US Patent Issued to Sandisk Technologies on Sept. 30 for "Three-dimensional memory device including discrete memory elements and method of making the same" (Japanese, American Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,432,917, issued on Sept. 30, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).

"Three-dimensional memory device including discrete memory elements and method of making the same" was invented by Keigo Kitazawa (Nagoya, Japan), Ippei Yasuda (Yokkaichi, Japan) and Adarsh Rajashekhar (Santa Clara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming a three-dimensional memory device includes forming an alternating stack of in-process composite layers and sacrificial material layers including a lower insulating layer, a sacrificial spacer layer including silicon nitride or a semiconductor material, and an upper insulating la...