CPC G11C 16/26 (2013.01) [G06F 12/00 (2013.01); G11C 16/0483 (2013.01); G11C 16/16 (2013.01); G11C 16/32 (2013.01); G11C 16/3404 (2013.01)] | 20 Claims |
1. A memory apparatus, comprising:
memory cells configured to retain a threshold voltage and connected to one of a plurality of word lines and arranged in strings comprising a plurality of blocks; and
a control means coupled to the plurality of word lines and the strings and configured to:
periodically determine a read frequency metric associated with a plurality of read operations of one of the plurality of blocks of the memory cells, and
relocate data of the one of the plurality of blocks and cause the one of the plurality of blocks to remain unused for a predetermined relaxation time based on the read frequency metric.
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