Invention Grant
- Patent Title: Light reception device and distance measurement module
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Application No.: US16633724Application Date: 2019-07-04
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Publication No.: US11378659B2Publication Date: 2022-07-05
- Inventor: Yuji Isogai , Tsutomu Imoto , Takuya Maruyama , Takuro Murase , Ryota Watanabe , Toshifumi Wakano
- Applicant: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Applicant Address: JP Kanagawa
- Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Current Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Current Assignee Address: JP Kanagawa
- Agency: Sheridan Ross P.C.
- Priority: JPJP2018-135397 20180718
- International Application: PCT/JP2019/026591 WO 20190704
- International Announcement: WO2020/017343 WO 20200123
- Main IPC: G01S7/481
- IPC: G01S7/481 ; G01S17/08 ; H01L27/146 ; G01S17/89 ; G01S17/931

Abstract:
The present technology relates to a light reception device and a distance measurement module. The light reception device includes an on-chip lens, a wiring layer, and a semiconductor layer between the on-chip lens and the wiring layer. The semiconductor layer includes a first tap to which a first voltage is applied and a first charge detection portion, and a second tap to which a second voltage different from the first voltage is applied and a second charge detection portion. The position of the on-chip lens differs depending upon an in-plane position of a pixel array section, so that an optical path length or a DC contrast of a chief ray from an object is uniform at in-plane pixels of the pixel array section. The present technology can be applied, for example, to a light reception device that generates distance information, for example, by a ToF method, and so forth.
Public/Granted literature
- US20210364604A1 LIGHT RECEPTION DEVICE AND DISTANCE MEASUREMENT MODULE Public/Granted day:2021-11-25
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