Patent ID: 11972111
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A method of operating a memory device, the method comprising:
performing a first program loop comprising a first program operation and a first verify operation on a plurality of memory cells;
determining a compensation voltage level based on a result of the first verify operation; and
performing a second program loop comprising a second program operation, the second program operation being performed based on the determined compensation voltage level,
wherein the first verify operation comprises first even sensing and second even sensing on even-numbered bit lines of the memory device, and first odd sensing and second odd sensing on odd-numbered bit lines of the memory device;
setting a difference value between an on-cell number of the first even sensing and an on- cell number of the second even sensing as a first count value; and
setting a difference value between an on-cell number of the first odd sensing and an on- cell number of the second odd sensing as a second count value,
wherein the first count value corresponds to a number of memory cells having a threshold voltage greater than a first voltage level of the first even sensing and less than a second voltage level of the second even sensing, and
wherein the second count value corresponds to a number of memory cells having a threshold voltage greater than a third voltage level of the first odd sensing and less than a fourth voltage level of the second odd sensing.