US Patent Issued to SUNRISE MEMORY on Aug. 4 for "Methods for fabrication of 3-dimensional nor memory arrays" (Arizona, California Inventors)

ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,701,701, issued on Aug. 4, was assigned to SUNRISE MEMORY Corp. (San Jose, Calif.).

"Methods for fabrication of 3-dimensional nor memory arrays" was invented by Vinod Purayath (Sedona, Ariz.), Wu-Yi Henry Chien (San Jose, Calif.) and Eli Harari (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Carbon has many advantageous uses as a sacrificial material in the fabricating thin-film storage transistors, such as those organized as NOR memory strings. In one implementation, the carbon layers are replaced by heavily doped n-type polysilicon source and drain regions at a late step during device fabrication. As a result, many high temperature ste...