JP5270088B2 - 垂直型発光素子及びその製造方法 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims description 32
- 239000004065 semiconductor Substances 0.000 claims abstract description 129
- 238000000034 method Methods 0.000 claims abstract description 67
- 239000000758 substrate Substances 0.000 claims description 60
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 claims description 13
- 150000004767 nitrides Chemical class 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052732 germanium Inorganic materials 0.000 claims description 5
- 238000001039 wet etching Methods 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 4
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 26
- 229910002601 GaN Inorganic materials 0.000 description 22
- 229920002120 photoresistant polymer Polymers 0.000 description 12
- 239000013078 crystal Substances 0.000 description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 229910052594 sapphire Inorganic materials 0.000 description 5
- 239000010980 sapphire Substances 0.000 description 5
- 239000010409 thin film Substances 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- -1 Gallium nitride (GaN) compound Chemical class 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000001451 molecular beam epitaxy Methods 0.000 description 2
- 229910017464 nitrogen compound Inorganic materials 0.000 description 2
- 150000002830 nitrogen compounds Chemical class 0.000 description 2
- 238000002294 plasma sputter deposition Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910010093 LiAlO Inorganic materials 0.000 description 1
- 229910004205 SiNX Inorganic materials 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
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 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
- YQNQTEBHHUSESQ-UHFFFAOYSA-N lithium aluminate Chemical compound [Li+].[O-][Al]=O YQNQTEBHHUSESQ-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 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
- 238000000059 patterning Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
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- 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
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02436—Intermediate layers between substrates and deposited layers
- H01L21/02439—Materials
- H01L21/02455—Group 13/15 materials
- H01L21/02458—Nitrides
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02538—Group 13/15 materials
- H01L21/0254—Nitrides
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02617—Deposition types
- H01L21/02636—Selective deposition, e.g. simultaneous growth of mono- and non-monocrystalline semiconductor materials
- H01L21/02639—Preparation of substrate for selective deposition
-
- 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
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Description
110 マスク層
111 マクス物質
210 フォトレジスト
Claims (26)
- 基板上にマスク層を形成する段階と、
前記マスク層のパターン形状に沿って、窒化物半導体からなる伝導性半導体層を形成する段階と、
前記伝導性半導体層上に第1型半導体層、活性層、第2型半導体層を備え、窒化物半導体からなる半導体構造を形成する段階と、
前記半導体構造上に第1電極を形成する段階と、
前記第1電極上に支持層を形成する段階と、
前記基板を除去する段階と、
前記伝導性半導体層の表面に第2電極を形成する段階と、を含んで構成され、
前記伝導性半導体層は、前記半導体構造より厚く、前記半導体構造を成長するためのテンプレートとなり、
前記伝導性半導体層は、素子の光抽出効率を向上するために、傾斜角を有する側面を備え、
前記傾斜角は、前記伝導性半導体層の前記表面が前記伝導性半導体層の前記半導体構造と対面する表面より大きくなるよう設定されることを特徴とする垂直型発光素子の製造方法。 - バッファ層上に前記マスク層を形成することを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 前記バッファ層は、InxAlyGa1-x-yN層(0≦(x,y)≦1)を含むことを特徴とする請求項2に記載の垂直型発光素子の製造方法。
- 前記マスク層を形成する段階は、
前記基板上に誘電体層を形成する段階と、
前記誘電体層を円状または多角形状のパターンで除去する段階と、を含んで構成されることを特徴とする請求項1に記載の垂直型発光素子の製造方法。 - 前記伝導性半導体層の水平断面は、前記誘電体層の円状または多角形状と同一であることを特徴とする請求項4に記載の垂直型発光素子の製造方法。
- 前記伝導性半導体層の水平断面は、前記誘電体層の多角形状より多くの角を有することを特徴とする請求項4に記載の垂直型発光素子の製造方法。
- 前記誘電体層は、シリコン酸化物またはシリコン窒化物を含むことを特徴とする請求項4に記載の垂直型発光素子の製造方法。
