ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,745, issued on Oct. 28, was assigned to Kioxia Corp. (Tokyo).
"Semiconductor memory device" was invented by Yusuke Okumura (Yokkaichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to one embodiment, a semiconductor memory device includes a plurality of conductive layers, each of the plurality of conductive layers including a first portion, and a second portion that is thicker than the first portion, a first insulator portion that contacts the second portion of a first conductive layer and the second portion of a second conductive layer, and a second insulator portion that contacts the second portion of a third conductive layer, whe...