JP2014116604A - 発光素子 - Google Patents
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- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components with at least one potential-jump barrier or surface barrier specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- H01L33/10—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 light reflecting structure, e.g. semiconductor Bragg reflector
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- 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
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- 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
- H01L33/385—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 the electrode extending at least partially onto a side surface of the semiconductor body
Abstract
【解決手段】発光素子100Aは、基板110と基板上に互いに離隔して配列され、下部及び上部半導体層122a、126aと活性層124aを有する発光構造物120a、上部電極134a及び下部電極132aを含む複数の発光セルD1と隣接する複数の発光セルのうち一方の第1発光セルの下部電極と、他方の第2発光セルの上部電極とを電気的に接続する導電型相互連結層150と第2発光セルの上部電極と上部半導体層との間から、隣接する複数の発光セルと導電型相互連結層との間に延びて配置された電流遮断層140Aとを含み、複数の発光セルのそれぞれは、第2発光セルの上部電極と電流遮断層との間から、第2発光セルの上部半導体層の上に延びて配置されて、第2発光セルの上部電極と第2発光セルの上部半導体層とを電気的に接続する伝導層160aをさらに含む。
【選択図】図2
Description
Claims (10)
- 基板と、
前記基板上に水平方向に互いに離隔して配列され、それぞれは、互いに異なる導電型の下部及び上部半導体層、前記下部及び上部半導体層の間に配置された活性層を有する発光構造物と、前記上部半導体層上に配置された上部電極と、前記下部半導体層上に配置された下部電極とを含む複数の発光セルと、
隣接する複数の発光セルのうち一方の第1発光セルの下部電極と、前記隣接する複数の発光セルのうち他方の第2発光セルの上部電極とを電気的に接続する導電型相互連結層と、
前記第2発光セルの上部電極と上部半導体層との間から前記隣接する複数の発光セルと前記導電型相互連結層との間に延びて配置された電流遮断層とを含み、
前記複数の発光セルのそれぞれは、
前記第2発光セルの上部電極と前記電流遮断層との間から前記第2発光セルの上部半導体層の上に延びて配置されて、前記第2発光セルの上部電極と第2発光セルの上部半導体層とを電気的に接続する伝導層をさらに含む、発光素子。 - 前記電流遮断層は、
前記第1発光セルの下部半導体層と前記導電型相互連結層との間、前記基板と前記導電型相互連結層との間、及び前記第2発光セルの発光構造物と前記導電型相互連結層との間に配置される、請求項1に記載の発光素子。 - 前記第2発光セルの上部電極は、前記第2発光セルの前記上部半導体層と対向する下部面を有し、
前記第2発光セルの上部電極と上部半導体層との間に配置される前記電流遮断層は、前記上部電極と対向する上部面を有し、
前記電流遮断層の上部面の面積は、前記上部電極の下部面全体の面積以上である、請求項1又は2に記載の発光素子。 - 前記第2発光セルの上部電極と前記第1発光セルの下部電極と前記導電型相互連結層とは一体型層である、請求項1ないし3のいずれかに記載の発光素子。
- 前記一体型層は、前記第2発光セルの前記上部半導体層と対向する下部面を有し、
前記一体型層と前記第2発光セルの上部半導体層との間に配置される前記電流遮断層は、前記一体型層と対向する上部面を有し、
前記電流遮断層の上部面の面積は、前記一体型層の下部面全体の面積以上である、請求項4に記載の発光素子。 - 前記上部半導体層の上部に配置された前記伝導層の面積は、前記上部半導体層の上部面の面積以下である、請求項1ないし5のいずれかに記載の発光素子。
- 前記電流遮断層は、分散ブラッグ反射層である、請求項1に記載の発光素子。
- 前記分散ブラッグ反射層は、屈折率の互いに異なる第1及び第2層が交互に少なくとも1回以上積層された絶縁物質を含む、請求項7に記載の発光素子。
- 前記上部電極は、
互いに重なる第1接着層及び第1ボンディング層を含み、前記第1接着層と前記第1ボンディング層との間に反射層が介在していない、請求項1ないし8のいずれかに記載の発光素子。 - 前記下部電極は、
互いに重なる第2接着層及び第2ボンディング層を含み、前記第2接着層と前記第2ボンディング層との間に反射層が介在していない、請求項1ないし9のいずれかに記載の発光素子。
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KR1020120141503A KR20140073351A (ko) | 2012-12-06 | 2012-12-06 | 발광 소자 |
KR10-2012-0141503 | 2012-12-06 |
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JP2014116604A true JP2014116604A (ja) | 2014-06-26 |
JP2014116604A5 JP2014116604A5 (ja) | 2017-01-12 |
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US (2) | US9337236B2 (ja) |
EP (1) | EP2741338B1 (ja) |
JP (1) | JP2014116604A (ja) |
KR (1) | KR20140073351A (ja) |
CN (1) | CN103855180B (ja) |
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WO2023068264A1 (ja) * | 2021-10-18 | 2023-04-27 | 浜松ホトニクス株式会社 | 光半導体素子 |
Also Published As
Publication number | Publication date |
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US9337236B2 (en) | 2016-05-10 |
KR20140073351A (ko) | 2014-06-16 |
US20160225816A1 (en) | 2016-08-04 |
CN103855180B (zh) | 2019-11-05 |
US20140159071A1 (en) | 2014-06-12 |
US9735199B2 (en) | 2017-08-15 |
CN103855180A (zh) | 2014-06-11 |
EP2741338A1 (en) | 2014-06-11 |
EP2741338B1 (en) | 2020-05-20 |
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