KR102307233B1 - 금속 산화물 후처리를 위한 방법들 - Google Patents
금속 산화물 후처리를 위한 방법들 Download PDFInfo
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- KR102307233B1 KR102307233B1 KR1020207005814A KR20207005814A KR102307233B1 KR 102307233 B1 KR102307233 B1 KR 102307233B1 KR 1020207005814 A KR1020207005814 A KR 1020207005814A KR 20207005814 A KR20207005814 A KR 20207005814A KR 102307233 B1 KR102307233 B1 KR 102307233B1
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- plasma
- oxide film
- metal oxide
- slot
- water
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- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 36
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 36
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- 239000007800 oxidant agent Substances 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 95
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 24
- 229910052760 oxygen Inorganic materials 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
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- 239000002243 precursor Substances 0.000 claims description 18
- 239000001307 helium Substances 0.000 claims description 17
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 17
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 239000000376 reactant Substances 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
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- 150000002500 ions Chemical class 0.000 claims description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
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- 238000000231 atomic layer deposition Methods 0.000 abstract description 10
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- 238000005229 chemical vapour deposition Methods 0.000 description 5
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
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- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- -1 aluminum halide Chemical class 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 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
- 239000000969 carrier Substances 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
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- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001900 extreme ultraviolet lithography Methods 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000033444 hydroxylation Effects 0.000 description 1
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- 229910001092 metal group alloy Inorganic materials 0.000 description 1
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- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical class [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 238000001039 wet etching Methods 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
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- 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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- 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
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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
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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
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- 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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- 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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Abstract
Description
도 1은 본 개시내용의 하나 이상의 실시예에 따른 처리 플랫폼의 개략도를 도시하고;
도 2는 본 개시내용의 하나 이상의 실시예에 따른 배치 처리 챔버의 단면도를 도시하고;
도 3은 본 개시내용의 하나 이상의 실시예에 따른 배치 처리 챔버의 부분 사시도를 도시하고;
도 4는 본 개시내용의 하나 이상의 실시예에 따른 배치 처리 챔버의 개략도를 도시하고;
도 5는 본 개시내용의 하나 이상의 실시예에 따른 배치 처리 챔버에서 사용하기 위한 쐐기 형상의 가스 분배 조립체의 일부의 개략도를 도시하고;
도 6은 본 개시내용의 하나 이상의 실시예에 따른 배치 처리 챔버의 개략도를 도시하고;
도 7은 본 개시내용의 하나 이상의 실시예에 따른 방법의 개략도를 도시한다.
첨부 도면들에서, 유사한 구성요소들 및/또는 피쳐들은 동일한 참조 라벨을 가질 수 있다. 또한, 동일한 유형의 다양한 구성요소들은, 유사한 구성요소들을 구별하는 대시 및 제2 라벨을 참조 라벨 뒤에 둠으로써 구별될 수 있다. 제1 참조 라벨만이 본 명세서에 사용되는 경우, 본 설명은, 제2 참조 라벨에 관계없이, 동일한 제1 참조 라벨을 갖는 유사한 구성요소들 중 임의의 구성요소에 적용가능하다.
Claims (15)
- 방법으로서,
산화제로서 물을 사용하여 ALD에 의해 기판 표면 상에 금속 산화물 막을 형성하는 단계; 및
상기 금속 산화물 막의 습식 식각 속도를 낮추기 위해, 상기 금속 산화물 막을, He, H2 또는 O2 중 하나 이상을 포함하는 분리된 플라즈마에 노출시키는 단계를 포함하고,
상기 분리된 플라즈마는 지향성 플라즈마이며,
상기 지향성 플라즈마는, 에지들이 있는 슬롯을 갖는 플라즈마 조립체에 형성된 원격 플라즈마이고, 상기 슬롯을 통해 상기 플라즈마가 유동하고, 상기 플라즈마는 상기 슬롯의 다른 부분들보다 상기 슬롯의 에지들에 인접하여 더 높은 이온 에너지 및 농도를 갖는, 방법. - 제1항에 있어서,
미리 결정된 두께의 막을 증착시키기 위해, 상기 금속 산화물 막을 반복적으로 형성하고 상기 금속 산화물 막을 상기 분리된 플라즈마에 순차적으로 노출시키는 단계를 더 포함하는, 방법. - 제1항에 있어서,
상기 금속 산화물 막은 산화알루미늄을 포함하는, 방법. - 제3항에 있어서,
상기 산화알루미늄 막을 형성하는 단계는 상기 기판 표면을 알루미늄 전구체 및 산소 반응물에 순차적으로 노출시키는 것을 포함하는, 방법. - 제4항에 있어서,
상기 알루미늄 전구체는 트리메틸알루미늄을 포함하고, 상기 산소 반응물은 물을 포함하는, 방법. - 삭제
- 삭제
- 제1항에 있어서,
상기 분리된 플라즈마는 본질적으로 헬륨 또는 헬륨과 산소의 조합으로 구성되는, 방법. - 제1항에 있어서,
상기 금속 산화물 막은, 실온의 1100:1 물:HF에서 또는 70 ℃의 1:1:50 과산화물:수산화암모늄:물의 혼합물에서 50 Å/분 미만의 습식 식각 속도를 갖는, 방법. - 방법으로서,
알루미늄 전구체 및 물에 대한 순차적 노출에 의해 기판 표면 상에 산화알루미늄 막을 형성하는 단계; 및
산소와 헬륨의 혼합물을 포함하는 분리된 플라즈마에 상기 산화알루미늄 막을 노출시키는 단계 ― 상기 분리된 플라즈마는 공급원 전력을 갖고 바이어스를 갖지 않음 ― 를 포함하고,
상기 분리된 플라즈마는, 에지들이 있는 슬롯을 갖는 플라즈마 조립체에 형성된 원격 플라즈마이고, 상기 슬롯을 통해 상기 플라즈마가 유동하고, 상기 플라즈마는 상기 슬롯의 다른 부분들보다 상기 슬롯의 에지들에 인접하여 더 높은 이온 에너지 및 농도를 갖는, 방법. - 제10항에 있어서,
상기 알루미늄 전구체는 트리메틸알루미늄을 포함하고, 상기 분리된 플라즈마는 본질적으로 헬륨 및 산소로 구성되는, 방법. - 제11항에 있어서,
상기 산화알루미늄 막은, 실온의 1100:1 물:HF에서 30 Å/분 미만의 습식 식각 속도를 갖는, 방법. - 방법으로서,
알루미늄 전구체 및 물에 대한 순차적 노출에 의해 기판 표면 상에 산화알루미늄 막을 형성하는 단계; 및
본질적으로 헬륨으로 구성되는 분리된 플라즈마에 상기 산화알루미늄 막을 노출시키는 단계 ― 상기 분리된 플라즈마는 공급원 전력 및 바이어스 전력을 가짐 ― 를 포함하고,
상기 분리된 플라즈마는, 에지들이 있는 슬롯을 갖는 플라즈마 조립체에 형성된 원격 플라즈마이고, 상기 슬롯을 통해 상기 플라즈마가 유동하고, 상기 플라즈마는 상기 슬롯의 다른 부분들보다 상기 슬롯의 에지들에 인접하여 더 높은 이온 에너지 및 농도를 갖는, 방법. - 삭제
- 제13항에 있어서,
상기 산화알루미늄 막은, 실온의 1100:1 물:HF에서 20 Å/분 미만 또는 70 ℃의 1:1:50 과산화물:수산화암모늄:물의 혼합물에서 75 Å/분 미만의 습식 식각 속도를 갖는, 방법.
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