ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,700,434, issued on Aug. 4, was assigned to Tokyo Electron Ltd. (Tokyo).
"Semiconductor memory device" was invented by Motoyuki Sato (Tokyo) and Kiyotaka Imai (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a semiconductor memory device including a first die and a second die disposed on the first die. The first die includes a substrate, a memory cell array having a plurality of memory cells disposed along a first direction perpendicular to a main surface of the substrate, a plurality of first conductive lines electrically connected to the memory cell array and extending in the first direction, the first conductive lines being bit lines o...