WO2009104379A1 - 原子層成長装置および原子層成長方法 - Google Patents
原子層成長装置および原子層成長方法 Download PDFInfo
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- WO2009104379A1 WO2009104379A1 PCT/JP2009/000634 JP2009000634W WO2009104379A1 WO 2009104379 A1 WO2009104379 A1 WO 2009104379A1 JP 2009000634 W JP2009000634 W JP 2009000634W WO 2009104379 A1 WO2009104379 A1 WO 2009104379A1
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- 238000000034 method Methods 0.000 title claims description 24
- 238000000231 atomic layer deposition Methods 0.000 title abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 111
- 230000015572 biosynthetic process Effects 0.000 claims description 50
- 230000001590 oxidative effect Effects 0.000 claims description 37
- 238000005192 partition Methods 0.000 claims description 11
- 238000005121 nitriding Methods 0.000 claims description 9
- 230000008021 deposition Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 165
- 239000007789 gas Substances 0.000 description 148
- 239000001301 oxygen Substances 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 150000004767 nitrides Chemical class 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000005404 monopole Effects 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
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- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/452—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by activating reactive gas streams before their introduction into the reaction chamber, e.g. by ionisation or addition of reactive species
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45527—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
- C23C16/45536—Use of plasma, radiation or electromagnetic fields
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/314—Inorganic layers
- H01L21/3141—Deposition using atomic layer deposition techniques [ALD]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02164—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon oxide, e.g. SiO2
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02172—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02175—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal
- H01L21/02178—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides characterised by the metal the material containing aluminium, e.g. Al2O3
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/0223—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate
- H01L21/02233—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer
- H01L21/02236—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor
- H01L21/02238—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor silicon in uncombined form, i.e. pure silicon
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/02252—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by plasma treatment, e.g. plasma oxidation of the substrate
Definitions
- the present invention relates to an atomic layer growth (hereinafter abbreviated as ALD (Atomic Layer Deposition)) apparatus and an atomic layer growth method for forming a thin film in atomic layer units on a substrate.
- ALD atomic Layer Deposition
- the ALD method two types of gas mainly composed of elements constituting a film to be formed are alternately supplied onto a film formation target substrate, and a thin film is formed on the substrate in units of atomic layers repeatedly several times.
- This is a thin film forming technique for forming a film having a desired thickness.
- a source gas containing Si and an oxidizing gas containing O are used.
- a nitriding gas is used instead of the oxidizing gas.
- the ALD method has a high step coverage and film thickness controllability compared to a general CVD (Chemical Vapor Deposition) method, and can be used to form capacitors for memory elements and insulating films called “high-k gates”. Practical use is expected.
- an insulating film can be formed at a low temperature of about 300 ° C., application to formation of a gate insulating film of a thin film transistor of a display device using a glass substrate such as a liquid crystal display is expected.
- FIG. 4 is a schematic diagram showing an example of the configuration of a conventional ALD apparatus.
- An ALD apparatus 70 shown in FIG. 1 includes a film forming container (film forming chamber) 12, a gas supply unit 14, and an exhaust unit 16.
- the film formation container 12 has a metal hollow box shape and is grounded. Inside the film forming container 12, an antenna array 28 including a plurality of antenna elements 26 and a substrate stage 32 incorporating a heater 30 are arranged in order from the upper wall side to the lower wall side. In the antenna array 28, a virtual plane (arrangement direction) constituted by arranging a plurality of antenna elements 26 in parallel at a predetermined interval is arranged in parallel with the substrate stage 32.
- the antenna element 26 is a rod-shaped monopole made of a conductor having a length of (2n + 1) / 4 times the wavelength of high-frequency power (n is 0 or a positive integer).
- An antenna (antenna body) 39 is accommodated in a cylindrical member 40 made of a dielectric.
- Each antenna element 26 is proposed by the present applicant in Patent Document 1, and for example, extends in a direction orthogonal to the gas flow direction of the oxidizing gas supplied from the supply hole 20b toward the substrate stage 32. Thus, it is electrically insulated and attached to the film forming container 12 side wall.
- the antenna elements 26 are arranged in parallel at a predetermined interval, and are arranged so that the feeding positions between the adjacent antenna elements 26 are opposite side walls.
- the substrate 42 is placed on the upper surface of the substrate stage 32.
