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:
Mar. 09, 2021
Filed:
Apr. 22, 2019
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Wei Chuang Wu, Tainan, TW;
Jhy-Jyi Sze, Hsinchu, TW;
Yu-Jen Wang, Kaohsiung, TW;
Yen-Chang Chu, Tainan, TW;
Shyh-Fann Ting, Tainan, TW;
Ching-Chun Wang, Tainan, TW;
Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;
Abstract
Various structures of image sensors are disclosed, as well as methods of forming the image sensors. According to an embodiment, a structure comprises a substrate comprising photo diodes, an oxide layer on the substrate, recesses in the oxide layer and corresponding to the photo diodes, a reflective guide material on a sidewall of each of the recesses, and color filters each being disposed in a respective one of the recesses. The oxide layer and the reflective guide material form a grid among the color filters, and at least a portion of the oxide layer and a portion of the reflective guide material are disposed between neighboring color filters.