Patent ID: 11894080
Assignee: SANDISK TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 7:
8. A method of operating a non-volatile semiconductor memory device, the method comprising:
acquiring a first set of read levels on a wordline of a first block of pages of a first set of memory cells;
performing, using the first set of read levels, a first read operation on a page of a second block of pages of a second set of memory cells of the plurality of memory cells;
determining whether a fail bit count of the page after the first read operation is above a threshold amount;
in response to determining that the fail bit count of the page after the first read operation is above the threshold amount, acquiring a second set of read levels on a first wordline of the second block;
performing, using the second set of read levels, a second read operation on the page;
determining whether a fail bit count of the page after the second read operation is above the threshold amount;
in response to determining that the fail bit count of the page after the second read operation is above the threshold amount, acquiring a third set of read levels on a second wordline of the second block; and
performing, using the third set of read levels, a third read operation on the page.