ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,429, issued on March 25, was assigned to TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD. (Hsinchu, Taiwan).

"Voltage tracking circuit and method of operating the same" was invented by Hsiang-Hui Cheng (Hsinchu, Taiwan) and Chia-Jung Chang (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A voltage tracking circuit includes a first, second, third and fourth transistor. The first transistor is in a first well, the first transistor including a first source terminal and a first body terminal that are coupled to a first voltage supply. The second transistor includes a second source terminal being coupled to the first drain terminal, a seco...