JP2010114403A - 窒化物半導体素子 - Google Patents
窒化物半導体素子 Download PDFInfo
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- JP2010114403A JP2010114403A JP2009010310A JP2009010310A JP2010114403A JP 2010114403 A JP2010114403 A JP 2010114403A JP 2009010310 A JP2009010310 A JP 2009010310A JP 2009010310 A JP2009010310 A JP 2009010310A JP 2010114403 A JP2010114403 A JP 2010114403A
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- 150000004767 nitrides Chemical class 0.000 title claims abstract description 162
- 239000004065 semiconductor Substances 0.000 title claims abstract description 98
- 230000000903 blocking effect Effects 0.000 claims abstract description 30
- 230000010287 polarization Effects 0.000 claims abstract description 26
- 230000004888 barrier function Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 11
- 230000007423 decrease Effects 0.000 claims description 11
- 229910052738 indium Inorganic materials 0.000 claims description 9
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 6
- 229910002704 AlGaN Inorganic materials 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 229910052594 sapphire Inorganic materials 0.000 description 4
- 239000010980 sapphire Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910010093 LiAlO Inorganic materials 0.000 description 1
- 229910020068 MgAl Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000002248 hydride vapour-phase epitaxy Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000005428 wave function Effects 0.000 description 1
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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
- H01L33/04—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 quantum effect structure or superlattice, e.g. tunnel junction
- H01L33/06—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 quantum effect structure or superlattice, e.g. tunnel junction within the light emitting region, e.g. quantum confinement structure or tunnel barrier
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Abstract
【解決手段】本発明の一実施形態は、n型窒化物半導体層と、p型窒化物半導体層と、上記n型及びp型窒化物半導体層の間に形成され、量子井戸層及び量子障壁層が交互に積層されて成る活性層と、上記活性層及び上記p型窒化物半導体層の間に形成され、上記量子障壁層よりバンドギャップエネルギーが高い物質から成る複数の第1窒化物層と上記第1窒化物層よりバンドギャップエネルギーが低い物質から成る複数の第2窒化物層が交互に積層された構造を備える電子遮断層とを含み、上記複数の第1窒化物層は所定の勾配を有して傾いたエネルギー準位を備えるが、上記p型窒化物半導体層に隣接したものであるほどエネルギー準位の勾配が小さくなることを特徴とする窒化物半導体素子を提供する。
【選択図】 図4
Description
102 n型窒化物半導体層
103 活性層
104 電子遮断層
105 p型窒化物半導体層
106a、106b n型及びp型電極
103a 量子障壁層
103b 量子井戸層
104a 第1窒化物層
104b 第2窒化物層
Claims (12)
- n型窒化物半導体層と、
p型窒化物半導体層と、
前記n型及びp型窒化物半導体層の間に形成され、量子井戸層及び量子障壁層が交互に積層されて成る活性層と、
前記活性層及び前記p型窒化物半導体層の間に形成され、前記量子障壁層よりバンドギャップエネルギーが高い物質から成る複数の第1窒化物層と前記第1窒化物層よりバンドギャップエネルギーが低い物質から成る複数の第2窒化物層が交互に積層された構造を備える電子遮断層と、を含み、
