Method of managing defects in flash disk memories

Details Method of managing defects in flash disk memories Method of managing defects in flash disk memories

1996-08-12

2000-01-11

Le, Dieu-Minh T.

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

365218, 714710, G06F 1100

Patent

active

060147555

ABSTRACT:
A method for monitoring the operations of a flash memory array divided into individually erasable blocks of memory in order to assure the integrity of data stored in the array in which each read or write operation is verified to detect an error which may have occurred in the operation including the steps of attempting at least one retry operation whenever an error occurs to determine whether the error is repeatable, marking the block to indicate valid data should be removed from the block if the error is found to be repeatable, removing the valid information from the block if the error is found to be repeatable, and removing a block with a repeatable error from operation.

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