JP7379117B2 - 光電変換装置及び光電変換システム - Google Patents
光電変換装置及び光電変換システム Download PDFInfo
- Publication number
- JP7379117B2 JP7379117B2 JP2019214781A JP2019214781A JP7379117B2 JP 7379117 B2 JP7379117 B2 JP 7379117B2 JP 2019214781 A JP2019214781 A JP 2019214781A JP 2019214781 A JP2019214781 A JP 2019214781A JP 7379117 B2 JP7379117 B2 JP 7379117B2
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor region
- photoelectric conversion
- conversion device
- type semiconductor
- buried electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 title claims description 155
- 239000004065 semiconductor Substances 0.000 claims description 257
- 239000000758 substrate Substances 0.000 claims description 51
- 239000000969 carrier Substances 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 16
- 239000012535 impurity Substances 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 2
- 229920005591 polysilicon Polymers 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 description 19
- 238000001514 detection method Methods 0.000 description 17
- 230000005684 electric field Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 230000015654 memory Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 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
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14603—Special geometry or disposition of pixel-elements, address-lines or gate-electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- 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
-
- 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
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
-
- 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
- G01S17/894—3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
-
- 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
- G01S7/4863—Detector arrays, e.g. charge-transfer gates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/2018—Scintillation-photodiode combinations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/24—Measuring radiation intensity with semiconductor detectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14609—Pixel-elements with integrated switching, control, storage or amplification elements
- H01L27/14612—Pixel-elements with integrated switching, control, storage or amplification elements involving a transistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
- H01L27/14621—Colour filter arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14625—Optical elements or arrangements associated with the device
- H01L27/14627—Microlenses
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14634—Assemblies, i.e. Hybrid structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14636—Interconnect structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1464—Back illuminated imager structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
