JP5130435B2 - Iii族窒化物半導体基板のパターン形成方法及びiii族窒化物半導体発光素子の製造方法 - Google Patents
Iii族窒化物半導体基板のパターン形成方法及びiii族窒化物半導体発光素子の製造方法 Download PDFInfo
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- JP5130435B2 JP5130435B2 JP2009112801A JP2009112801A JP5130435B2 JP 5130435 B2 JP5130435 B2 JP 5130435B2 JP 2009112801 A JP2009112801 A JP 2009112801A JP 2009112801 A JP2009112801 A JP 2009112801A JP 5130435 B2 JP5130435 B2 JP 5130435B2
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- 150000004767 nitrides Chemical class 0.000 title claims description 132
- 239000004065 semiconductor Substances 0.000 title claims description 124
- 239000000758 substrate Substances 0.000 title claims description 78
- 238000000034 method Methods 0.000 title claims description 72
- 238000004519 manufacturing process Methods 0.000 title description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 64
- 238000005530 etching Methods 0.000 claims description 51
- 229910052757 nitrogen Inorganic materials 0.000 claims description 32
- 239000013078 crystal Substances 0.000 claims description 18
- 230000001678 irradiating effect Effects 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 5
- 238000001039 wet etching Methods 0.000 claims description 5
- 229910052594 sapphire Inorganic materials 0.000 claims description 4
- 239000010980 sapphire Substances 0.000 claims description 4
- 229910010093 LiAlO Inorganic materials 0.000 claims description 3
- 229910020068 MgAl Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000059 patterning Methods 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 8
- 229920002120 photoresistant polymer Polymers 0.000 description 7
- 238000000605 extraction Methods 0.000 description 5
- 238000010884 ion-beam technique Methods 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009832 plasma treatment Methods 0.000 description 3
- 230000007261 regionalization Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- 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
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
-
- 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
- H01L21/02—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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/308—Chemical or electrical treatment, e.g. electrolytic etching using masks
- H01L21/3083—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
- H01L21/3086—Chemical or electrical treatment, e.g. electrolytic etching using masks characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane characterised by the process involved to create the mask, e.g. lift-off masks, sidewalls, or to modify the mask, e.g. pre-treatment, post-treatment
-
- 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
- H01L21/02—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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/30604—Chemical etching
- H01L21/30612—Etching of AIIIBV compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- H01L33/005—Processes
- H01L33/0095—Post-treatment of devices, e.g. annealing, recrystallisation or short-circuit elimination
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- H01L33/005—Processes
- H01L33/0093—Wafer bonding; Removal of the growth substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- 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
- H01L33/20—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 particular shape, e.g. curved or truncated substrate
- H01L33/22—Roughened surfaces, e.g. at the interface between epitaxial layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—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
- 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
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
- H01L33/32—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Led Devices (AREA)
- Weting (AREA)
- Semiconductor Lasers (AREA)
- Drying Of Semiconductors (AREA)
Description
210 ベース基板
231 第1窒化物半導体層
232 活性層
233 第2窒化物半導体層
Claims (8)
