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Read disturb handling in NAND flash

机译:NAND闪存中的读取干扰处理

摘要

An apparatus having a processor and an interface to a nonvolatile memory having a plurality of blocks is disclosed. The processor is configured to (i) monitor a number of reads since a respective erase in at least one of the blocks in the nonvolatile memory, (ii) move a page from a first block to a second block in response to the number of reads exceeding a first threshold where the first block is partially programmed and (iii) move the page from the first block to the second block in response to the number of reads exceeding a second threshold where the first block is fully programmed. The first threshold is less than the second threshold.
机译:公开了一种具有处理器和到具有多个块的非易失性存储器的接口的装置。处理器被配置为(i)监视读取次数,因为非易失性存储器中的至少一个块中的相应擦除,(ii)响应于读取次数将页面从第一块移动到第二块。超过第一部分被部分编程的第一阈值,并且(iii)响应于读取数量超过第一块被完全编程的第二阈值,将页面从第一块移动到第二块。第一阈值小于第二阈值。

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