- 前記伝導性半導体層は、1〜300μmの厚さを有する伝導性GaN層を含むことを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 前記伝導性半導体層は、HVPE(Hydride Vapor Phase Epitaxy)法で形成されることを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 前記伝導性半導体層の前記傾斜角は、前記伝導性半導体層の前記表面に対した側面の角度であり、35〜65°の範囲内であることを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 前記基板は、HVPE(Hydride Vapor Phase Epitaxy)法で形成されるGaN基板を含むことを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 前記半導体構造は、MOCVD(Metal Organic Chemica Vapor Deposition)工程を通して形成されることを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 前記基板の除去は、レーザーリフトオフ工程または湿式エッチング工程により行われることを特徴とする請求項1に記載の垂直型発光素子の製造方法。
- 支持層と、
前記支持層上の第1電極と、
前記第1電極上の半導体構造であって、第1型層、活性層、第2型層を含み、窒化物半導体からなる半導体構造と、
前記半導体構造上の、外側面が特定の傾斜角を有し、窒化物半導体からなる伝導性半導体層と、
前記伝導性半導体層の表面上の第2電極と、を含んで構成され、
前記伝導性半導体層の前記外側面の前記傾斜角は、前記伝導性半導体層の前記表面が前記伝導性半導体層の前記半導体構造と対面する表面より大きくなるよう設定されることを特徴とする垂直型発光素子。 - 前記伝導性半導体層の外側面の傾斜角は、前記伝導性半導体層の前記表面と側面との間の角度であることを特徴とする請求項14に記載の垂直型発光素子。
- 前記伝導性半導体層は、1〜300μmの厚さを有する伝導性GaN層を含むことを特徴とする請求項14に記載の垂直型発光素子。
- 前記支持層、第1電極、半導体構造、伝導性半導体層及び第2電極のうち少なくとも何れか一つ以上は、水平断面が4角以上の多角形状であることを特徴とする請求項14に記載の垂直型発光素子。
- 前記第1電極は、
反射電極と、
前記反射電極上に位置するオーミック電極と、を含んで構成されることを特徴とする請求項14に記載の垂直型発光素子。 - 第1電極は、反射型オーミック電極であることを特徴とする請求項14に記載の垂直型発光素子。
- 前記半導体構造の外側面は、前記伝導性半導体層の前記外側面の前記傾斜角と異なる角度を有することを特徴とする請求項14に記載の垂直型発光素子。
- 前記支持層は、シリコン(Si)基板、ガリウム砒素(GaAs)基板、ゲルマニウム(Ge)基板、金属基板、及び金属を含む基板のうちの一つを含むことを特徴とする請求項14に記載の垂直型発光素子。
- 前記支持層は、NiまたはCuを含むことを特徴とする請求項14に記載の垂直型発光素子。
- 前記伝導性半導体層の外側面は、前記半導体構造から放出される光の内部全反射が起こる確率が減少するように構成され、素子の光抽出効率を改善することを特徴とする請求項14に記載の垂直型発光素子。
- 前記伝導性半導体層は、前記半導体構造より厚いことを特徴とする請求項14に記載の垂直型発光素子。
- 前記支持層と前記第1電極との間に配置された結合金属をさらに備えることを特徴とする請求項14に記載の垂直型発光素子。
- 前記伝導性半導体層の前記外側面の前記傾斜角は、前記伝導性半導体層の前記表面と側面との間の角度であり、35〜65°の範囲内であることを特徴とする請求項14に記載の垂直型発光素子。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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KR10-2005-0123857 | 2005-12-15 | ||
KR1020050123857A KR100705225B1 (ko) | 2005-12-15 | 2005-12-15 | 수직형 발광소자의 제조방법 |
KR10-2006-0063586 | 2006-07-06 | ||
KR20060063586A KR100808197B1 (ko) | 2006-07-06 | 2006-07-06 | 수직형 발광 소자 및 그 제조방법 |
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JP2007165908A JP2007165908A (ja) | 2007-06-28 |
JP5270088B2 true JP5270088B2 (ja) | 2013-08-21 |
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US (2) | US7812357B2 (ja) |
EP (1) | EP1798781B1 (ja) |
JP (1) | JP5270088B2 (ja) |
CN (2) | CN103151437A (ja) |
DE (1) | DE602006008256D1 (ja) |
PL (1) | PL1798781T3 (ja) |
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- 2006-12-14 EP EP06291935A patent/EP1798781B1/en active Active
- 2006-12-14 DE DE602006008256T patent/DE602006008256D1/de active Active
- 2006-12-15 US US11/639,430 patent/US7812357B2/en active Active
- 2006-12-15 CN CN2013100557133A patent/CN103151437A/zh active Pending
- 2006-12-15 CN CN2011100946823A patent/CN102157644B/zh active Active
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021241998A1 (ko) * | 2020-05-26 | 2021-12-02 | 주식회사 에스엘바이오닉스 | 반도체 발광소자를 제조하는 방법 |
KR20210146005A (ko) * | 2020-05-26 | 2021-12-03 | 주식회사 에스엘바이오닉스 | 반도체 발광소자를 제조하는 방법 |
KR102338181B1 (ko) * | 2020-05-26 | 2021-12-10 | 주식회사 에스엘바이오닉스 | 반도체 발광소자를 제조하는 방법 |
Also Published As
Publication number | Publication date |
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PL1798781T3 (pl) | 2010-03-31 |
EP1798781A3 (en) | 2007-10-10 |
US20070164298A1 (en) | 2007-07-19 |
EP1798781A2 (en) | 2007-06-20 |
JP2007165908A (ja) | 2007-06-28 |
EP1798781B1 (en) | 2009-08-05 |
DE602006008256D1 (de) | 2009-09-17 |
US8202753B2 (en) | 2012-06-19 |
US7812357B2 (en) | 2010-10-12 |
CN102157644B (zh) | 2012-12-26 |
US20110059564A1 (en) | 2011-03-10 |
CN102157644A (zh) | 2011-08-17 |
CN103151437A (zh) | 2013-06-12 |
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