Patent ID: 11869596
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A memory system comprising:
a controller; and
a memory device electrically connected to the controller, the memory device including:
at least a first memory cell configured to be programmed to store data corresponding to a threshold voltage of the first memory cell, the first memory cell being configured to store first data in a case where the threshold voltage of the first memory cell is higher than a first reference voltage; and
a peripheral circuit configured to:
write the first data to the first memory cell in a first programming operation by:
applying a first program voltage to the first memory cell in a plurality of first loops;
obtaining a value of a first write parameter by comparing the threshold voltage of the first memory cell with a second reference voltage, the second reference voltage being lower than the first reference voltage; and
verifying that the first data is stored in the first memory cell by comparing the threshold voltage of the first memory cell with the first reference voltage; and

output the value of the first write parameter to the controller.