JP2006324669A - 窒化物半導体発光素子 - Google Patents
窒化物半導体発光素子 Download PDFInfo
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- JP2006324669A JP2006324669A JP2006137673A JP2006137673A JP2006324669A JP 2006324669 A JP2006324669 A JP 2006324669A JP 2006137673 A JP2006137673 A JP 2006137673A JP 2006137673 A JP2006137673 A JP 2006137673A JP 2006324669 A JP2006324669 A JP 2006324669A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/816—Bodies having carrier transport control structures, e.g. highly-doped semiconductor layers or current-blocking structures
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/81—Bodies
- H10H20/822—Materials of the light-emitting regions
- H10H20/824—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP
- H10H20/825—Materials of the light-emitting regions comprising only Group III-V materials, e.g. GaP containing nitrogen, e.g. GaN
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Abstract
【解決手段】窒化物半導体発光素子20はサファイア基板上21に形成されたn型窒化物半導体層24a、24b及びp型窒化物半導体層28とその間に形成された活性層27を含む。n型窒化物半導体層24a,24bは、上記活性層から遠い順に位置した第1及び第2のn型GaN層24a,24bを含み、上記第1及び第2のn型GaN層24a,24bの間に位置して各界面で2次元電子ガス層を形成するAlxGa1-xN(0<x<1)層23をさらに含む。
【選択図】 図2
Description
22 バッファー層
23 AlドープされたGaN層 (AlドープGaN層)
24a、24b n型GaN層
25 AlN層
26 AlGaN層
27 活性層
28 p型GaN層
29a n側電極
29b p側電極
Claims (14)
- 基板上に形成されたn型及びp型窒化物半導体層とその間に形成された活性層を含む窒化物発光素子において、
前記n型窒化物半導体層は、前記活性層から遠い順に位置した第1及び第2のn型GaN層を含み、
前記第1及び第2のn型GaN層との間に位置して各界面において2次元電子ガス層を形成するAlx Ga1-xN(0<x<1)層をさらに含むことを特徴とする窒化物半導体発光素子。 - 前記Alx Ga1-xN(0<x<1)層は約100〜500Åの厚さを有することを特徴とする請求項1に記載の窒化物半導体発光素子。
- 前記Alx Ga1-xN(0<x<1)層のxの範囲は約0.05〜0.5であることを特徴とする請求項1又は2に記載の窒化物半導体発光素子。
- 前記Alx Ga1-xN(0<x<1)層は故意的に不純物がドープされていないアンドープ層であることを特徴とする請求項1〜3のいずれか一項に記載の窒化物半導体発光素子。
- 前記Alx Ga1-xN(0<x<1)層と前記第1または第2のn型GaN層との間にAlN層をさらに含むことを特徴とする請求項1〜4のいずれか一項に記載の窒化物半導体発光素子。
- 前記AlN層は約5〜30Åの厚さを有することを特徴とする請求項5に記載の窒化物半導体発光素子。
- 前記基板と前記第1のn型GaN層との間にAlが1%未満にドープされたGaN層をさらに含むことを特徴とする請求項1〜6のいずれか一項に記載の窒化物半導体発光素子。
- 前記窒化物半導体発光素子は前記n型窒化物層の一部領域が露出されるようにメサエッチングされたことを特徴とする請求項1〜7のいずれか一項に記載の窒化物半導体発光素子。
- 前記メサエッチングされたn型窒化物半導体層の露出面は前記2次元電子ガス層が設けられる前記第1のn型GaN層の界面とほぼ同一な平面を成すように形成されたことを特徴とする請求項8に記載の窒化物半導体発光素子。
- 前記メサエッチングされたn型窒化物半導体層の露出面は前記2次元電子ガス層が設けられる前記第1のn型GaN層の界面より低く位置するように形成されたことを特徴とする請求項8又は9に記載の窒化物半導体発光素子。
- 前記第1のn型GaN層と前記Alx Ga1-xN(0<x<1)層との間に形成され、故意的に不純物がドープされていない高抵抗GaN層をさらに含み、2次元電子ガス層が前記高抵抗GaN層界面で形成されることを特徴とする請求項1〜10のいずれか一項に記載の窒化物半導体発光素子。
- 前記窒化物半導体発光素子は前記n型窒化物層の一部領域が露出されるようメサエッチングされ、前記高抵抗GaN層は前記メサエッチングされたn型窒化物半導体層の露出面として提供されることを特徴とする請求項11に記載の窒化物半導体発光素子。
- 前記高抵抗GaN層は80〜200Åの厚さを有することを特徴とする請求項11又は12に記載の窒化物半導体発光素子。
- 前記基板は伝導性基板であり、前記窒化物半導体発光素子は対向する両面に電極が備えられる垂直構造であることを特徴とする請求項1〜13のいずれか一項に記載の窒化物半導体発光素子。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050042090A KR100638818B1 (ko) | 2005-05-19 | 2005-05-19 | 질화물 반도체 발광소자 |
| KR10-2005-0042090 | 2005-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2006324669A true JP2006324669A (ja) | 2006-11-30 |
| JP5014671B2 JP5014671B2 (ja) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2006137673A Active JP5014671B2 (ja) | 2005-05-19 | 2006-05-17 | 窒化物半導体発光素子 |
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| Country | Link |
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| US (1) | US7479661B2 (ja) |
