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:
Jan. 12, 2021
Filed:
Apr. 17, 2019
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventors:
Assignee:
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1464 (2013.01); H01L 27/1462 (2013.01); H01L 27/1463 (2013.01); H01L 27/14609 (2013.01); H01L 27/14623 (2013.01); H01L 27/14629 (2013.01); H01L 27/14636 (2013.01); H01L 27/14685 (2013.01); H01L 27/14687 (2013.01); H01L 27/14698 (2013.01);
Abstract
A back-side illuminated image sensor includes memory regions formed in a semiconductor wafer. Each memory region is located between two opaque walls which extend into the semiconductor wafer. An opaque screen is arranged at the rear surface of the memory region and in electrical contact with the opaque walls.