ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,694, issued on April 8, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (South Korea).

"Semiconductor device" was invented by Dae Seong Lee (Busan, South Korea), Ah Reum Kim (Daegu, South Korea) and Min Su Kim (Hwaseong-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes first, second, and third power rails extending in a first direction on a substrate and sequentially spaced apart in a second direction intersecting the first direction. A fourth power rail extends in the first direction on the substrate between the first and third power rails. A first well of a first conductive type is displaced inside the sub...