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:
Jun. 08, 2021
Filed:
Oct. 02, 2019
Sony Corporation, Tokyo, JP;
Hirotoshi Nomura, Kanagawa, JP;
SONY CORPORATION, Tokyo, JP;
Abstract
A solid-state imaging device includes a photoelectric conversion unit, a light shielding unit and a transfer transistor. The photoelectric conversion unit generates charges by photoelectrically converting light. The light shielding unit is formed by engraving a semiconductor substrate on which the photoelectric conversion unit is formed, so as to surround an outer periphery of the photoelectric conversion unit. The transfer transistor transfers charges generated in the photoelectric conversion unit. During a charge accumulation period in which charges are accumulated in the photoelectric conversion unit, a potential that repels the charges is supplied to the light shielding unit and a gate electrode of the transfer transistor. During a charge transfer period in which charges are transferred from the photoelectric conversion unit, a potential that repels the charges is supplied to the light shielding unit and a potential that attracts the charges is supplied to the gate electrode of the transfer transistor.