Patent ID: 11875845
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. A method for operating a memory device for performing a program operation of programming data in selected memory cells among a plurality of memory cells, the method comprising:
performing a plurality of program loops including a program voltage apply operation of applying a program voltage to the selected memory cells and a verify operation of verifying at least one of program states and an erase state of the selected memory cells;
verifying program states of memory cells programmed to a specific program state among the selected memory cells in a verify operation included in at least one program loop corresponding to the specific program state among the plurality of program loops;
applying a predetermined lowest program voltage to the selected memory cells after a verify operation on the specific program state passes; and
verifying, after the lowest program voltage is applied to the selected memory cells, an erase state of memory cells programmed to an erase state among the selected memory cells in the verify operation included in the at least one program loop corresponding to the specific program state.