JP2006310785A - 横電流抑止の発光ダイオードおよびその製造方法 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000004065 semiconductor Substances 0.000 claims abstract description 110
- 239000000758 substrate Substances 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
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- 239000011810 insulating material Substances 0.000 description 4
- 229910052594 sapphire Inorganic materials 0.000 description 4
- 239000010980 sapphire Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000313 electron-beam-induced deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H—ELECTRICITY
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- 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
- H01L33/36—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 electrodes
- H01L33/38—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 electrodes with a particular shape
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- H—ELECTRICITY
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- 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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- 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
- H01L33/14—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 carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure
- H01L33/145—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 carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure with a current-blocking structure
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Abstract
【解決手段】発光ダイオードは、絶縁基板402、半導体エピタキシャル構造、第1の導電型電極416および第2の導電型電極412を備える。半導体エピタキシャル構造は、少なくとも一つのトレンチ420を有し、絶縁基板402の一部分の上に配置され、トレンチ420の底部が下方に配置されて半導体エピタキシャル構造中の電気絶縁領域が形成されている第1の導電型半導体層404と、第1の導電型半導体層404の一部分の上に配置され、残りの第1の導電型半導体層404を露出するように設けられた活性層406と、活性層406上に配置されている第2の導電型半導体層408とを有する。
【選択図】図4A
Description
402、502、602、702 基板
404、504、604、704 第1の導電型半導体層
406 活性層
408 第2の導電型半導体層
410、506、606、706 透明導電層
412、514、614、714 第2の導電型電極
414、508、608、708 第2の導電型電極パッド
416、510、610、710 第1の導電型電極
418、516 第1の導電型電極パッド
420、512、612、712 トレンチ
616、716 接続部
A、B、C 領域
Claims (8)
- 絶縁基板、半導体エピタキシャル構造、第1の導電型電極および第2の導電型電極を備える横電流抑止の発光ダイオードであって、
前記半導体エピタキシャル構造は、少なくとも一つのトレンチと、前記絶縁基板の一部分の上に配置されて前記トレンチの底部が下方に位置し、前記半導体エピタキシャル構造中に電気絶縁領域が形成されている第1の導電型半導体層と、前記第1の導電型半導体層の一部分の上に配置され、残りの前記第1の導電型半導体層を露出するように設けられた活性層と、前記活性層上に配置されている第2の導電型半導体層とを有し、
前記第1の導電型電極は、前記第1の導電型半導体層の露出部分の上に配置され、
前記第2の導電型電極は、前記第2の導電型半導体層の一部分の上に配置され、
前記トレンチは、前記第1の導電型電極と前記第2の導電型電極との間に配置されていることを特徴とする横電流抑止の発光ダイオード。 - 前記半導体エピタキシャル構造は、前記第1の導電型半導体層と前記絶縁基板との間に配置されているバッファ層をさらに備え、前記トレンチの底部でバッファ層が露出していることを特徴とする請求項1記載の横電流抑止の発光ダイオード。
- 前記トレンチの底部で前記絶縁基板が露出していることを特徴とする請求項1記載の横電流抑止の発光ダイオード。
- 前記トレンチを充填する絶縁層をさらに備えることを特徴とする請求項1記載の横電流抑止の発光ダイオード。
- 絶縁基板、半導体エピタキシャル構造、第1の導電型電極および第2の導電型電極を備える横電流抑止の発光ダイオードであって、
前記半導体エピタキシャル構造は、少なくとも一つのトレンチと、前記絶縁基板の一部分の上に配置されて前記トレンチの底部が下方に位置する第1の導電型半導体層と、前記第1の導電型半導体層の一部分の上に配置され、前記第1の導電型半導体層の残りの部分を露出するように設けられた活性層と、前記活性層上に配置されている第2の導電型半導体層とを有し、
