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:
Aug. 31, 2021
Filed:
Mar. 27, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Tsukasa Kosuda, Matsumoto, JP;
Atsushi Matsuo, Azumino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/024 (2006.01); H01L 27/146 (2006.01); A61B 5/00 (2006.01); A61B 5/1455 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14645 (2013.01); A61B 5/02427 (2013.01); A61B 5/14551 (2013.01); A61B 5/7203 (2013.01);
Abstract
A light receiving element includes a silicon substrate, a photodiode, an amplifier circuit adapted to amplify an output signal from the photodiode, and a light blocking section adapted to cover at least a part of the amplifier circuit to block light, and the photodiode, the amplifier circuit and the light blocking section are provided to the silicon substrate.