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:
Aug. 27, 2024

Filed:

Nov. 22, 2021
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventor:

Bo-Tsung Tsai, Kaohsiung, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/146 (2006.01);
U.S. Cl.
CPC ...
H01L 27/1469 (2013.01); H01L 27/14614 (2013.01); H01L 27/14634 (2013.01); H01L 27/14636 (2013.01); H01L 27/14643 (2013.01); H01L 27/14689 (2013.01);
Abstract

A device includes a substrate, a light sensitive element, a pinning region, a lightly-doped region, a floating node, and a gate stack. The light sensitive element is in the substrate. The pinning region is in the substrate and is over the light sensitive element. The lightly-doped region is laterally adjacent the pinning region. The floating node is in the pinning region, the floating node being spaced from and surrounded by the lightly-doped region. A first portion of the pinning region is between the floating node and the lightly-doped region. The gate stack is over the first portion of the pinning region.


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