Patents Examined by Marchochee Chery
  • Flash memory blocks with extended data retention
    Patent number: 9218881
    Abstract: A NAND flash memory chip includes a first partition that has smaller memory cells, with smaller charge storage elements, and a second partition that has larger memory cells, with larger charge storage elements, in the same memory array. Data is selected for storage in the first or second partition according to characteristics, or expected characteristics, of the data.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 22, 2015
    Assignee: SanDisk Technologies Inc.
    Inventors: Nian Niles Yang, Chris Nga Yee Avila, Steven T. Sprouse