ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,468,462, issued on Nov. 11, was assigned to Sandisk Technologies Inc. (Milpitas, Calif.).
"Multi-tier sub-block mode operation" was invented by Xiang Yang (Santa Clara, Calif.), Wei Cao (Fremont, Calif.) and Jiacen Guo (Cupertino, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A storage device is disclosed herein. The storage device comprises a non-volatile memory, where the non-volatile memory includes a block of 3N wordlines partitioned into a plurality of sub-blocks. The plurality of sub-blocks include an upper sub-block of a first subset of the block of 3N wordlines, a lower sub-block of a second subset of the block of 3N wordlines, and a mid...