公开(公告)号：US20240221843A1

公开(公告)日：2024-07-04

申请号：US18470931

申请日：2023-09-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Minji CHO ,  Jisang LEE ,  Sehwan PARK ,  Jinyoung KIM ,  Joonsuc JANG

IPC: G11C16/26 ,  G11C16/04 ,  G11C16/08

CPC classification number: G11C16/26 ,  G11C16/0433 ,  G11C16/08

Abstract: Disclosed is a method of operating a memory device including a memory cell array. The memory cell array includes a plurality of memory cells and a plurality of word lines connected to the plurality of memory cells. The method includes performing an additional read operation on the plurality of memory cells by adjusting a voltage level applied to a selected word line WLN connected to memory cells to be additionally read for improvements in memory cell sensing characteristics and a voltage level applied to a plurality of unselected word lines WLUnselect, and performing a main read operation on the plurality of memory cells by adjusting a voltage level applied to at least one first word line among the plurality of unselected word lines WLUnselect to be different from a voltage level applied to the at least one first word line in the additional read operation.

公开(公告)号：US20220013184A1

公开(公告)日：2022-01-13

申请号：US17336910

申请日：2021-06-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Garam KIM ,  Hyunggon KIM ,  Jisang LEE ,  Joonsuc JANG ,  Wontaeck JUNG

IPC: G11C16/34 ,  G11C16/12 ,  G11C16/26 ,  G11C16/30 ,  G11C16/24

Abstract: A memory device includes a memory cell array including a plurality of memory cells; a voltage generator configured to generate voltages used for a program operation and a verify operation for the memory cells; and control logic configured to perform a plurality of program loops while writing data to the memory cell array, such that first to N-th (e.g., N>=1) program loops including a program operation and a verify operation are performed and at least two program loops in which the verify operation is skipped are performed when a pass/fail determination of the program operation in the N-th program loop indicates a pass.