DATA RESTORATION METHOD FOR A NON-VOLATILE MEMORY
    1.
    发明申请
    DATA RESTORATION METHOD FOR A NON-VOLATILE MEMORY 审中-公开
    非易失性存储器的数据恢复方法

    公开(公告)号:WO2010093440A3

    公开(公告)日:2010-10-21

    申请号:PCT/US2010000375

    申请日:2010-02-10

    CPC classification number: G11C16/3418 G06F11/1068 G11C2029/0411

    Abstract: A method and apparatus for selectively restoring data in a non- volatile memory array based on failure type. Weakened data and erroneous data are identified by performing two readings of a specific memory section. Alternatively, an error correction code is used after a first reading of data to identify erroneous data. The manner in which data is restored will depend on whether the data changed because of an erase failure or a program failure. If only a program failure occurred then the data will be reprogrammed without an intervening erase step. If the data experienced an erase failure, then the data will be erased prior to being programmed with correct data.

    Abstract translation: 一种用于基于故障类型选择性地恢复非易失性存储器阵列中的数据的方法和装置。 通过执行特定存储器部分的两个读数来识别弱数据和错误数据。 或者,在首次读取数据之后使用纠错码来识别错误数据。 数据恢复的方式将取决于数据是否因擦除故障或程序故障而改变。 如果仅发生程序故障,则数据将被重新编程,而无需中间擦除步骤。 如果数据经历擦除故障,则在使用正确的数据编程之前,数据将被擦除。

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