JP6661625B2 - 高温酸化ケイ素原子層堆積技術 - Google Patents
高温酸化ケイ素原子層堆積技術 Download PDFInfo
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- JP6661625B2 JP6661625B2 JP2017517714A JP2017517714A JP6661625B2 JP 6661625 B2 JP6661625 B2 JP 6661625B2 JP 2017517714 A JP2017517714 A JP 2017517714A JP 2017517714 A JP2017517714 A JP 2017517714A JP 6661625 B2 JP6661625 B2 JP 6661625B2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 title claims description 7
- 238000000231 atomic layer deposition Methods 0.000 title description 45
- 239000007789 gas Substances 0.000 claims description 164
- 238000012545 processing Methods 0.000 claims description 123
- 229910052760 oxygen Inorganic materials 0.000 claims description 78
- 239000001301 oxygen Substances 0.000 claims description 76
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 75
- 238000000034 method Methods 0.000 claims description 73
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- 239000010410 layer Substances 0.000 claims description 59
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- 229910052710 silicon Inorganic materials 0.000 claims description 52
- 239000010703 silicon Substances 0.000 claims description 52
- 239000002356 single layer Substances 0.000 claims description 52
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 230000008569 process Effects 0.000 claims description 37
- 229910052740 iodine Inorganic materials 0.000 claims description 22
- 229910052794 bromium Inorganic materials 0.000 claims description 20
- 229910052801 chlorine Inorganic materials 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 17
- 125000000041 C6-C10 aryl group Chemical group 0.000 claims description 16
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 13
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 9
- 125000000027 (C1-C10) alkoxy group Chemical group 0.000 claims description 8
- 125000005103 alkyl silyl group Chemical group 0.000 claims description 8
- 150000004820 halides Chemical class 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000003848 UV Light-Curing Methods 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims 4
- 125000000467 secondary amino group Chemical class [H]N([*:1])[*:2] 0.000 claims 4
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- -1 aminosilane compound Chemical class 0.000 description 7
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- 150000003335 secondary amines Chemical group 0.000 description 5
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 5
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- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 3
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
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- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 3
