KR100674829B1 - 질화물계 반도체 장치 및 그 제조 방법 - Google Patents
질화물계 반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR100674829B1 KR100674829B1 KR1020040087201A KR20040087201A KR100674829B1 KR 100674829 B1 KR100674829 B1 KR 100674829B1 KR 1020040087201 A KR1020040087201 A KR 1020040087201A KR 20040087201 A KR20040087201 A KR 20040087201A KR 100674829 B1 KR100674829 B1 KR 100674829B1
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- 150000004767 nitrides Chemical class 0.000 title claims abstract description 45
- 239000004065 semiconductor Substances 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000013078 crystal Substances 0.000 claims abstract description 64
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 19
- 239000010703 silicon Substances 0.000 claims abstract description 19
- 230000006911 nucleation Effects 0.000 claims description 34
- 238000010899 nucleation Methods 0.000 claims description 34
- 230000007547 defect Effects 0.000 claims description 14
- 230000003287 optical effect Effects 0.000 claims description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 146
- 229910002601 GaN Inorganic materials 0.000 description 145
- 230000000052 comparative effect Effects 0.000 description 7
- 239000010408 film Substances 0.000 description 5
- 229910002704 AlGaN Inorganic materials 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000003746 surface roughness Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000000927 vapour-phase epitaxy Methods 0.000 description 1
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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
- C30B29/403—AIII-nitrides
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- C30—CRYSTAL GROWTH
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
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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
- C30B29/406—Gallium nitride
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/02381—Silicon, silicon germanium, germanium
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Abstract
Description
Claims (16)
- 기판 상에 고온 AlN 단결정층을 성장시키는 단계와;상기 AlN 단결정층 상에 300 Torr 이상인 제1 압력에서 지배적인 성장 방향이 측방향이 되도록 제1 Ⅴ/Ⅲ비로 제1 GaN층을 성장시키는 단계와;상기 제1 GaN층 상에 상기 제1 압력보다 낮은 제2 압력에서 상기 제1 Ⅴ/Ⅲ비보다 낮은 제2 Ⅴ/Ⅲ비로 제2 GaN층을 성장시키는 단계를 포함하는 질화물계 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 고온 AlN 단결정층의 두께는 200 내지 1000Å인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 고온 AlN 단결정층을 성장시키는 단계는, 1050 내지 1200℃온도에서 실행되는 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제3항에 있어서,상기 제1 GaN층을 성장시키는 단계 및 제2 GaN층을 성장시키는 단계는, 상기 AlN 단결정층의 성장 온도와 동일한 온도에서 실행되는 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1 항에 있어서,상기 제1 압력은 300 내지 760 Torr 이고,상기 제1 GaN층을 성장시키는 단계는,상기 AlN 단결정층 상에 적어도 10000의 Ⅴ/Ⅲ비로 2차원 성장을 위한 GaN 핵생성 시드층을 형성하는 단계와, 상기 GaN 핵생성 시드층을 이용하여 적어도 6000의 Ⅴ/Ⅲ비로 제1 GaN층을 형성하는 단계를 포함하는 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제5항에 있어서,상기 GaN 핵생성 시드층을 형성하기 위한 Ⅴ/Ⅲ비는 10000 내지 150000이고, 상기 제1 GaN층을 형성하기 위한 Ⅴ/Ⅲ비는 6000 내지 12000인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제6항에 있어서,상기 핵생성 시드를 형성하기 위한 Ⅴ/Ⅲ비는 상기 제1 GaN층을 형성하기 위한 Ⅴ/Ⅲ비보다 높은 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 제2 압력은 100 Torr이하이고, 상기 제2 Ⅴ/Ⅲ비는 3000 이하인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제8항에 있어서,상기 제2 압력은 10 내지 50 Torr이고, 상기 제2 Ⅴ/Ⅲ비는 800 내지 3000인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 제1 GaN층의 결정 결함밀도는 109 cm-3 이하인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 제2 GaN층의 결정 결함밀도는 108 cm-3 이하인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1항에 있어서,상기 기판은 실리콘 기판인 것을 특징으로 하는 질화물계 반도체 장치의 제조 방법.
- 제1항 내지 제12항 중 어느 한 항의 질화물계 반도체 장치의 제조 방법을 이용하여 제조된 질화물 반도체 광소자로서,기판 상에 형성된 고온 AlN 단결정층;상기 고온 AlN 단결정층 상에 형성된 GaN 핵생성 시드층;상기 GaN 핵생성 시드층 상에 지배적으로 측방향으로 성장된 제1 GaN층; 및상기 제1 GaN층 상에 지배적으로 측방향으로 성장되고 상기 제1 GaN층보다 더 낮은 결정 결함밀도를 갖는 제2 GaN층을 포함하는 것을 특징으로 하는 질화물 반도체 광소자.
- 기판 상에 형성된 고온 AlN 단결정층;상기 고온 AlN 단결정층 상에 형성된 GaN 핵생성 시드층;상기 GaN 핵생성 시드층 상에 지배적으로 측방향으로 성장되고 결정 결함밀도가 109 cm-3 이하인 제1 GaN층; 및상기 제1 GaN층 상에 지배적으로 측방향으로 성장되고 결정 결함밀도가 108 cm-3 이하인 제2 GaN층을 포함하는 질화물계 반도체 장치.
- 제14항에 있어서,상기 고온 AlN 단결정층의 두께는 200 내지 1000Å인 것을 특징으로 하는 질화물계 반도체 장치.
- 제14항에 있어서,상기 기판은 실리콘 기판인 것을 특징으로 하는 질화물계 반도체 장치.
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KR1020040087201A KR100674829B1 (ko) | 2004-10-29 | 2004-10-29 | 질화물계 반도체 장치 및 그 제조 방법 |
US11/203,132 US7319064B2 (en) | 2004-10-29 | 2005-08-15 | Nitride based semiconductor device and process for preparing the same |
JP2005238226A JP4335187B2 (ja) | 2004-10-29 | 2005-08-19 | 窒化物系半導体装置の製造方法 |
US11/987,706 US20080150086A1 (en) | 2004-10-29 | 2007-12-04 | Nitride based semiconductor device and process for preparing the same |
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KR1020040087201A KR100674829B1 (ko) | 2004-10-29 | 2004-10-29 | 질화물계 반도체 장치 및 그 제조 방법 |
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KR20060038058A KR20060038058A (ko) | 2006-05-03 |
KR100674829B1 true KR100674829B1 (ko) | 2007-01-25 |
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US6521514B1 (en) * | 1999-11-17 | 2003-02-18 | North Carolina State University | Pendeoepitaxial methods of fabricating gallium nitride semiconductor layers on sapphire substrates |
US7112830B2 (en) * | 2002-11-25 | 2006-09-26 | Apa Enterprises, Inc. | Super lattice modification of overlying transistor |
JP4514584B2 (ja) * | 2004-11-16 | 2010-07-28 | 富士通株式会社 | 化合物半導体装置及びその製造方法 |
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US8476646B2 (en) | 2009-11-30 | 2013-07-02 | Lg Innotek Co., Ltd. | Light emitting device and light emitting device package |
US8987753B2 (en) | 2009-11-30 | 2015-03-24 | Lg Innotek Co., Ltd. | Light emitting device and light emitting device package |
US9595647B2 (en) | 2009-11-30 | 2017-03-14 | Lg Innotek Co., Ltd. | Light emitting device and light emitting device package |
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KR20060038058A (ko) | 2006-05-03 |
US20080150086A1 (en) | 2008-06-26 |
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