ALEXANDRIA, Va., June 10 -- United States Patent no. 12,293,968, issued on May 6, was assigned to Kioxia Corp. (Tokyo).

"Semiconductor device" was invented by Megumi Ishiduki (Yokkaichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a semiconductor device includes a stacked body in which a plurality of conductive layers including upper conductive layers and lower conductive layers are stacked to be apart from each other in a first direction, and which includes a stairs-shaped end portion, the upper conductive layers functioning as select gate lines for a NAND string, and the lower conductive layers functioning as word lines for the NAND string, a plurality of pillar struct...