- III族窒化物半導体基板の表面において、エッチングを防止するための少なくとも一つの第1領域上にレーザを照射してIII族元素極性を有するマスクを形成する段階と、
前記レーザが照射されてIII族元素極性を有する第1領域をマスクとして利用し、前記レーザが照射された第1領域を除いた少なくとも一つの第2領域をエッチングする段階と
を含み、
前記III族窒化物半導体基板は、
前記第1及び第2領域を含み窒素極性を有する第1表面と、
前記第1表面と反対側に位置してIII族元素極性を有する第2表面と
を含み、
前記第1領域にレーザを照射して形成されたIII族元素極性を有するマスク上に電極を形成する段階
をさらに含むことを特徴とするIII族窒化物半導体基板のパターン形成方法。 - 前記III族窒化物半導体基板は、AlxInyGa(1−x−y)N(0≦x≦1、0≦y≦1、0≦x+y≦1)半導体からなることを特徴とする請求項1に記載のIII族窒化物半導体基板のパターン形成方法。
- 前記第2領域をエッチングする段階は、KOH、H2SO4及びH2PO4のうちのいずれか一つの物質を利用したウェットエッチングで行われることを特徴とする請求項1に記載のIII族窒化物半導体基板のパターン形成方法。
- 前記III族窒化物半導体基板は、
窒化物単結晶成長用基板上に、第1III族窒化物半導体層と、活性層と、第2III族窒化物半導体層とを含んだIII族窒化物半導体基板を成長させる段階と、
前記第2III族窒化物半導体層上に前記III族窒化物半導体基板を支持するための支持基板を形成する段階と、
前記III族窒化物半導体基板から前記窒化物単結晶成長用基板を除去する段階と、
を含む段階により製造され、
前記エッチングを防止するための少なくとも一つの第1領域上にレーザを照射する段階は、前記窒化物単結晶成長用基板を除去することによって露出した前記III族窒化物半導体基板の表面にレーザを照射することを特徴とする請求項1に記載のIII族窒化物半導体基板のパターン形成方法。 - 前記少なくとも一つの第2領域をエッチングする段階は、前記第2領域を、前記第1III族窒化物半導体層の一定の深さまでエッチングして、光を抽出するための凹凸パターンを形成することを特徴とする請求項4に記載のIII族窒化物半導体基板のパターン形成方法。
- 前記少なくとも一つの第2領域をエッチングする段階は、前記第2領域を、前記第1III族窒化物半導体層から前記第2III族窒化物半導体層まで貫通するような深さまでエッチングして、前記発光構造物を素子単位で分離するための溝パターンを形成することを特徴とする請求項4に記載のIII族窒化物半導体基板のパターン形成方法。
- 前記窒化物単結晶成長用基板は、サファイア、SiC、Si、ZnO、MgAl2O4、MgO、LiAlO2及びLiGaO2で構成されたグループから選ばれた物質からなることを特徴とする請求項4に記載のIII族窒化物半導体基板のパターン形成方法。
- 前記支持基板上に第2電極を形成する段階と
をさらに含むことを特徴とする請求項4に記載のIII族窒化物半導体基板のパターン形成方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020080101586A KR101018179B1 (ko) | 2008-10-16 | 2008-10-16 | Ⅲ족 질화물 반도체 기판의 패턴 형성 방법 및 ⅲ족 질화물반도체 발광소자의 제조 방법 |
KR10-2008-0101586 | 2008-10-16 |
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JP2010098288A JP2010098288A (ja) | 2010-04-30 |
JP5130435B2 true JP5130435B2 (ja) | 2013-01-30 |
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Country Status (4)
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US (2) | US7816284B2 (ja) |
JP (1) | JP5130435B2 (ja) |
KR (1) | KR101018179B1 (ja) |
DE (1) | DE102009020819B4 (ja) |
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KR100982993B1 (ko) * | 2008-10-14 | 2010-09-17 | 삼성엘이디 주식회사 | Ⅲ족 질화물 반도체의 표면 처리 방법, ⅲ족 질화물 반도체및 그의 제조 방법 및 ⅲ족 질화물 반도체 구조물 |
TWI488334B (zh) * | 2009-07-01 | 2015-06-11 | Epistar Corp | 發光元件及其製造方法 |
US8878210B2 (en) | 2009-07-01 | 2014-11-04 | Epistar Corporation | Light-emitting device |
US9705028B2 (en) | 2010-02-26 | 2017-07-11 | Micron Technology, Inc. | Light emitting diodes with N-polarity and associated methods of manufacturing |
KR101686677B1 (ko) * | 2010-12-24 | 2016-12-14 | 엘지전자 주식회사 | 반도체 박막 성장 방법 및 이에 의해 성장된 반도체의 박막 |
US9093356B2 (en) * | 2010-12-28 | 2015-07-28 | Nichia Corporation | Semiconductor light emitting element |
CN103354955B (zh) * | 2010-12-28 | 2016-08-10 | 日亚化学工业株式会社 | 半导体发光装置 |
US8469272B2 (en) | 2011-03-29 | 2013-06-25 | Metrologic Instruments, Inc. | Hybrid-type bioptical laser scanning and imaging system supporting digital-imaging based bar code symbol reading at the surface of a laser scanning window |
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KR20130132137A (ko) * | 2012-05-25 | 2013-12-04 | 삼성전자주식회사 | 반도체 발광소자 제조방법 |
KR102082450B1 (ko) * | 2013-05-10 | 2020-02-28 | 포항공과대학교 산학협력단 | 산화아연 나노막대 어레이의 제조방법, 그것에 의해 제조된 산화아연 나노 막대 어레이 및 그것을 이용한 반도체 소자 |
KR102203534B1 (ko) | 2019-05-07 | 2021-01-15 | 강호동 | 발포시트제조장치의 유해가스제거장치 |
CN114256056A (zh) * | 2020-09-24 | 2022-03-29 | 东莞新科技术研究开发有限公司 | 一种基片刻蚀后氮化物的去除方法 |
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KR100982993B1 (ko) | 2008-10-14 | 2010-09-17 | 삼성엘이디 주식회사 | Ⅲ족 질화물 반도체의 표면 처리 방법, ⅲ족 질화물 반도체및 그의 제조 방법 및 ⅲ족 질화물 반도체 구조물 |
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Publication number | Publication date |
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DE102009020819B4 (de) | 2016-04-14 |
US8110417B2 (en) | 2012-02-07 |
KR20100042438A (ko) | 2010-04-26 |
DE102009020819A1 (de) | 2010-04-22 |
US7816284B2 (en) | 2010-10-19 |
US20100099212A1 (en) | 2010-04-22 |
JP2010098288A (ja) | 2010-04-30 |
US20110008924A1 (en) | 2011-01-13 |
KR101018179B1 (ko) | 2011-02-28 |
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