KR20060123297A - 고품질 호모에피탁시용 미사면 질화갈륨 - Google Patents
고품질 호모에피탁시용 미사면 질화갈륨 Download PDFInfo
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- KR20060123297A KR20060123297A KR1020067011417A KR20067011417A KR20060123297A KR 20060123297 A KR20060123297 A KR 20060123297A KR 1020067011417 A KR1020067011417 A KR 1020067011417A KR 20067011417 A KR20067011417 A KR 20067011417A KR 20060123297 A KR20060123297 A KR 20060123297A
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- 239000000758 substrate Substances 0.000 title claims abstract description 88
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical group [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 title claims description 278
- 229910002601 GaN Inorganic materials 0.000 title description 167
- 238000001657 homoepitaxy Methods 0.000 title 1
- 230000012010 growth Effects 0.000 claims abstract description 81
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 31
- 239000010980 sapphire Substances 0.000 claims abstract description 31
- 150000004767 nitrides Chemical class 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 230000005693 optoelectronics Effects 0.000 claims abstract description 16
- 238000004377 microelectronic Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 24
- 238000000151 deposition Methods 0.000 claims description 21
- 239000013078 crystal Substances 0.000 claims description 18
- 229910002704 AlGaN Inorganic materials 0.000 claims description 11
- 229910052733 gallium Inorganic materials 0.000 claims description 11
- 238000005498 polishing Methods 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 229910052738 indium Inorganic materials 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 abstract description 10
- 235000012431 wafers Nutrition 0.000 description 78
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 20
- 238000000089 atomic force micrograph Methods 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
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- 230000003287 optical effect Effects 0.000 description 7
- 238000001152 differential interference contrast microscopy Methods 0.000 description 5
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 4
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- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
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- 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 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
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- 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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- 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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Abstract
Description
Claims (39)
- 제1항에 있어서, 상기 GaN(0001) 표면은 약 0.2 ~ 4도 범위의 오프컷 각도로 오프컷 된 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 GaN(0001) 표면은 약 3 ~ 8도 범위의 오프컷 각도로 오프컷 된 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 GaN(0001) 표면은 약 2.5 ~ 8도 범위의 오프컷 각도로 오프컷 된 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 표면은 50 x 50 ㎛2 AFM 스캔에 의해 측정된 0.9 nm 이하의 RMS 거칠기를 가지는 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 표면은 50 x 50 ㎛2 AFM 스캔에 의해 측정된 0.5 nm 이하의 RMS 거칠기를 가지는 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 표면은 1E6 cm-2 이하의 전위 밀도를 가지는 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 표면은 5E5 cm-2 이하의 전위 밀도를 가지는 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 GaN(0001)표면은 약 2.5 ~ 10도의 범위로 오프컷 각도로 오프컷 된 것을 특징으로 하는 GaN 기판.
- 제1항에 있어서, 상기 GaN(0001)표면은 약 5 ~ 8도의 범위로 오프컷 각도로 오프컷 된 것을 특징으로 하는 GaN 기판.
- 제1항의 GaN 기판 및 상기 표면에 증착된 호모에피택셜 GaN 층을 함유하는 마이크로전자 또는 광전자 디바이스 구조를 포함하는, 마이크로전자(microelectronic) 또는 광전자 디바이스 아티클(opto-electronic device article).
- 제19항에 있어서, 상기 마이크로전자 또는 광전자 디바이스 구조는 레이저 다이오드(laser diodes), 발광 디바이스(light emitting devices), 트랜지스터(transistors), 다이오드(diodes) 및 디텍터(detectors)로 구성된 군으로부터 선택되는 디바이스를 포함하는 것을 특징으로 하는 마이크로전자 또는 광전자 디바이스 아티클.
- 제19항에 있어서, 상기 디바이스 구조는 청색 또는 단파장 레이저 다이오드, 또는 HEMT 디바이스를 포함하는 디바이스 아티클.
