JP4903089B2 - 偏光性を有する半導体発光素子 - Google Patents
偏光性を有する半導体発光素子 Download PDFInfo
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- JP4903089B2 JP4903089B2 JP2007156212A JP2007156212A JP4903089B2 JP 4903089 B2 JP4903089 B2 JP 4903089B2 JP 2007156212 A JP2007156212 A JP 2007156212A JP 2007156212 A JP2007156212 A JP 2007156212A JP 4903089 B2 JP4903089 B2 JP 4903089B2
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- 239000004065 semiconductor Substances 0.000 title claims description 150
- 239000000758 substrate Substances 0.000 claims description 36
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000010287 polarization Effects 0.000 description 23
- 239000004038 photonic crystal Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 7
- 239000013078 crystal Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002050 diffraction method Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000000609 electron-beam lithography Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- H01L33/10—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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- 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
- H01L33/08—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 plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Description
34、44 第1導電型半導体層
36、46 活性層
38、48 第2導電型半導体層
G 光ガイド部
H 溝構造
Claims (14)
- 第1導電型半導体層、活性層及び第2導電型半導体層が積層された半導体構造物を含む半導体発光素子において、
前記半導体構造物は、前記第2導電型半導体層から少なくとも活性層に至るまでの深さを有するように一定方向に沿って周期的に配列された複数の溝領域により形成された複数の光ガイド部を含み、
前記複数の光ガイド部は、その幅より大きい長さを有し、
前記複数の溝領域と前記光ガイド部は、それぞれ周期 p=m・λ/(2neq) で一定に繰り返されて形成され、
前記mは、自然数で、前記λは、前記活性層から放出された波長で、前記neqは、前記半導体層の有効屈折率であることを特徴とする半導体発光素子。 - 前記複数の光ガイド部は、各々その幅より少なくとも3倍大きい長さを有するように形成されたことを特徴とする請求項1に記載の半導体発光素子。
- 前記溝領域は、前記半導体構造物の屈折率より低い屈折率を有する物質で充填されたことを特徴とする請求項1に記載の半導体発光素子。
- 前記第1導電型半導体層、前記活性層及び前記第2導電型半導体層が順次に積層された絶縁性基板をさらに含み、
前記半導体構造物は、前記第1導電型半導体層の一領域が露出されるようにメサエッチングされた構造を有し、前記第1導電型半導体層の前記露出された一領域と前記第2導電型半導体層の一領域に各々形成された第1及び第2電極をさらに含むことを特徴とする請求項1に記載の半導体発光素子。 - 前記複数の溝領域は、各々前記第2電極の隣接した位置から前記第1電極に向かって延長され形成されたことを特徴とする請求項4に記載の半導体発光素子。
- 前記第2導電型半導体層、前記活性層及び前記第1導電型半導体層が順次に積層された導電性基板と、前記第1導電型基板の上面の一領域と前記導電性基板の下面に各々形成された第1及び第2電極をさらに含むことを特徴とする請求項1に記載の半導体発光素子。
- 前記複数の溝領域は、各々前記半導体構造物の一側面から対向する他の側面まで開放されるように延長され形成されたことを特徴とする請求項6に記載の半導体発光素子。
- 前記複数の溝領域は、2個以上の列方向に配列されたことを特徴とする請求項1に記載の半導体発光素子。
- 前記複数の光ガイド部は、前記第2導電型半導体層により相互連結されるように形成されたことを特徴とする請求項8に記載の半導体発光素子。
- 前記半導体構造物は、前記活性層を介して前記活性層から発生する光の半波長の整数倍に該当する間隔で形成された第1及び第2反射層構造からなり、
前記第2反射層構造は光放出方向に位置し、前記第2反射層構造は前記第1反射層構造より前記活性層から発生する光の波長に対して低い反射率を有することを特徴とする請求項1に記載の半導体発光素子。 - 前記第1反射層構造は、前記活性層から発生する光の波長に対して80%以上の反射率を有し、前記第2反射層構造は前記活性層から発生する光の波長に対して20〜60%の反射率を有することを特徴とする請求項10に記載の半導体発光素子。
- 前記第1導電型半導体層、前記活性層及び前記第2導電型半導体層が順次に積層された絶縁性基板をさらに含み、
前記第2反射層構造は前記第2導電型半導体層の上面に位置し、前記第1反射層は前記第1導電型半導体層の内部に位置することを特徴とする請求項10に記載の半導体発光素子。 - 前記第2導電型半導体層、前記活性層及び前記第1導電型半導体層が順次に積層された導電性基板をさらに含み、
前記第1反射層構造は前記第1導電型半導体層の内部に位置し、前記第2反射層構造は前記導電性基板であるか前記導電性基板と前記第1導電型半導体層との間に位置した金属反射層であることを特徴とする請求項10に記載の半導体発光素子。 - 前記第1反射層構造は、相異する屈折率を有する半導体層が複数で交互に積層されて成るDBR構造であることを特徴とする請求項11または請求項12に記載の半導体発光素子。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020060061789A KR100818451B1 (ko) | 2006-07-03 | 2006-07-03 | 편광성을 갖는 반도체 발광 소자 |