前記第1の導電型電極は、前記第1の導電型半導体層の露出部分の上に配置され、
前記第2の導電型電極は、前記第2の導電型半導体層の一部分の上に配置され、前記トレンチの範囲は、前記第1の導電型電極と前記第2の導電型電極との間にある最短導電経路を包含して、前記第1の導電型電極と前記第2の導電型電極との間にある電流が前記最短導電経路へ流れるのを阻止することを特徴とする横電流抑止の発光ダイオード。 - 絶縁基板を準備する工程と、
前記絶縁基板上に、第1の導電型半導体層、活性層および第2の導電型半導体層が順次堆積された半導体エピタキシャル構造を形成する工程と、
前記第2の導電型半導体層の一部分と前記活性層の一部分とを除去し、下方にある前記第1の導電型半導体層の一部分を露出させる工程と、
前記半導体エピタキシャル構造中に、前記第2の導電型半導体層、前記活性層および前記第1の導電型半導体層を貫通する少なくとも一つのトレンチを形成する工程と、
前記第1の導電型半導体層の露出部分の上に第1の導電型電極を形成し、前記第2の導電型半導体層の一部分の上に第2の導電型電極を形成し、前記第1の導電型電極と前記第2の導電型電極との間に前記トレンチを形成する工程とを含むことを特徴とする横電流抑止の発光ダイオードの製造方法。 - 前記トレンチを形成する工程の後に、誘電体および有機材料からなる群から選ばれた材料からなる絶縁層を前記トレンチに充填する工程をさらに含むことを特徴とする請求項6記載の横電流抑止の発光ダイオードの製造方法。
- 前記トレンチの範囲は、前記第1の導電型電極と前記第2の導電型電極との間にある最短導電経路を包含し、前記第1の導電型電極と前記第2の導電型電極との間にある電流が前記最短導電経路へ流れるのを阻止することを特徴とする請求項6記載の横電流抑止の発光ダイオードの製造方法。
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TW094113734A TWI246210B (en) | 2005-04-28 | 2005-04-28 | Lateral current blocking light emitting diode and method for manufacturing the same |
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JP (1) | JP2006310785A (ja) |
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Cited By (8)
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JP2008258615A (ja) * | 2007-03-30 | 2008-10-23 | Shogen Koden Kofun Yugenkoshi | スタック型透明電極を有する半導体発光装置 |
WO2011142619A2 (ko) * | 2010-05-13 | 2011-11-17 | 주식회사 에피밸리 | 3족 질화물 반도체 발광소자 |
JP2012033953A (ja) * | 2011-10-07 | 2012-02-16 | Stanley Electric Co Ltd | 発光素子及びその製造方法 |
JP2012164782A (ja) * | 2011-02-07 | 2012-08-30 | Nichia Chem Ind Ltd | 半導体発光素子 |
KR101294824B1 (ko) * | 2010-12-31 | 2013-08-08 | 갤럭시아포토닉스 주식회사 | 전류 저지층을 갖는 발광 다이오드 및 발광 다이오드 패키지 |
JP2014175516A (ja) * | 2013-03-11 | 2014-09-22 | Stanley Electric Co Ltd | 発光素子 |
JP2015005701A (ja) * | 2013-06-24 | 2015-01-08 | スタンレー電気株式会社 | 発光素子 |
KR20180118248A (ko) * | 2011-08-09 | 2018-10-30 | 에피스타 코포레이션 | 광전자 소자 및 그 제조방법 |
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Cited By (10)
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JP2008258615A (ja) * | 2007-03-30 | 2008-10-23 | Shogen Koden Kofun Yugenkoshi | スタック型透明電極を有する半導体発光装置 |
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JP2012164782A (ja) * | 2011-02-07 | 2012-08-30 | Nichia Chem Ind Ltd | 半導体発光素子 |
KR20180118248A (ko) * | 2011-08-09 | 2018-10-30 | 에피스타 코포레이션 | 광전자 소자 및 그 제조방법 |
KR102023764B1 (ko) | 2011-08-09 | 2019-09-20 | 에피스타 코포레이션 | 광전자 소자 및 그 제조방법 |
JP2012033953A (ja) * | 2011-10-07 | 2012-02-16 | Stanley Electric Co Ltd | 発光素子及びその製造方法 |
JP2014175516A (ja) * | 2013-03-11 | 2014-09-22 | Stanley Electric Co Ltd | 発光素子 |
JP2015005701A (ja) * | 2013-06-24 | 2015-01-08 | スタンレー電気株式会社 | 発光素子 |
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US7544971B2 (en) | 2009-06-09 |
US20060244005A1 (en) | 2006-11-02 |
TW200638557A (en) | 2006-11-01 |
TWI246210B (en) | 2005-12-21 |
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