ALEXANDRIA, Va., May 5 -- United States Patent no. 12,621,992, issued on May 5, was assigned to Kioxia Corp. (Tokyo).
"Semiconductor memory device" was invented by Takaaki Kondo (Yokkaichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor memory device according to an embodiment includes a first member and a plurality of pillars. The first member includes a first portion which is arranged locally on an upper end side and intermittently in a second direction. The plurality of pillars include first to sixth pillars. The second pillar is adjacent to the first pillar. The third pillar faces a first region between the first and second pillars. The fourth pillar is adjacent to the third pillar....