KR10-2006-0061789 | 2006-07-03 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2011217900A Division JP5294280B2 (ja) | 2006-07-03 | 2011-09-30 | 偏光性を有する半導体発光素子 |
Publications (2)
Publication Number | Publication Date |
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JP2008016836A JP2008016836A (ja) | 2008-01-24 |
JP4903089B2 true JP4903089B2 (ja) | 2012-03-21 |
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Family Applications (2)
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JP2007156212A Expired - Fee Related JP4903089B2 (ja) | 2006-07-03 | 2007-06-13 | 偏光性を有する半導体発光素子 |
JP2011217900A Expired - Fee Related JP5294280B2 (ja) | 2006-07-03 | 2011-09-30 | 偏光性を有する半導体発光素子 |
Family Applications After (1)
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JP2011217900A Expired - Fee Related JP5294280B2 (ja) | 2006-07-03 | 2011-09-30 | 偏光性を有する半導体発光素子 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7964877B2 (ja) |
JP (2) | JP4903089B2 (ja) |
KR (1) | KR100818451B1 (ja) |
Families Citing this family (16)
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DE102007053297A1 (de) * | 2007-09-13 | 2009-03-19 | Osram Opto Semiconductors Gmbh | Polarisierte Lichtquelle |
JP2009239217A (ja) * | 2008-03-28 | 2009-10-15 | Nikon Corp | 発光ダイオード素子 |
JP5341446B2 (ja) * | 2008-09-19 | 2013-11-13 | パナソニック株式会社 | 半導体発光素子 |
KR101471859B1 (ko) | 2008-11-27 | 2014-12-11 | 삼성전자주식회사 | 발광 다이오드 |
WO2011049018A1 (ja) * | 2009-10-23 | 2011-04-28 | 日本電気株式会社 | 発光素子、およびそれを備えた投写型表示装置 |
KR101136521B1 (ko) * | 2009-11-26 | 2012-04-17 | 한국과학기술연구원 | 발광 다이오드 및 그 제조방법 |
EP2355151A3 (en) * | 2010-01-29 | 2015-12-30 | Oki Data Corporation | Semiconductor light emitting device and image forming apparatus |
JP5585830B2 (ja) * | 2010-08-24 | 2014-09-10 | スタンレー電気株式会社 | 車両用灯具 |
CN102374466B (zh) * | 2010-08-24 | 2016-03-09 | 斯坦雷电气株式会社 | 灯具 |
JP5585829B2 (ja) * | 2010-08-24 | 2014-09-10 | スタンレー電気株式会社 | 車両用灯具 |
JP2015028967A (ja) * | 2013-07-30 | 2015-02-12 | 株式会社東芝 | 半導体発光素子及び発光装置 |
CN105180011B (zh) * | 2015-08-14 | 2018-06-26 | 唐国云 | 一种提高散热性能的背光器件 |
KR102654925B1 (ko) * | 2016-06-21 | 2024-04-05 | 삼성디스플레이 주식회사 | 디스플레이 장치 및 이의 제조 방법 |
DE102018112335A1 (de) * | 2018-05-23 | 2019-11-28 | Hartmetall-Werkzeugfabrik Paul Horn Gmbh | Magnetronsputtervorrichtung |
WO2024090391A1 (ja) * | 2022-10-24 | 2024-05-02 | 国立研究開発法人理化学研究所 | 深紫外led |
JP7563705B1 (ja) | 2023-05-31 | 2024-10-08 | ナイトライド・セミコンダクター株式会社 | 窒化ガリウム発光素子の製造方法、及び照明装置 |
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-
2006
- 2006-07-03 KR KR1020060061789A patent/KR100818451B1/ko not_active IP Right Cessation
-
2007
- 2007-06-13 JP JP2007156212A patent/JP4903089B2/ja not_active Expired - Fee Related
- 2007-07-03 US US11/822,186 patent/US7964877B2/en not_active Expired - Fee Related
-
2011
- 2011-09-30 JP JP2011217900A patent/JP5294280B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2012004600A (ja) | 2012-01-05 |
KR20080003486A (ko) | 2008-01-08 |
US7964877B2 (en) | 2011-06-21 |
JP2008016836A (ja) | 2008-01-24 |
KR100818451B1 (ko) | 2008-04-01 |
JP5294280B2 (ja) | 2013-09-18 |
US20080012028A1 (en) | 2008-01-17 |
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