JP2021150576A - 赤外線検出器 - Google Patents
赤外線検出器 Download PDFInfo
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- 230000004888 barrier function Effects 0.000 claims abstract description 93
- 238000003780 insertion Methods 0.000 claims abstract description 77
- 230000037431 insertion Effects 0.000 claims abstract description 77
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 239000002019 doping agent Substances 0.000 claims abstract description 18
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 57
- 239000000758 substrate Substances 0.000 claims description 13
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 239000002096 quantum dot Substances 0.000 abstract description 44
- 230000035945 sensitivity Effects 0.000 abstract description 12
- 230000005684 electric field Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- 238000001451 molecular beam epitaxy Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000004065 semiconductor Substances 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 229910000673 Indium arsenide Inorganic materials 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005036 potential barrier Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- H01L31/0256—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 characterised by their semiconductor bodies characterised by the material
- H01L31/0264—Inorganic materials
- H01L31/0304—Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
- H01L31/03046—Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds including ternary or quaternary compounds, e.g. GaAlAs, InGaAs, InGaAsP
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- H01L31/0256—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 characterised by their semiconductor bodies characterised by the material
- H01L31/0264—Inorganic materials
- H01L31/0304—Inorganic materials including, apart from doping materials or other impurities, only AIIIBV compounds
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- H01L31/1844—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof the active layers comprising only AIIIBV compounds, e.g. GaAs, InP comprising ternary or quaternary compounds, e.g. Ga Al As, In Ga As P
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Abstract
Description
この発明の実施の形態によれば、赤外線検出器は、第1および第2のコンタクト層と、光電変換層と、障壁層と、挿入層とを備える。第1および第2のコンタクト層の各々は、ドーパントがドープされている。光電変換層は、第1のコンタクト層と第2のコインタクト層との間に配置され、量子層と中間層とを含む。障壁層は、第1および第2のコンタクト層の一方のコンタクト層のみと光電変換層との間に配置される。挿入層は、一方のコンタクト層と障壁層との間に一方のコンタクト層および障壁層に接して配置される。
構成1において、中間層および挿入層は、同じ材料からなる。
構成2において、中間層および挿入層は、GaAsからなる。
構成1から構成3のいずれかにおいて、障壁層は、AlGaAsからなる。
構成4において、AlGaAsのAl組成は、0.22以上である。
構成1から構成5のいずれかにおいて、挿入層は、10nm以上の膜厚を有する。
構成1から構成6のいずれかにおいて、挿入層は、1×1017cm−3以下のドーパントを含む。
構成7において、挿入層は、5×1015cm−3以下のドーパントを含む。
構成1から構成8のいずれかにおいて、一方のコンタクト層は、基板側に配置される。
構成1から構成9のいずれかにおいて、一方のコンタクト層のドーパントは、Siからなる。
図1は、この発明の実施の形態1による赤外線検出器の断面図である。図1を参照して、この発明の実施の形態1による赤外線検出器10は、半導体基板1と、バッファ層2と、コンタクト層3,7と、光電変換層4と、障壁層5と、挿入層6と、電極8,9とを備える。
図10は、実施の形態2による赤外線検出器の断面図である。図10を参照して、実施の形態2による赤外線検出器10Aは、図1に示す赤外線検出器10の障壁層5および挿入層6をそれぞれ障壁層5Aおよび挿入層6Aに変えたものであり、その他は、赤外線検出器10と同じである。
Claims (10)
- ドーパントがドープされた第1のコンタクト層と、
ドーパントがドープされた第2のコンタクト層と、
前記第1のコンタクト層と前記第2のコインタクト層との間に配置され、量子層と中間層とを含む光電変換層と、
前記第1および第2のコンタクト層の一方のコンタクト層のみと前記光電変換層との間に配置された障壁層と、
前記一方のコンタクト層と前記障壁層との間に前記一方のコンタクト層および前記障壁層に接して配置された挿入層とを備える赤外線検出器。 - 前記中間層および前記挿入層は、同じ材料からなる、請求項1に記載の赤外線検出器。
- 前記中間層および前記挿入層は、GaAsからなる、請求項2に記載の赤外線検出器。
- 前記障壁層は、AlGaAsからなる、請求項1から請求項3のいずれか1項に記載の赤外線検出器。
- 前記AlGaAsのAl組成は、0.22以上である、請求項4に記載の赤外線検出器。
- 前記挿入層は、10nm以上の膜厚を有する、請求項1から請求項5のいずれか1項に記載の赤外線検出器。
- 前記挿入層は、1×1017cm−3以下のドーパントを含む、請求項1から請求項6のいずれか1項に記載の赤外線検出器。
- 前記挿入層は、5×1015cm−3以下のドーパントを含む、請求項7に記載の赤外線検出器。
- 前記一方のコンタクト層は、基板側に配置される、請求項1から請求項8のいずれか1項に記載の赤外線検出器。
- 前記一方のコンタクト層のドーパントは、Siからなる、請求項1から請求項9のいずれか1項に記載の赤外線検出器。
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JP2020051031A JP2021150576A (ja) | 2020-03-23 | 2020-03-23 | 赤外線検出器 |
US17/198,992 US20210296517A1 (en) | 2020-03-23 | 2021-03-11 | Infrared detector |
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JP2020051031A JP2021150576A (ja) | 2020-03-23 | 2020-03-23 | 赤外線検出器 |
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JP2021150576A5 JP2021150576A5 (ja) | 2022-06-13 |
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JP2022073970A (ja) * | 2020-10-30 | 2022-05-17 | Jfeスチール株式会社 | 溶融Al-Zn-Si-Mg系めっき鋼板 |
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JP2017147324A (ja) * | 2016-02-17 | 2017-08-24 | 日本電気株式会社 | 赤外線検出器およびその製造方法 |
JP2018006363A (ja) * | 2016-06-27 | 2018-01-11 | シャープ株式会社 | 光電変換素子およびそれを備えた光電変換装置 |
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JP2022073970A (ja) * | 2020-10-30 | 2022-05-17 | Jfeスチール株式会社 | 溶融Al-Zn-Si-Mg系めっき鋼板 |
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