- 약 0.2 ~ 10도 범위의 오프컷 각도로, <0001> 방향에서 및 으로 구성되는 군으로부터 선택되는 방향을 향하여 현저하게 오프컷 된 GaN(0001) 표면을 함유하되, 상기 표면은 50 x 50 ㎛2 AFM 스캔에 의해 측정된 1 nm 이하의 RMS 거칠기 및 3E6 cm-2 이하의 전위 밀도를 가지는 GaN 기판을 형성하는 방법에 있어서, 벌크 GaN 싱글 크리스탈 바디(bulk GaN single crystal body)를 성장시키는 단계 및 상기로부터 적어도 하나의 웨이퍼를 형성하기 위한 상기 벌크 GaN 싱글 크리스탈 바디 제조 단계를 포함하되, 상기 제조 단계는 다음으로 구성된 군으로부터 선택되는 단계를 포함하는 것을 특징으로 하는 방법:(i) 및 방향으로 구성된 군으로부터 선택되는 상기 방향에서 상기 오프컷 각도로 c-평면(c-plane)으로부터 기울어져 있는 슬라이싱 평면(slicing plane)에서 수행되는 슬라이싱 단계;(ii) 및 방향으로 구성된 군으로부터 선택되는 상기 방향에서 상기 오프컷 각도로 c-평면으로부터 기울어져 있는 래핑 평면(lapping plane)에서 수행되는 각도 래핑 단계; 및
- 제21항에 있어서, 상기 적어도 하나의 웨이퍼는 래핑(lapping), 폴리싱(polishing) 및 화학기계적 폴리싱(chemical mechanical polishing)으로 구성된 군으로부터 선택되는 적어도 하나의 마무리 단계에 의해 마무리되는 것을 특징으로 하는 방법.
- 제21항에 있어서, 상기 공정 단계는 (i)단계를 포함하는 방법.
- 제21항에 있어서, 상기 공정 단계는 (ii)단계를 포함하는 방법.
- 제21항에 있어서, 상기 공정 단계는 (iii)단계를 포함하는 방법.
- 제25항에 있어서, 상기 미사면 헤테로에피택셜 기판은 사파이어 및 GaAs로 구성된 군으로부터 선택되는 재료를 포함하는 방법.
- 다음의 단계를 포함하는 마이크로전자 또는 광전자 디바이스를 제조하는 방법:(c) 약 0.2 ~ 10도 범위의 오프컷 각도로, <0001> 방향에서 및 으로 구성되는 군으로부터 선택되는 방향을 향하여 현저하게 오프컷 된 GaN(0001) 표면을 함유하되, 상기 표면은 50 x 50 ㎛ AFM 스캔에 의해 측정된 1 nm 이하의 RMS 거칠기 및 3E6 cm-2 이하의 전위 밀도를 가지는 GaN 기판의 형성단계에 있어서, 벌크 GaN 싱글 크리스탈 바디(single crystal body)를 성장시키는 단계 및 상기로부터 적어도 하나의 웨이퍼를 형성하기 위한 상기 벌크 GaN 싱글 크리스탈 바디 제조 단계를 포함하며, 상기 제조 단계는 다음의 단계로 구성된 군으로부터 선택되는 단계를 포함하는 것을 특징으로 하는 GaN 기판 형성 단계:(i) 및 방향으로 구성된 군으로부터 선택되는 상기 방향에서 상기 오프컷 각도로 c-평면(c-plane)으로부터 기울어져 있는 슬라이싱 평면(slicing plane)에서 수행되는 슬라이싱 단계;(ii) 및 방향으로 구성된 군으로부터 선택되는 상기 방향에서 상기 오프컷 각도로 c-평면으로부터 기울어져 있는 래핑 평면(lapping plane)에서 수행되는 각도 래핑(lapping) 단계; 및(iii) 약 0.2 ~ 10도의 상기 범위의 오프컷 각도로, <0001> 방향으로부터 및 방향으로 구성된 군으로부터 선택되는 방향을 향하여 현저하게 오프컷 된 (0001) 표면을 함유하는 미사면 헤테로에피택셜 기판상에 상기 벌크 GaN 싱글 크리스탈 바디를 성장시킨 후, 상기 벌크 GaN 싱글 크리스탈 바디를 분리하는 단계, 및(d) 상기 GaN 기판상에 호모에피택셜 Ⅲ-Ⅴ 질화물 재료를 증착시키는 단계.
