JP4960712B2 - 窒化物系半導体発光素子 - Google Patents
窒化物系半導体発光素子 Download PDFInfo
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- JP4960712B2 JP4960712B2 JP2007016191A JP2007016191A JP4960712B2 JP 4960712 B2 JP4960712 B2 JP 4960712B2 JP 2007016191 A JP2007016191 A JP 2007016191A JP 2007016191 A JP2007016191 A JP 2007016191A JP 4960712 B2 JP4960712 B2 JP 4960712B2
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- 239000004065 semiconductor Substances 0.000 title claims description 124
- 150000004767 nitrides Chemical class 0.000 title claims description 119
- 239000000758 substrate Substances 0.000 claims description 17
- 230000004048 modification Effects 0.000 description 22
- 238000012986 modification Methods 0.000 description 22
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 8
- 229910002601 GaN Inorganic materials 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910052594 sapphire Inorganic materials 0.000 description 5
- 239000010980 sapphire Substances 0.000 description 5
- 238000005530 etching Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 for example Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 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 with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/36—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 electrodes
- H01L33/38—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 electrodes with a particular shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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 system
- H01L33/32—Materials of the light emitting region containing only elements of group III and group V of the periodic system containing nitrogen
Description
まず、図3及び図4を参照して、本発明の第1の実施形態に係る窒化物系半導体LEDの構造について詳細に説明する。
図9及び図10を参照して、本発明の第2の実施形態に係る窒化物系半導体LEDの構造について説明する。ただし、第2の実施形態の構成において、第1の実施形態と同じ部分についての説明は省略し、異なる構成についてのみ説明する。
110 バッファ層
120 n型窒化物半導体層
130 活性層
140 p型窒化物半導体層
150 透明電極
160 n型電極
160a n型電極パッド
165 直線状の溝
170 p型電極
170' p型連結電極
170a p型電極パッド
Claims (9)
- 基板と、
前記基板上に形成されたn型窒化物半導体層と、
前記n型窒化物半導体層の所定領域上に形成された活性層と、
前記活性層上に形成されたp型窒化物半導体層と、
前記p型窒化物半導体層上に形成された透明電極と、
前記透明電極上に形成されたp型電極パッドと、
前記p型電極パッドから伸びて形成されたp型連結電極と、
前記p型連結電極の一端から延設されて、n型電極パッド側に伸びており、隣接した透明電極の一辺と平行に形成されたp型電極と、
前記活性層が形成されていないn型窒化物半導体層上に、前記p型電極パッドと対向するように形成されたn型電極パッドと、
前記n型電極パッドから延設されて、前記n型電極パッドに隣接した透明電極の一辺と平行に、且つ、前記透明電極の当該一辺にわたって形成されたn型電極と
を備え、
前記透明電極は、前記n型電極パッドから前記p型電極パッドに向かい、前記p型窒化物半導体層の上面を露出させる直線状の溝が形成され、
前記溝には電極パッドが形成されず、
前記p型電極と前記直線状の溝とは互いに交互に形成され、
前記p型連結電極は、前記p型電極パッドに連結した部分から離れるに従って、前記p型電極パッドに隣接した前記透明電極の一辺から徐々に離間する直線状または曲線状に形成されたことを特徴とする窒化物系半導体発光素子。 - 基板と、
前記基板上に形成されたn型窒化物半導体層と、
前記n型窒化物半導体層の所定領域上に形成された活性層と、
前記活性層上に形成されたp型窒化物半導体層と、
前記p型窒化物半導体層上に形成された透明電極と、
前記透明電極上に形成されたp型電極パッドと、
前記p型電極パッドから伸びて形成されたp型連結電極と、
