ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,563,726, issued on Feb. 24, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Gyeonggi-Do, South Korea).

"Semiconductor devices and data storage systems including the same" was invented by Junsuk Kim (Suwon-si, South Korea), Donghoon Kwon (Hwaseong-si, South Korea), Kiwoong Kim (Seoul, South Korea), Chungki Min (Hwaseong-si, South Korea), Youngbeom Pyon (Suwon-si, South Korea) and Changsun Hwang (Hwaseong-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor device includes a substrate; a first stack structure including first gate electrodes on the substrate; and a second stack structure on the first stack structure; wherein the fir...