US Patent Issued to Sandisk Technologies on Oct. 28 for "Three-dimensional memory device including trench bridges and methods of forming the same" (California Inventor)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,742, issued on Oct. 28, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).

"Three-dimensional memory device including trench bridges and methods of forming the same" was invented by Koichi Matsuno (Fremont, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional memory device includes layer stacks each of which includes a first-tier alternating stack of first insulating layers and first electrically conductive layers and a second-tier alternating stack of second insulating layers and second electrically conductive layers separated by a backside trench. Memory opening fill structures vertically extend through a respective...