KR20030032965A - 질화물 반도체 기판 및 그 제조방법과 질화물 반도체기판을 이용한 질화물 반도체 장치 - Google Patents
질화물 반도체 기판 및 그 제조방법과 질화물 반도체기판을 이용한 질화물 반도체 장치 Download PDFInfo
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- KR20030032965A KR20030032965A KR1020027016787A KR20027016787A KR20030032965A KR 20030032965 A KR20030032965 A KR 20030032965A KR 1020027016787 A KR1020027016787 A KR 1020027016787A KR 20027016787 A KR20027016787 A KR 20027016787A KR 20030032965 A KR20030032965 A KR 20030032965A
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- nitride semiconductor
- protective film
- substrate
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- support substrate
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 362
- 150000004767 nitrides Chemical class 0.000 title claims abstract description 354
- 239000000758 substrate Substances 0.000 title claims abstract description 185
- 238000000034 method Methods 0.000 title claims description 79
- 238000004519 manufacturing process Methods 0.000 title description 9
- 230000000737 periodic effect Effects 0.000 claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims description 170
- 229910002601 GaN Inorganic materials 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 42
- 238000005530 etching Methods 0.000 claims description 18
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- RNQKDQAVIXDKAG-UHFFFAOYSA-N aluminum gallium Chemical compound [Al].[Ga] RNQKDQAVIXDKAG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 5
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- 238000002161 passivation Methods 0.000 claims 4
- 239000010410 layer Substances 0.000 abstract description 179
- 239000011241 protective layer Substances 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 29
- 229910052594 sapphire Inorganic materials 0.000 description 28
- 239000010980 sapphire Substances 0.000 description 28
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 22
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 18
- 230000007547 defect Effects 0.000 description 16
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 16
- 239000013078 crystal Substances 0.000 description 14
- 239000011777 magnesium Substances 0.000 description 14
- 229910021529 ammonia Inorganic materials 0.000 description 12
- 239000012535 impurity Substances 0.000 description 11
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 8
- 229910000077 silane Inorganic materials 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- MHYQBXJRURFKIN-UHFFFAOYSA-N C1(C=CC=C1)[Mg] Chemical compound C1(C=CC=C1)[Mg] MHYQBXJRURFKIN-UHFFFAOYSA-N 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000001312 dry etching Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- 150000004820 halides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001451 molecular beam epitaxy Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910052596 spinel Inorganic materials 0.000 description 2
- 239000011029 spinel Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 238000005019 vapor deposition process Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 208000012868 Overgrowth Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
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- 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
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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
- C30B25/18—Epitaxial-layer growth characterised by the substrate
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- C—CHEMISTRY; METALLURGY
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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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- 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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- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/32—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
- H01S5/323—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/32308—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm
- H01S5/32341—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser emitting light at a wavelength less than 900 nm blue laser based on GaN or GaP
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Abstract
Description
Claims (19)
- 지지기판;상기 지지기판의 표면상에 제공되는 주기적인 스트라이프, 그리드 또는 섬형상으로 형성된 부분에서 시작하여 질화물 반도체막을 측방향으로 성장하고 상기 반도체막이 서로 접합하기전에 측방향 성장을 중단시킴으로써 형성되는 T형상 횡단면을 주기적으로 배열한 제 1 질화물 반도체층; 그리고상기 제 1 질화물 반도체층의 윗면 또는 윗면과 측면으로부터 핵(core)으로써 측방향으로 성장되고 상기 지지기판의 전 표면을 피복하여 공동이 그 접합부 아래에 형성되는 제 2 질화물 반도체층을 구비함을 특징으로 하는 질화물 반도체 기판.
- 제 1 항에 있어서,상기 제 1 질화물 반도체층은 주기적인 스트라이프, 그리드 또는 섬형상의 개구부를 가진 보호막을 개재하여 상기 지지기판상에 성장되는 것을 특징으로 하는 질화물 반도체 기판.
- 제 2 항에 있어서,상기 보호막은 그리드형상의 개구부에 의하여 둘러싸여진 원 또는 직사각형 형상을 가지는 것을 특징으로 하는 질화물 반도체 기판.
- 지지기판의 표면상에 제공되는 주기적인 스트라이프, 그리드 또는 섬형상으로 형성된 부분에서 시작하여 상기 지지기판상에 측방향으로 성장되는 질화물 반도체층을 구비하고, 각 시작점으로부터 측방향으로 성장하는 상기 질화물 반도체층의 막은 서로 접합하지 않고 틈을 개재하여 서로 대향하는 것을 특징으로 하는 질화물 반도체 기판.
- 제 4 항에 있어서,상기 제 1 질화물 반도체층은 주기적인 스트라이프, 그리드 또는 섬형상의 개구부를 가진 보호막을 개재하여 상기 지지기판상에 성장되는 것을 특징으로 하는 질화물 반도체 기판.
- 제 5 항에 있어서,상기 보호막은 그리드형상의 개구부에 의하여 둘러싸여지는 원 또는 직사각형 형상을 가지는 것을 특징으로 하는 질화물 반도체 기판.
- 제 1 항 또는 제 4 항에 있어서,상기 지지기판은 다른 재료로 만들어진 기판의 전체 표면위에 질화물 반도체층을 성장시킴으로써 형성되는 것을 특징으로 하는 질화물 반도체 기판.
