ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,959, issued on March 17, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).
"Semiconductor device" was invented by Jeonghyun Kim (Suwon-si, South Korea), Sangjin Kim (Suwon-si, South Korea), Yigwon Kim (Seongnam-si, South Korea), Sungsik Park (Hwaseong-si, South Korea), Jongsu Kim (Hwaseong-si, South Korea), Youngsik Park (Hwaseong-si, South Korea), Jinseong Lee (Hwaseong-si, South Korea) and Hyekyoung Jue (Ulsan, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes a substrate including an overlay key region and a plurality of key patterns on the overlay key region. The plurality of key patt...