KR100277940B1 - 지에이엔(gan) 반도체 레이저 다이오드 및 그 제조방법 - Google Patents
지에이엔(gan) 반도체 레이저 다이오드 및 그 제조방법 Download PDFInfo
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- KR100277940B1 KR100277940B1 KR1019980028370A KR19980028370A KR100277940B1 KR 100277940 B1 KR100277940 B1 KR 100277940B1 KR 1019980028370 A KR1019980028370 A KR 1019980028370A KR 19980028370 A KR19980028370 A KR 19980028370A KR 100277940 B1 KR100277940 B1 KR 100277940B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 89
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 150000004767 nitrides Chemical class 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 238000001312 dry etching Methods 0.000 claims abstract description 20
- 238000005253 cladding Methods 0.000 claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 239000010409 thin film Substances 0.000 claims description 21
- 239000010408 film Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 9
- 238000005229 chemical vapour deposition Methods 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 5
- 238000000407 epitaxy Methods 0.000 claims description 4
- 208000012868 Overgrowth Diseases 0.000 claims description 3
- 238000005566 electron beam evaporation Methods 0.000 claims description 3
- 238000001039 wet etching Methods 0.000 claims description 3
- 238000000059 patterning Methods 0.000 claims description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 claims description 2
- 238000000313 electron-beam-induced deposition Methods 0.000 claims 1
- 238000000206 photolithography Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 description 6
- 229910002704 AlGaN Inorganic materials 0.000 description 5
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052594 sapphire Inorganic materials 0.000 description 3
- 239000010980 sapphire Substances 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- H01L21/02617—Deposition types
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- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/10—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
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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 (16)
- 기판;상기 기판 위에 형성되고, 내부에 일정 깊이의 홈을 갖는 제 1 도전형 질화물 반도체 전극층;상기 내부 홈의 측면으로부터 성장되어 홈 외부의 제 1 도전형 질화물 반도체 전극층 위의 일부에 형성된 제 1 도전형 질화물 반도체층;상기 제 1 도전형 질화물 반도체층 위에 순차적으로 형성되는 제 1 도전형 클래드층/활성층/제 2 도전형 클래드층/제 2 도전형 질화물 반도체 전극층;상기 제 1, 제 2 도전형 질화물 반도체 전극층 위에 각각 형성되는 전극으로 구성되는 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 1 항에 있어서, 상기 제 1 도전형 질화물 반도체층의 전 표면과 상기 제 1 도전형 질화물 반도체 전극층 내부에 형성된 홈의 밑면에는 실리콘 산화막층이 형성되는 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 2 항에 있어서, 상기 실리콘 산화막층의 두께는 0.05 ∼ 0.5㎛인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 1 항에 있어서, 제 1 도전형 질화물 반도체 전극층 내부에 형성된 홈은 윗면의 폭이 넓고 밑면의 폭이 좁으며 측면은 일정 각도의 경사면을 갖는 역사다리꼴 형태인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 4 항에 있어서, 상기 측면의 각도는 0 ∼ 60도 인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 1 항에 있어서, 상기 홈의 길이는 100 ∼ 2000㎛이고, 홈의 폭은 1 ∼ 100㎛이며, 홈의 깊이는 제 1 도전형 질화물 반도체 전극층 두께의 10 ∼ 80% 인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 1 항에 있어서, 상기 홈의 길이 방향은 상기 기판의
- 제 1 항에 있어서, 상기 제 1 도전형 질화물 반도체 전극층의 두께는 2 ∼ 20㎛인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 1 항에 있어서, 상기 제 1 도전형 질화물 반도체층의 폭은 3 ∼ 500㎛이고, 길이는 100 ∼ 3000㎛인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 1 항에 있어서, 상기 기판과 제 1 도전형 질화물 반도체 전극층 사이에 버퍼층이 형성되는 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 제 10 항에 있어서, 상기 버퍼층은 GaN 또는 AlN인 것을 특징으로 하는 GaN 반도체 레이저 다이오드.
- 기판 위에 제 1 도전형 질화물 반도체 전극층 및 제 1 실리콘 산화막층을 순차적으로 형성하는 제 1 단계;상기 제 1 실리콘 산화막층의 일정영역을 소정 형태로 패터닝하여 제 1 도전형 질화물 반도체 전극층을 노출시키고, 노출된 제 1 도전형 질화물 반도체 전극층을 일정 깊이로 에칭하여 홈을 형성하는 제 2 단계;상기 홈의 밑면에 제 2 실리콘 산화막층을 형성하는 제 3 단계;상기 홈의 측면으로부터 홈 외부의 제 1 실리콘 산화막층 위의 일부까지 제 1 도전형 질화물 반도체층을 성장시키는 제 4 단계;상기 제 1 도전형 질화물 반도체층 위에 제 1 도전형 클래드층, 활성층, 제 2 도전형 클래드층, 제 2 도전형 질화물 반도체 전극층을 순차적으로 성장시켜 광 공동 거울을 형성하는 제 5 단계;상기 제 1, 제 2 도전형 질화물 반도체 전극층 위에 각각 전극을 형성하는 제 6 단계로 이루어지는 것을 특징으로 하는 GaN 반도체 레이저 다이오드 제조방법.
- 제 12 항에 있어서, 상기 제 1, 제 2 실리콘 산화막층은 플라즈마 강화 화학 증착법(Plasma Enhanced Chemical Vapor Epitaxy), 화학 증착법(Chemical Vapor Epitaxy), 전자선 증착법(Electron Beam Evaporation) 중 어느 하나로 형성되는 것을 특징으로 하는 GaN 반도체 레이저 다이오드 제조방법.
