KR20090127067A - 반도체 공정에서 사용하기 위한 아세틸렌 기체 정제 방법 - Google Patents
반도체 공정에서 사용하기 위한 아세틸렌 기체 정제 방법 Download PDFInfo
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- KR20090127067A KR20090127067A KR1020090048358A KR20090048358A KR20090127067A KR 20090127067 A KR20090127067 A KR 20090127067A KR 1020090048358 A KR1020090048358 A KR 1020090048358A KR 20090048358 A KR20090048358 A KR 20090048358A KR 20090127067 A KR20090127067 A KR 20090127067A
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- acetylene
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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
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
- H01L21/3146—Carbon layers, e.g. diamond-like layers
-
- 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
- C23C16/26—Deposition of carbon only
-
- 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
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
- C23C16/4402—Reduction of impurities in the source gas
-
- 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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
-
- 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
- H01L21/02115—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 being carbon, e.g. alpha-C, diamond or hydrogen doped carbon
-
- 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]
Abstract
Description
파라미터 | 전형적인 공정 범위 |
C2H2 유량 | 3,000 - 10,000 sccm |
N2 유량 | 500 - 5,000 sccm |
He 유량 | 300 - 3,000 sccm |
주파수에서 LF 출력 | 50 - 400 kHz에서 200 - 1000 W |
주파수에서 HF 출력 | 2 - 60 MHz에서 500 - 2,000 W |
압력 | 2 - 15 Torr |
온도 | 150 - 600℃ |
Claims (27)
- 전자 디바이스(electronic device) 제작 동안 반도체 기판에 고 탄소함량 물질의 층을 형성하는 데 사용하기에 앞서 아세틸렌 기체 스트림(stream)을 처리하는 방법에 있어서, 다음 단계를 포함하는 방법:(a) 아세틸렌 기체 스트림을 고 탄소함량 물질의 층을 형성하기 위한 증착 챔버의 상류에 배치된 전처리 모듈(pre-processing module)의 유입구에 전달하는 단계, 아세틸렌 기체 스트림은 아세틸렌이 용해될 수 있는 저장용매를 포함하는 아세틸렌 공급원으로부터 제공됨;(b) 전처리 모듈에서 아세틸렌 기체 스트림으로부터 저장용매를 응축시켜, 고 탄소함량 물질의 층이 반도체 기판에 증착되는 시간에 걸쳐 실질적으로 일정한 저장용매 농도를 가지는, 아세틸렌 기체 스트림의 감소된 저장용매 농도를 제공하는 단계, 여기서 저장용매 농도가 감소된 아세틸렌 기체 스트림이 전처리 모듈을 나갈 때, 실질적으로 일정한 저장용매 농도는 저장용매 농도가 감소된 아세틸렌 기체 스트림에서 약 0.4 부피% 이하임; 및(c) 저장용매 농도가 감소된 아세틸렌 기체 스트림을 전처리 모듈에서 증착 챔버로 전달하는 단계.
