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:
Nov. 11, 2025
Filed:
Jul. 26, 2022
Taiwan Semiconductor Manufacturing Company, Ltd., Hsinchu, TW;
Wan-Yen Lin, Hsinchu, TW;
Wun-Jie Lin, Hsinchu, TW;
Yu-Ti Su, Hsinchu, TW;
Bo-Ting Chen, Hsinchu, TW;
Jen-Chou Tseng, Hsinchu, TW;
Kuo-Ji Chen, Hsinchu, TW;
Sun-Jay Chang, Hsinchu, TW;
Min-Chang Liang, Hsinchu, TW;
TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD., Hsinchu, TW;
Abstract
A circuit device includes core circuitry. The circuit device further includes a first plurality of guard rings having a first dopant type, wherein the first plurality of guard rings is around a periphery of the core circuitry. The circuit device further includes a second plurality of guard rings having a second dopant type, wherein the second dopant type is opposite to the first dopant type, and at least one guard ring of the second plurality of guard rings is around a periphery of at least one guard ring of the first plurality of guard rings.