Apparatuses and methods for determining stability of a memory cell
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United States of America Patent
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Jul 22, 2014
Grant Date -
Apr 18, 2013
app pub date -
Oct 18, 2011
filing date -
Oct 18, 2011
priority date (Note) -
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Abstract
Examples described include apparatuses and methods for determining stability of memory cells. Resistance variable memory cells may be used. Once a memory cell is placed in a low or high resistance state responsive to set or reset pulses, the stability of the state may be determined, such as by providing another pulse to the memory cell or otherwise stressing the cell. The another pulse may be of an opposite polarity to the set or reset pulses already applied. If the memory cell is no longer in the target state after providing the another pulse, additional set or reset pulses may be applied to achieve a stable state.
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