ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,021, issued on May 6, was assigned to KIOXIA Corp. (Tokyo).
"Semiconductor memory device" was invented by Tomonori Kajino (Yokkaichi, Japan), Taichi Iwasaki (Yokkaichi, Japan), Tatsuya Fujishima (Yokkaichi, Japan), Masayuki Shishido (Yokkaichi, Japan) and Nozomi Kido (Yokkaichi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor memory device according to an embodiment includes a substrate, a source line, word lines, a pillar, and a first member. The first member is provided to penetrate the source line. The first member includes a first portion which is far from the substrate, and a second portion which is near the substrate. The ...