JP5793292B2 - 半導体発光素子 - Google Patents
半導体発光素子 Download PDFInfo
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- JP5793292B2 JP5793292B2 JP2010261646A JP2010261646A JP5793292B2 JP 5793292 B2 JP5793292 B2 JP 5793292B2 JP 2010261646 A JP2010261646 A JP 2010261646A JP 2010261646 A JP2010261646 A JP 2010261646A JP 5793292 B2 JP5793292 B2 JP 5793292B2
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- 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
- H01L33/48—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 body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
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- 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
- H01L33/44—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 coatings, e.g. passivation layer or anti-reflective coating
- H01L33/46—Reflective coating, e.g. dielectric Bragg reflector
-
- 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
- H01L33/40—Materials therefor
- H01L33/42—Transparent materials
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- 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
- H01L33/48—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 body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0016—Processes relating to electrodes
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- 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
- H01L33/36—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
Description
図1及び図2は本発明の第1の実施の形態を示し、図1は半導体発光素子の模式断面図である。
図2に示すように、発光素子1は平面視にて略四角形状に形成される。発光素子1の平面寸法は、例えば、縦寸法及び横寸法がそれぞれ略350μmである。本実施形態においては、上側pパッド電極70及び上側n電極80は、対辺状に配置されている。また、上側pパッド電極70の真下には、p電極30が形成されていない非形成領域32が存在する。
本発明の第2の実施の形態では、発光層25から発せられる光に対する反射率が高い金属からなる反射部として、第1の実施の形態の第1金属層72の代わりに、ボンディング用電極から独立した反射膜を用いる。なお、第1の実施の形態と同様の点については、説明を省略または簡略化する。
第3の実施の形態は、発光層25から発せられる光に対する高い反射率を有する反射部を、反射膜92の代わりにボンディング用p電極及びボンディング用n電極の下部(積層構造の最下層)として設ける点において第2の実施の形態と異なる。なお、第2の実施の形態と同様の点については、説明を省略または簡略化する。
2 発光素子
3 発光素子
4 発光素子
10 基板
22 n型コンタクト層
25 発光層
30 p電極
32 非形成領域
40 絶縁層
50 下側pパッド電極
60 下側n電極
70 上側pパッド電極
80 上側n電極
90 ボンディング用p電極
901 下側電極
902 上側電極
903 ボンディング領域
904 延在領域
905 ボンディング用p電極
91 パッド電極
92 反射膜
101 発光素子
201 発光素子
301 発光素子
401 発光素子
Claims (4)
- 第1導電型層と第2導電型層とに挟まれた発光層を有する半導体積層構造と、
前記第2導電型層にオーミック接触した透明電極と、
前記透明電極上に形成された絶縁層と、
ボンディングワイヤを接続するための接続部と、前記接続部から延在する線状の延在部を含む、前記絶縁層上に形成された上側電極と、
前記透明電極とオーミック接触する第1金属層と、この上に形成され、前記延在部とオーミック接触する第2金属層とを含む下側電極であって、前記絶縁層を貫通し、前記透明電極および前記上側電極の前記延在部との界面においてオーミック接触し、少なくとも、前記第1金属層の材料が、前記上側電極の前記延在部の材料と異なるとともに、前記上側電極の前記接続部よりも面積が小さく、かつ、前記延在部に最先端部を含め複数接続された下側電極と、
前記上側電極の前記延在部を除く前記接続部の裏面に形成され、前記上側電極よりも、発光層から発せられる光に対して反射率が高い金属からなる反射部と、
を有し、
前記発光層の前記第2導電型層側から光を取り出す半導体発光素子。 - 前記反射部は、前記発光層から発せられた光の反射率が前記下側電極の前記第1金属層よりも高い、
請求項1に記載の半導体発光素子。 - 前記反射部は、前記下側電極の前記第1金属層よりも前記絶縁層との密着性が高い、
請求項1あるいは2に記載の半導体発光素子。 - 前記第1導電型層および前記第2導電型層は、それぞれn型半導体層およびp型半導体層であり、
前記n型半導体層、前記p型半導体層、および前記発光層は、窒化物化合物半導体からなり、
前記透明電極は、導電性酸化物からなり、
前記上側電極は、前記p型半導体層用の上側p電極であり、
前記上側p電極の前記延在部は、前記p型半導体層用の第1および第3の延在部を有し、
前記n型半導体層用の上側n電極をさらに有し、
前記上側n電極は、ボンディングワイヤを接続するための接続部と、当該接続部から前記第1および第3の延在部の間に延在する第2の延在部を有する、
請求項1に記載の半導体発光素子。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010261646A JP5793292B2 (ja) | 2010-02-17 | 2010-11-24 | 半導体発光素子 |
US12/929,796 US8552447B2 (en) | 2010-02-17 | 2011-02-16 | Semiconductor light-emitting element |
KR1020110013492A KR101238132B1 (ko) | 2010-02-17 | 2011-02-16 | 반도체 발광 소자 |
CN201110040295.1A CN102169940B (zh) | 2010-02-17 | 2011-02-16 | 半导体发光元件 |
TW100105112A TWI431814B (zh) | 2010-02-17 | 2011-02-16 | 半導體發光元件 |
Applications Claiming Priority (3)
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JP2010032427 | 2010-02-17 | ||
JP2010032427 | 2010-02-17 | ||
JP2010261646A JP5793292B2 (ja) | 2010-02-17 | 2010-11-24 | 半導体発光素子 |
Publications (2)
Publication Number | Publication Date |
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JP2011192960A JP2011192960A (ja) | 2011-09-29 |
JP5793292B2 true JP5793292B2 (ja) | 2015-10-14 |
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JP2010261646A Active JP5793292B2 (ja) | 2010-02-17 | 2010-11-24 | 半導体発光素子 |
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US (1) | US8552447B2 (ja) |
JP (1) | JP5793292B2 (ja) |
KR (1) | KR101238132B1 (ja) |
CN (1) | CN102169940B (ja) |
TW (1) | TWI431814B (ja) |
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US20110198641A1 (en) | 2011-08-18 |
TW201143142A (en) | 2011-12-01 |
JP2011192960A (ja) | 2011-09-29 |
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US8552447B2 (en) | 2013-10-08 |
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