ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,550,325, issued on Feb. 10, was assigned to Semiconductor Energy Laboratory Co. Ltd. (Atsugi, Japan).
"Semiconductor device and electronic device" was invented by Hiromichi Godo (Kanagawa, Japan), Hitoshi Kunitake (Kanagawa, Japan) and Kazuki Tsuda (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A novel semiconductor device is provided. A memory string extends in a Z direction. The memory string achieves high-speed operation by using an oxide semiconductor for a semiconductor layer. The memory string includes a MONOS memory cell. A tunnel layer is provided on a control gate side, and a block layer is provided on a semiconductor side. Dur...