KR100903782B1 - 질화갈륨계 반도체 적층구조, 그 제조방법, 및 이적층구조를 각각 이용한 화합물 반도체와 발광소자 - Google Patents
질화갈륨계 반도체 적층구조, 그 제조방법, 및 이적층구조를 각각 이용한 화합물 반도체와 발광소자 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 127
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052733 gallium Inorganic materials 0.000 title claims abstract description 21
- 150000001875 compounds Chemical class 0.000 title claims description 12
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- 239000013078 crystal Substances 0.000 claims abstract description 147
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims abstract description 121
- 229910002601 GaN Inorganic materials 0.000 claims abstract description 105
- 230000008021 deposition Effects 0.000 claims abstract description 91
- 239000000758 substrate Substances 0.000 claims abstract description 58
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 50
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- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 claims description 2
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- MCULRUJILOGHCJ-UHFFFAOYSA-N triisobutylaluminium Chemical compound CC(C)C[Al](CC(C)C)CC(C)C MCULRUJILOGHCJ-UHFFFAOYSA-N 0.000 description 2
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- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
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- 230000000116 mitigating effect Effects 0.000 description 1
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- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- RGGPNXQUMRMPRA-UHFFFAOYSA-N triethylgallium Chemical compound CC[Ga](CC)CC RGGPNXQUMRMPRA-UHFFFAOYSA-N 0.000 description 1
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- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
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Abstract
Description
Claims (10)
- 사파이어 기판의 (0001)(c)면과 접하여 있는 접합 영역 부근에 존재하는 단결정층을 결정성장된 상태에서 포함하는, Ⅲ족 질화물 재료로 구성된 저온에서 성장시킨 저온증착 완충층; 및상기 저온증착 완충층상에 형성된 질화갈륨(GaN)계 반도체층으로 구성된 활성층을 포함하는 질화갈륨계 반도체 적층구조에 있어서:상기 결정성장된 상태에서 저온증착 완충층에 포함되는 단결정층은 AlXGaYN 결정의 [2.-1.-1.0]방향이 사파이어 기판의 (0001)저면의 [2.-1.-1.0]방향을 따라 배향하도록, 갈륨 및 알루미늄을 함유하는 육방정계 AlXGaYN(0.5<X≤1, X+Y=1)결정으로 구성되어 있고, 상기 저온증착 완충층과 상기 활성층의 사이에, 인듐 또는 알루미늄을 함유하는 GaN계 Ⅲ족 질화물 반도체로 구성된 박막층을 포함하는 초격자 구조층이 설치되어 있는 것을 특징으로 하는 질화갈륨계 반도체 적층구조.
- 삭제
- 제1항에 있어서, 상기 인듐 또는 알루미늄을 함유하는 GaN계 Ⅲ족 질화물 반도체로 구성된 박막층은 2nm~100nm의 층두께를 갖는 것을 특징으로 하는 질화갈륨계 반도체 적층구조.
- 삭제
- 제1항에 있어서, 상기 인듐 또는 알루미늄을 함유하는 GaN계 Ⅲ족 질화물 반도체로 구성된 박막층 또는 상기 박막층을 포함하는 초격자 구조층은 상기 활성층과 상기 저온증착 완충층상에 형성된 질화 알루미늄 갈륨 인듐(AlαGaβIn1-α-βN :0≤α,β≤1, 0≤α+β≤1)층 사이에 형성된 것을 특징으로 하는 질화갈륨계 반도체 적층구조.
- 제1항 또는 제3항에 있어서, 상기 인듐 또는 알루미늄을 함유하는 GaN계 Ⅲ족 질화물 반도체로 구성된 박막층의 배향은 상기 저온증착 완충층에 포함되어 있는 단결정층의 배향과 일치하는 것을 특징으로 하는 질화갈륨계 반도체 적층구조.
- 사파이어 기판의 (0001)(c)면상에, 기판과 접하고 있는 접합 영역으로서의 육방정계 단결정층으로 구성된 AlXGaYN 저온증착 완충층을 성장온도 250℃~500℃에서 형성하여, 결정성장된 상태에서 저온증착 완충층에 포함된 단결정층을 [2.-1.-1.0] 방향이 사파이어 기판의 (0001)저면의 [2.-1.-1.0] 방향을 따라 배향된 갈륨(Ga) 및 알루미늄(Al)을 함유하는 육방정계 AlXGaYN (0.5<X≤ 1, X+Y=1)결정으로 구성하는 단계; 및,이어서, 상기 완충층상에 인듐 또는 알루미늄을 함유하는 GaN계 Ⅲ족 질화물 반도체로 구성된 박막층을 포함하는 초격자 구조층을 형성하고, 상기 초격자 구조층상에 활성층으로서의 질화갈륨(GaN)계 반도체층을 형성하는 단계를 포함하는 것을 특징으로 하는 질화갈륨계 반도체 적층구조의 제조방법.
- 제1항에 기재된 적층구조로부터 제조된 화합물 반도체 소자.
- 제1항에 기재된 적층구조로부터 제조된 발광소자.
- 삭제
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2004157132 | 2004-05-27 | ||
JPJP-P-2004-00157132 | 2004-05-27 | ||
PCT/JP2005/010012 WO2005117078A1 (en) | 2004-05-27 | 2005-05-25 | Gallium nitride-based semiconductor stacked structure, production method thereof, and compound semiconductor and light-emitting device each using the stacked structure |
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KR20070034000A KR20070034000A (ko) | 2007-03-27 |
KR100903782B1 true KR100903782B1 (ko) | 2009-06-19 |
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US (1) | US7772599B2 (ko) |
EP (1) | EP1756854A4 (ko) |
JP (1) | JP4652888B2 (ko) |
KR (1) | KR100903782B1 (ko) |
CN (1) | CN100524625C (ko) |
TW (1) | TWI289941B (ko) |
WO (1) | WO2005117078A1 (ko) |
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JP2007214384A (ja) * | 2006-02-09 | 2007-08-23 | Rohm Co Ltd | 窒化物半導体素子 |
US9012253B2 (en) * | 2009-12-16 | 2015-04-21 | Micron Technology, Inc. | Gallium nitride wafer substrate for solid state lighting devices, and associated systems and methods |
JP5251893B2 (ja) * | 2010-01-21 | 2013-07-31 | 日立電線株式会社 | 導電性iii族窒化物結晶の製造方法及び導電性iii族窒化物基板の製造方法 |
JP4865047B2 (ja) | 2010-02-24 | 2012-02-01 | 株式会社東芝 | 結晶成長方法 |
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KR20070034000A (ko) | 2007-03-27 |
US20080067522A1 (en) | 2008-03-20 |
TWI289941B (en) | 2007-11-11 |
US7772599B2 (en) | 2010-08-10 |
JP2006013467A (ja) | 2006-01-12 |
CN1989595A (zh) | 2007-06-27 |
JP4652888B2 (ja) | 2011-03-16 |
TW200603445A (en) | 2006-01-16 |
WO2005117078A1 (en) | 2005-12-08 |
EP1756854A1 (en) | 2007-02-28 |
CN100524625C (zh) | 2009-08-05 |
EP1756854A4 (en) | 2010-08-25 |
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