KR101353334B1 - 갈륨 질화물 증착에서의 반응 가스 감소 - Google Patents
갈륨 질화물 증착에서의 반응 가스 감소 Download PDFInfo
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- KR101353334B1 KR101353334B1 KR1020097012936A KR20097012936A KR101353334B1 KR 101353334 B1 KR101353334 B1 KR 101353334B1 KR 1020097012936 A KR1020097012936 A KR 1020097012936A KR 20097012936 A KR20097012936 A KR 20097012936A KR 101353334 B1 KR101353334 B1 KR 101353334B1
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- reaction chamber
- gacl
- reactor
- exhaust gas
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/14—Feed and outlet means for the gases; Modifying the flow of the reactive gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/16—Layered products comprising a layer of metal next to a particulate layer
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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
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/08—Reaction chambers; Selection of materials therefor
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/16—Controlling or regulating
- C30B25/165—Controlling or regulating the flow of the reactive gases
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
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- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/40—AIIIBV compounds wherein A is B, Al, Ga, In or Tl and B is N, P, As, Sb or Bi
- C30B29/403—AIII-nitrides
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Vapour Deposition (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
Description
Claims (24)
- 반응 챔버 안에서, 하나의 반응물로 사용되는 일정 양의 기상(gaseous) 3A족 선구체(precursor)를 또 다른 반응물로 사용되는 일정 양의 기상 5A족 성분과 반응시켜 반도체 물질을 형성하는 단계;미반응된 3A족 선구체, 미반응된 5A족 성분, 및 반응 부산물을 포함하는 배기 가스(exhaust gas)를 제거하는 단계; 및상기 배기 가스의 응축의 감소시키고 상기 반도체 물질의 제조를 향상시키기에 충분한 온도까지 상기 배기 가스를 가열하는 단계;를 포함하는 것을 특징으로 하는 단결정 3A-5A족 반도체 물질의 에피택셜 증착을 위한 방법.
- 제1항에 있어서,상기 배기 가스는 응축을 충분히 회피하도록 가열되어 상기 반도체 물질의 지속적인 대량생산을 용이하게 하는 것을 특징으로 하는 방법.
- 제2항에 있어서,상기 기상 3A족 선구체는 단위 시간당 50g의 3A족 원소의 질량유량으로 적어도 48시간 동안 연속적으로 제공되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 배기 가스는 상기 반응 챔버에서 펌핑되어 제거되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 배기 가스를 열분해하여 고형 3A족 산화물을 형성하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제5항에 있어서,상기 3A족 선구체의 재활용 및 형성을 위하여 상기 고형 3A족 산화물을 재생하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제6항에 있어서,상기 열분해된 배기 가스를 상기 3A족 산화물의 재생을 촉진하는 용액과 접촉시키는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 기상 5A족 성분은 질소를 포함하는 성분이어서 단결정 3A족 질화물이 제공되는 것을 특징으로 하는 방법.
- 제8항에 있어서,상기 질소를 포함하는 성분은, 암모니아 또는 질소 이온 또는 질소 가스의 플라즈마 활성화에 의해 생성되는 래디컬과 같이 질소를 포함하는 가스인 것을 특징으로 하는 방법.
- 제8항에 있어서,상기 기상 3A족 선구체는 갈륨 화합물이어서 단결정 갈륨 질화물 반도체 물질이 제공되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 기상 3A족 선구체는 갈륨 화합물이어서 단결정 갈륨 5A족 반도체 물질이 제공되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 3A족 선구체나 반응 부산물이 증착되는 것을 감소 내지 방지하여 메인터넌스가 요구되는 시점 전까지 긴 작동 시간을 제공하도록 상기 반응 챔버를 냉각하는 단계를 더 포함하는 것을 특징으로 하는 방법.
- 제12항에 있어서,상기 반응 챔버 주위 바깥에서 공기를 순환시킴으로서 상기 반응 챔버가 냉각되는 것을 특징으로 하는 방법.
- 하나의 반응물로 사용되는 3A족 선구체 소스(source);또 다른 반응물로 사용되는 5A족 성분 소스(source);반응을 위하여 상기 반응물들을 수용하여, 배기 가스를 생성하면서 반도체 물질을 형성시키는 반응 챔버; 및상기 배기 가스의 응축의 감소시키고 상기 반도체 물질의 제조를 향상시키기에 충분한 온도까지 상기 배기 가스를 가열하는 가열 장치;를 포함하는 것을 특징으로 하는 단결정 3A-5A족 반도체 물질의 에피택셜 증착을 위한 시스템.
