US 12,001,687 B2
Memory system
Marie Takada, Yokohama Kanagawa (JP); and Masanobu Shirakawa, Chigasaki Kanagawa (JP)
Assigned to Kioxia Corporation, Tokyo (JP)
Filed by Kioxia Corporation, Tokyo (JP)
Filed on Sep. 12, 2022, as Appl. No. 17/942,541.
Claims priority of application No. 2022-023110 (JP), filed on Feb. 17, 2022.
Prior Publication US 2023/0259287 A1, Aug. 17, 2023
Int. Cl. G06F 3/06 (2006.01); G06F 11/10 (2006.01)
CPC G06F 3/0619 (2013.01) [G06F 3/064 (2013.01); G06F 3/0653 (2013.01); G06F 3/0679 (2013.01); G06F 11/1068 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A memory system comprising:
a nonvolatile memory including a plurality of blocks each including a plurality of cell units, each of the cell units including a plurality of memory cells; and
a memory controller,
wherein the memory controller is configured to
read second data from a second cell unit in a first block in response to first data being written in a first cell unit in the first block, and
reserve refresh processing for the first block when the second data satisfies a condition.