The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2025
Filed:
Sep. 29, 2022
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Yasunori Tsukuda, Kanagawa, JP;
Shohei Shimada, Kanagawa, JP;
Yannick Baines, Tokyo, JP;
Takeshi Matsunuma, Kanagawa, JP;
Sony Semiconductor Solutions Corporation, Kanagawa, JP;
Abstract
Optical detection devices wherein a bias voltage of a photoelectric conversion element is accurately adjustable regardless of a quantity of incident light are disclosed. In one example, an optical detection device includes a first pixel that has a photoelectric conversion element for generating a carrier by photoelectric conversion, a second pixel that has a carrier generation unit for generating a carrier by a cause other than photoelectric conversion, and a control circuit that controls a bias voltage applied to each of the photoelectric conversion element and the carrier generation unit, according to the carrier generated by the second pixel. The photoelectric conversion element includes a first photoelectric conversion region and a first pinning film disposed at a position in contact with the first photoelectric conversion region. The carrier generation unit includes a second photoelectric conversion region, and includes a second pinning film that is partially removed.