Patent ID: 7729156

Claim:
A method, comprising: detecting an occurrence of a qualifying event; evaluating a signal margin of a ferroelectric memory cell located within a ferroelectric random access memory (FRAM) array upon the occurrence of the qualifying event and identifying whether or not the ferroelectric memory cell comprises a weak signal bit; copying a ferroelectric memory data state associated with the weak signal bit from the ferroelectric memory cell to an alternative memory data state in an alternative memory location prior to exercising the ferroelectric memory cell associated with the weak signal bit; exercising the ferroelectric memory cell associated with the weak signal bit; and writing the alternative memory data state to the ferroelectric memory data state in the ferroelectric memory cell associated with the weak signal bit after the exercising the ferroelectric memory cell associated with the weak signal bit is completed; wherein exercising the ferroelectric memory cell is performed by applying one or more data read/re-write pulses or one two or more alternating high state and low state data read and data write pulses to the ferroelectric memory cell associated with the weak signal bit.