- 제 12 항에 있어서, 상기 제 4 단계에서, 제 1 도전형 질화물 반도체층 또는 그 이후의 박막층들은 ELOG(Epitaxial Lateral Overgrowth)법으로 성장되는 것을 특징으로 하는 GaN 반도체 레이저 다이오드 제조방법.
- 제 12 항에 있어서, 상기 제 4 단계에서, 제 1 도전형 질화물 반도체층 성장시의 기판 온도는 950 ∼ 1150℃ 인 것을 특징으로 하는 GaN 반도체 레이저 다이오드 제조방법.
- 제 12 항에 있어서, 제 6 단계에서, 제 1 도전형 질화물 반도체 전극층 위에 형성되는 전극은 상기 제 1 실리콘 산화막층을 습식 또는 건식식각으로 제거한 후 형성하는 것을 특징으로 하는 GaN 반도체 레이저 다이오드 제조방법.
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KR1019980028370A KR100277940B1 (ko) | 1998-07-14 | 1998-07-14 | 지에이엔(gan) 반도체 레이저 다이오드 및 그 제조방법 |
US09/351,439 US6337223B1 (en) | 1998-07-14 | 1999-07-12 | Semiconductor optical device and method for fabricating the same |
US10/026,809 US6469313B2 (en) | 1998-07-14 | 2001-12-27 | Semiconductor optical device and method for fabricating the same |
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KR101063861B1 (ko) * | 2003-07-18 | 2011-09-14 | 매그나칩 반도체 유한회사 | 반도체 소자의 플러그 폴리 패드 형성방법 |
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US6821805B1 (en) * | 1999-10-06 | 2004-11-23 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device, semiconductor substrate, and manufacture method |
US6566231B2 (en) | 2000-02-24 | 2003-05-20 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing high performance semiconductor device with reduced lattice defects in the active region |
US20050155957A1 (en) * | 2001-02-26 | 2005-07-21 | John Gregory | Method of forming an opening or cavity in a substrate for receiving an electronic component |
EP1282208A1 (en) * | 2001-07-30 | 2003-02-05 | Agilent Technologies, Inc. (a Delaware corporation) | Semiconductor laser structure and method of manufacturing same |
US20050191777A1 (en) * | 2003-09-22 | 2005-09-01 | National Chung-Hsing University | Method for producing light emitting diode with plated substrate |
KR100657905B1 (ko) * | 2004-10-27 | 2006-12-14 | 삼성전자주식회사 | 활성층 양측에 광공진층이 형성된 반도체 레이저 다이오드 |
EP2270881B1 (en) | 2008-04-30 | 2016-09-28 | LG Innotek Co., Ltd. | Light-emitting element and a production method therefor |
US8134163B2 (en) | 2008-08-11 | 2012-03-13 | Taiwan Semiconductor Manfacturing Co., Ltd. | Light-emitting diodes on concave texture substrate |
US8283676B2 (en) * | 2010-01-21 | 2012-10-09 | Siphoton Inc. | Manufacturing process for solid state lighting device on a conductive substrate |
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US4575919A (en) * | 1984-05-24 | 1986-03-18 | At&T Bell Laboratories | Method of making heteroepitaxial ridge overgrown laser |
JPS61163689A (ja) * | 1985-01-14 | 1986-07-24 | Sharp Corp | 半導体装置の製造方法 |
US5546418A (en) * | 1993-07-28 | 1996-08-13 | Matsushita Electric Industrial Co., Ltd. | Semiconductor laser having a flat groove for selected crystal planes |
JPH07183618A (ja) * | 1993-12-22 | 1995-07-21 | Ricoh Co Ltd | 半導体レーザ装置、半導体レーザ装置製造方法並びに集積型半導体レーザ装置 |
JP3374878B2 (ja) * | 1994-09-02 | 2003-02-10 | 三菱電機株式会社 | 半導体エッチング方法 |
DE69525128T2 (de) * | 1994-10-26 | 2002-09-05 | Mitsubishi Chem Corp | Lichtemittierende Halbleiteranordnung und Herstellungsverfahren |
JP3599896B2 (ja) * | 1995-05-19 | 2004-12-08 | 三洋電機株式会社 | 半導体レーザ素子および半導体レーザ素子の製造方法 |
DE69635410T2 (de) * | 1995-12-28 | 2006-07-27 | Matsushita Electric Industrial Co., Ltd., Kadoma | Halbleiterlaser und dessen herstellungsverfahren |
KR0185498B1 (ko) * | 1996-05-22 | 1999-03-20 | 박원훈 | 고출력 양자세선 어레이 레이저 다이오드 구조 제작방법 |
JP2871635B2 (ja) * | 1996-07-24 | 1999-03-17 | 日本電気株式会社 | 半導体レーザおよびその製造方法 |
US6031858A (en) * | 1996-09-09 | 2000-02-29 | Kabushiki Kaisha Toshiba | Semiconductor laser and method of fabricating same |
KR100234001B1 (ko) * | 1996-10-30 | 1999-12-15 | 박호군 | 양자세선 레이저 다이오드 제작방법 |
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KR101063861B1 (ko) * | 2003-07-18 | 2011-09-14 | 매그나칩 반도체 유한회사 | 반도체 소자의 플러그 폴리 패드 형성방법 |
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US20020055198A1 (en) | 2002-05-09 |
KR20000008519A (ko) | 2000-02-07 |
US6337223B1 (en) | 2002-01-08 |
US6469313B2 (en) | 2002-10-22 |
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