- 제 1 항 또는 제 4 항에 있어서,상기 지지기판은 다른 재료로 만들어진 기판상에 버퍼층을 개재하여 질화 갈륨과 질화 알루미늄 갈륨을 성장함으로써 형성되는 것을 특징으로 하는 질화물 반도체 기판.
- 제 1 항 또는 제 4 항에 있어서,상기 지지기판은 다른 재료로 만들어진 기판상에 버퍼층을 개재하여 질화 갈륨층, 질화 인듐 갈륨층을 성장시킴으로써 형성되는 것을 특징으로 하는 질화물 반도체 기판.
- 제 1 항 또는 제 4 항에 있어서,상기 지지기판은 부분적으로 또는 전체적으로 제거되는 것을 특징으로 하는 질화물 반도체 기판.
- 제 2 항 또는 제 5 항에 있어서,상기 보호막은 산화실리콘, 질화실리콘, 산화티타늄, 또는 산화지르코늄, 또는 이들 물질의 다층막, 또는 1200℃이상의 고융점을 가지는 금속막으로 만들어지는 것을 특징으로 하는 질화물 반도체 기판.
- 지지기판의 표면상에 제공된 주기적인 스트라이프, 그리드 또는 섬형상으로형성된 부분에서 시작하여 상기 지지기판상에 측방향으로 성장되는 질화물 반도체층을 포함하고, 인접하는 시작점으로부터 측방향으로 성장하는 상기 질화물 반도체층의 막이 서로 접합하지 않도록 한 질화물 반도체 기판; 그리고상기 질화물 반도체 기판상에 직접 형성되는 n형 콘택트층을 구비함을 특징으로 하는 질화물 반도체 장치.
- 지지기판상에 스트라이프, 그리드 또는 섬형상의 개구부를 가지는 보호막을 형성하는 단계;상기 보호막이 피복되지 않는 상태에서 성장이 중단되게, 상기 지지기판의 노출부로부터 상기 보호막위에 제 1 질화물 반도체를 측방향으로 성장시키는 단계;상기 보호막을 제거하여서 측방향으로 성장되어 있는 제 1 질화물 반도체층 아래에 공동을 형성하는 단계; 그리고측방향으로 성장되어 있는 제 1 질화물 반도체층의 윗면, 또는 윗면과 측면으로부터 측방향으로 제 2 질화물 반도체층을 성장시키는 단계를 구비함을 특징으로 하는 질화물 반도체 기판의 제조방법.
- 지지기판상에 주기적인 스트라이프, 그리드 또는 섬형상의 개구부를 가진 보호막을 형성하는 단계; 그리고상기 보호막을 완전히 피복하지 않도록 성장이 중단되게, 상기 지지기판의 노출부로부터 상기 보호막상에 측방향으로 질화물 반도체층을 성장하는 단계를 구비함을 특징으로 하는 질화물 반도체 기판의 제조방법.
- 제 14 항에 있어서,상기 보호막이 제거되어서 측방향으로 성장한 상기 제 2 질화물 반도체 아래에 공동을 형성하도록 함을 특징으로 하는 질화물 반도체 기판의 제조방법.
- 제 13 항 또는 제 14 항에 있어서,상기 지지기판은 다른 재료로 만들어진 기판의 전체 표면위에 질화물 반도체를 성장시킴으로써 형성됨을 특징으로 하는 질화물 반도체 기판의 제조방법.
- 제 13 항 또는 제 15 항에 있어서,상기 보호막은 에칭 또는 박리에 의하여 제거됨을 특징으로 하는 질화물 반도체 기판의 제조방법.
- 제 13 항 또는 제 15 항에 있어서,상기 보호막은 상기 지지기판이 노출될 때까지 제거됨을 특징으로 하는 질화물 반도체 기판의 제조방법.
- 제 13 항 또는 제 14 항에 있어서,상기 보호막은 산화실리콘, 질화실리콘, 산화티타늄, 또는 산화지르코늄, 또는 이들 물질의 다중층막 또는 1200℃이상의 고융점을 가지는 금속막으로 만들어짐을 특징으로 하는 질화물 반도체 기판의 제조방법.
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US20010053618A1 (en) | 2001-12-20 |
AU2001274545B2 (en) | 2005-06-23 |
CN1441982A (zh) | 2003-09-10 |
EP1320870A2 (en) | 2003-06-25 |
WO2001099155A3 (en) | 2003-04-17 |
CA2412999C (en) | 2008-08-26 |
AU7454501A (en) | 2002-01-02 |
WO2001099155A2 (en) | 2001-12-27 |
CA2412999A1 (en) | 2001-12-27 |
KR100680870B1 (ko) | 2007-02-09 |
CN1280961C (zh) | 2006-10-18 |
EP1320870B1 (en) | 2016-11-30 |
US6627520B2 (en) | 2003-09-30 |
US20030160232A1 (en) | 2003-08-28 |
TW508841B (en) | 2002-11-01 |
US6627974B2 (en) | 2003-09-30 |
US6861729B2 (en) | 2005-03-01 |
US20030032288A1 (en) | 2003-02-13 |
MY128305A (en) | 2007-01-31 |
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