BIT ERROR THRESHOLD AND REMAPPING OF MEMORY DEVICE

摘要

PROBLEM TO BE SOLVED: To improve reliability by prolonging a life of a memory device to a life in many memory cells rather than that in a relatively small number of memory cells.

SOLUTION: The method includes the steps of:determining a bit error rate and/or a number of bit errors associated with a signal indicating information read from a particular part of a memory; comparing the bit error rate and/or the number of bit errors with an error threshold; and determining whether to retire the particular part of the memory at least partially based on the comparison.

COPYRIGHT: (C)2011,JPO&INPIT