JP7248146B2 - 受光デバイスおよびその製造方法 - Google Patents
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/015—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction
- G02F1/025—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on semiconductor elements having potential barriers, e.g. having a PN or PIN junction in an optical waveguide structure
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/13—Integrated optical circuits characterised by the manufacturing method
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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
- H01L31/02—Details
- H01L31/0232—Optical elements or arrangements associated with the device
- H01L31/02327—Optical elements or arrangements associated with the device the optical elements being integrated or being directly associated to the device, e.g. back reflectors
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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
- H01L31/0248—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
- H01L31/0256—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
-
- 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
- H01L31/08—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
- 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
- H01L31/102—Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier
- H01L31/105—Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier the potential barrier being of the PIN type
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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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/184—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
- 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
-
- 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
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/1892—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof methods involving the use of temporary, removable substrates
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12035—Materials
- G02B2006/12078—Gallium arsenide or alloys (GaAs, GaAlAs, GaAsP, GaInAs)
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12004—Combinations of two or more optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1228—Tapered waveguides, e.g. integrated spot-size transformers
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- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Light Receiving Elements (AREA)
Description
以下、本発明の第1の実施の形態に係る受光デバイスについて、図1~2Bを参照して説明する。
図1に本発明の第1の実施の形態に係る受光デバイス100の上面図、図2A、Bに本発明の第1の実施の形態に係る受光デバイス100の断面図を示す。図2Aは図1中のA-A’における断面図、図2Bは図1中のB-B’における断面図である。
次に、本発明の第1の実施の形態に係る受光デバイス100の動作原理を図2A、Bを参照しながら説明する。
次に、図7~図15Bを参照しながら、本実施の形態おける受光デバイス100の製造方法について説明する。図7~図10は、p型領域11とn型領域12における共通の製造工程を示す。図11A、12A、13A,14A、15Aは、p型領域11における製造工程を示し、図2Aで示すp型領域11でのA-A’断面を示す。図11B、12B、13B,14B、15Bは、n型領域12における製造工程を示し、図2Bで示すn型領域12でのB-B’断面を示す。
次に、本発明の第2の実施の形態に係る受光デバイスを説明する。
101 Si基板
103 第1のi型InPクラッド
1031 第2のi型InPクラッド
104 n型InGaAsP導波路コア
107 i型InP挿入層
108 p型吸収層
109 p型拡散障壁層
110 p型コンタクト層
106A p型電極
106B n型電極
1061A p型オーミック電極
1061B n型オーミック電極
Claims (6)
- 基板上に、
第1のi型クラッドと、
前記第1のi型クラッド上に形成されている、所定の幅のn型導波路コアと、当該n型導波路コアの側面に接する第2のi型クラッドと、
前記n型導波路コアの一部を含む領域の上方に、i型挿入層を介して形成されている、p型吸収層と、p型拡散障壁層と、p型コンタクト層と、p型電極と、
前記n型導波路コアの他の一部の上面に形成されている、n型電極と
を備える受光デバイス。 - 前記i型挿入層の厚さが50nm以上100nm以下である請求項1に記載の受光デバイス。
- 前記第1のi型クラッドおよび前記第2のi型クラッドがi型InPであり、
前記n型導波路コアがInPに格子整合し、当該n型導波路コアを導波する光を吸収しない組成のn型InGaAsPであり、
前記i型挿入層がi型InPであり、
前記p型吸収層がInPに格子整合するp型InGaAsであり、
前記p型コンタクト層がInPに格子整合するp型InGaAsであり、
前記p型拡散障壁層がInPに格子整合し、バンドギャップが0.85eV以上0.9eV以下であるp型InGaAsPである請求項1又は請求項2に記載の受光デバイス。 - 前記n型導波路コアのInGaAsPのエネルギーギャップが0.81eV以上0.95eV以下である請求項3に記載の受光デバイス。
- 基板上に第1のi型InPクラッドとn型InGaAsPを順次積層した層構造における当該n型InGaAsPを加工して、n型InGaAsP導波路コアを形成する工程と、
前記n型InGaAsP導波路コアを埋め込むように第2のi型InPクラッドとi型InP挿入層とを積層する工程と
前記i型InP挿入層上にp型InGaAs吸収層、p型InGaAsP拡散障壁層、p型InGaAsコンタクト層を順次積層する工程と、
p型領域における前記p型InGaAs吸収層と前記p型InGaAsP拡散障壁層と前記p型InGaAsコンタクト層とを所定の幅に加工するとともに、n型領域における前記p型InGaAs吸収層と前記p型InGaAsP拡散障壁層と前記p型InGaAsコンタクト層を除去する工程と、
n型領域における前記n型InGaAsP導波路コア上の前記i型InP挿入層の一部を除去する工程と、
前記p型InGaAsコンタクト層の表面と前記n型InGaAsP導波路コアの表面それぞれに電極を形成する工程と
を有する受光デバイスの製造方法。 - 前記基板上に第1のi型InPクラッドとn型InGaAsPを順次積層した層構造が、Si基板上のSiO2表面と、InP上に順次積層したn型InGaAsPとi型InP層の表面とをウェハ接合させることにより形成されることを特徴とする請求項5に記載の受光デバイスの製造方法。
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JP2005129628A (ja) | 2003-10-22 | 2005-05-19 | Yokogawa Electric Corp | 受光素子及びその製造方法 |
JP2015149332A (ja) | 2014-02-05 | 2015-08-20 | 日本電信電話株式会社 | アバランシ・フォトダイオード |
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JP2865699B2 (ja) * | 1989-03-20 | 1999-03-08 | 富士通株式会社 | 受光装置 |
US5391869A (en) * | 1993-03-29 | 1995-02-21 | United Technologies Corporation | Single-side growth reflection-based waveguide-integrated photodetector |
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JP2005129628A (ja) | 2003-10-22 | 2005-05-19 | Yokogawa Electric Corp | 受光素子及びその製造方法 |
JP2015149332A (ja) | 2014-02-05 | 2015-08-20 | 日本電信電話株式会社 | アバランシ・フォトダイオード |
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