JP2017098347A - 垂直共振器型発光素子 - Google Patents
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- 239000004065 semiconductor Substances 0.000 claims abstract description 51
- 239000000203 mixture Substances 0.000 claims abstract description 42
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 15
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
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- 238000000034 method Methods 0.000 description 15
- 229910002601 GaN Inorganic materials 0.000 description 12
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 11
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- 239000010409 thin film Substances 0.000 description 3
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 2
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- -1 AlN Chemical class 0.000 description 2
- 229910006404 SnO 2 Inorganic materials 0.000 description 2
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- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- GEIAQOFPUVMAGM-UHFFFAOYSA-N ZrO Inorganic materials [Zr]=O GEIAQOFPUVMAGM-UHFFFAOYSA-N 0.000 description 1
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- 238000005566 electron beam evaporation Methods 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18308—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] having a special structure for lateral current or light confinement
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- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
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- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18308—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] having a special structure for lateral current or light confinement
- H01S5/18322—Position of the structure
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- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
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- H01S5/00—Semiconductor lasers
- H01S5/30—Structure or shape of the active region; Materials used for the active region
- H01S5/34—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers
- H01S5/343—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
- H01S5/34333—Structure or shape of the active region; Materials used for the active region comprising quantum well or superlattice structures, e.g. single quantum well [SQW] lasers, multiple quantum well [MQW] lasers or graded index separate confinement heterostructure [GRINSCH] lasers in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser with a well layer based on Ga(In)N or Ga(In)P, e.g. blue laser
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Abstract
Description
前記第1多層膜反射器上に形成され、第1の導電型の半導体層、量子井戸層を含む活性層及び前記第1の導電型とは反対の導電型の第2の導電型の半導体層からなる半導体構造層と、
前記第2の導電型の半導体層上に形成された絶縁性の電流狭窄層と、
前記電流狭窄層に形成された前記電流狭窄層を貫通する貫通開口部と、
前記貫通開口部及び前記電流狭窄層を覆い、前記貫通開口部を介して前記第2の導電型の半導体層に接する透明電極と、
前記透明電極上に形成された第2多層膜反射器と、
前記貫通開口部の縁に接して形成され且つ前記電流狭窄層と前記透明電極とが混合した組成混合層と、を有することを特徴としている。
面発光レーザ10において、発光波長が400〜450nmとなるように半導体構造層SEMを設計した。電導性ミラーの第1多層膜反射器13がGaN/InAlNの40ペア積層から成り、さらに、誘電体ミラーの第2多層膜反射器25がNb2O5/SiO2の8ペア積層から成るように設計した。
13 第1多層膜反射器
15 n型半導体層(第1の半導体層)
17 活性層
19 p型半導体層(第2の半導体層)
21 電流狭窄層
24 組成混合層
25 第2多層膜反射器
OP1 貫通開口部
SEM 半導体構造層
n−Co nコンタクト層
p−Co pコンタクト層
Claims (9)
- 基板上に形成された第1多層膜反射器と、
前記第1多層膜反射器上に形成され、第1の導電型の半導体層、活性層及び前記第1の導電型とは反対の導電型の第2の導電型の半導体層からなる半導体構造層と、
前記第2の導電型の半導体層上に形成された絶縁性の電流狭窄層と、
前記電流狭窄層に形成された前記電流狭窄層を貫通する貫通開口部と、
前記貫通開口部及び前記電流狭窄層を覆い、前記貫通開口部を介して前記第2の導電型の半導体層に接する透明電極と、
前記透明電極上に形成された第2多層膜反射器と、
前記貫通開口部の縁に接して形成され且つ前記電流狭窄層と前記透明電極とが混合した組成混合層と、を有することを特徴とする垂直共振器型発光素子。 - 前記組成混合層が前記第2の導電型の半導体層上に環状に形成されていることを特徴とする請求項1に記載の垂直共振器型発光素子。
- 前記電流狭窄層は前記組成混合層に向かって薄くなるテーパー状断面形状を有することを特徴とする請求項1または2に記載の垂直共振器型発光素子。
- 前記電流狭窄層の前記テーパー状断面形状のテーパー角が0度を超え45度以下の範囲にあることを特徴とする請求項3に記載の垂直共振器型発光素子。
- 前記電流狭窄層がSiO2から成り、前記透明電極が金属酸化物から成ることを特徴とする請求項1乃至4のいずれか1に記載の垂直共振器型発光素子。
- 前記組成混合層に隣接する前記貫通開口部の前記電流狭窄層の膜厚が20nm以下であることを特徴とする請求項1乃至5のいずれか1に記載の垂直共振器型発光素子。
- 前記電流狭窄層の前記貫通開口部に同軸で配された上部開口部を有し且つ前記電流狭窄層の前記テーパー状断面形状の部分の上において前記組成混合層に向かって薄くなるテーパー状断面形状を前記上部開口部の縁に有する絶縁層と、
前記上部開口部を覆い且つ前記透明電極に接する駆動用透明電極と、をさらに有することを特徴とする請求項1乃至6のいずれか1に記載の垂直共振器型発光素子。 - 前記絶縁層の前記テーパー状断面形状のテーパー角は、前記電流狭窄層の前記テーパー状断面形状のテーパー角より大きいことを特徴とする請求項7に記載の垂直共振器型発光素子。
- 前記透明電極と前記駆動用透明電極とにそれぞれに独立して接続されたパッド電極と駆動用パッド電極とをさらに有することを特徴とする請求項7または8に記載の垂直共振器型発光素子。
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JP2015227165A JP6700027B2 (ja) | 2015-11-20 | 2015-11-20 | 垂直共振器型発光素子 |
US15/347,267 US9972972B2 (en) | 2015-11-20 | 2016-11-09 | Vertical cavity light emitting device |
EP16199102.1A EP3171466B1 (en) | 2015-11-20 | 2016-11-16 | Vertical cavity light emitting device |
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JP6135559B2 (ja) * | 2014-03-10 | 2017-05-31 | ソニー株式会社 | 半導体発光素子および半導体発光素子の製造方法ならびに半導体素子 |
KR102654925B1 (ko) * | 2016-06-21 | 2024-04-05 | 삼성디스플레이 주식회사 | 디스플레이 장치 및 이의 제조 방법 |
JP7180984B2 (ja) * | 2018-03-01 | 2022-11-30 | 株式会社ニューフレアテクノロジー | 気相成長方法 |
WO2020026573A1 (ja) * | 2018-07-31 | 2020-02-06 | ソニー株式会社 | 面発光半導体レーザ |
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US20170149213A1 (en) | 2017-05-25 |
US9972972B2 (en) | 2018-05-15 |
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