- H01L27/14645—Colour imagers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L27/146—Imager structures
- H01L27/14643—Photodiode arrays; MOS imagers
- H01L27/14658—X-ray, gamma-ray or corpuscular radiation imagers
- H01L27/14663—Indirect radiation imagers, e.g. using luminescent members
-
- 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
- H01L31/0224—Electrodes
- H01L31/022408—Electrodes for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/022416—Electrodes for devices characterised by at least one potential jump barrier or surface barrier comprising ring electrodes
-
- 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
- H01L31/107—Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier the potential barrier working in avalanche mode, e.g. avalanche photodiodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4258—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector for detecting non x-ray radiation, e.g. gamma radiation
-
- 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
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Molecular Biology (AREA)
- High Energy & Nuclear Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Medical Informatics (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Toxicology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Light Receiving Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Solid State Image Pick-Up Elements (AREA)
Description
図1は、実施の形態1に係る光電変換装置の概略を示すシステム図である。光電変換装置101は、ユニットアレイ部103と、ユニットアレイ部103の駆動を制御する回路を含む駆動回路部を有する。ユニットアレイ部103は、第1の方向および第1の方向に交差する第2の方向に配置された複数の光電変換ユニット102を有し、光電変換ユニット102は後述する光電変換部を有する。第1の方向とは、例えば、行方向であり、第2の方向とは例えば列方向である。光電変換装置が撮像装置として用いられる場合は、光電変換ユニット102は画素を構成し得る。
図6と図7を参照しながら、実施の形態2について説明する。本実施の形態は、埋込電極の最も深い部分(先端)近傍にP型半導体領域401の不純物濃度よりも不純物濃度の高いP型半導体領域601(第2部分)が配されている点で実施の形態1とは異なる。以下、実施の形態1と同様の構成は説明を省略し、異なる構成を中心に説明する。
図8と図9を参照しながら、実施の形態3について説明する。本実施の形態は、環状の埋込電極を有する構成である点、および、埋込電極が第1導電型の半導体領域で挟まれている点が実施の形態1と異なる。以下、実施の形態1と同様の構成は説明を省略し、異なる構成を中心に説明する。
図10を参照しながら、実施の形態4について説明する。本実施の形態は、埋込電極の先端近傍にP型半導体領域を有する構成である点が実施の形態3と異なる。以下、実施の形態3と同様の構成は説明を省略し、異なる構成を中心に説明する。
図11と図12を参照しながら、実施の形態5について説明する。本実施の形態は、半導体基板の第1面にP型半導体領域1102を有する点が実施の形態4と異なる。以下、実施の形態4と同様の構成は説明を省略し、異なる構成を中心に説明する。
図13を参照しながら、実施の形態6について説明する。本実施の形態は、第1基板に光電変換部201が配され、第2基板に波形整形部204が配され、第1基板1111と第2基板1112とが積層される点が実施の形態1と異なる。以下、実施の形態1と同様の構成は説明を省略し、異なる構成を中心に説明する。
図14を参考にしながら、実施の形態7に示す光電変換システムの一例を説明する。図14を用いて光電変換システムの一例である不可視光検出システムおよびPET等の医療診断システムについて説明する。図1乃至図13と同様の機能を有する部分には同様の符号を付し、詳細な説明を省略する。なお、本実施の形態の光電変換ユニットは、図2の波形整形部204とカウンタ回路205の代わりにTime To Didital Convertor(TDC)を有する。ここでは、TDCをTDC210として説明する。
図15を参照しながら、実施の形態8の光電変換システムの一例を説明する。図1~図13と同様の機能を有する部分には同様の符号を付し、詳細な説明を省略する。
図16を参照しながら、実施の形態9の光電変換システムの一例を説明する。図16では、光電変換システムの一例として、車載カメラに関する光検出システムについて説明する。
102 光電変換ユニット
103 ユニットアレイ
104 垂直走査回路
105 列回路
106 水平走査回路
107 出力回路
108 第1走査線
109 信号線
201 光電変換部
202 第1制御部
203 第2制御部
204 波形整形部
205 カウンタ回路
206 選択回路
207 第1配線
208 第2配線
209 第3配線
301 埋込電極
302 絶縁部材
303 N型半導体領域(第1半導体領域)
304 P型半導体領域