- the substrate stage 32 is heated by the heater 30, and the substrate 42 placed on the substrate stage 32 is held at a predetermined temperature until film formation is completed.
- the source gas containing Si component is supplied from the gas supply unit 14 to the supply pipe 18a,
- the film is supplied in the horizontal direction into the film forming container 12 through a supply hole 20 a formed in the left wall of the film forming container 12.
- the source gas is supplied to the surface of the substrate 42 and is adsorbed. At this time, no plasma is generated by the antenna element 26.
- the supply of the source gas was stopped, and surplus source gas other than the source gas adsorbed on the surface of the substrate 42 was formed from the film formation container 12 to the right wall of the film formation container 12 by the exhaust unit 16.
- the gas is exhausted in the horizontal direction through the exhaust hole 24 and the exhaust pipe 22.
- the oxidizing gas is supplied from the gas supply unit 14 in the horizontal direction into the film forming container 12 through the supply pipe 18 b and the supply hole 20 b formed in the left wall of the film forming container 12.
- high frequency power is supplied from the high frequency power supply unit 34 to each antenna element 26.
- plasma is generated around each antenna element 26 using the oxidizing gas, and the raw material gas adsorbed on the surface of the substrate 42 is oxidized.
- the SiO 2 film is formed on the substrate 42 in units of atomic layers by a series of steps including supply of source gas ⁇ exhaust of excess source gas ⁇ supply of oxidizing gas ⁇ exhaust of excess oxidizing gas. By repeating this process several times, a SiO 2 film having a predetermined thickness is formed on the substrate 42.
- Patent Document 2 is a proposal by the present applicant, which is a single-wafer ALD apparatus in which a monopole antenna is arranged in a film forming container as a plasma source.
- Patent Document 3 is a single-wafer ALD device for a semiconductor wafer, and uses a shower head and a substrate heater as a parallel plate device.
- Patent Document 4 is a batch-type ALD apparatus for semiconductor wafers, which employs a remote plasma system using parallel electrodes.
- Patent Document 4 proposes a structure in which a partition wall for isolating a plasma source is proposed, but the inside of the film forming container is still a complicated structure, and may still be a cause of generation of particles. There is.
- the structure of the film forming apparatus becomes complicated. There was a problem that the maintainability deteriorated.
- fine particles formed as a film or a reaction product are also deposited on the surface of the plasma source during film formation. When a part of the film or fine particles deposited on the surface of the plasma source falls, it becomes particles, which contaminates the substrate surface and degrades the film formation quality.
- the object of the present invention is to solve the problems of the prior art and improve the maintainability of the film formation container and reduce contamination by particles even when the reaction gas is activated using a plasma source.
- An object is to provide an atomic layer growth apparatus and an atomic layer growth method.
- the present invention provides an atomic layer growth apparatus for generating a film on a substrate by generating plasma using an oxidizing gas, A first chamber surrounded by a wall in which a reactive gas supply hole is formed, a second chamber surrounded by a wall in which a source gas supply hole is formed, and the first chamber.
- An antenna array in which a plurality of rod-shaped antenna elements are arranged in parallel to generate plasma using a reactive gas, and a substrate stage on which the substrate is placed, provided in the second chamber
- a connecting member for connecting the first chamber and the second chamber to supply a gas containing radicals generated by the antenna array from the first chamber to the second chamber.
- An atomic layer growth apparatus comprising:
- the atomic layer growth apparatus includes a preliminary container and a film forming container, the first chamber is a chamber of the preliminary container, the second chamber is a chamber of the film forming container, and the connection member is A supply pipe that connects an exhaust hole for the gas containing radicals formed on the wall of the preliminary container and a supply hole for the gas containing radicals formed on the wall of the film forming container; preferable.
- the exhaust hole of the spare container is provided on a side wall facing the side wall in which the supply hole of the spare container is formed via the antenna array, and the exhaust hole of the spare container is further provided in the spare container. It is preferable that it is formed at a position where a step is formed with respect to the lower wall. Moreover, it is preferable that the supply pipe is provided with an on-off valve that controls conduction between the preliminary container and the film forming container.
- the substrate stage moves up and down in the film formation container, and the second chamber of the film formation container is provided with a stopper protruding to position the substrate stage at a predetermined position, It is preferable that the mounting surface on which the substrate of the substrate stage is mounted is positioned so as to be flush with the surface of the stopper when the substrate stage is in the raised position, and a surface without a step is formed.
- the atomic layer growth apparatus includes a film formation container, Each of the first and second spaces is a space in the film formation container, and the connection member is a space in the film formation container disposed between the antenna array and the substrate stage. It is a partition plate that functions as a wall that separates the preliminary chamber serving as the first space and the film forming chamber serving as the second space, and a plurality of holes are preferably formed in the partition plate. .
- the plurality of holes formed in the partition plate are formed at positions where a step is formed with respect to the lower wall of the preliminary chamber.
- the reactive gas is, for example, an oxidizing gas or a nitriding gas.
- the step of adsorbing the component of the source gas on the substrate and supplying power to the antenna array in which a plurality of rod-shaped antenna elements provided in the first chamber are arranged in parallel are supplied to the first chamber.
- Generating a plasma using the reactive gas supplying a gas containing radicals generated by the plasma to the second chamber, and using a gas containing radicals supplied to the second chamber And a step of reacting a component of the source gas adsorbed on the substrate.
- the reactive gas is, for example, an oxidizing gas or a nitriding gas.
- the reactive gas can be activated without degrading the maintainability of the film formation container.
- the structure inside the film formation container greatly reduces the generation of particles due to the provision of the antenna array and complicating the apparatus configuration, and film formation is performed. Quality can be improved.
- FIG. 2 is a schematic plan view showing the configuration of the antenna array shown in FIG. 1. It is the schematic of other embodiment showing the structure of the atomic layer growth apparatus of this invention. It is the schematic of an example showing the structure of the conventional atomic layer growth apparatus.
- FIG. 5 is a schematic plan view showing the configuration of the antenna array shown in FIG. 4.
- FIG. 1 is a schematic diagram of an embodiment showing the configuration of an ALD apparatus according to the present invention.
- the ALD apparatus 10 shown in the figure applies two types of film forming gas (raw material gas and reactive gas) mainly composed of elements constituting the film to be formed by applying the ALD method. Supply alternately on the substrate. At that time, in order to enhance the reaction activity, plasma is generated to form an oxide film or nitride film of the source gas on the substrate in units of atomic layers. A film having a desired thickness is formed by repeating the process for a plurality of cycles with the above process as one cycle.
- the reactive gas is, for example, an oxidizing gas or a nitriding gas. Examples of the oxidizing gas include oxygen gas.
- the ALD apparatus 10 includes a film forming container 12, a preliminary chamber 13, gas supply units 14 and 15, and exhaust units 16 and 17 such as a vacuum pump.
- a film forming container 12 a preliminary chamber 13, gas supply units 14 and 15, and exhaust units 16 and 17 such as a vacuum pump.
- gas supply units 14 and 15 such as a vacuum pump.
- exhaust units 16 and 17 such as a vacuum pump.
- a nitriding gas such as nitrogen gas is used.
- the gas supply unit 14 is connected through a supply pipe 19 to a supply hole 21a formed in one side wall (left wall in the figure) of the preliminary container 13.
- the gas supply unit 14 supplies, for example, an oxidizing gas such as oxygen gas or ozone gas in the horizontal direction into the auxiliary container 13 (the auxiliary chamber 47) through the supply pipe 19 and the supply hole 21a.
- the gas supply unit 15 is connected to a supply hole 20a formed in one side wall (left wall in the figure) of the film forming container 12 through a supply pipe 18a.
- the gas supply unit 15 supplies the source gas in the horizontal direction into the film formation container 12 (film formation chamber 48) through the supply pipe 18a and the supply hole 20a.
- the supply of the source gas and the oxidizing gas is performed alternately.
- the exhaust unit 16 is connected to an exhaust hole 24 formed in one side wall (the right wall in the drawing) of the film forming chamber 48 through the exhaust pipe 22.
- the exhaust unit 16 keeps the pressure in the preliminary chamber 47 and the film forming chamber 48 constant via the exhaust hole 24 and the exhaust pipe 22, and supplies the source gas, oxygen radicals, and the like alternately supplied into the film forming chamber 48.
- the exhaust unit 17 is connected to an exhaust hole 25 formed in the lower wall of the film forming container 12 (a vacuum chamber (load lock chamber) 50 described later) through an exhaust pipe 23.
