ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,232,315, issued on Feb. 18, was assigned to Kioxia Corp. (Tokyo).
"Semiconductor storage device" was invented by Yusuke Ochi (Yokkaichi Mie, Japan), Ryota Katsumata (Yokkaichi Mie, Japan) and Masahiro Fukuda (Kuwana Mie, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor storage device includes a plurality of conductor layers that are stacked in a first direction and a plurality of bit lines that are spaced from each other in a second direction. Pillars extend in the first direction through the conductor layers and are electrically connected to the bit lines. An insulator is provided that divides the region in which the plurality of pi...