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.

Date of Patent:
Sep. 12, 2017

Filed:

Dec. 28, 2015
Applicant:

Taiwan Semiconductor Manufacturing Company, Ltd., Hsin-Chu, TW;

Inventors:

Dun-Nian Yaung, Taipei, TW;

Feng-Chi Hung, Chu-Bei, TW;

Jen-Cheng Liu, Hsin-Chu, TW;

Jeng-Shyan Lin, Tainan, TW;

Shuang-Ji Tsai, Tainan, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/14685 (2013.01); H01L 27/1464 (2013.01); H01L 27/14609 (2013.01); H01L 27/14621 (2013.01); H01L 27/14629 (2013.01); H01L 27/14689 (2013.01);
Abstract

A system and method for reducing cross-talk between photosensitive diodes is provided. In an embodiment a first color filter is formed over a first photosensitive diode and a second color filter is formed over a second photosensitive diode, and a gap is formed between the first color filter and the second color filter. The gap will serve to reflect light that otherwise would have crossed from the first color filter to the second color filter, thereby reducing cross-talk between the first photosensitive diode and the second photosensitive diode. A reflective grid may also be formed between the first photosensitive diode and the second photosensitive diode in order to assist in the reflection and further reduce the amount of cross-talk.


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