Patent ID: 11972791
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 8:
9. The method of claim 7, wherein obtaining the cell counts includes:
counting first on-cells having threshold voltages lower than or equal to the first count voltage level by applying a first read voltage having the first count voltage level to a wordline connected to the plurality of memory cells;
counting second on-cells having threshold voltages lower than or equal to the second count voltage level by applying a second read voltage having the second count voltage level to the wordline;
counting third on-cells having threshold voltages lower than or equal to the third count voltage level by applying a third read voltage having the third count voltage level to the wordline;
calculating the first cell count by subtracting a number of the first on-cells from a number of the second on-cells; and
calculating the second cell count by subtracting the number of the second on-cells from a number of the third on-cells.