KR20060050163A - 실리콘 산화막 형성 방법 및 장치 - Google Patents
실리콘 산화막 형성 방법 및 장치 Download PDFInfo
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- KR20060050163A KR20060050163A KR1020050063650A KR20050063650A KR20060050163A KR 20060050163 A KR20060050163 A KR 20060050163A KR 1020050063650 A KR1020050063650 A KR 1020050063650A KR 20050063650 A KR20050063650 A KR 20050063650A KR 20060050163 A KR20060050163 A KR 20060050163A
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- Prior art keywords
- gas
- processing region
- oxide film
- silicon oxide
- oxidizing gas
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 114
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052814 silicon oxide Inorganic materials 0.000 title claims abstract description 62
- 230000001590 oxidative effect Effects 0.000 claims abstract description 79
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 41
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 230000008569 process Effects 0.000 claims description 67
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000010926 purge Methods 0.000 claims description 8
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 239000010937 tungsten Substances 0.000 claims description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- VOSJXMPCFODQAR-UHFFFAOYSA-N ac1l3fa4 Chemical compound [SiH3]N([SiH3])[SiH3] VOSJXMPCFODQAR-UHFFFAOYSA-N 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- SLLGVCUQYRMELA-UHFFFAOYSA-N chlorosilicon Chemical compound Cl[Si] SLLGVCUQYRMELA-UHFFFAOYSA-N 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910021332 silicide Inorganic materials 0.000 claims description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 claims description 2
- LXEXBJXDGVGRAR-UHFFFAOYSA-N trichloro(trichlorosilyl)silane Chemical compound Cl[Si](Cl)(Cl)[Si](Cl)(Cl)Cl LXEXBJXDGVGRAR-UHFFFAOYSA-N 0.000 claims description 2
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 claims description 2
- SEDZOYHHAIAQIW-UHFFFAOYSA-N trimethylsilyl azide Chemical compound C[Si](C)(C)N=[N+]=[N-] SEDZOYHHAIAQIW-UHFFFAOYSA-N 0.000 claims description 2
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 8
- 230000008021 deposition Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 224
- 239000010408 film Substances 0.000 description 89
- 235000012431 wafers Nutrition 0.000 description 36
- 239000004065 semiconductor Substances 0.000 description 21
- 238000003860 storage Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000011261 inert gas Substances 0.000 description 6
- 238000010030 laminating Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000033116 oxidation-reduction process Effects 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000002052 molecular layer Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 3
- 229920005591 polysilicon Polymers 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910019001 CoSi Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910005883 NiSi Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- IVHJCRXBQPGLOV-UHFFFAOYSA-N azanylidynetungsten Chemical compound [W]#N IVHJCRXBQPGLOV-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- 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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- 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
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
- C03C17/23—Oxides
- C03C17/245—Oxides by deposition from the vapour phase
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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
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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- 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
- C23C16/52—Controlling or regulating the coating process
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- 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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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- 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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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
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- 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
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- 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
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- 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
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
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- H01L21/67005—Apparatus not specifically provided for elsewhere
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- C03C2217/00—Coatings on glass
- C03C2217/20—Materials for coating a single layer on glass
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- C03C2217/213—SiO2
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- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/15—Deposition methods from the vapour phase
- C03C2218/152—Deposition methods from the vapour phase by cvd
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- 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
- H01L21/02211—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 being a silane, e.g. disilane, methylsilane or chlorosilane
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Abstract
Description
Claims (20)
- Si 함유 가스와 산화성 가스와 환원성 가스를 선택적으로 공급 가능한 처리 영역 내에서 금속 표면을 갖는 피처리 기판 상에 CVD에 의해 실리콘 산화막을 형성하는 실리콘 산화막 형성 방법이며,상기 처리 영역에 대한 상기 Si 함유 가스의 공급을 행하는 한편, 상기 처리 영역에 대한 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제1 공정과,상기 처리 영역에 대한 상기 Si 함유 가스, 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제2 공정과,상기 처리 영역에 대한 상기 산화성 가스 및 상기 환원성 가스의 공급을 동시에 행하는 한편, 상기 처리 영역에 대한 상기 Si 함유 가스의 공급을 정지하는 제3 공정과,상기 처리 영역에 대한 상기 Si 함유 가스, 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제4 공정을 교대로 구비하는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 제2 및 제3 공정 사이에서 상기 처리 영역에 대한 상기 환원성 가스의 공급을 행하는 한편, 상기 처리 영역에 대한 상기 Si 함유 가스 및 상기 산화성 가스의 공급을 정지하는 공정을 더 구비하는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 제3 및 제4 공정 사이에서 상기 처리 영역에 대한 상기 환원성 가스의 공급을 행하는 한편, 상기 처리 영역에 대한 상기 Si 함유 가스 및 상기 산화성 가스의 공급을 정지하는 공정을 더 구비하는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 제2 및 제4 공정의 각각은 상기 처리 영역을 배기하는 기간을 구비하는 실리콘 산화막 형성 방법.
- 제4항에 있어서, 상기 제2 및 제4 공정의 각각은 상기 처리 영역에 대한 퍼지 가스의 공급을 행하는 기간을 구비하는 실리콘 산화막 형성 방법.
- 제4항에 있어서, 상기 제1 내지 제4 공정 중, 상기 처리 영역 내의 배기를 계속하는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 제3 공정에 있어서, 상기 환원성 가스의 유량은 상기 산화성 가스의 유량보다도 큰 실리콘 산화막 형성 방법.
