ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,489, issued on July 1, was assigned to Taiwan Semiconductor Manufacturing Co. Ltd. (Hsin-Chu, Taiwan).

"Content addressable memory array device structure" was invented by Dian-Sheng Yu (Hsinchu, Taiwan), Chien-Chih Chen (Taichung, Taiwan) and Jhon Jhy Liaw (Hsinchu County, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Content Addressable Memory (CAM) array includes a first and a second cell structure sharing a cell boundary. The first cell structure includes a first storage circuit and a first comparator circuit, the first comparator circuit includes a first transistor having a gate, a drain, and a source. The second cell structure includes...