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EMERGING BAD BLOCK DETECTION

  • US 20080307270A1
  • Filed: 06/07/2007
  • Published: 12/11/2008
  • Est. Priority Date: 06/07/2007
  • Status: Active Grant
First Claim
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1. A method of monitoring a block of a non-volatile integrated circuit memory device, the method comprising:

  • decoding error correction codes to determine whether or not a page of data of the block of the memory device was read with at least one error; and

    maintaining a history of errors for the block of the memory device corresponding to the page that was read at least when the page was read with at least one error, wherein the history of errors is used to indicate whether or not to retire the block early.

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