US 12,451,213 B2
Optimized handling of neighbor plane disturb issues
Robin Chalana, Bengaluru (IN); Ravi Dutt Sharma, Bengaluru (IN); and Iyan Karkuvel Rajan Ayyathurai, Bengaluru (IN)
Assigned to Sandisk Technologies, Inc., Milpitas, CA (US)
Filed by Sandisk Technologies, Inc., Milpitas, CA (US)
Filed on Feb. 20, 2024, as Appl. No. 18/581,730.
Prior Publication US 2025/0266119 A1, Aug. 21, 2025
Int. Cl. G11C 29/00 (2006.01); G11C 29/12 (2006.01); G11C 29/38 (2006.01)
CPC G11C 29/886 (2013.01) [G11C 29/1201 (2013.01); G11C 29/38 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data storage device, comprising:
at least one memory die; and
a controller communicatively coupled to the at least one memory die and configured to:
access a metablock of the at least one memory die, wherein the metablock includes a plurality of memory blocks;
determine whether two or more memory blocks of the plurality of memory blocks have failed a first fault assessment;
based in part, on determining the two or more memory blocks have failed the first fault assessment, assign at least the two or more memory blocks of the plurality of memory blocks to a retry pool;
perform a second fault assessment on the at least the two or more memory blocks of the plurality of memory blocks assigned to the retry pool; and
make a fault determination on each of the at least the two or more memory blocks based, at least in part, on the second fault assessment.