- 제7항에 있어서, 상기 제3 공정에 있어서, 상기 환원성 가스의 유량에 대한 상기 산화성 가스의 유량의 비는 1/10 내지 1/500로 설정되는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 금속 표면은 텅스텐, 알루미늄, 니켈, 코발트, 구리, 철 및 이들 금속의 실리사이드로 이루어지는 군에서 선택된 재료로 이루어지는 층의 표면인 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 실리콘 산화막은 게이트 전극 구조의 측벽을 형성하기 위해 상기 피처리 기판 상에 퇴적되는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 제1 및 제3 공정의 각각에 있어서, 상기 처리 영역의 압력은 13.3 ㎩(0.1 Torr) 내지 66500 ㎩(500 Torr) 범위 내로 설정되는 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 Si 함유 가스는 디클로로실란(DCS), 모노실란[SiH4], 디실란[Si2H6], 헥사클로로디실란[Si2Cl6](HCD), 헥사메틸디실라잔(HMDS), 테트라클로로실란[SiHCl3](TCS), 디실릴아민(DSA), 트리실릴아민(TSA), 비스터셜부틸아미노실란(BTBAS), 트리메틸실란[(CH3)3SiH], 트리메틸실릴라자이드[(CH3)3SiN3], [SiF4], [SiCl3F], [SiI4], [Si2F6]로 이루어지는 군에서 선택된 하나 이상의 가스인 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 산화성 가스는 N2O, H2O, O2, O3, O*(활성종), NO, NO2, CO2, CO로 이루어지는 군에서 선택된 하나 이상의 가스인 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 환원성 가스는 H2, NH3로 이루어지는 군에서 선택된 하나 이상의 가스인 실리콘 산화막 형성 방법.
- 제1항에 있어서, 상기 제1 내지 제4 공정을 복수회 반복하여 소정 두께의 제1 실리콘 산화막을 형성한 후, 상기 처리 영역에 대한 Si 함유 가스 및 산화성 가스의 공급을 행하면서, CVD에 의해 상기 제1 실리콘 산화막 상에 상기 소정의 두께보다도 두꺼운 제2 실리콘 산화막을 형성하는 공정을 더 구비하는 실리콘 산화막 형성 방법.
- 제15항에 있어서, 상기 제2 실리콘 산화막을 형성하기 위해 사용되는 상기 Si 함유 가스 및 상기 산화성 가스는 상기 제1 실리콘 산화막을 형성하기 위해 사용되는 상기 Si 함유 가스 및 상기 산화성 가스와 각각 동일한 가스인 실리콘 산화막 형성 방법.
- 금속 표면을 갖는 피처리 기판 상에 CVD에 의해 실리콘 산화막을 형성하는 실리콘 산화막 형성 장치이며,상기 피처리 기판을 수용하는 처리 영역을 갖는 처리 용기와,상기 처리 영역에 대해 Si 함유 가스를 공급하는 Si 함유 가스 공급계와,상기 처리 영역에 대해 산화성 가스를 공급하는 산화성 가스 공급계와,상기 처리 영역에 대해 환원성 가스를 공급하는 환원성 가스 공급계와,상기 장치의 동작을 제어하는 제어부를 구비하고,상기 제어부는 상기 금속 표면 상에 실리콘 산화막을 형성하기 위해,상기 처리 영역에 대한 상기 Si 함유 가스의 공급을 행하는 한편, 상기 처리 영역에 대한 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제1 공정과,상기 처리 영역에 대한 상기 Si 함유 가스, 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제2 공정과,상기 처리 영역에 대한 상기 산화성 가스 및 상기 환원성 가스의 공급을 동시에 행하는 한편, 상기 처리 영역에 대한 상기 Si 함유 가스의 공급을 정지하는 제3 공정과,상기 처리 영역에 대한 상기 Si 함유 가스, 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제4 공정을 교대로 실행하는 실리콘 산화막 형성 장치.
- 제17항에 있어서, 상기 제어부는 상기 제1 내지 제4 공정을 복수회 반복하여 소정 두께의 제1 실리콘 산화막을 형성한 후, 상기 처리 영역에 대한 Si 함유 가스 및 산화성 가스의 공급을 행하면서 CVD에 의해 상기 제1 실리콘 산화막 상에 상기 소정의 두께보다도 두꺼운 제2 실리콘 산화막을 형성하는 공정을 더 실행하는 실리콘 산화막 형성 장치.
- 제17항에 있어서, 상기 처리 영역은 간격을 두고 적층된 복수의 피처리 기판을 수납하도록 구성되는 실리콘 산화막 형성 장치.
- 프로세서 상에서 실행하기 위한 프로그램 지령을 포함하는 컴퓨터로 판독 가능한 매체이며,상기 프로그램 지령은 프로세서에 의해 실행될 때, Si 함유 가스와 산화성 가스와 환원성 가스를 선택적으로 공급 가능한 처리 영역 내에서 금속 표면을 갖는 피처리 기판 상에 CVD에 의해 실리콘 산화막을 형성하기 위해, 처리 장치에,상기 처리 영역에 대한 상기 Si 함유 가스의 공급을 행하는 한편, 상기 처리 영역에 대한 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제1 공정과,상기 처리 영역에 대한 상기 Si 함유 가스, 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제2 공정과,상기 처리 영역에 대한 상기 산화성 가스 및 상기 환원성 가스의 공급을 동시에 행하는 한편, 상기 처리 영역에 대한 상기 Si 함유 가스의 공급을 정지하는 제3 공정과,상기 처리 영역에 대한 상기 Si 함유 가스, 상기 산화성 가스 및 상기 환원성 가스의 공급을 정지하는 제4 공정을 교대로 실행시키는 컴퓨터로 판독 가능한 매체.
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KR100861851B1 (ko) | 2008-10-07 |
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US7651730B2 (en) | 2010-01-26 |
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JP4595702B2 (ja) | 2010-12-08 |
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