- the exhaust unit 17 basically evacuates the vacuum chamber 50 through the exhaust hole 25 and the exhaust pipe 23.
- an opening / closing valve for example, an electromagnetic valve
- a gas is provided in the middle of the supply pipe 18a.
- An on-off valve that controls conduction between the supply unit 15 and the film forming chamber 48 is provided. Further, on the way of the exhaust pipes 22 and 23, on-off valves for controlling the conduction between the exhaust parts 16 and 17 and the film forming chamber 48 and the vacuum chamber 50 are provided.
- the opening / closing valve of the supply pipe 19 is opened, and the source gas is supplied from the gas supply unit 15 into the film forming chamber 48 of the film forming container 12.
- the on-off valve of the supply pipe 18a is opened.
- the on-off valve of the exhaust pipe 22 is normally opened, and the gas supplied into the film forming chamber 48 is always exhausted.
- the open / close valve of the exhaust pipe 23 is opened.
- the preliminary container 13 and the film forming container 12 are composed of an exhaust hole 21b formed in a side wall (right wall in the drawing) facing the left wall of the preliminary container 13, and a side wall ( A supply hole 20b formed in the left wall in the figure is connected via a supply pipe 18b (a connecting member of the present invention).
- a gas containing oxygen radicals (neutral radicals of oxygen) generated from the plasma of oxidizing gas generated by the antenna array 28 in the preliminary chamber 47 is discharged from the preliminary chamber 47 to the exhaust hole 21b and the supply pipe 18b of the preliminary container 13.
- the film is supplied into the film forming chamber 48 through the supply hole 20 b of the film forming container 12.
- an on-off valve for controlling conduction between the preliminary chamber 47 and the film forming chamber 48 is also provided in the middle of the supply pipe 18b.
- the on-off valve is opened only when a gas containing oxygen radicals is supplied from the preliminary chamber 47 into the film forming chamber 48.
- the spare container 13 has a metal hollow box shape and is grounded.
- An antenna array 28 including two antenna elements 26a and 26b is disposed inside the spare container 13 (in the spare chamber 47).
- the internal space of the preliminary container 13 corresponds to the first chamber of the present invention surrounded by a wall in which an oxidizing gas supply hole is formed.
- the high frequency power (high frequency current) in the VHF band (for example, 80 MHz) generated by the high frequency power supply unit 34 is distributed by the distributor 36, and the impedance matching device 38a, It is supplied to each antenna element 26a, 26b via 38b.
- the impedance matching units 38a and 38b are used together with the adjustment of the frequency of the high frequency power generated by the high frequency power supply unit 34, and correct the impedance mismatch caused by the change in the load of the antenna elements 26a and 26b during the generation of plasma.
- the antenna elements 26a and 26b are, for example, rod-shaped monopole antennas (antenna main bodies) 39a and 39b made of a conductor such as copper, aluminum, or platinum, and cylindrical members 40a and 40b made of a dielectric such as quartz or ceramics. It is housed and configured. By covering the antenna bodies 39a and 39b with a dielectric, the capacity and inductance of the antenna can be adjusted, and high-frequency power can be efficiently propagated along the longitudinal direction, and electromagnetic waves can be transmitted from the antenna elements 26a and 26b to the surroundings. It can be radiated efficiently.
- Each antenna element 26a, 26b is electrically insulated so as to extend in a direction orthogonal to the gas flow direction of the oxidizing gas supplied from the gas supply unit 14 into the auxiliary chamber 47, and the auxiliary container 13 is provided. It is attached to the side wall. Further, the antenna elements 26a and 26b are arranged in parallel at a predetermined interval, for example, 50 mm, and the feeding positions between the adjacent antenna elements 26a and 26b are on the side walls facing each other. So that the feeding directions are opposite to each other. As a result, electromagnetic waves are uniformly formed across the virtual plane of the antenna array 28.
- the electric field strength in the longitudinal direction of the antenna elements 26a and 26b is zero at the supply end of the high-frequency power, and is maximum at the tip (the opposite end of the supply end). Therefore, the antenna elements 26a and 26b are arranged so that the feeding positions of the antenna elements 26a and 26b are opposite to each other, and high frequency power is supplied to the respective antenna elements 26a and 26b from opposite directions, whereby the respective antenna elements 26a and 26b The electromagnetic waves radiated from 26b are combined to form a uniform plasma.
