Managing of the erasing of operative pages of a flash memory device through service pages
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United States of America Patent
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-
Jan 19, 2016
Grant Date -
Oct 17, 2013
app pub date -
Apr 10, 2013
filing date -
Apr 12, 2012
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for managing a flash memory device including pages of memory cells is described. The memory device may be erasable at the page level, and the pages may include operative pages for storing operative values and service pages for storing information relating to the erasing of the operative pages. In response to a request to erase selected operative pages, the method may include determining a service page in use among the service pages according to service information stored in the service pages, verifying the presence a service page to be erased, and applying an erasing pulse to each service page to be erased. The method may also include writing an address of the operative pages into the service page in use, erasing the selected operative pages, and writing a completion indication of the erasing of the selected operative pages into the service page in use.
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