- 제1항에 있어서, 고 탄소함량 물질의 층이 비정질 탄소를 포함하는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 고 탄소함량 물질의 층이 반도체 기판에 애쉬어블 하드 마스크(ashable hard mask)를 형성하는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 아세틸렌 기체 스트림을 전처리 모듈의 유입구로 전달하는 단계가 15 psig보다 낮은 압력에서 수행되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 아세틸렌이 용해될 수 있는 저장용매가 아세톤인 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 전처리 모듈이 열교환기와 액체 트랩(trap)으로 이루어지는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제6항에 있어서, 열교환기가 냉각제(coolant)로 채워진 배스(bath)에 잠기는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제7항에 있어서, 냉각제가 약 -35℃ 이하의 온도로 유지되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제6항에 있어서, 열교환기 표면적이 100 제곱인치 내지 1000 제곱인치인 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제6항에 있어서, 액체 트랩이 아세틸렌 기체 스트림이 통과할 다수의 구불구불한 통로의 삽입물(insert)를 포함하는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 고 탄소함량 물질의 층이 반도체 기판에 증착되는 동안 아세틸렌 기체 스트림이 20 L/min의 유량을 가지는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 실질적으로 일정한 저장용매의 농도가 저장용매 농도가 감소된 아세틸렌 기체 스트림에서 약 0.3 부피% 이하인 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 저장용매 농도가 감소된 아세틸렌 기체 스트림을 전처리 모듈에서 증착 챔버로 전달하기 전에, 저장용매 농도가 감소된 아세틸렌 기체 스트림을 가열하는 것을 추가로 포함하는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제13항에 있어서, 저장용매 농도가 감소된 아세틸렌 기체 스트림이 약 10 내지 40℃로 가열되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 아세틸렌 공급원(source)이 용기를 포함하고, 용기의 약 50% 이하의 아세틸렌이 전처리 모듈의 유입구로 전달되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제1항에 있어서, 아세틸렌 공급원이 용기를 포함하고, 용기의 약 75% 이하의 아세틸렌이 전처리 모듈의 유입구로 전달되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제16항에 있어서, 반도체 기판에 증착되는 고 탄소함량 물질 층의 증착속도가 약 2% 미만에서 변하고, 여기서 증착속도는 한 용기로부터 전달되는 아세틸렌 기체 스트림에 대하여 측정되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제16항에 있어서, 반도체 기판에 증착되는 고 탄소함량 물질 층의 증착속도가 약 1% 미만에서 변하고, 여기서 증착속도는 한 용기로부터 전달되는 아세틸렌 기체 스트림에 대하여 측정되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방 법.
- 제1항에 있어서, 고 탄소함량 물질의 층이 플라즈마 화학기상증착(PECVD)을 사용하여 반도체 기판에 증착되는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제18항에 있어서, PECVD가 이중 주파수(dual frequency) 플라즈마 발생을 사용하는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제19항에 있어서, PECVD가 저주파(LF) 플라즈마 발생기와 고주파(HF) 플라즈마 발생기를 포함하는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 제5항에 있어서, 전처리 모듈이 100 제곱인치 내지 1000 제곱인치의 표면적을 가지고, 배스에 잠긴 열교환기 및 아세틸렌 기체 스트림이 통과할 다수의 구불구불한 통로를 가지는 삽입물을 포함하는 액체 트랩을 가지는 것을 특징으로 하는 아세틸렌 기체 스트림 처리 방법.
- 전자 디바이스 제작 동안 반도체 기판에 고 탄소함량 물질의 층을 형성하는 데 사용하기에 앞서 아세틸렌 기체 스트림을 처리하기 위한 전처리 모듈에 있어서, 다음 장치를 포함하는 전처리 모듈:(a) 아세틸렌 공급원에 연결하기에 적합한 커넥터를 포함하는 유입구;(b) 열교환기;(c) 아세틸렌 기체 스트림으로부터 응축된 액체를 축적하도록 배열된 트랩; 및(d) 반도체 기판에 고 탄소함량 물질의 층을 형성하기 위한 증착 챔버에 적합한 커넥터를 포함하는 유출구.
- 제22항에 있어서, 열교환기가 제1코일 모듈과 제2코일 모듈을 포함하고, 유입구에서 온 아세틸렌 기체 스트림이 제1코일 모듈로 들어가 트랩을 통과하고 유출구에 부착된 제2코일 모듈에 들어가는 것을 특징으로 하는 전처리 모듈.
- 제22항에 있어서, 트랩이 아세틸렌 기체 스트림이 통과할 다수의 구불구불한 통로를 포함하는 것을 특징으로 하는 전처리 모듈.
- 제22항에 있어서, 전처리 모듈이 배스를 추가로 포함하고, 열교환기와 트랩이 배스 안에 위치함을 특징으로 하는 전처리 모듈.
- 제22항에 있어서, 열교환기가 100 제곱인치 내지 1000 제곱인치의 표면적을 가지는 것을 특징으로 하는 전처리 모듈.
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-
2008
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2009
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