305 P型半導体領域
306 コンタクト部
401 P型半導体領域(第2半導体領域)
601 P型半導体領域
801 N型半導体領域
802 埋込電極
803 絶縁部材
804 N型半導体領域
901 埋込電極802とP型半導体領域305との間の距離
1001 P型半導体領域
1101 N型半導体領域
1102 P型半導体領域
Claims (19)
- 第1面と、前記第1面に対向する第2面とを有する半導体基板と、
前記半導体基板内に配された信号キャリアと同じキャリアを多数キャリアとする第1導電型の第1半導体領域と、
前記半導体基板内に配された第2導電型の第2半導体領域と、
前記半導体基板内に配され、前記第1面から前記第2面に向かう深さ方向に配された埋込電極と、
前記第2半導体領域および前記第1半導体領域と、前記埋込電極と、の間に配された絶縁部材と、を備え、
前記埋込電極の最も深い部分は、前記第1半導体領域と前記第2半導体領域とのPN接合面よりも深くに位置し、
前記第1半導体領域と前記第2半導体領域との間の電位差は、前記第1半導体領域と前記第2半導体領域との間でアバランシェ増倍が生じない電位差であり、
前記埋込電極と前記第2半導体領域との間の電位差は、前記埋込電極と前記第2半導体領域との間でアバランシェ増倍が生じる電位差となっていることを特徴とする光電変換装置。 - 第1面と、前記第1面に対向する第2面とを有する半導体基板と、
前記半導体基板内に配され、信号キャリアと同じキャリアを多数キャリアとする第1導電型の第1半導体領域と、
前記半導体基板内に配された第2導電型の第2半導体領域と、
前記半導体基板内に配され、前記第1面から前記第2面に向かう深さ方向に配された埋込電極と、
前記第2半導体領域と前記埋込電極との間に配された絶縁部材と、を備え、
前記埋込電極と前記第2半導体領域との間にはアバランシェ増倍領域が形成され、
前記アバランシェ増倍領域と前記第1半導体領域とが接しており、
前記第1半導体領域と前記第2半導体領域との間の電位差は、前記第1半導体領域と前記第2半導体領域との間でアバランシェ増倍が生じない電位差であることを特徴とする光電変換装置。 - 前記第2半導体領域と前記絶縁部材とが接することを特徴とする請求項1または2に記載の光電変換装置。
- 前記第1半導体領域と前記第2半導体領域とは平面視で重なることを特徴とする請求項1乃至3のいずれか1項に記載の光電変換装置。
- 前記第1半導体領域と前記第2半導体領域とはPN接合することを特徴とする請求項4に記載の光電変換装置。
- 前記埋込電極の最も深い部分は、前記第1半導体領域よりも深い位置に配されていることを特徴とする請求項1乃至5のいずれか1項に記載の光電変換装置。
- 前記第1面には前記埋込電極に電位を供給するコンタクトプラグが配されており、
前記第2面は光入射面であることを特徴とする請求項1乃至6のいずれか1項に記載の光電変換装置。 - 前記第2半導体領域は、第1部分と、前記第1部分よりも不純物濃度の高い第2部分とを含み、
前記第2部分は、前記第1面と前記第1部分との間に配されることを特徴とする請求項1乃至7のいずれか1項に記載の光電変換装置。 - 前記第2部分と前記絶縁部材との間には、前記第1導電型の第3半導体領域が配されていることを特徴とする請求項8に記載の光電変換装置。
- 前記第3半導体領域は、前記第1半導体領域よりも不純物濃度が低いことを特徴とする請求項9に記載の光電変換装置。
- 前記第1半導体領域は、前記半導体基板の前記第1面の一部を構成することを特徴とする請求項6乃至10のいずれか1項に記載の光電変換装置。
- 前記第2半導体領域は、第1部分と、前記第1部分よりも不純物濃度の高い第3部分と、を含み、
前記第3部分は、前記埋込電極に沿って前記埋込電極の最も深い部分よりも深い位置まで連続的に配されていることを特徴とする請求項1乃至11のいずれか1項に記載の光電変換装置。 - 前記絶縁部材は、前記半導体基板内で前記埋込電極を取り囲んで配されていることを特徴とする請求項1乃至12のいずれか1項に記載の光電変換装置。
- 前記埋込電極はポリシリコンを含むことを特徴とする請求項1乃至13のいずれか1項に記載の光電変換装置。
- 前記絶縁部材、前記埋込電極、及び前記第1半導体領域を通る断面において、前記埋込電極は、前記第1半導体領域に囲まれて配されていることを特徴とする請求項1乃至14のいずれか1項に記載の光電変換装置。
- 前記半導体基板の前記第1面に、前記半導体基板と異なる半導体基板が積層され、
前記異なる半導体基板には、前記埋込電極に印加する電位を制御する制御部が配されることを特徴とする請求項1乃至15のいずれか1項に記載の光電変換装置。 - 請求項1乃至16のいずれか1項に記載の光電変換装置を複数有する光検出システムであって、
第1波長帯の光を前記第1波長帯と異なる第2波長帯の光に変換する波長変換部と、
前記複数の光電変換装置に保持された複数のデジタル信号から得られる複数の画像の合成処理を行う信号処理手段と、を有し、
前記波長変換部から出力された前記第2波長帯の光が前記複数の光電変換装置に入射するように構成されていることを特徴とする光電変換システム。 - 請求項1乃至16のいずれか1項に記載の光電変換装置を複数有する光電変換システムであって、
前記光電変換装置によって検出される光を発光する発光部と、
前記光電変換装置に保持されたデジタル信号を用いて距離算出を行う距離算出手段とを有することを特徴とする光検出システム。 - 移動体であって、
請求項1乃至16のいずれか1項に記載の光電変換装置と、
前記光電変換装置からの信号に基づき、対象物までの距離情報を取得する距離情報取得手段と、
前記距離情報に基づいて前記移動体を制御する制御手段と、を有することを特徴とする移動体。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019214781A JP7379117B2 (ja) | 2019-11-27 | 2019-11-27 | 光電変換装置及び光電変換システム |
US16/950,746 US11282877B2 (en) | 2019-11-27 | 2020-11-17 | Photoelectric conversion apparatus and photoelectric conversion system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019214781A JP7379117B2 (ja) | 2019-11-27 | 2019-11-27 | 光電変換装置及び光電変換システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021086921A JP2021086921A (ja) | 2021-06-03 |