- the antenna elements 26a and 26b are arranged in parallel to the gas flow direction of the oxidizing gas, and the arrangement direction of the plurality of antenna elements 26a and 26b is also parallel to the gas flow direction of the oxidizing gas.
- the antenna elements 26a and 26b are those proposed by the present applicant in Patent Document 1.
- the antenna bodies 39a and 39b have a diameter of about 6 mm
- the cylindrical members 40a and 40b have a diameter of about 12 mm.
- the antenna length of the antenna elements 26a and 26b is (2n + 1) / 4 times the wavelength of the high frequency power ( When n is equal to 0 or a positive integer), a standing wave is generated to resonate, and plasma is generated around the antenna elements 26a and 26b.
- the high-frequency power is supplied from the high-frequency power supply unit 34 to each of the antenna elements 26a and 26b only during the period in which the oxidizing gas is supplied from the gas supply unit 14 into the preliminary chamber 47.
- the spare container 13 spare container 13
- plasma is generated by the antenna array 28 using the oxidizing gas supplied from the gas supply unit 14, and oxygen radicals (neutral radicals of oxygen) generated by the plasma are generated.
- oxygen radicals neutral radicals of oxygen
- the antenna array 28 By using the antenna array 28, it is possible to stably generate a high-density plasma and supply a gas containing oxygen radicals to the large-area substrate 42 in a substantially uniform manner. Can be increased.
- the antenna array 28 which is a plasma source and the substrate stage 32 on which the substrate 42 is placed are arranged in a separated space, the oxidizing gas is activated without deteriorating the maintainability of the film formation container 12. it can. That is, since the antenna array 28 is not disposed in the film forming container 12, the structure in the film forming container 12 significantly reduces the generation of particles due to the provision of the antenna array 28 and the complicated apparatus configuration. In addition, film formation quality can be improved.
- the film forming container 12 can be downsized (thinned). High-speed exhaust and film formation gas switching required for the ALD process are possible.
- the antenna elements 26a and 26b can be installed even in a narrow space, it is not necessary to widen the space of the auxiliary container 13 (the auxiliary chamber 47). For example, a case where a plasma source of another type such as a parallel plate type is installed. In comparison, the exclusive area and cost of the entire apparatus can be reduced. Also, since the film forming container 12 does not require a space for installing the antenna array 28, the film forming container 12 can be made thinner as described above, and the cost can be reduced similarly.
- the exhaust hole 21b of the preliminary container 13 (preliminary chamber 47) is formed on the side wall (the right wall) opposite to the side wall (left wall in the figure) where the supply hole 21a of the preliminary container 13 is formed via the antenna array 28.
- it is formed at a position where a step is formed with respect to the lower wall of the preliminary container 13. This step lengthens the transport distance (transport time) of the plasma diffused around the antenna array 28, so that the charged plasma is suppressed from being supplied from the preliminary chamber 47 into the film forming chamber 48 and charged.
- the supply of neutral radicals of oxygen generated from plasma can be promoted. Thereby, the damage by the plasma of the film
- the film forming container 12 has a metal hollow box shape and is grounded. Inside the film forming container 12, a substrate stage 32 containing a heater 30 is horizontally disposed in a space between the upper wall and the lower wall.
- the internal space of the film formation container 12 corresponds to the second chamber of the present invention surrounded by a wall in which a feed hole for source gas is formed.
- the substrate stage 32 is, for example, a rectangular metal plate having a size smaller than the inner wall surface of the film forming container 12, and is moved up and down by a lifting mechanism 44 such as a power cylinder.
- a heater stopper that is, a stopper for the substrate stage 32
- An L-shaped step corresponding to the height of the side surface of the heater stopper 46 is provided on the upper surface of the edge portion of the substrate stage 32.
- the inside of the film forming container 12 is separated into a film forming chamber 48 which is a space above the substrate stage 32 and a vacuum chamber 50 which is a space below the substrate stage 32.
- the film forming chamber 48 is hermetically sealed by being evacuated by the exhaust unit 17. Since a stepless surface is formed between the substrate stage 32 and the heater stopper 46, a uniform oxide film can be formed on the substrate without causing turbulent flow of gas flowing on the substrate due to the step.
