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:
Dec. 30, 2025
Filed:
Sep. 16, 2022
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Yu Maehashi, Tokyo, JP;
Keita Torii, Kanagawa, JP;
Takayuki Suzuki, Kanagawa, JP;
Junji Iwata, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10F 39/00 (2025.01); H10F 30/225 (2025.01);
U.S. Cl.
CPC ...
H10F 39/807 (2025.01); H10F 30/225 (2025.01); H10F 39/8057 (2025.01);
Abstract
A photoelectric conversion device includes a substrate, a photoelectric conversion unit arranged in the substrate and configured to generate charges corresponding to incident light, and a pixel isolation portion arranged in the substrate and isolating the photoelectric conversion unit from other elements. A sidewall of the pixel isolation portion has a plurality of depressions and protrusions in a cross-sectional view. A period of at least a part of the plurality of depressions and protrusions is greater than ½ of a wavelength of light to which the photoelectric conversion unit has sensitivity.