Invention Grant
- Patent Title: Light-receiving device and method for reading out signal of light-receiving device
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Application No.: US16615647Application Date: 2018-04-23
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Publication No.: US11343458B2Publication Date: 2022-05-24
- Inventor: Shigetoshi Sugawa , Rihito Kuroda
- Applicant: TOHOKU UNIVERSITY
- Applicant Address: JP Miyagi
- Assignee: TOHOKU UNIVERSITY
- Current Assignee: TOHOKU UNIVERSITY
- Current Assignee Address: JP Miyagi
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JPJP2017-105134 20170528
- International Application: PCT/JP2018/016450 WO 20180423
- International Announcement: WO2018/221074 WO 20181206
- Main IPC: H04N5/378
- IPC: H04N5/378 ; G01J1/46 ; H04N5/372

Abstract:
A light-receiving device that achieves both high saturation performance and high sensitivity performance includes a light-receiving pixel including a light-receiving element, a first capacitive element that accumulates a photoelectric charge produced by light received by the light-receiving element, a second capacitive element that accumulates a transferred portion of an amount of the photoelectric charge accumulated in the capacitive element, a switch means for turning on and off a photoelectric charge transfer operation from the capacitive element to the capacitive element, a resetting switch means for resetting the capacitive element and the capacitive element, a pixel selecting switch means, and a source follower switch means. An effective saturation capacity of the capacitive element is 10 to 5,000 times an effective saturation capacity of the capacitive element.
Public/Granted literature
- US20200177831A1 LIGHT-RECEIVING DEVICE AND METHOD FOR READING OUT SIGNAL OF LIGHT-RECEIVING DEVICE Public/Granted day:2020-06-04
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