Non-volatile semiconductor storage apparatus
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United States of America Patent
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Apr 10, 2018
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app pub date -
Oct 30, 2014
filing date -
Jul 31, 2012
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Abstract
According to one embodiment, a non-volatile semiconductor storage apparatus is configured to decide determination periods respectively corresponding to each of management blocks based on rewrite count information items and a temperature, and to perform a determination processing for each of management blocks for each determination period. The determination processing includes determining whether first data read from a block in the blocks is normal based on the number of errors that are occurred in the first data. The apparatus is configured to perform a rewrite processing of rewriting the first data to second data which is error-corrected when it is determined that the first data is not normal.
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