US Patent Issued to SK hynix on Feb. 17 for "Three-dimensional semiconductor device" (South Korean Inventor)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,627, issued on Feb. 17, was assigned to SK hynix Inc. (Icheon-si, South Korea).

"Three-dimensional semiconductor device" was invented by Nam Jae Lee (Icheon-si, 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 thereof. The semiconductor memory device includes: a source layer; a channel structure extending in a first direction from within the source layer; a source-channel contact layer surrounding the channel structure on the source layer; a first select gate layer overlapping with the source-channel contact layer and surrounding the channel structure; a stack incl...