Patents Represented by Attorney Daivis Wright Tremaine LLP
  • Patent number: 7961511
    Abstract: A hybrid method of programming a non-volatile memory cell to a final programmed state is described. The method described is a more robust protocol suitable for reliably programming selected memory cells while eliminating programming disturbs. The hybrid method comprises programming the non-volatile memory cell to a first state according to a first coarse programming mechanism, and programming the non-volatile memory cell according to a second different more precise programming mechanism thereby completing the programming of the non-volatile memory cell to the final programmed state. Additionally, the described method is particularly advantageous for programming multilevel chips.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: June 14, 2011
    Assignee: SanDisk Corporation
    Inventors: Dana Lee, Yingda Dong, Changyuan Chen, Jeffrey Lutze