前記複数の第1窒化物層は所定の勾配を有して傾いたエネルギー準位を備えるが、前記p型窒化物半導体層に隣接したものであるほどエネルギー準位の勾配が小さくなることを特徴とする窒化物半導体素子。 - 前記複数の第1窒化物層は、バンドギャップエネルギーが相互同一であることを特徴とする請求項1に記載の窒化物半導体素子。
- 前記複数の第1窒化物層は、前記p型窒化物半導体層に隣接したものであるほどそれぞれに隣接した前記第2窒化物層との正味分極電荷量の差異が減少することを特徴とする請求項2に記載の窒化物半導体素子。
- 前記第1窒化物層は、AlxInyGa(1−x−y)N(0<x≦1、0≦y≦1、0<x+y≦1)から成ることを特徴とする請求項3に記載の窒化物半導体素子。
- 前記複数の第1窒化物層は、前記p型窒化物半導体層に隣接したものであるほどアルミニウム及びインジウムの含量が高いことを特徴とする請求項4に記載の窒化物半導体素子。
- 前記第1窒化物層は、伝導帯域を基準として前記p型窒化物半導体層方向に行くほどエネルギー準位が増加する傾向の勾配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素子。
- 前記複数の第1窒化物層は、前記p型窒化物半導体層に隣接したものであるほどエネルギー準位が低くなることを特徴とする請求項1に記載の窒化物半導体素子。
- 前記複数の第1窒化物層は、前記p型窒化物半導体層に隣接したものであるほど それぞれに隣接した前記第2窒化物層との正味分極電荷量差異が減少することを特徴とする請求項7に記載の窒化物半導体素子。
- 前記第2窒化物層は、前記量子障壁層とバンドギャップエネルギーが同一であ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半導体素子。
- 前記第1及び第2窒化物層の交互積層構造は、超格子構造であることを特徴とする請求項1から9のいずれか一項に記載の窒化物半導体素子。
- 前記第2窒化物層は、エネルギー準位が相互異なる2つ以上の領域を備えることを特徴とする請求項1から10のいずれか一項に記載の窒化物半導体素子。
- 前記複数の第1窒化物層は、エネルギー準位の勾配が相互同一なものを2つ以上備え、エネルギー準位の勾配が相互同一なもの同士で相互隣接して形成されたことを特徴とする請求項1に記載の窒化物半導体素子。
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KR1020080110647A KR101018088B1 (ko) | 2008-11-07 | 2008-11-07 | 질화물 반도체 소자 |
KR10-2008-0110647 | 2008-11-07 |
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JP2010114403A true JP2010114403A (ja) | 2010-05-20 |
JP4971377B2 JP4971377B2 (ja) | 2012-07-11 |
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US (1) | US7868316B2 (ja) |
JP (1) | JP4971377B2 (ja) |
KR (1) | KR101018088B1 (ja) |
CN (1) | CN101740681B (ja) |
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KR20130129683A (ko) * | 2012-05-21 | 2013-11-29 | 포항공과대학교 산학협력단 | 그레이드 초격자 구조의 전자 차단층을 갖는 반도체 발광 소자 |
KR20140057799A (ko) * | 2012-11-05 | 2014-05-14 | 엘지이노텍 주식회사 | 발광 소자 |
KR20140084621A (ko) * | 2012-12-27 | 2014-07-07 | 엘지이노텍 주식회사 | 발광소자 및 이를 포함하는 발광소자 패키지 |
KR20150140025A (ko) * | 2014-06-05 | 2015-12-15 | 엘지이노텍 주식회사 | 발광소자 |
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KR20180058564A (ko) * | 2016-11-24 | 2018-06-01 | 엘지이노텍 주식회사 | 반도체 소자 및 이를 포함하는 반도체 소자 패키지 |
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JP2011233751A (ja) * | 2010-04-28 | 2011-11-17 | Panasonic Corp | 窒化物半導体トランジスタ |
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KR102692637B1 (ko) * | 2016-11-24 | 2024-08-06 | 쑤저우 레킨 세미컨덕터 컴퍼니 리미티드 | 반도체 소자 및 이를 포함하는 반도체 소자 패키지 |
JP2022121383A (ja) * | 2021-02-08 | 2022-08-19 | 隆達電子股▲ふん▼有限公司 | 発光素子パッケージ、表示装置及び表示装置の製造方法 |
JP7381619B2 (ja) | 2021-02-08 | 2023-11-15 | 隆達電子股▲ふん▼有限公司 | 表示装置及び表示装置の製造方法 |
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KR101018088B1 (ko) | 2011-02-25 |
US20100117061A1 (en) | 2010-05-13 |
CN101740681A (zh) | 2010-06-16 |
CN101740681B (zh) | 2012-05-30 |
JP4971377B2 (ja) | 2012-07-11 |
KR20100051474A (ko) | 2010-05-17 |
US7868316B2 (en) | 2011-01-11 |
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