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Wear leveling of static areas in flash memory

  • US 6,732,221 B2
  • Filed: 06/01/2001
  • Issued: 05/04/2004
  • Est. Priority Date: 06/01/2001
  • Status: Expired due to Term
First Claim
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1. A method for wear leveling in flash storage media, comprising the steps of:

  • i. activating the wear leveling method at least once per some number of operations done by a flash data manager;

    ii. selecting a unit in the media, independently of how often said unit has been erased and in a manner that successive selections will ultimately select all units;

    iii. moving selected unit data from the media to a free unit in the media, and erasing said selected unit.

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