US Patent Issued to SK hynix on March 18 for "Semiconductor memory device and method of manufacturing the same" (South Korean Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,255,237, issued on March 18, was assigned to SK hynix Inc. (Icheon-si, South Korea).

"Semiconductor memory device and method of manufacturing the same" was invented by Chang Soo Lee (Icheon-si, South Korea), Young Ho Yang (Icheon-si, South Korea), Sung Soon Kim (Icheon-si, South Korea), Hee Soo Kim (Icheon-si, South Korea), Hee Do Na (Icheon-si, South Korea) and Min Sik Jang (Icheon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiconductor memory device, and a method of manufacturing the semiconductor memory device, includes a first source layer, a second source layer on the first source layer, a stack on the second source layer, a...