×

Non-volatile memory and method with accelerated post-write read using combined verification of multiple pages

  • US 8,726,104 B2
  • Filed: 07/28/2011
  • Issued: 05/13/2014
  • Est. Priority Date: 07/28/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method of operating a memory system including an array of non-volatile cells formed along a plurality of bit lines and a plurality of word lines, the word lines each capable of storing one or more pages of data, the method comprising:

  • writing multiple pages of data into the array;

    subsequently reading a plurality of the written pages of data from the array;

    forming a composite data structure of the plurality of read pages, wherein forming a composite data structure of the plurality of read pages includes performing an exclusive OR operation of the plurality of read pages on a bit line by bit line basis; and

    performing an evaluation of at least a portion of the composite data structure to determine the presence of high error rate in the plurality of pages of data as written.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×