JP5636604B2 - 半導体受光素子 - Google Patents
半導体受光素子 Download PDFInfo
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- JP5636604B2 JP5636604B2 JP2012147534A JP2012147534A JP5636604B2 JP 5636604 B2 JP5636604 B2 JP 5636604B2 JP 2012147534 A JP2012147534 A JP 2012147534A JP 2012147534 A JP2012147534 A JP 2012147534A JP 5636604 B2 JP5636604 B2 JP 5636604B2
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- 239000004065 semiconductor Substances 0.000 title claims description 57
- 239000011347 resin Substances 0.000 claims description 64
- 229920005989 resin Polymers 0.000 claims description 64
- 239000000758 substrate Substances 0.000 claims description 29
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 18
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 98
- 229910000530 Gallium indium arsenide Inorganic materials 0.000 description 32
- 229910052751 metal Inorganic materials 0.000 description 20
- 239000002184 metal Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 17
- 239000010931 gold Substances 0.000 description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000007747 plating Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005530 etching Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000002161 passivation Methods 0.000 description 4
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 229910000077 silane Inorganic materials 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- BYDQGSVXQDOSJJ-UHFFFAOYSA-N [Ge].[Au] Chemical compound [Ge].[Au] BYDQGSVXQDOSJJ-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
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- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
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- H01L31/0248—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
- H01L31/0352—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 their shape or by the shapes, relative sizes or disposition of the semiconductor regions
- H01L31/035272—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 their shape or by the shapes, relative sizes or disposition of the semiconductor regions characterised by at least one potential jump barrier or surface barrier
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- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
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- H01L31/0224—Electrodes
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- H01L31/068—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 adapted as photovoltaic [PV] conversion devices characterised by potential barriers the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells
- H01L31/0693—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 adapted as photovoltaic [PV] conversion devices characterised by potential barriers the potential barriers being only of the PN homojunction type, e.g. bulk silicon PN homojunction solar cells or thin film polycrystalline silicon PN homojunction solar cells the devices including, apart from doping material or other impurities, only AIIIBV compounds, e.g. GaAs or InP solar cells
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- H01L31/10—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 in which radiation controls flow of current through the device, e.g. photoresistors characterised by potential barriers, e.g. phototransistors
- H01L31/101—Devices sensitive to infrared, visible or ultraviolet radiation
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- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/056—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means the light-reflecting means being of the back surface reflector [BSR] type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/544—Solar cells from Group III-V materials
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- Life Sciences & Earth Sciences (AREA)
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Light Receiving Elements (AREA)
Description
原料ガス :シラン(SiH4)、アンモニア(NH3)、窒素(N2)
圧力 :700Pa
温度 :270℃
