US Patent Issued to CHENGDU PBM TECHNOLOGY on April 21 for "Methods of manufacturing 3D programmable memory devices" (California Inventor)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,610,540, issued on April 21, was assigned to CHENGDU PBM TECHNOLOGY LTD. (Chengdu, China).

"Methods of manufacturing 3D programmable memory devices" was invented by Jack Zezhong Peng (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A fabrication method of three-dimensional programmable memory includes: 1) forming a base structure; 2) trenching the base structure; 3) setting the preset memory structure layer by layer onto the inner wall of strip trench; 4) filling the core medium in the cavity of the strip trench to form core medium layer; 5) setting the isolation trenches and isolation trench holes to isolate the left-right fingers and ...