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:
Nov. 29, 2022
Filed:
Dec. 04, 2019
Omnivision Technologies, Inc., Santa Clara, CA (US);
Alireza Bonakdar, San Jose, CA (US);
Shinn-Jhy Lian, San Jose, CA (US);
OmniVision Technologies, Inc., Santa Clara, CA (US);
Abstract
A light sensor includes a photodiode, interlayer dielectric layer and plurality of metal layers. A polarizer is disposed in the plurality of metal layers. The photodiode is coupled to generate charge in response to incident light directed through a first side of the semiconductor layer. The polarizer includes a first metal grid formed with a first metal layer and a second metal grid formed with a third metal layer. The second metal grid is stacked with the first metal grid such that the first and second metal grids are disposed above and aligned with the photodiode. The photodiode is optically coupled to receive incident light through the first and second metal grids of the polarizer and through the first side of the semiconductor layer.