KR100781118B1 - 반도체 레이저 소자의 제조 방법 - Google Patents
반도체 레이저 소자의 제조 방법 Download PDFInfo
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- KR100781118B1 KR100781118B1 KR1020050100114A KR20050100114A KR100781118B1 KR 100781118 B1 KR100781118 B1 KR 100781118B1 KR 1020050100114 A KR1020050100114 A KR 1020050100114A KR 20050100114 A KR20050100114 A KR 20050100114A KR 100781118 B1 KR100781118 B1 KR 100781118B1
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 238000005253 cladding Methods 0.000 claims abstract description 46
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 238000001312 dry etching Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 238000001039 wet etching Methods 0.000 claims abstract description 15
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical group F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical group Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 129
- 239000010408 film Substances 0.000 description 25
- 239000011241 protective layer Substances 0.000 description 12
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 7
- 238000005530 etching Methods 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
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- 239000010979 ruby Substances 0.000 description 1
- 229910001750 ruby Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/20—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
- H01S5/22—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
- H01S5/2205—Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/761—PN junctions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
- H01L29/0603—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
- H01L29/0642—Isolation within the component, i.e. internal isolation
- H01L29/0646—PN junctions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- 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
- H01S5/3202—Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures grown on specifically orientated substrates, or using orientation dependent growth
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Geometry (AREA)
- Semiconductor Lasers (AREA)
Abstract
Description
Claims (14)
- 기판 상에 적어도 하나의 활성층 및 상기 활성층의 상하부에 서로 다른 전도 타입의 클래드층을 형성하는 단계,상기 상부 클래드층 상에 적어도 하나의 콘택층을 형성하는 단계,상기 콘택층으로부터 상기 상부 클래드층의 제1 깊이까지 건식 식각하여 리지를 형성하는 단계,상기 리지의 상면 및 측면에 보호벽을 형성하는 단계,습식 식각을 통하여 상기 리지 하단의 측면이 수평면에 대하여 경사지도록 상기 상부 클래드층을 제2 깊이까지 제거하는 단계,상기 보호벽을 제거하는 단계,상기 리지 상면을 제외하고, 상기 리지 측면 및 상기 상부 클래드층 상에 전류제한층을 형성하는 단계, 그리고상기 리지 상면 및 상기 전류제한층 상으로 전극을 형성하는 단계를 포함하는 반도체 레이저 소자의 제조 방법.
- 제1항에서,상기 상부 클래드층은 제2 깊이에 식각저지층을 포함하는 반도체 레이저 소자의 제조 방법.
- 제2항에서,상기 리지의 보호벽은 유전막으로 형성되는 반도체 레이저 소자의 제조 방법.
- 제3항에서,상기 리지의 보호벽을 형성하는 단계는,상기 리지 및 상기 상부 클래드층 상에 상기 유전막을 형성하는 단계, 그리고건식 식각의 속도 차를 이용하여 상기 리지의 측면 및 상면에 보호벽을 형성하는 단계를 포함하는 반도체 레이저 소자의 제조 방법.
- 제4항에서,상기 보호벽을 제거하는 단계는,제1 식각액을 이용하여 상기 상부 클래드층을 상기 식각저지층까지 제거하는 단계, 그리고제2 식각액을 이용하여 상기 리지의 상면 및 측면의 보호벽을 제거하는 단계를 포함하는 반도체 레이저 소자의 제조 방법.
- 제5항에서,상기 제1 식각액은 염산계 식각액이며, 제2 식각액은 불산계 식각액인 반도체 레이저 소자의 제조 방법.
- 제6항에서,상기 전류제한층을 형성하는 단계는,상기 리지 및 상기 상부 클래드층 상에 전류제한층을 형성하는 단계, 그리고 상기 리지의 상면에 형성된 상기 전류제한층을 선택적으로 제거하는 단계를 포함하는 반도체 레이저 소자의 제조 방법.
- 제7항에서,상기 전류제한층은 유전막으로 형성되는 반도체 레이저 소자의 제조 방법.
- 제8항에서,상기 리지의 하단 폭에 대한 상단 폭의 비율이 0.8이상인 반도체 레이저 소자의 제조 방법.
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KR1020050100114A KR100781118B1 (ko) | 2005-10-24 | 2005-10-24 | 반도체 레이저 소자의 제조 방법 |
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KR1020050100114A KR100781118B1 (ko) | 2005-10-24 | 2005-10-24 | 반도체 레이저 소자의 제조 방법 |
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KR20070044138A KR20070044138A (ko) | 2007-04-27 |
KR100781118B1 true KR100781118B1 (ko) | 2007-11-30 |
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KR1020050100114A KR100781118B1 (ko) | 2005-10-24 | 2005-10-24 | 반도체 레이저 소자의 제조 방법 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180083029A (ko) * | 2017-01-11 | 2018-07-20 | 한국전자통신연구원 | 다채널 광원의 제조 방법 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5786234A (en) * | 1995-10-17 | 1998-07-28 | Mitsubishi Denki Kabushiki Kaisha | Method of fabricating semiconductor laser |
JP2002094190A (ja) * | 2000-07-10 | 2002-03-29 | Sanyo Electric Co Ltd | 窒化物系半導体発光素子 |
KR100378352B1 (ko) | 2000-12-20 | 2003-03-29 | 삼성전기주식회사 | 리지 웨이브 가이드를 구비하는 반도체 레이저 다이오드및 그 제조 방법 |
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- 2005-10-24 KR KR1020050100114A patent/KR100781118B1/ko active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5786234A (en) * | 1995-10-17 | 1998-07-28 | Mitsubishi Denki Kabushiki Kaisha | Method of fabricating semiconductor laser |
JP2002094190A (ja) * | 2000-07-10 | 2002-03-29 | Sanyo Electric Co Ltd | 窒化物系半導体発光素子 |
KR100378352B1 (ko) | 2000-12-20 | 2003-03-29 | 삼성전기주식회사 | 리지 웨이브 가이드를 구비하는 반도체 레이저 다이오드및 그 제조 방법 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180083029A (ko) * | 2017-01-11 | 2018-07-20 | 한국전자통신연구원 | 다채널 광원의 제조 방법 |
KR102442202B1 (ko) | 2017-01-11 | 2022-09-16 | 한국전자통신연구원 | 다채널 광원의 제조 방법 |
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KR20070044138A (ko) | 2007-04-27 |
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