- the upper wall of the film formation chamber 48 is formed flush with the lower wall of the film formation chamber 48 including the upper surface of the substrate stage 32 on the substrate 42. It is formed so as to be flush with the film. Note that it is not essential to form the upper wall of the film formation chamber 48 flush. However, it is preferable in that a uniform oxide film is formed on the substrate.
- a gap 51 with a predetermined interval is formed between the lower surface of the heater stopper 46 and the stepped portion on the upper surface of the edge of the substrate stage 32.
- the substrate stage 32 is lowered by the elevating mechanism 44, and the substrate 42 is placed on the upper surface of the substrate stage 32 in the vacuum chamber 50. Thereafter, the substrate stage 32 is raised to a position where the upper surface of the edge of the substrate stage 32 comes into contact with the lower surface of the heater stopper 46, and the vacuum chamber 50 is evacuated by the exhaust unit 17 to seal the film forming chamber 48. Further, the substrate stage 32 is heated by the heater 30, and the substrate 42 placed on the substrate stage 32 is maintained at a predetermined temperature, for example, about 400 ° C. until film formation is completed.
- the source gas containing Si is horizontally supplied from the gas supply unit 15 into the film forming chamber 48 for about 1 second.
- the pressure is supplied in the direction of about 20 Pa.
- the source gas is adsorbed on the surface of the substrate 42. At this time, no plasma is generated by the antenna element 26.
- the supply of the source gas is stopped, and excess source gas other than the source gas adsorbed on the surface of the substrate 42 is exhausted from the film forming chamber 48 in the horizontal direction by the exhaust unit 16 for about 1 second.
- the gas supply unit 15 supplied the purge gas (inert gas) into the film forming chamber 48 through the supply pipe 18a and the supply hole 20a, and the gas was supplied into the film forming chamber 48 by the exhaust unit 16.
- the source gas may be exhausted.
- an oxidizing gas is supplied from the gas supply unit 14 into the preliminary chamber 47 in the horizontal direction for about 1 second.
- high frequency power of about 1500 W is supplied from the high frequency power supply unit 34 to each of the antenna elements 26a and 26b.
- plasma is generated around each antenna element 26a, 26b using the oxidizing gas, and oxygen radicals are generated from the plasma.
- a gas containing oxygen radicals is supplied from the preliminary chamber 47 into the film forming chamber 48 and diffused over the entire surface of the substrate 42, and the source gas adsorbed on the surface of the substrate 42 is oxidized to form a SiO 2 film.
- the supply of oxidizing gas and the supply of high-frequency power to the antenna elements 26a and 26b (that is, generation of plasma) are stopped, and excess oxidizing gas and plasma in the preliminary chamber 47 that does not contribute to oxidation, Oxygen radicals, reaction products, and the like are exhausted horizontally by the exhaust unit 16 for about 1 second.
- the purge gas is supplied from the gas supply unit 14 into the film forming chamber 48 via the supply pipe 19, the preliminary chamber 47, and the supply pipe 18 b, the preliminary chamber 47 and the film forming chamber 48 are supplied by the exhaust unit 16. You may exhaust from.
- the SiO 2 film is formed on the substrate 42 in units of atomic layers by a series of steps including supply of source gas ⁇ exhaust of excess source gas ⁇ supply of oxidizing gas ⁇ exhaust of excess oxidizing gas. By repeating this process several times, a SiO 2 film having a predetermined thickness is formed on the substrate 42.
- membrane formed in this invention is not limited at all.
- the source gas should be appropriately determined according to the film to be formed.
- an oxidizing gas containing O is used as one of the reactive gases
- a nitriding gas containing N is used as one of the reactive gases.
- the source gas is a reaction gas mainly containing an element other than O among elements constituting the oxide film to be formed.
- the source gas is a reaction gas mainly composed of an element other than N among elements constituting the nitride film to be formed.
- the source gas may be supplied to the substrate from the side wall side of the film formation container, or may be supplied to the substrate from the upper wall side of the film formation container via a shower head.
- a shower head is provided in the space between the upper wall of the film formation container and the substrate stage, and the source gas is diffused evenly. It is desirable not to spray (do not hit) the substrate directly.
- the source gas may be exhausted from the side wall side of the film forming container, from the lower wall side, or from both the side wall side and the lower wall side.