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229940126062 Compound A Drugs 0.000 description 2
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
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- VDWYYSUWNTXHFV-UHFFFAOYSA-N methanamine trimethylsilane Chemical compound CN.C[SiH](C)C VDWYYSUWNTXHFV-UHFFFAOYSA-N 0.000 description 2
- NEMUVWSQFWIZKP-UHFFFAOYSA-N n-methyl-n-trichlorosilylmethanamine Chemical compound CN(C)[Si](Cl)(Cl)Cl NEMUVWSQFWIZKP-UHFFFAOYSA-N 0.000 description 2
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- HIYJCTIYKIUGET-UHFFFAOYSA-N C[SiH](C)C.C(C)NCC Chemical compound C[SiH](C)C.C(C)NCC HIYJCTIYKIUGET-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910002601 GaN Inorganic materials 0.000 description 1
- 229910005540 GaP Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- JOOMLFKONHCLCJ-UHFFFAOYSA-N N-(trimethylsilyl)diethylamine Chemical compound CCN(CC)[Si](C)(C)C JOOMLFKONHCLCJ-UHFFFAOYSA-N 0.000 description 1
- ZSZWFVOEVIAHPL-UHFFFAOYSA-N N-methylmethanamine trimethylsilane Chemical compound CNC.C[SiH](C)C ZSZWFVOEVIAHPL-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
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- WYEMLYFITZORAB-UHFFFAOYSA-N boscalid Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1NC(=O)C1=CC=CN=C1Cl WYEMLYFITZORAB-UHFFFAOYSA-N 0.000 description 1
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- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 1
- ADTGAVILDBXARD-UHFFFAOYSA-N diethylamino(dimethyl)silicon Chemical compound CCN(CC)[Si](C)C ADTGAVILDBXARD-UHFFFAOYSA-N 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- HZXMRANICFIONG-UHFFFAOYSA-N gallium phosphide Chemical compound [Ga]#P HZXMRANICFIONG-UHFFFAOYSA-N 0.000 description 1
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- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
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- JPPNPJJKGOYLBH-UHFFFAOYSA-N n-(trimethylsilylmethyl)ethanamine Chemical compound CCNC[Si](C)(C)C JPPNPJJKGOYLBH-UHFFFAOYSA-N 0.000 description 1
- AGFVQXSUESKCTB-UHFFFAOYSA-N n-[dimethyl(prop-2-enyl)silyl]-n-ethylethanamine Chemical compound CCN(CC)[Si](C)(C)CC=C AGFVQXSUESKCTB-UHFFFAOYSA-N 0.000 description 1
- VLSFITLAADJYOS-UHFFFAOYSA-N n-methyl-1-trimethylsilylmethanamine Chemical compound CNC[Si](C)(C)C VLSFITLAADJYOS-UHFFFAOYSA-N 0.000 description 1
- KAHVZNKZQFSBFW-UHFFFAOYSA-N n-methyl-n-trimethylsilylmethanamine Chemical compound CN(C)[Si](C)(C)C KAHVZNKZQFSBFW-UHFFFAOYSA-N 0.000 description 1
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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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- 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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/401—Oxides containing silicon
