Samsung Electronics Co., Ltd.

Heewoong Kang

Jinwoo Hong

Yunjung Lee

A memory controller may include: a weight management unit configured to store a weight based on a read disturb strength of each of the plurality of word lines of the plurality of memory blocks; a counter configured to increase a read count of a management group that includes a target word line, based on the weight of the target word line obtained from the weight management unit, the counter configured to increase the read count in response to the controller receiving a read request for the target word line from an external host device; and a verification operation determination unit configured to determine whether to perform or to not perform a word line verification operation based on a comparison of a reference interval count with the read count of the management group that includes the target word line.

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Suwon-si, South Korea

Heewoong Kang