ALEXANDRIA, Va., March 17 -- United States Patent no. 12,581,660, issued on March 17, was assigned to SAMSUNG ELECTRONICS Co. Ltd. (Suwon-si, South Korea).
"Semiconductor memory devices" was invented by Kyu Dong Park (Suwon-si, South Korea), Jong Hyun Paek (Suwon-si, South Korea) and Seul Ji Song (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor memory device comprises a substrate, a first conductive line extending in a first direction on the substrate, a second conductive line extending in a second direction on the first conductive line, a memory cell between the first and the second conductive lines, and a spacer covering a part of a side wall of the memory cell, wherein...