Patent ID: 11961553
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. The method of claim 12, wherein:
the plurality of states further include a third state that differs from the second state,
the plurality of read voltages further include a second read voltage that distinguishes the second state and the and third state, and
searching the plurality of read voltages further includes:
selecting n second read voltage levels of the second read voltage wherein a number of second read voltage levels is equal to the number of times the data read operation is performed, wherein the n second read voltage levels differ from each other;
generating n second cell count values by performing n data read operations on the plurality of memory cells using all of the n second read voltage levels; and
determining a second optimal read voltage level of the second read voltage by performing the regression analysis based on the first-order polynomial using the n second read voltage levels and the n second cell count values.