US Patent Issued to SK hynix on April 14 for "Semiconductor memory device and manufacturing method of semiconductor memory device" (South Korean Inventor)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,604,471, issued on April 14, was assigned to SK hynix Inc. (Icheon-si, South Korea).

"Semiconductor memory device and manufacturing method of semiconductor memory device" was invented by Kun Young Lee (Icheon-si Gyeonggi-do, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "There are provided a semiconductor memory device and a manufacturing method of a semiconductor memory device. The semiconductor memory device may include a stack structure including a plurality of conductive layers, a hole formed in the stack structure, a memory layer allowing a first part and a second part of the hole to be spaced apart from each other in the hole, and a f...