル化合物からなる群から選ばれる1種以上であり、該エポキシ化合物(A)及び該シアン酸エステル化合物(B)の合計量に対して、該エポキシ化合物(A)の含有率が60~75質量%である、樹脂組成物。
- 前記シアン酸エステル化合物(B)が、ナフトールアラルキル型シアン酸エステル化合物、芳香族炭化水素ホルムアルデヒド型シアン酸エステル化合物、及びビフェニルアラルキル型シアン酸エステル化合物からなる群から選ばれる1種以上である、請求項1に記載の樹脂組成物。
- 前記エポキシ化合物(A)及び前記シアン酸エステル化合物(B)の合計量に対する前記エポキシ化合物(A)の含有率が65~75質量%である、請求項1又は2に記載の樹脂組成物。
- ナフトールアラルキル型シアン酸エステル化合物が式(1)で表され、芳香族炭化水素ホルムアルデヒド型シアン酸エステル化合物が式(2)で表され、ビフェニルアラルキル型シアン酸エステル化合物が式(3)で表され、ノボラック型シアン酸エステル化合物が式(4)で表わされる、請求項1~3のいずれか1項に記載の樹脂組成物。
R1は、各々独立に、メチレン基、メチレンオキシ基、メチレンオキシメチレン基、又はオキシメチレン基を表し、
R2は、各々独立に、C1~3アルキル基、水酸基、又はヒドロキシメチレン基を表し、
T1は、水素原子、水酸基、又はヒドロキシメチレン基を表し、
xは、各々独立に、0~4の整数を表し、
yは、各々独立に、0~3の整数を表し、
mは、0以上の整数を表し、
nは、1以上の整数を表す。)
- 前記エポキシ化合物(A)が、ビフェニルアラルキル型エポキシ化合物、ナフタレン型エポキシ化合物、ビスナフタレン型エポキシ化合物、アントラキノン型エポキシ化合物、ナフトールアラルキル型エポキシ化合物及びザイロック型エポキシ化合物からなる群から選ばれる1種以上である、請求項1~4のいずれか1項に記載の樹脂組成物。
- 前記無機充填材(C)が、シリカ、水酸化アルミニウム、ベーマイト、酸化マグネシウム、及び水酸化マグネシウムからなる群から選ばれる1種以上である、請求項1~6のいずれか1項に記載の樹脂組成物。
- 前記無機充填材(C)が、前記エポキシ化合物(A)及びシアン酸エステル化合物(B)の合計量に対して、50~250質量%である、請求項1~7のいずれか1項に記載の樹脂組成物。
- ビスマレイミド(D)をさらに含む請求項1~8のいずれか1項に記載の樹脂組成物。
- 前記ビスマレイミド(D)が、前記エポキシ化合物(A)及びシアン酸エステル化合物(B)の合計量に対して、5~20質量%である、請求項9に記載の樹脂組成物。
- 基材と、該基材に添着された、請求項1~10のいずれか1項に記載の樹脂組成物とを含むプリプレグ。
- 金属箔又は金属フィルムからなる外層と、該外層上に積層された、請求項1~10のいずれか1項に記載の樹脂組成物の層とを含む樹脂シート。
- 請求項11に記載のプリプレグと、該プリプレグの片面又は両面に積層された金属箔とを含む金属箔張積層板。
- 金属箔のマット面の表面粗さRzが1.0μm~2.5μmである、請求項13に記載の金属箔張積層板。
- 請求項11に記載のプリプレグをビルドアップ材料として用いて作製されたプリント配線板。
- 請求項12に記載の樹脂シートをビルドアップ材料として用いて作製されたプリント配線板。
- 前記樹脂シートを表面処理してめっきによりパターン形成することにより作製された、請求項16に記載のプリント配線板。
- 請求項13に記載の金属箔張積層板をビルドアップ材料として用いて作製されたプリント配線板。
- 前記金属箔張積層板の金属箔をエッチングし、表面処理してめっきによりパターン形成することにより作製された、請求項18に記載のプリント配線板。
- 絶縁層と、前記絶縁層の表面に形成された導体層とを含むプリント配線板であって、前記絶縁層が請求項1~10のいずれか1項に記載の樹脂組成物を含む、プリント配線板。
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JP2015117358A (ja) * | 2013-12-16 | 2015-06-25 | サムソン エレクトロ−メカニックス カンパニーリミテッド. | プリント回路基板用絶縁樹脂組成物およびこれを用いた製品 |
JP2015196821A (ja) * | 2014-04-03 | 2015-11-09 | 三菱瓦斯化学株式会社 | 樹脂組成物、プリプレグ、樹脂シート及び金属箔張り積層板 |
JP2015205397A (ja) * | 2014-04-17 | 2015-11-19 | 日立化成株式会社 | 積層板 |
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WO2018003314A1 (ja) * | 2016-06-29 | 2018-01-04 | 三菱瓦斯化学株式会社 | 樹脂組成物、樹脂シート、多層プリント配線板及び半導体装置 |
KR20190022517A (ko) * | 2016-06-29 | 2019-03-06 | 미츠비시 가스 가가쿠 가부시키가이샤 | 수지 조성물, 수지 시트, 다층 프린트 배선판 및 반도체 장치 |
KR102324899B1 (ko) | 2016-06-29 | 2021-11-10 | 미츠비시 가스 가가쿠 가부시키가이샤 | 수지 조성물, 수지 시트, 다층 프린트 배선판 및 반도체 장치 |
KR102324898B1 (ko) | 2016-06-29 | 2021-11-10 | 미츠비시 가스 가가쿠 가부시키가이샤 | 수지 조성물, 수지 시트, 다층 프린트 배선판 및 반도체 장치 |
CN109415491B (zh) * | 2016-06-29 | 2022-05-03 | 三菱瓦斯化学株式会社 | 树脂组合物、树脂片材、多层印刷线路板以及半导体装置 |
CN109415491A (zh) * | 2016-06-29 | 2019-03-01 | 三菱瓦斯化学株式会社 | 树脂组合物、树脂片材、多层印刷线路板以及半导体装置 |
WO2019044977A1 (ja) * | 2017-08-31 | 2019-03-07 | 三菱瓦斯化学株式会社 | 樹脂組成物、プリプレグ、金属箔張積層板、樹脂シート及びプリント配線板 |
JP6504533B1 (ja) * | 2017-08-31 | 2019-04-24 | 三菱瓦斯化学株式会社 | 樹脂組成物、プリプレグ、金属箔張積層板、樹脂シート及びプリント配線板 |
JP2019049007A (ja) * | 2018-11-30 | 2019-03-28 | 日本化薬株式会社 | エポキシ樹脂組成物、プリプレグ及び金属張積層板、プリント配線基板 |
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EP2810971A1 (en) | 2014-12-10 |
JP6065845B2 (ja) | 2017-01-25 |
CN104093764A (zh) | 2014-10-08 |
EP2810971A4 (en) | 2016-01-13 |
JPWO2013115069A1 (ja) | 2015-05-11 |
CN104093764B (zh) | 2018-06-08 |
US20150014032A1 (en) | 2015-01-15 |
US9351397B2 (en) | 2016-05-24 |
KR20140128309A (ko) | 2014-11-05 |
TW201336885A (zh) | 2013-09-16 |
EP2810971B1 (en) | 2018-09-19 |
KR101920106B1 (ko) | 2018-11-19 |
SG11201404327PA (en) | 2014-10-30 |
TWI577710B (zh) | 2017-04-11 |
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