- the preliminary chamber 47 and the film forming chamber 48 are connected by the six supply pipes 18b for supplying the oxidizing gas, but the number is not limited at all.
- the number of source gas supply pipes and exhaust pipes is not limited.
- the pressure, temperature, processing time, gas flow rate, etc. in the film formation container should be appropriately determined according to the type of film to be formed, the dimensions of the film formation container and the substrate, etc.
- the present invention is not limited to the above embodiment. Further, the material, shape and dimensions of the film forming container and the substrate stage are not limited at all.
- the number of antenna elements is not limited, but in consideration of the uniformity of the generated plasma, it is desirable to arrange the feeding positions between adjacent antenna elements so as to be opposite side walls. Further, there are no particular restrictions on the arrangement and dimensions of the antenna elements.
- each of the plurality of antenna elements may be arranged in a line in the horizontal direction or in a line in the vertical direction.
- Each of the antenna elements may be arranged in two or more rows in the horizontal direction, or may be arranged in two or more columns in the vertical direction. At this time, it is desirable to arrange the rows or columns of adjacent antenna elements so that the positions of the antenna elements are staggered.
- the inside of the film forming container (the film forming chamber 48 shown in FIG. 1) is replaced with a spare chamber serving as the first chamber of the present invention.
- a partition plate 52 that serves as a wall that separates the film formation chamber from the second chamber of the present invention may be provided between the antenna array 28 and the substrate stage 32.
- the partition plate 52 is a member having a plurality of holes for supplying a gas containing neutral radicals from the preliminary chamber into the film formation chamber, such as a shower head.
- the plurality of holes formed in the partition plate 52 are formed at positions where a step is formed with respect to the lower wall of the preliminary chamber.
- the lifting mechanism 44 and the vacuum chamber 50 are not essential components. In the absence of the lifting mechanism 44 and the vacuum chamber 50, the film forming container 12 becomes the film forming chamber 48.
- the present invention is basically as described above. Although the atomic layer growth apparatus of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment, and various modifications and changes may be made without departing from the spirit of the present invention. It is.
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Abstract
Description
反応性ガスの供給孔が形成された壁によって囲まれた第1の室と、原料ガスの供給孔が形成された壁によって囲まれた第2の室と、前記第1の室内に設けられた、反応性ガスを用いてプラズマを生成するための、棒状の複数のアンテナ素子が平行に配設されたアンテナアレイと、前記第2の室内に設けられた、前記基板が載置される基板ステージと、前記第1の室から前記第2の室に、前記アンテナアレイにより生成されたラジカルを含むガスを供給するために、前記第1の室と前記第2の室とを接続する接続部材と、を備えている原子層成長装置を提供する。
