Refresh of non-volatile memory cells based on fatigue...

Details Refresh of non-volatile memory cells based on fatigue... Refresh of non-volatile memory cells based on fatigue...

2007-07-19

2011-11-15

Baker, Stephen (Department: 2112)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Replacement of memory spare location, portion, or segment

C714S764000

Reexamination Certificate

active

08060798

ABSTRACT:
In one or more of the disclosed embodiments, memory cells in a memory device are refreshed upon an indication of a fatigue condition. In one such embodiment, controller monitors behavior parameters of the cells and determines if any of the parameters are outside of a normal range set for each one, thus indicating a fatigue condition. If any cell indicates a fatigue condition, the data from the block of cells indicating the fatigue is moved to another block. In one embodiment, an error detection and correction process is performed on the data prior to being written into another memory block.

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