Rejuvenation of analog memory cells
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United States of America Patent
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Aug 21, 2012
Grant Date -
Jul 1, 2010
app pub date -
Dec 30, 2009
filing date -
Dec 31, 2008
priority date (Note) -
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Abstract
A method for data storage in a memory that includes multiple analog memory cells fabricated using respective physical media, includes identifying a group of the memory cells whose physical media have deteriorated over time below a given storage quality level. A rejuvenation process, which causes the physical media of the memory cells in the group to meet the given storage quality level, is applied to the identified group. Data is stored in the rejuvenated group of the memory cells.
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