Methods of cell population distribution assisted read margining
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United States of America Patent
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Feb 8, 2011
Grant Date -
Mar 27, 2008
app pub date -
Sep 27, 2006
filing date -
Sep 27, 2006
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Abstract
A memory using techniques to extract the data content of its storage elements, when the distribution of stored states is degraded, is presented. If the distribution of stored states has degraded, secondary evaluations of the memory cells are performed using modified read conditions. Based upon the results of these supplemental evaluations, the memory device determines the read conditions at which to best decide the data stored.
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