- C23C16/402—Silicon dioxide
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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
- C23C16/45542—Plasma being used non-continuously during the ALD reactions
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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
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- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45548—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction
- C23C16/45551—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction for relative movement of the substrate and the gas injectors or half-reaction reactor compartments
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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]
- C23C16/45553—Atomic layer deposition [ALD] characterized by the use of precursors specially adapted for ALD
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/02205—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 the layer being characterised by the precursor material for deposition
- H01L21/02208—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si
- H01L21/02219—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 the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and nitrogen
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/0226—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
- H01L21/02274—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 in the presence of a plasma [PECVD]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
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Description
Claims (18)
- 膜を堆積する方法であって、
表面を有するウエハを反応チャンバ内に位置決めすることと、
前記ウエハを前記反応チャンバの内部で所定温度まで加熱することと、
前記ウエハの少なくとも一部を所定の時間、ケイ素前駆体に曝露して、前記ウエハ上にシリコン層を形成することであって、前記ケイ素前駆体が、一般式R3Si:NY3を有する化合物を含み、各Rが、水素;Cl、Br、及びIからなる群から選択されたハロゲン化物;直鎖又は分岐鎖C1〜C10アルキル基;直鎖又は分岐鎖C1〜C10アルコキシ基;並びにC6〜C10アリール基から独立して選択され、各Yが、独立して、Cl、Br、及びIからなる群から選択されたハロゲン化物;直鎖又は分岐鎖C1〜C10アルキルシリル基;並びに/或いはC6〜C10アリール基である、形成することと、
前記ウエハ上の前記シリコン層と反応するように前記ウエハの少なくとも一部を酸素プラズマ及び/又は酸素源ガスに曝露して、酸化ケイ素膜を形成することと
を含む方法。 - 前記ウエハの前記所定温度が50℃から1000℃の範囲内である、請求項1に記載の方法。
- 前記ケイ素前駆体が、式Me3Si:Lを有する化合物をさらに含み、式中、Meはメチル基であり、Lは1級又は2級アミンであり、前記ウエハの前記所定温度が、400℃から700℃の範囲内である、請求項1に記載の方法。
- 前記ケイ素前駆体が、式X3Si:Lを有する化合物をさらに含み、式中、Xは、Cl、Br、I、及びそれらの組み合わせからなる群から選択されたハロゲンであり、Lは1級又は2級アミンであり、前記ウエハの前記所定温度が、400℃から700℃の範囲内である、請求項1に記載の方法。
- 膜を堆積する方法であって、
表面を有するウエハを反応チャンバ内に位置決めすることと、
前記ウエハを前記反応チャンバの内部で所定温度まで加熱することと、
前記ウエハの少なくとも一部を所定の時間、ケイ素前駆体に曝露して、前記ウエハ上にシリコン層を形成することであって、前記ケイ素前駆体が、式X 3 Si:Lを有する化合物であり、式中、Xは、Cl、Br、I、及びそれらの組み合わせからなる群から選択されたハロゲンであり、Lは1級又は2級アミンである、形成することと、
前記ウエハ上の前記シリコン層と反応するように前記ウエハの少なくとも一部を酸素プラズマ及び/又は酸素源ガスに曝露して、酸化ケイ素膜を形成することと
を含み、
前記ウエハの前記所定温度が、400℃から700℃の範囲内である、
方法。 - 前記ケイ素前駆体を20℃から200℃の範囲内の温度に加熱して、前記ケイ素前駆体の連続的な流れを蒸気として前記反応チャンバに供給することをさらに含む、請求項4または5に記載の方法。