JP7379117B2 true JP7379117B2 (ja) | 2023-11-14 |
Family
ID=75974314
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019214781A Active JP7379117B2 (ja) | 2019-11-27 | 2019-11-27 | 光電変換装置及び光電変換システム |
Country Status (2)
Country | Link |
---|---|
US (1) | US11282877B2 (ja) |
JP (1) | JP7379117B2 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008288326A (ja) | 2007-05-16 | 2008-11-27 | Denso Corp | 固体撮像装置及びその駆動方法 |
JP2018019039A (ja) | 2016-07-29 | 2018-02-01 | キヤノン株式会社 | 光検出装置および光検出システム |
JP2018088494A (ja) | 2016-11-29 | 2018-06-07 | キヤノン株式会社 | 光検出装置および光検出システム |
JP2018019040A5 (ja) | 2016-07-29 | 2019-06-20 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4997694B2 (ja) * | 2004-10-07 | 2012-08-08 | 富士電機株式会社 | 半導体装置およびその製造方法 |
JP2018019040A (ja) | 2016-07-29 | 2018-02-01 | キヤノン株式会社 | 光検出装置および光検出システム |
KR102388175B1 (ko) | 2016-11-11 | 2022-04-19 | 하마마츠 포토닉스 가부시키가이샤 | 광 검출 장치 |
JP7169071B2 (ja) | 2018-02-06 | 2022-11-10 | ソニーセミコンダクタソリューションズ株式会社 | 画素構造、撮像素子、撮像装置、および電子機器 |
JP7271091B2 (ja) | 2018-05-10 | 2023-05-11 | 浜松ホトニクス株式会社 | 裏面入射型半導体光検出装置 |
-
2019
- 2019-11-27 JP JP2019214781A patent/JP7379117B2/ja active Active
-
2020
- 2020-11-17 US US16/950,746 patent/US11282877B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008288326A (ja) | 2007-05-16 | 2008-11-27 | Denso Corp | 固体撮像装置及びその駆動方法 |
JP2018019039A (ja) | 2016-07-29 | 2018-02-01 | キヤノン株式会社 | 光検出装置および光検出システム |
JP2018019040A5 (ja) | 2016-07-29 | 2019-06-20 | ||
JP2018088494A (ja) | 2016-11-29 | 2018-06-07 | キヤノン株式会社 | 光検出装置および光検出システム |
Also Published As
Publication number | Publication date |
---|---|
US11282877B2 (en) | 2022-03-22 |
JP2021086921A (ja) | 2021-06-03 |
US20210159256A1 (en) | 2021-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7379606B2 (ja) | 光検出装置および光検出システム | |
US11158755B2 (en) | Photo-detection apparatus and photo-detection system | |
US10283651B2 (en) | Photodetection device and system having avalanche amplification | |
JP7242234B2 (ja) | 光検出装置、光検出システム | |
JP7114244B2 (ja) | 光検出装置、光検出システム、及び移動体 | |
US10833207B2 (en) | Photo-detection device, photo-detection system, and mobile apparatus | |
JP2018019039A (ja) | 光検出装置および光検出システム | |
JP7362352B2 (ja) | 光電変換装置、光電変換システム、および移動体 | |
JP2018019040A (ja) | 光検出装置および光検出システム | |
US11189742B2 (en) | Photo-detection device, photo-detection system, and mobile apparatus | |
JP7379117B2 (ja) | 光電変換装置及び光電変換システム | |
US20220181362A1 (en) | Light detection device and light detection system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20221116 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230830 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20231003 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20231101 |
|
R151 | Written notification of patent or utility model registration |
Ref document number: 7379117 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |