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:
May. 23, 2023
Filed:
Sep. 30, 2020
Taiwan Semiconductor Manufacturing Company Ltd., Hsinchu, TW;
Keng-Yu Chou, Kaohsiung, TW;
Wei-Chieh Chiang, Changhua County, TW;
Chen-Jong Wang, Hsinchu County, TW;
Chien-Hsien Tseng, Hsinchu, TW;
Kazuaki Hashimoto, Hsinchu County, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD., Hsinchu, TW;
Abstract
A BSI image sensor includes a substrate including a front side and a back side opposite to the front side, a plurality of pixel sensors, an isolation grid disposed in the substrate and separating the plurality of pixel sensors from each other, a reflective grid disposed over the isolation grid on the back side of the substrate, an a low-n grid disposed over the back side of the substrate and overlapping the reflective grid from a top view. A width of the low-n grid is greater than a width of the reflective grid.