ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,471,326, issued on Nov. 11, was assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. (Hsinchu, Taiwan).

"Guard ring and circuit device" was invented by Wan-Yen Lin (Hsinchu, Taiwan), Wun-Jie Lin (Hsinchu, Taiwan), Yu-Ti Su (Hsinchu, Taiwan), Bo-Ting Chen (Hsinchu, Taiwan), Jen-Chou Tseng (Hsinchu, Taiwan), Kuo-Ji Chen (Hsinchu, Taiwan), Sun-Jay Chang (Hsinchu, Taiwan) and Min-Chang Liang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 perip...