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:
Mar. 05, 2024

Filed:

Jan. 04, 2021
Applicant:

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

Inventors:

Keng-Yu Chou, Kaohsiung, TW;

Chun-Hao Chuang, Hsinchu, TW;

Jen-Cheng Liu, Hsin-Chu, TW;

Kazuaki Hashimoto, Zhubei, TW;

Ming-En Chen, Tainan, TW;

Shyh-Fann Ting, Tainan, TW;

Shuang-Ji Tsai, Tainan, TW;

Wei-Chieh Chiang, Yuanlin Township, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01); H04N 25/11 (2023.01); H04N 25/77 (2023.01);
U.S. Cl.
CPC ...
H01L 27/14627 (2013.01); H01L 27/14636 (2013.01); H01L 27/14685 (2013.01); H04N 25/77 (2023.01); H04N 25/11 (2023.01);
Abstract

The present disclosure relates to an integrated chip. The integrated chip includes an image sensing element disposed within a substrate. A gate structure is disposed along a front-side of the substrate. A back-side of the substrate includes one or more first angled surfaces defining a central diffuser disposed over the image sensing element. The back-side of the substrate further includes second angled surfaces defining a plurality of peripheral diffusers laterally surrounding the central diffuser. The plurality of peripheral diffusers are a smaller size than the central diffuser.


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