ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,707,639, issued on Aug. 11, was assigned to SK hynix Inc. (Icheon-si, South Korea).
"Semiconductor memory device" was invented by Nam Jae Lee (Icheon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor memory device, and a method of manufacturing the semiconductor memory device, includes a gate stack, a pass gate overlapping a contact region of the gate stack and opening a cell array region of the gate stack, a doped semiconductor layer spaced apart from the pass gate and overlapping the cell array region of the gate stack, and an active pillar passing through the pass gate."
The patent was filed on Dec. 21, 2023, under Appli...