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:
Sep. 01, 2015
Filed:
Mar. 13, 2013
Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chin, TW;
Yun-Wei Cheng, Taipei, TW;
Volume Chien, Sinying, TW;
Chao Chih-Kang, Tainan, TW;
Chi-Cherng Jeng, Madou Township, TW;
Chen Hsin-Chi, Tainan, TW;
Taiwan Semiconductor Manufacturing Company Limited, Hsin-Chu, TW;
Abstract
Among other things, one or more image sensors and techniques for guiding light towards a photodiode are provided. An image sensor comprises a metal grid configured to direct light towards a corresponding photodiode and away from other photodiodes. The image sensor also comprises a dielectric grid and a filler grid over the metal grid to direct light towards the corresponding photodiode and away from other photodiodes, where the filler grid has a different refractive index than the dielectric grid. In this way, crosstalk, otherwise resulting from detection of light by incorrect photodiodes, is mitigated.