ALEXANDRIA, Va., March 31 -- United States Patent no. 12,593,446, issued on March 31, was assigned to United Microelectronics Corp. (Hsinchu, Taiwan).
"Semiconductor device" was invented by Hung Hsun Shuai (Tainan City, Taiwan) and Chih-Jung Chen (Hsinchu County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes a substrate, a doped ring, a plurality of contacts, and a plurality of conductive lines. The substrate includes a first region and a second region surrounding the first region. The doped ring is located in the substrate in the second region and surrounds the first region. The doped ring includes a first doped region and a plurality of second doped regions. The firs...