JP2016051883A - 半導体発光素子および光結合装置 - Google Patents
半導体発光素子および光結合装置 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 42
- 230000003287 optical effect Effects 0.000 title claims abstract description 37
- 230000008878 coupling Effects 0.000 title claims abstract description 34
- 238000010168 coupling process Methods 0.000 title claims abstract description 34
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 34
- 230000004888 barrier function Effects 0.000 claims abstract description 26
- 239000013078 crystal Substances 0.000 abstract description 24
- 230000007547 defect Effects 0.000 abstract description 19
- 230000035755 proliferation Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 33
- 230000007423 decrease Effects 0.000 description 16
- 238000005253 cladding Methods 0.000 description 8
- 239000000758 substrate Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- IBEFSUTVZWZJEL-UHFFFAOYSA-N trimethylindium Chemical compound C[In](C)C IBEFSUTVZWZJEL-UHFFFAOYSA-N 0.000 description 5
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 description 4
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000001451 molecular beam epitaxy Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 108091006149 Electron carriers Proteins 0.000 description 1
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical class O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/12—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto
- H01L31/16—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources
- H01L31/165—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof structurally associated with, e.g. formed in or on a common substrate with, one or more electric light sources, e.g. electroluminescent light sources, and electrically or optically coupled thereto the semiconductor device sensitive to radiation being controlled by the light source or sources the semiconductor sensitive to radiation being characterised by at least one potential-jump or surface barrier
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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
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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Abstract
【解決手段】半導体発光素子は、Inx(Ga1−yAly)1−xAs(但し、0<x≦0.2、0<y<1)からなるn層(n:1以上10以下の整数)の井戸層と、前記井戸層と交互に積層されたGa1−zAlzAs(但し、0<z<1)からなる(n+1)層の障壁層と、を含む歪量子井戸構造を含む発光層を有する半導体積層体を備え、前記発光層は、700nm以上かつ870nm以下のピーク波長を有する光を放出する。
【選択図】図3
Description
図1(a)は第1の実施形態にかかる半導体発光素子の模式平面図、図1(b)はA−A線に沿った模式断面図、である。
半導体発光素子50は、半導体基板37と、半導体基板37上に設けられ発光層25を含む半導体積層体40と、第1電極20と、第2電極42と、を有する。
半導体積層体40は、発光層25を有する。また発光層25は、n(n:1以上の整数)層の井戸層26と井戸層26と交互に積層された(n+1)層の障壁層27とからなる量子井戸構造を含む。発光層25から放出される放出光は、700〜870nmの範囲のピーク波長を有するものとする。
縦軸は臨界膜厚hc(nm)、横軸はIn組成比(%)、である。井戸層26の格子定数と障壁層27の格子定数とが不整合であっても、それぞれの層が薄いので、その弾性限界範囲内で歪むことにより臨界膜厚以下であれば、格子整合条件に制約されずに結晶性が良好に保たれる。但し、x>0.2となると、図2(b)に示した構造において、エピタキシャル成長温度と室温との温度差がもたらすそれぞれの材料の線膨張係数差による圧縮または引っ張り応力と、それぞれの層厚とが弾性限界を越える。このため、井戸層26のIn組成比xを0.2、膜厚を5nmにした場合、クロスハッチが入り、結晶性が低下し、計算結果と実際の複数のヘテロエピタキシャル成長での結晶性低下はほほ一致し、臨界膜厚を超えるような構造は著しく結晶性が低下するので好ましくないことが判明した。
