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.

Date of Patent:
Mar. 18, 2025

Filed:

Jul. 07, 2021
Applicant:

Sony Semiconductor Solutions Corporation, Kanagawa, JP;

Inventors:

Itaru Oshiyama, Kanagawa, JP;

Yoshiki Ebiko, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 31/0236 (2006.01); H01L 31/0216 (2014.01); H01L 31/18 (2006.01);
U.S. Cl.
CPC ...
H01L 31/02366 (2013.01); H01L 31/02164 (2013.01); H01L 31/1868 (2013.01);
Abstract

A first photodetector according to an embodiment of the present disclosure includes: a substrate having a first surface that serves as a light-receiving surface and a second surface opposed to the first surface, and including an uneven structure provided on the first surface and a light-receiving section that performs photoelectric conversion to generate electric charge corresponding to an amount of light reception for each pixel; a passivation film stacked on the first surface of the substrate; and a reflectance adjustment layer including a plurality of protrusions configuring the uneven structure and the passivation film embedded in a plurality of recesses configuring the uneven structure, and having a refractive index between the substrate and the passivation film.


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