ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,501,640, issued on Dec. 16, was assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. (Hsinchu, Taiwan).

"Semiconductor device and manufacturing method thereof" was invented by Jiun Shiung Wu (Pingtung County, Taiwan) and Guan-Jie Shen (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a method of manufacturing a semiconductor device, a fin structure having a bottom part and an upper part on the bottom part is formed over a substrate. The bottom part is trimmed so that a width of an uppermost portion of the bottom part is smaller than a width of the upper part. Bottom end corners of the upper part are trimmed to reduce a width of t...