JP6975110B2 - 光検出素子、光検出システム、ライダー装置及び車 - Google Patents
光検出素子、光検出システム、ライダー装置及び車 Download PDFInfo
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 12
- 229910052796 boron Inorganic materials 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 11
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4865—Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components 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
- H01L27/144—Devices controlled by radiation
- H01L27/1443—Devices controlled by radiation with at least one potential jump or surface barrier
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4861—Circuits for detection, sampling, integration or read-out
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- H01L27/144—Devices controlled by radiation
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- H01L27/14601—Structural or functional details thereof
- H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
- H01L27/1461—Pixel-elements with integrated switching, control, storage or amplification elements characterised by the photosensitive area
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- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
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- H01L31/02—Details
- H01L31/02016—Circuit arrangements of general character for the devices
- H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02027—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for devices working in avalanche mode
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- 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
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Description
図1は、第1の実施形態に係る光検出素子1を含む光検出器の断面図(a)及び上面図(b)である。図1(a)は、図1(b)の点線の断面図である。
図3は、P/N積層ガードリング無(a)とP/N積層ガードリング有(b)について、Vov=5Vでの電気力線分布およびアバランシェ増倍に寄与するキャリアの分布を重ね合せたシミュレーション結果を示す図である。
この後、n型アバランシェ層113を活性化するラピッドアニール処理する。
第1の実施形態と異なる点を説明する。
図21に本実施形態に係るライダー(Laser Imaging Detection and Ranging:LIDAR)装置5001を示す。
Claims (15)
- 入射光をキャリアに変換可能な第1導電型の第1領域と、
第2導電型の第2領域と、
前記第1領域と前記第2領域の間に設けられ、前記第2領域とpn接合する第1導電型の第3領域と、
前記第1領域から前記第2領域に向かう方向と交差した方向において、前記第2領域の周りを囲むように設けられ、前記第2領域の縁での電界集中を緩和可能な第2導電型の第4領域と、
前記第1領域と前記第4領域の間に設けられ、前記キャリアを前記pn接合に誘導可能な第1導電型の第5領域と、を含み、
前記キャリアは、前記pn接合付近でアバランシェ倍増され、
前記第5領域の不純物のピーク濃度は、前記第3領域の不純物のピーク濃度より高い
光検出素子。 - 前記第5領域は、前記第3領域と前記第4領域の間に少なくとも一部設けられる請求項1に記載の光検出素子。
- 前記第2領域と前記第3領域がpn接合したpn接合ダイオードである請求項1又は2に記載の光検出素子。
- ブレークダウン電圧以上の逆バイアスを印可してガイガー動作させる電極と、
前記電極と電気的に接続され電圧降下によってキャリアを収束させるために設けられるクエンチ抵抗と、を含む請求項3に記載の光検出素子。 - 前記複数の光検出素子の間に設けられる素子分離構造と、を含む請求項1から4のいずれか1項に記載の光検出素子。
- 前記第4領域は、前記素子分離構造の少なくとも一部を覆う請求項5に記載の光検出素子。
- 前記第4領域は、濃度ピークを示す深さが前記素子分離構造と同程度以上に深い請求項5又は6に記載の光検出素子。
- 前記第5領域の不純物の濃度ピークを示す深さは、前記第3領域の濃度ピークを示す深さより深い請求項1から7のいずれか1項に記載の光検出素子。
- 前記第4領域の不純物のピーク濃度は前記第2領域の不純物のピーク濃度より低い請求項1から8のいずれか1項に記載の光検出素子。
- 前記第4領域は前記第2領域の縁を少なくとも一部を覆う請求項1から9のいずれか1項に記載の光検出素子。
- 前記第2領域、前記第3領域、前記第4領域、及び前記第5領域のうち少なくとも1つは、光入射方向から見て四隅に曲率を有する請求項1から10のいずれか1項に記載の光検出素子。
- 請求項1から11のいずれか1項に記載の光検出素子と、
前記光検出素子の出力信号から光の飛行時間を算出する距離計測回路と、
を備える光検出システム。 - 物体に光を照射する光源と、
前記物体に反射された光を検出する請求項12に記載の光検出システムと、
を備えるライダー装置。 - 前記光源と前記光検出素子の配置関係に基づいて、三次元画像を生成する画像認識システムと、
を備える請求項13に記載のライダー装置。 - 車体の4つの隅に請求項13又は14に記載のライダー装置を備える車。
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US16/295,525 US11255954B2 (en) | 2018-09-13 | 2019-03-07 | Photo detection element, photo detection system, lidar device and vehicle comprising a fifth region of first conductivity type between a first region and a fourth region |
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JPS6057685A (ja) | 1983-09-08 | 1985-04-03 | Nec Corp | 半導体素子 |
JPS6222546A (ja) | 1985-07-24 | 1987-01-30 | Q P Corp | 油脂組成物 |
JPH04279879A (ja) | 1991-02-15 | 1992-10-05 | Mitsubishi Electric Corp | 光検出回路 |
JPH06224463A (ja) | 1993-01-22 | 1994-08-12 | Mitsubishi Electric Corp | 半導体受光装置 |
JP4131191B2 (ja) * | 2003-04-11 | 2008-08-13 | 日本ビクター株式会社 | アバランシェ・フォトダイオード |
JP2009105489A (ja) | 2007-10-19 | 2009-05-14 | Sumitomo Electric Ind Ltd | 光トランシーバ及び光トランシーバの制御方法 |
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IT1399075B1 (it) * | 2010-03-23 | 2013-04-05 | St Microelectronics Srl | Metodo di rilevazione di posizioni di fotoni che impingono su un fotodiodo a valanga geiger-mode, relativi fotodiodi a valanga geiger-mode e processo di fabbricazione |
JP5211095B2 (ja) | 2010-03-25 | 2013-06-12 | 株式会社豊田中央研究所 | 光検出器 |
JP5872197B2 (ja) | 2011-07-04 | 2016-03-01 | 浜松ホトニクス株式会社 | フォトダイオードアレイモジュール |
EP2708914A1 (de) * | 2012-09-18 | 2014-03-19 | Sick Ag | Optoelektronischer Sensor und Verfahren zur Erfassung einer Tiefenkarte |
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JP6341331B2 (ja) * | 2015-03-17 | 2018-06-13 | 富士電機株式会社 | 半導体装置および半導体装置の製造方法 |
JP6669450B2 (ja) * | 2015-07-30 | 2020-03-18 | 株式会社ユーシン | 光レーダ装置、車載レーダ装置、インフラレーダ装置 |
JP6748486B2 (ja) | 2016-06-08 | 2020-09-02 | 浜松ホトニクス株式会社 | 光検出ユニット、光検出装置、及び、光検出ユニットの製造方法 |
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