RFパワー:50W
これにより、第1SiN膜44は、受光部20と電極接続部30a〜30dとの上面及び側面、並びに、受光部20と電極接続部30a〜30dとの間のInP基板10等を覆うように形成される。第1SiN膜44の内部応力は、半導体受光素子の使用温度範囲(例えば−10℃から80℃)で引張応力となる。その後、p型InGaAs層28上及びn型InP層22上の第1SiN膜44に対してエッチング処理を施して開口を形成する。この開口に、例えば蒸着法及びリフトオフ法を用いて、金属膜を埋め込む。これにより、p型InGaAs層28の上面に接し、p型InP層26に電気的に接続されるp側オーミック電極50が形成される。n型InP層22の上面に接し、n型InP層22に電気的に接続されるn側オーミック電極54が形成される。
原料ガス :シラン、アンモニア、窒素、酸化窒素(N2O)
圧力 :900Pa
温度 :270℃
RFパワー:20W
これにより、第1SiON膜68は、第1SiN膜44の上面に沿って形成され、第1SiN膜44と同様に、受光部20と電極接続部30a〜30dとの上面及び側面、並びに、受光部20と電極接続部30a〜30dとの間のInP基板10等を覆うように形成される。また、第1SiON膜68は、p側オーミック電極50及びn側オーミック電極54を覆うように形成される。第1SiON膜68の内部応力は、半導体受光素子の使用温度範囲(例えば−10℃から80℃)で引張応力となる
原料ガス :シラン、アンモニア、窒素、酸化窒素
圧力 :900Pa
温度 :270℃
RFパワー:20W
これにより、第2SiON膜70は、受光部20と電極接続部30a〜30dとの上面及び側面、並びに、樹脂膜46の上面等を覆うように形成され、p側オーミック電極50及びn側オーミック電極54上にも形成される。第2SiON膜70は、半導体受光素子の使用温度範囲(例えば−10℃から80℃)で圧縮応力となる。
原料ガス :シラン、アンモニア、窒素
圧力 :700Pa
温度 :270℃
RFパワー:50W
これにより、第2SiN膜48は、受光部20の上面及び側面と電極接続部30a〜30dの側面等を覆うように形成される。また、第2SiN膜48は、リング形状をしたp型InGaAs層28の内側領域で、受光部20の上面、即ちp型InP層26の上面、に接して形成される。第2SiN膜48は、半導体受光素子の使用温度範囲(例えば−10℃から80℃)で引張応力となる。
20 受光部
22 n型InP層
24 n型InGaAs層
25 n型InGaAsP層
26 p型InP層
28 p型InGaAs層
30a、30b、30c、30d 電極接続部
40 ノンドープInP層
42 溝
44 第1SiN膜
46 樹脂膜
48 第2SiN膜
50 p側オーミック電極
52 p側配線
54 n側オーミック電極
56 n側配線
58 メタル層
60 p側めっき配線
62 p電極パッド
64 n側めっき配線
66 n電極パッド
68 第1SiON膜
70 第2SiON膜
90a、90b 開口
Claims (5)
- 半絶縁性基板上に設けられ、半導体層が積層されたメサ状の受光部と、
前記受光部の側面の一部に対して設けられ、窒化シリコン膜からなる第1絶縁膜、酸化窒化シリコン膜からなる第2絶縁膜および窒化シリコン膜からなる第3絶縁膜が互いに接して積層された絶縁膜の積層構造と、
前記受光部に隣接して設けられた樹脂膜と、を備え、
前記樹脂膜は、前記第1絶縁膜、前記第2絶縁膜および前記第3絶縁膜のうちの何れか2つの間にその上下が挟まれてなり、
前記第2絶縁膜は前記樹脂膜上に設けられ、前記第2絶縁膜の内部応力は前記樹脂膜の内部応力と逆方向であることを特徴とする半導体受光素子。 - 前記第2絶縁膜の前記第1絶縁膜あるいは前記第3絶縁膜に対する内部応力は逆方向であることを特徴とする請求項1記載の半導体受光素子。
- 前記第2絶縁膜は、前記樹脂膜の上下を挟む2層構造を備えることを特徴とする請求項1または2記載の半導体受光素子。
- 前記第2絶縁膜を構成する前記2層構造は、前記受光部上に設けられる電極上に位置し、前記電極に接続される配線は、前記2層構造を共通のマスクで開口した窓によって前記電極と接続されることを特徴とする請求項3記載の半導体受光素子。
- 前記受光部の上面には、前記絶縁膜の積層構造のうち、前記第1絶縁膜および前記第2絶縁膜を除く前記第3絶縁膜が設けられた領域を備えることを特徴とする請求項1から4のいずれか一項記載の半導体受光素子。
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JP2012147534A JP5636604B2 (ja) | 2012-06-29 | 2012-06-29 | 半導体受光素子 |
US13/929,412 US8970013B2 (en) | 2012-06-29 | 2013-06-27 | Semiconductor light-receiving element |
CN201310269399.9A CN103531644B (zh) | 2012-06-29 | 2013-06-28 | 半导体光接收元件 |
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FR3048126B1 (fr) * | 2016-02-18 | 2018-03-09 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Structure du type photodiode, composant et procede de fabrication d'une structure |
US10147829B2 (en) | 2016-09-23 | 2018-12-04 | Taiwan Semiconductor Manufacturing Co., Ltd. | Dielectric sidewall structure for quality improvement in Ge and SiGe devices |
JP7147669B2 (ja) * | 2019-04-09 | 2022-10-05 | 日本電信電話株式会社 | 半導体受光素子 |
WO2022195780A1 (ja) * | 2021-03-17 | 2022-09-22 | 日本電信電話株式会社 | 受光素子 |
CN115377229A (zh) * | 2022-09-16 | 2022-11-22 | 武汉敏芯半导体股份有限公司 | 一种二氧化硅钝化膜及其制作方法 |
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JPS6284522A (ja) * | 1985-10-08 | 1987-04-18 | Nec Corp | 3−v族化合物半導体の表面保護膜構造 |
JPH04290477A (ja) | 1991-03-19 | 1992-10-15 | Fujitsu Ltd | 半導体装置及びその実装構造 |
JP4861388B2 (ja) * | 2001-02-26 | 2012-01-25 | 日本オプネクスト株式会社 | アバランシェホトダイオード |
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JP2002329937A (ja) * | 2001-05-07 | 2002-11-15 | Mitsubishi Electric Corp | 半導体装置及びその製造方法 |
JP4016828B2 (ja) * | 2002-12-17 | 2007-12-05 | 日本電気株式会社 | 半導体受光素子 |
JP2008205025A (ja) * | 2007-02-16 | 2008-09-04 | Fujitsu Ltd | 光半導体素子及びその製造方法 |
JP5402083B2 (ja) * | 2008-09-29 | 2014-01-29 | ソニー株式会社 | 固体撮像装置とその製造方法、及び電子機器 |
JP5598297B2 (ja) * | 2010-12-08 | 2014-10-01 | 住友電気工業株式会社 | 半導体光変調素子及びその製造方法 |
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2013
- 2013-06-27 US US13/929,412 patent/US8970013B2/en active Active
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US20140001592A1 (en) | 2014-01-02 |
CN103531644B (zh) | 2016-02-03 |
US8970013B2 (en) | 2015-03-03 |
JP2014011347A (ja) | 2014-01-20 |
CN103531644A (zh) | 2014-01-22 |
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