| JP (1) | JP5014671B2 (ja) |
| KR (1) | KR100638818B1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007149791A (ja) * | 2005-11-24 | 2007-06-14 | Univ Meijo | 半導体発光素子および半導体発光素子の作成方法 |
| WO2009031858A3 (en) * | 2007-09-06 | 2009-05-14 | Lg Innotek Co Ltd | Semiconductor light emitting device and method of fabricating the same |
| JP2012224539A (ja) * | 2011-04-19 | 2012-11-15 | Samsung Electronics Co Ltd | GaN薄膜構造物、その製造方法、及びそれを含む半導体素子 |
| JP2013069900A (ja) * | 2011-09-22 | 2013-04-18 | Nichia Chem Ind Ltd | 発光素子 |
| JP2018534781A (ja) * | 2015-11-09 | 2018-11-22 | エルジー イノテック カンパニー リミテッド | 紫外線発光素子及び発光素子パッケージ |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372137C (zh) * | 2005-05-27 | 2008-02-27 | 晶能光电(江西)有限公司 | 具有上下电极结构的铟镓铝氮发光器件及其制造方法 |
| US9082892B2 (en) * | 2007-06-11 | 2015-07-14 | Manulius IP, Inc. | GaN Based LED having reduced thickness and method for making the same |
| CN102334204B (zh) | 2010-01-06 | 2013-11-20 | 松下电器产业株式会社 | 氮化物系半导体发光元件及其制造方法 |
| KR101754900B1 (ko) * | 2010-04-09 | 2017-07-06 | 엘지이노텍 주식회사 | 발광 소자 |
| KR20130008295A (ko) * | 2011-07-12 | 2013-01-22 | 삼성전자주식회사 | 질화물 발광소자 |
| KR101961798B1 (ko) * | 2011-12-27 | 2019-03-25 | 엘지이노텍 주식회사 | 발광 소자 |
| FR3001335A1 (fr) | 2013-01-22 | 2014-07-25 | Commissariat Energie Atomique | Structure semiconductrice et procede de fabrication d'une structure semiconductrice |
| KR102059033B1 (ko) * | 2013-02-04 | 2019-12-24 | 엘지이노텍 주식회사 | 발광소자 |
| KR101772815B1 (ko) * | 2016-04-25 | 2017-08-29 | 고려대학교 산학협력단 | 고효율 Ga-polar 수직 발광 다이오드 소자 및 그 제조방법 |
| CN120603409A (zh) * | 2025-08-07 | 2025-09-05 | 山西中科潞安紫外光电科技有限公司 | 一种高效率深紫外led芯片 |
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2005
- 2005-05-19 KR KR1020050042090A patent/KR100638818B1/ko not_active Expired - Fee Related
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2006
- 2006-05-17 JP JP2006137673A patent/JP5014671B2/ja active Active
- 2006-05-18 US US11/435,751 patent/US7479661B2/en active Active
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007149791A (ja) * | 2005-11-24 | 2007-06-14 | Univ Meijo | 半導体発光素子および半導体発光素子の作成方法 |
| WO2009031858A3 (en) * | 2007-09-06 | 2009-05-14 | Lg Innotek Co Ltd | Semiconductor light emitting device and method of fabricating the same |
| US8299493B2 (en) | 2007-09-06 | 2012-10-30 | Lg Innotek Co., Ltd. | Semiconductor light emitting device and method of fabricating the same |
| JP2012224539A (ja) * | 2011-04-19 | 2012-11-15 | Samsung Electronics Co Ltd | GaN薄膜構造物、その製造方法、及びそれを含む半導体素子 |
| KR101761309B1 (ko) * | 2011-04-19 | 2017-07-25 | 삼성전자주식회사 | GaN 박막 구조물, 그의 제조 방법, 및 그를 포함하는 반도체 소자 |
| JP2013069900A (ja) * | 2011-09-22 | 2013-04-18 | Nichia Chem Ind Ltd | 発光素子 |
| JP2018534781A (ja) * | 2015-11-09 | 2018-11-22 | エルジー イノテック カンパニー リミテッド | 紫外線発光素子及び発光素子パッケージ |
| US10971648B2 (en) | 2015-11-09 | 2021-04-06 | Lg Innotek Co., Ltd. | Ultraviolet light-emitting element and light-emitting element package |
Also Published As
| Publication number | Publication date |
|---|---|
| US7479661B2 (en) | 2009-01-20 |
| JP5014671B2 (ja) | 2012-08-29 |
| KR100638818B1 (ko) | 2006-10-27 |
| US20060261367A1 (en) | 2006-11-23 |
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