- 제27항에 있어서, 호모에피택셜 Ⅲ-Ⅴ 질화물 재료를 증착시키는 상기 단계는 MOVPE를 포함하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 1100 내지 1225 ℃ 범위의 온도에서 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 1100 내지 1225 ℃ 범위의 온도에서 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 1120 내지 1170 ℃ 범위의 온도에서 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 700 내지 1220 ℃ 범위의 온도에서 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 0.1 ㎛/hr 내지 약 50 ㎛/hr 범위의 성장률로 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 1 ㎛/hr 내지 약 4 ㎛/hr 범위의 성장률로 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 증착 단계는 약 2 ㎛/hr 내지 약 4 ㎛/hr 범위의 성장률로 수행되는 것을 특징으로 하는 방법.
- 제27항에 있어서, 상기 호모에피택셜 Ⅲ-Ⅴ 질화물 재료는 GaN을 포함하는 방법.
- 제35항에 있어서, AlGaN/GaN HEMT을 형성하기 위하여, GaN상에 AlGaN 재료를 증착시키는 단계를 추가적으로 포함하는 방법.
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- 2004-11-12 CN CN2011100601122A patent/CN102174712B/zh active Active
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011025290A2 (ko) * | 2009-08-27 | 2011-03-03 | 서울옵토디바이스주식회사 | 경사진 기판 상의 고품질 비극성/반극성 반도체 소자 및 그 제조 방법 |
WO2011025290A3 (ko) * | 2009-08-27 | 2011-06-30 | 서울옵토디바이스주식회사 | 경사진 기판 상의 고품질 비극성/반극성 반도체 소자 및 그 제조 방법 |
Also Published As
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EP1684973A2 (en) | 2006-08-02 |
WO2005050707A3 (en) | 2005-10-20 |
CN1894093A (zh) | 2007-01-10 |
JP2007534159A (ja) | 2007-11-22 |
US7390581B2 (en) | 2008-06-24 |
EP2277696A3 (en) | 2011-02-16 |
JP2011006319A (ja) | 2011-01-13 |
JP5496007B2 (ja) | 2014-05-21 |
US20080199649A1 (en) | 2008-08-21 |
US20060228584A1 (en) | 2006-10-12 |
CN1894093B (zh) | 2011-04-20 |
CN102174712A (zh) | 2011-09-07 |
JP2016029008A (ja) | 2016-03-03 |
US20100148320A1 (en) | 2010-06-17 |
JP6067801B2 (ja) | 2017-01-25 |
EP2277696A2 (en) | 2011-01-26 |
US8043731B2 (en) | 2011-10-25 |
JP5827674B2 (ja) | 2015-12-02 |
WO2005050707A2 (en) | 2005-06-02 |
EP1684973B1 (en) | 2013-12-25 |
KR101083840B1 (ko) | 2011-11-15 |
EP2277696B1 (en) | 2017-03-08 |
CN102174712B (zh) | 2013-09-11 |
EP1684973A4 (en) | 2008-03-12 |
US7118813B2 (en) | 2006-10-10 |
US20050104162A1 (en) | 2005-05-19 |
JP5248777B2 (ja) | 2013-07-31 |
JP2014129225A (ja) | 2014-07-10 |
CA2546106A1 (en) | 2005-06-02 |
US7700203B2 (en) | 2010-04-20 |
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