前記p型連結電極の一端から延設されて、n型電極パッド側に伸びており、隣接した透明電極の一辺と平行に形成されたp型電極と、
前記活性層が形成されていないn型窒化物半導体層上に、前記p型電極パッドと対向するように形成されたn型電極パッドと、
前記n型電極パッドから延設されて、前記n型電極パッドに隣接した透明電極の一辺と平行に、且つ、前記透明電極の当該一辺にわたって形成されたn型電極と
を備え、
前記透明電極は、前記n型電極パッドから前記p型電極パッドに向かい、前記n型窒化物半導体層の上面を露出させる直線状の溝が形成され、
前記溝には電極パッドが形成されず、
前記p型電極と前記直線状の溝とは互いに交互に形成され、
前記p型連結電極は、前記p型電極パッドに連結した部分から離れるに従って、前記p型電極パッドに隣接した前記透明電極の一辺から徐々に離間する直線状または曲線状に形成されたことを特徴とする窒化物系半導体発光素子。 - 前記直線状の溝は、前記p型電極の間に形成されることを特徴とする請求項1または2に記載の窒化物系半導体発光素子。
- 前記直線状の溝は、互いに対向するように形成された前記n型電極パッドと前記p型電極パッドとを基準に、両側が互いに対称的に形成されたことを特徴とする請求項3に記載の窒化物系半導体発光素子。
- 前記活性層は、前記n型窒化物半導体層上に形成されるものであって、前記n型窒化物半導体層の四方の最外辺から内方に所定間隔をおいて形成されたことを特徴とする請求項1から4のいずれか一項に記載の窒化物系半導体発光素子。
- 前記p型連結電極は、前記p型電極パッドに隣接した透明電極の一辺に対して90゜未満の傾斜角を有して線形に形成される
請求項1から5のいずれか一項に記載の窒化物系半導体発光素子。 - 前記p型電極は、その先端部が、隣接した前記n型電極パッドの一辺と対向するように傾斜したことを特徴とする請求項1から6のいずれか一項に記載の窒化物系半導体発光素子。
- 前記p型電極パッドから伸びて、前記p型電極パッドに隣接した透明電極の一辺に沿って形成されたp型電極をさらに備えることを特徴とする請求項1から7のいずれか一項に記載の窒化物系半導体発光素子。
- 前記基板と前記n型窒化物半導体層との界面にバッファ層をさらに備えることを特徴とする請求項1から8のいずれか一項に記載の窒化物系半導体発光素子。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2006-0030502 | 2006-04-04 | ||
KR1020060030502A KR100833309B1 (ko) | 2006-04-04 | 2006-04-04 | 질화물계 반도체 발광소자 |
Publications (2)
Publication Number | Publication Date |
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JP2007281426A JP2007281426A (ja) | 2007-10-25 |
JP4960712B2 true JP4960712B2 (ja) | 2012-06-27 |
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JP2007016191A Active JP4960712B2 (ja) | 2006-04-04 | 2007-01-26 | 窒化物系半導体発光素子 |
Country Status (4)
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US (1) | US7531841B2 (ja) |
JP (1) | JP4960712B2 (ja) |
KR (1) | KR100833309B1 (ja) |
CN (1) | CN101051662B (ja) |
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JP4415575B2 (ja) * | 2003-06-25 | 2010-02-17 | 日亜化学工業株式会社 | 半導体発光素子及びそれを用いた発光装置 |
JP4449405B2 (ja) * | 2003-10-20 | 2010-04-14 | 日亜化学工業株式会社 | 窒化物半導体発光素子およびその製造方法 |
KR100576853B1 (ko) * | 2003-12-18 | 2006-05-10 | 삼성전기주식회사 | 질화물 반도체 발광소자 |
KR100506740B1 (ko) * | 2003-12-23 | 2005-08-08 | 삼성전기주식회사 | 질화물 반도체 발광소자 및 그 제조방법 |
JP2005217331A (ja) * | 2004-01-30 | 2005-08-11 | Nichia Chem Ind Ltd | 半導体発光素子 |
US7615798B2 (en) * | 2004-03-29 | 2009-11-10 | Nichia Corporation | Semiconductor light emitting device having an electrode made of a conductive oxide |
JP2006156590A (ja) * | 2004-11-26 | 2006-06-15 | Mitsubishi Cable Ind Ltd | 発光ダイオード |
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KR100833309B1 (ko) | 2008-05-28 |
JP2007281426A (ja) | 2007-10-25 |
CN101051662A (zh) | 2007-10-10 |
US20070228388A1 (en) | 2007-10-04 |
US7531841B2 (en) | 2009-05-12 |
CN101051662B (zh) | 2010-04-07 |
KR20070099269A (ko) | 2007-10-09 |
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