- 제14항에 있어서,상기 반응 챔버는, 미반응된 3A족 선구체, 미반응된 5A족 성분, 및 반응 부산물을 포함하는 상기 배기 가스를 상기 반응 챔버에서 제거하기 위한 출구 및 배기 도관을 포함하고,상기 가열 장치는, 상기 출구 및 배기 도관을 상기 배기 가스의 응축을 방지하게 충분한 온도까지 가열하도록 배치되는 것을 특징으로 하는 시스템.
- 제15항에 있어서,상기 배기 가스를 상기 반응 챔버에서 제거하는 제거 장치를 더 포함하는 것을 특징으로 하는 시스템.
- 제16항에 있어서,상기 제거 장치는 상기 배기 도관과 연관되어 작동되는 펌프를 포함하는 것을 특징으로 하는 시스템.
- 제14항에 있어서,상기 반응 챔버의 온도를 제어하기 위한 외부 장치를 더 포함하는 것을 특징으로 하는 시스템.
- 제18항에 있어서,상기 반응 챔버는 일 이상의 벽을 포함하고,상기 외부 장치는 일 이상의 팬(fan)과 연관되어 작동하는 구역을 포함하여, 공기를 상기 구역에서 순환시켜 상기 반응 챔버의 상기 벽을 온도를 떨어뜨려 상기 3A족 선구체 또는 반응 부산물의 상기 벽에 증착되는 것을 감소 내지 방지하고 메인터넌스가 요구되는 시점 전까지 긴 작동 시간을 제공하는 것을 특징으로 하는 시스템.
- 제14항에 있어서,상기 배기 가스를 열분해하여 고형 3A족 산화물을 형성하는 열분해 챔버를 더 포함하는 것을 특징으로 하는 시스템.
- 제20항에 있어서,상기 고형 3A족 산화물의 재생을 촉진하는 용액에 상기 열분해된 배기 가스를 접촉시키기 위한 스크러버(scrubber)를 더 포함하는 것을 특징으로 하는 시스템.
- 제21항에 있어서,추가적인 3A족 선구체의 재활용 및 형성을 위하여 상기 고형 3A족 산화물을 회수하는 필터를 더 포함하는 것을 특징으로 하는 시스템.
- 제14항에 있어서,상기 단결정 반도체 물질이 증착되는 일 이상의 기판을 유지하는 회전가능한 지지부를 더 포함하고, 상기 반응 챔버는 상기 반응물을 제어된 방식으로 상기 반응 챔버로 도입시키는 입구(entry aperture)를 포함하여 상기 단결정 반도체 물질이 상기 기판에 형성되고 증착되는 것을 촉진하는 것을 특징으로 하는 시스템.
- 제14항에 있어서,상기 반응 챔버는 석영으로 만들어지는 것을 특징으로 하는 시스템.
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US86692806P | 2006-11-22 | 2006-11-22 | |
US60/866,928 | 2006-11-22 | ||
US94283207P | 2007-06-08 | 2007-06-08 | |
US60/942,832 | 2007-06-08 | ||
PCT/US2007/084839 WO2008127425A2 (en) | 2006-11-22 | 2007-11-15 | Abatement of reaction gases from gallium nitride deposition |
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EP (1) | EP2083935B1 (ko) |
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KR (1) | KR101353334B1 (ko) |
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ATE546570T1 (de) | 2012-03-15 |
US8585820B2 (en) | 2013-11-19 |
EP2083935A4 (en) | 2010-07-28 |
JP5575482B2 (ja) | 2014-08-20 |
US20090283029A1 (en) | 2009-11-19 |
KR20090082509A (ko) | 2009-07-30 |
EP2083935B1 (en) | 2012-02-22 |
US9038565B2 (en) | 2015-05-26 |
EP2083935A2 (en) | 2009-08-05 |
WO2008127425A3 (en) | 2008-12-18 |
US20140041584A1 (en) | 2014-02-13 |
JP2010510165A (ja) | 2010-04-02 |
WO2008127425A2 (en) | 2008-10-23 |
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