基本信息:
- 专利标题： IMAGE SENSOR WITH CONTROLLED SPAD AVALANCHE
- 申请号：US17943579 申请日：2022-09-13
- 公开(公告)号：US20230013026A1 公开(公告)日：2023-01-19
- 发明人： TSO-SHENG TSAI
- 申请人： PixArt Imaging Inc.
- 申请人地址： TW Hsin-Chu County
- 专利权人： PixArt Imaging Inc.
- 当前专利权人： PixArt Imaging Inc.
- 当前专利权人地址： TW Hsin-Chu County
- 主分类号： H04N5/378
- IPC分类号： H04N5/378 ; H01L27/146 ; H04N5/374 ; H01L31/107
摘要：
There is provided an image sensor employing an avalanche diode. The image sensor includes a plurality of pixel circuits arranged in a matrix, a plurality of pulling circuits and a global current source circuit. Each of the plurality of pixel circuits includes a single photon avalanche diode (SPAD) and a floating diffusion. Each of the plurality of pulling circuits is arranged corresponding to one pixel circuit column. The global current source circuit is used to form a current mirror with each of the plurality of pulling circuits. The floating diffusion is used to record a voltage of one photon event detected by the SPAD in an exposure period.
公开/授权文献:
- US12028636B2 Image sensor with controlled SPAD avalanche 公开/授权日：2024-07-02