- 前記反応チャンバが複数の処理領域を備えており、前記複数の処理領域のそれぞれがガスカーテンによって隣接する処理領域から分離されており、前記ケイ素前駆体並びに前記酸素プラズマ及び/又は酸素源ガスが、別々の処理領域内に流される、請求項1から6のいずれか一項に記載の方法。
- 前記ウエハの表面が、10:1から100:1の範囲内のアスペクト比を有する1つ又は複数のデバイスフィーチャを含み、前記ケイ素前駆体が、前記1つ又は複数のデバイスフィーチャ上に共形層を形成する、請求項1から6のいずれか一項に記載の方法。
- SiO2膜をウエハ上に堆積する方法であって、
ウエハ表面をケイ素前駆体に曝露することであって、前記ケイ素前駆体が、R3Si:NY3を含み、各Rが、水素;Cl、Br、及びIからなる群から選択されたハロゲン化物;直鎖又は分岐鎖C1〜C10アルキル基;直鎖又は分岐鎖C1〜C10アルコキシ基;並びに/或いはC6〜C10アリール基から独立して選択され、各Yが、Cl、Br、及びIからなる群;直鎖又は分岐鎖C1〜C10アルキルシリル基;並びに/或いはC6〜C10アリール基から独立して選択されており、前記ケイ素前駆体の少なくとも一部が前記ウエハ表面上に吸着される、曝露することと、
吸着された前記ケイ素前駆体が前記ウエハ表面上で分解するように前記ウエハ表面を450℃から650℃の範囲内の温度に加熱し、単層又は準単層のケイ素膜を形成することと、
前記単層又は準単層のケイ素膜及びウエハ表面を酸素源に曝露することであって、前記酸素源が前記単層又は準単層のケイ素膜と反応して、単層又は準単層のSiO2膜を形成する、曝露することと
を含む方法。 - SiO 2 膜をウエハ上に堆積する方法であって、
ウエハ表面をケイ素前駆体に曝露することであって、前記ケイ素前駆体が、式X 3 Si:Lを有する化合物であり、式中、Xは、Cl、Br、I、及びそれらの組み合わせからなる群から選択されたハロゲンであり、Lは1級又は2級アミンであり、前記ケイ素前駆体の少なくとも一部が前記ウエハ表面上に吸着される、曝露することと、
吸着された前記ケイ素前駆体が前記ウエハ表面上で分解するように前記ウエハ表面を400℃から700℃の範囲内の温度に加熱し、単層又は準単層のケイ素膜を形成することと、
前記単層又は準単層のケイ素膜及びウエハ表面を酸素源に曝露することであって、前記酸素源が前記単層又は準単層のケイ素膜と反応して、単層又は準単層のSiO 2 膜を形成する、曝露することと
を含む方法。 - 前記ウエハ表面をケイ素前駆体に曝露することが、前記ケイ素前駆体をシャワーヘッドを通して通過させることと、前記ウエハを前記シャワーヘッドの下方を通過させることとを含む、請求項9または10に記載の方法。
- 前記ウエハがシリコンウエハであり、前記ウエハ表面が、前記シャワーヘッドの下方を通過することによって、所定の時間、前記ケイ素前駆体に曝露されるように、前記シリコンウエハが回転するサセプタによって支持される、請求項11に記載の方法。
- 前記酸素源が、酸素プラズマ及び/又はオゾン含有ガスである、請求項9または10に記載の方法。
- 前記ウエハ表面が、10:1から100:1の範囲内のアスペクト比を有する1つ又は複数のデバイスフィーチャを含んでおり、前記ケイ素前駆体が、前記1つ又は複数のデバイスフィーチャ上に共形層を形成する、請求項9または10に記載の方法。
- 前記デバイスフィーチャ上に共形に形成された前記単層又は準単層のSiO2膜内において、炭素と窒素が2原子パーセント未満である、請求項14に記載の方法。
- ALDによって、SiO 2 膜をシリコンウエハ上に形成する方法であって、
少なくとも1つのシリコンウエハを反応チャンバの内部のサセプタ内に配置することと、
前記少なくとも1つのシリコンウエハを450℃から650℃の範囲内の温度まで加熱することと、
シャワーヘッドを通してケイ素前駆体の連続的な流れを前記反応チャンバ内に導入することであって、前記ケイ素前駆体が、R3Si:NY3を含み、各Rが、水素;Cl、Br、及びIからなる群から選択されたハロゲン化物;直鎖又は分岐鎖C1〜C10アルキル基;直鎖又は分岐鎖C1〜C10アルコキシ基;並びに/或いはC6〜C10アリール基から独立して選択され、各Yが、Cl、Br、及びIからなる群;直鎖又は分岐鎖C1〜C10アルキルシリル基;並びに/或いはC6〜C10アリール基から独立して選択される、導入することと、
酸素プラズマ及び/又は酸素源ガスを前記反応チャンバの少なくとも1つの処理領域内に供給することと、
前記少なくとも1つのシリコンウエハが前記シャワーヘッドの下方を通過するように前記サセプタを回転させることであって、前記ケイ素前駆体の少なくとも一部が前記シリコンウエハの表面上に吸着され、前記酸素プラズマ及び/又は酸素源ガスが、吸着された前記ケイ素前駆体と反応して、SiO2膜を形成する、回転させることと
を含む、方法。 - ALDによって、SiO 2 膜をシリコンウエハ上に形成する方法であって、
少なくとも1つのシリコンウエハを反応チャンバの内部のサセプタ内に配置することと、
前記少なくとも1つのシリコンウエハを400℃から700℃の範囲内の温度まで加熱することと、
シャワーヘッドを通してケイ素前駆体の連続的な流れを前記反応チャンバ内に導入することであって、前記ケイ素前駆体が、式X 3 Si:Lを有する化合物であり、式中、Xは、Cl、Br、I、及びそれらの組み合わせからなる群から選択されたハロゲンであり、Lは1級又は2級アミンである、導入することと、
酸素プラズマ及び/又は酸素源ガスを前記反応チャンバの少なくとも1つの処理領域内に供給することと、
前記少なくとも1つのシリコンウエハが前記シャワーヘッドの下方を通過するように前記サセプタを回転させることであって、前記ケイ素前駆体の少なくとも一部が前記シリコンウエハの表面上に吸着され、前記酸素プラズマ及び/又は酸素源ガスが、吸着された前記ケイ素前駆体と反応して、SiO 2 膜を形成する、回転させることと
を含む、方法。 - UV硬化、熱アニール、ポスト蒸気アニール、及び/又はプラズマ処理のうちの1つ又は複数を含む堆積後処理で前記SiO2膜を続けて処理することをさらに含む、請求項16または17に記載の方法。
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US10170298B2 (en) | 2019-01-01 |
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