Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 15, 2011
Patent Application Number
12529282
Date Filed
September 22, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
A semiconductor storage device can efficiently perform a refresh operation. A semiconductor storage device is provided which includes a non-volatile semiconductor memory storing data in blocks, the block being a unit of data erasing. A controlling unit is further included monitoring an error count of data stored in a monitored block selected from the blocks and for refreshing data in the monitored block in which the error count is equal to or larger than a threshold value.
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