ALEXANDRIA, Va., June 10 -- United States Patent no. 12,293,967, issued on May 6, was assigned to SK hynix Inc. (Icheon-si, South Korea).
"Three-dimensional semiconductor device" was invented by Sung Lae Oh (Icheon-si, South Korea), Sang Woo Park (Icheon-si, South Korea) and Dong Hyuk Chae (Icheon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional semiconductor device may comprise a first cell region, a second cell region, and a via plug region disposed between the first cell region and the second cell region; a word line stack disposed in the first cell region, the via plug region, and the second cell region, the word line stack including a plurality of word lines and a plura...