公开(公告)号：US12086408B2

公开(公告)日：2024-09-10

申请号：US17979801

申请日：2022-11-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinwoo Hong ,  Heewoong Kang ,  Yunjung Lee

IPC: G06F3/06

CPC classification number: G06F3/0604 ,  G06F3/0619 ,  G06F3/064 ,  G06F3/0653 ,  G06F3/0679

Abstract: 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.

公开(公告)号：US20230148409A1

公开(公告)日：2023-05-11

申请号：US17979801

申请日：2022-11-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jinwoo Hong ,  Heewoong Kang ,  Yunjung Lee

IPC: G06F3/06

CPC classification number: G06F3/0604 ,  G06F3/0653 ,  G06F3/0679 ,  G06F3/064

Abstract: 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.