Memory device configured to refresh memory cells in a power-down state
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United States of America Patent
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Apr 26, 2011
Grant Date -
Mar 1, 2007
app pub date -
Aug 24, 2006
filing date -
Aug 24, 2005
priority date (Note) -
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Abstract
A memory capable of preventing a memory cell from disappearance of data resulting from accumulated disturbances is obtained. This memory comprises a nonvolatile memory cell and a refresh portion for rewriting data in the memory cell. The refresh portion reads data from and rewrites data in the memory cell in a power-down state.
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