US Patent Issued to Sandisk Technologies on Dec. 30 for "Three-dimensional memory device containing source rails and method of making the same" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,899, issued on Dec. 30, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).

"Three-dimensional memory device containing source rails and method of making the same" was invented by Takaaki Iwai (Yokkaichi, Japan), Tomohiro Kubo (Yokkaichi, Japan) and Kento Iseri (Yokkaichi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional memory device includes a source-level structure located over a substrate, an alternating stack of insulating layers and electrically conductive layers located over the source-level structure, memory openings vertically extending through the alternating stack, and memory opening fill structures locat...