FLASH MEMORY DEVICE WITH ERROR CORRECTION FUNCTION

摘要

PROBLEM TO BE SOLVED: To provide a nonvolatile memory for preventing transcription of an erroneous bit of source data after copy back.

SOLUTION: In order to prevent transcription of a unique bit error, this NAND type flash memory is equipped with: a circuit which corrects the bit error of the source data of a specific page which is stored in a page buffer; a means which supplies the source data to the above circuit and provides the correction data corrected by the circuit to the page buffer; and a means which copies the source data to the page buffer and stores the corrected data into another page from the page buffer.

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