また、前記供給管には、前記予備容器と前記成膜容器との導通を制御する開閉弁が設けられることが好ましい。
前記第1および第2の空間はいずれも成膜容器内の空間であり、前記接続部材は、前記アンテナアレイと前記基板ステージとの間に配設された、前記成膜容器内の空間を、前記第1の空間となる予備室と前記第2の空間となる成膜室とに分離する壁の役割を果たす仕切り板であり、前記仕切り板には複数の孔が形成されていることが好ましい。
前記反応性ガスは、例えば、酸化ガスあるいは窒化ガスである。
12 成膜容器
13 予備容器
14,15 ガス供給部
16,17 排気部
18a,18b、19 供給管
20a、20b、21a 供給孔
22,23 排気管
21b、24,25 排気孔
26,26a、26b アンテナ素子
28 アンテナアレイ
30 ヒータ
32 基板ステージ
34 高周波電力供給部
36 分配器
38,38a、38b インピーダンス整合器
39,39a、39b アンテナ本体
40,40a、40b 円筒部材
42 成膜対象基板(基板)
44 昇降機構
46 ヒータストッパ
47 予備室
48 成膜室
50 真空室
51 隙間
52 仕切り板
以下の説明は、縦370mm×横470mm角の基板42表面にSiO2膜(酸化膜)を形成した場合の一例である。
以上、本発明の原子層成長装置について詳細に説明したが、本発明は上記実施形態に限定されず、本発明の主旨を逸脱しない範囲において、種々の改良や変更をしてもよいのはもちろんである。
Claims (10)
- 反応性ガスを用いてプラズマを生成することにより、基板上に膜を生成する原子層成長装置であって、
反応性ガスの供給孔が形成された壁によって囲まれた第1の室と、
原料ガスの供給孔が形成された壁によって囲まれた第2の室と、
前記第1の室内に設けられた、反応性ガスを用いてプラズマを生成するための、棒状の複数のアンテナ素子が平行に配設されたアンテナアレイと、
前記第2の室内に設けられた、前記基板が載置される基板ステージと、
前記第1の室から前記第2の室に、前記アンテナアレイにより生成された反応性ガスのラジカルを含むガスを供給するために、前記第1の室と前記第2の室とを接続する接続部材と、を備えている原子層成長装置。 - 予備容器と、成膜容器とを備え、
前記第1の室は予備容器の室であり、前記第2の室は成膜容器の室であり、
前記接続部材は、前記予備容器の壁に形成された、前記ラジカルを含むガスの排気孔と、前記成膜容器の壁に形成された、前記ラジカルを含むガスの供給孔と、を接続する供給管である、請求項1に記載の原子層成長装置。 - 前記予備容器の排気孔は、前記アンテナアレイを介して、前記予備容器の供給孔が形成された側壁に対向する側壁に設けられ、さらに、前記予備容器の排気孔は、前記予備容器の下壁に対して段差がつく位置に形成されている、請求項2に記載の原子層成長装置。
- 前記供給管には、前記予備容器と前記成膜容器との導通を制御する開閉弁が設けられる、請求項2または3に記載の原子層成長装置。
- 前記基板ステージは、前記成膜容器内を昇降可能に移動し、
前記成膜容器の前記第2の室には、前記基板ステージを所定の位置に位置決めするストッパが突出して設けられ、
前記基板ステージの基板を載置する載置面は、前記基板ステージが上昇した位置にあるとき前記ストッパの面と面一になるように位置決めされ、段差のない面が形成される、請求項2~4のいずれか1項に記載の原子層成長装置。 - 成膜容器を備え、
前記第1および第2の室はいずれも成膜容器の室であり、前記接続部材は、前記アンテナアレイと前記基板ステージとの間に配設された、前記成膜容器の室を、前記第1の室となる予備室と前記第2の室となる成膜室とに分離する壁の役割を果たす仕切り板であり、前記仕切り板には複数の孔が形成されている、請求項1に記載の原子層成長装置。 - 前記仕切り板に形成された複数の孔は、前記予備室の下壁に対して段差がつく位置に形成されていることを特徴とする請求項6に記載の原子層成長装置。
- 前記反応性ガスは、酸化ガスあるいは窒化ガスである、請求項1~7のいずれか1項に記載の原子層成長装置。
- 反応性ガスを用いてプラズマを生成することにより、基板上に膜を生成する原子層成長方法であって、
第2の室に原料ガスを供給することにより、基板に原料ガスの成分を吸着させるステップと、
第1の室に設けられた棒状の複数のアンテナ素子が平行に配設されたアンテナアレイに給電して、前記第1の室に供給された反応性ガスを用いてプラズマを発生させ、このプラズマにより生成されるラジカルを含むガスを、前記第2の室に供給するステップと、
前記第2の室に供給されたラジカルを含むガスを用いて、基板に吸着された原料ガスを反応させるステップと、を有する原子層成長方法。 - 前記反応性ガスは、酸化ガスあるいは窒化ガスである、請求項9に記載の原子層成長方法。
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EP09712050.5A EP2251898A4 (en) | 2008-02-18 | 2009-02-17 | ATOMIC LAYER DEPOSITION APPARATUS AND ATOMIC LAYER DEPOSITION METHOD |
KR1020107019467A KR101111494B1 (ko) | 2008-02-18 | 2009-02-17 | 원자층 성장 장치 및 원자층 성장 방법 |
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Also Published As
Publication number | Publication date |
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KR20100106614A (ko) | 2010-10-01 |
JPWO2009104379A1 (ja) | 2011-06-16 |
JP4426642B2 (ja) | 2010-03-03 |
TW200946714A (en) | 2009-11-16 |
EP2251898A1 (en) | 2010-11-17 |
KR101111494B1 (ko) | 2012-02-23 |
US8607733B2 (en) | 2013-12-17 |
EP2251898A4 (en) | 2013-05-22 |
US20100323125A1 (en) | 2010-12-23 |
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