縦軸はAl組成比y、横軸はIn組成比x、である。なお、井戸層26は、その厚さTw1、Tw2を5nm、数を2つ、とする。また、障壁層27は、その厚さTb1、Tb2、Tb3を15nm、数を3つ、とする。たとえば、波長を770nmに設定する場合、In組成比xが0よりも大きくかつ0.10以下において、Al組成比yは、0.085よりも大きくかつ0.214以下とすることができる。
Claims (6)
- Inx(Ga1−yAly)1−xAs(但し、0<x≦0.2、0<y<1)からなるn層(n:1以上10以下の整数)の井戸層と、前記井戸層と交互に積層されたGa1−zAlzAs(但し、0<z<1)からなる(n+1)層の障壁層と、を含む歪量子井戸構造を含む発光層を有する半導体積層体を備え、
前記発光層は、700nm以上かつ870nm以下のピーク波長を有する光を放出する半導体発光素子。 - それぞれの井戸層の厚さは、11nm以下であり、
それぞれの障壁層の厚さは、10nm以上かつ50nm以下である請求項1記載の半導体発光素子。 - 0.02≦xである請求項1または2に記載の半導体発光素子。
- 0.04≦xである請求項1または2に記載の半導体発光素子。
- 前記半導体積層体は、前記発光層から放出される前記放出光を反射可能なブラッグ反射器をさらに有する請求項1〜4のいずれか1つに記載の半導体発光素子。
- 入力電気信号により駆動され、請求項1〜5のいずれか1つに記載の半導体発光素子と、
前記光を受光し、電気信号に変換して出力する半導体受光素子と、
を備え、
前記半導体発光素子と前記半導体受光素子とは、電気的に絶縁された光結合装置。
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JP2014178207A JP6325948B2 (ja) | 2014-09-02 | 2014-09-02 | 半導体発光素子および光結合装置 |
US14/819,196 US9847447B2 (en) | 2014-09-02 | 2015-08-05 | Semiconductor light-emitting element and optical coupling device |
TW104128913A TWI617050B (zh) | 2014-09-02 | 2015-09-02 | Semiconductor light-emitting element and optical coupling device |
CN201510553420.7A CN105390576B (zh) | 2014-09-02 | 2015-09-02 | 半导体发光元件及光耦合装置 |
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Cited By (1)
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JP2022515693A (ja) * | 2019-11-26 | 2022-02-22 | 天津三安光電有限公司 | 赤外線発光ダイオード |
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US10950750B2 (en) * | 2019-03-06 | 2021-03-16 | Bolb Inc. | Heterostructure and light-emitting device employing the same |
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JPH0537009A (ja) * | 1991-07-30 | 1993-02-12 | Sharp Corp | 光半導体装置 |
US5216684A (en) * | 1990-09-07 | 1993-06-01 | Massachusetts Institute Of Technology | Reliable alingaas/algaas strained-layer diode lasers |
JPH05160515A (ja) * | 1991-12-04 | 1993-06-25 | Eastman Kodak Japan Kk | 量子井戸型レーザダイオード |
JP2001060739A (ja) * | 1999-08-19 | 2001-03-06 | Nippon Telegr & Teleph Corp <Ntt> | 面発光レーザ装置 |
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JP2011222950A (ja) * | 2010-03-24 | 2011-11-04 | Showa Denko Kk | 発光ダイオード |
JP2012199293A (ja) * | 2011-03-18 | 2012-10-18 | Toshiba Corp | 半導体発光素子および光結合装置 |
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- 2014-09-02 JP JP2014178207A patent/JP6325948B2/ja active Active
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- 2015-08-05 US US14/819,196 patent/US9847447B2/en active Active
- 2015-09-02 CN CN201510553420.7A patent/CN105390576B/zh active Active
- 2015-09-02 TW TW104128913A patent/TWI617050B/zh active
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Cited By (3)
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JP2022515693A (ja) * | 2019-11-26 | 2022-02-22 | 天津三安光電有限公司 | 赤外線発光ダイオード |
JP7227357B2 (ja) | 2019-11-26 | 2023-02-21 | 天津三安光電有限公司 | 赤外線発光ダイオード |
JP7432024B2 (ja) | 2019-11-26 | 2024-02-15 | 天津三安光電有限公司 | 赤外線発光ダイオード |
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TW201611327A (zh) | 2016-03-16 |
JP6325948B2 (ja) | 2018-05-16 |
CN105390576B (zh) | 2018-08-31 |
US9847447B2 (en) | 2017-12-19 |
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