公开(公告)号：US20170133085A1

公开(公告)日：2017-05-11

申请号：US15343977

申请日：2016-11-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Joong KIM ,  Ho-young SONG ,  Hoi-ju CHUNG ,  Ju-yun JUNG ,  Sang-uhn CHA

IPC: G11C11/406 ,  G11C11/4096 ,  G06F3/06

CPC classification number: G11C11/4096 ,  G06F3/0619 ,  G06F3/0659 ,  G06F3/0673 ,  G11C7/1063 ,  G11C11/40611 ,  G11C11/40622 ,  G11C29/025 ,  G11C29/028 ,  G11C29/04 ,  G11C29/50016 ,  G11C29/52 ,  G11C2029/0403 ,  G11C2029/0409 ,  G11C2029/1202 ,  G11C2029/5002 ,  G11C2211/4068

Abstract: Provided are a memory device and a memory system performing request-based refresh, and an operating method of the memory device. The operating method includes: determining a weak row by counting an activated number of at least one row; requesting for refresh on the weak row based on a result of the determining; and performing target refresh on the weak row upon receiving a refresh command according to the requesting.

公开(公告)号：US20180190340A1

公开(公告)日：2018-07-05

申请号：US15909220

申请日：2018-03-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyun-Joong KIM ,  Ho-young SONG ,  Hoi-ju CHUNG ,  Ju-yun JUNG ,  Sang-uhn CHA

IPC: G11C11/4096 ,  G11C7/10 ,  G06F3/06

CPC classification number: G11C11/4096 ,  G06F3/0619 ,  G06F3/0659 ,  G06F3/0673 ,  G11C7/1063 ,  G11C11/40611 ,  G11C11/40622 ,  G11C29/025 ,  G11C29/028 ,  G11C29/04 ,  G11C29/50016 ,  G11C29/52 ,  G11C2029/0403 ,  G11C2029/0409 ,  G11C2029/1202 ,  G11C2029/5002 ,  G11C2211/4068

Abstract: Provided are a memory device and a memory system performing request-based refresh, and an operating method of the memory device. The operating method includes: determining a weak row by counting an activated number of at least one row; requesting for refresh on the weak row based on a result of the determining; and performing target refresh on the weak row upon receiving a refresh command according to the requesting.