US Patent Issued to SK keyfoundry on Sept. 30 for "Mask-programmable read only memory with electrically isolated cells" (South Korean Inventor)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,912, issued on Sept. 30, was assigned to SK keyfoundry Inc. (Cheongju-si, South Korea).

"Mask-programmable read only memory with electrically isolated cells" was invented by Mingyu Lim (Cheongju-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mask-programmable read only memory (ROM) is provided. The mask ROM includes first and second unit cells; an isolation gate electrode that isolates the first unit cell and the second unit cell; and a bit line that crosses the first and second unit cells. The first unit cell includes: a first source contact and a first bit line contact which are disposed on a semiconductor substrate; and a first...