Invention Grant
- Patent Title: Memory device and memory system performing request-based refresh, and operating method of the memory device
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Application No.: US15343977Application Date: 2016-11-04
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Publication No.: US09940991B2Publication Date: 2018-04-10
- Inventor: Hyun-Joong Kim , Ho-young Song , Hoi-ju Chung , Ju-yun Jung , Sang-uhn Cha
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do
- Agency: Muir Patent Law, PLLC
- Priority: KR10-2015-0155797 20151106
- Main IPC: G11C7/00
- IPC: G11C7/00 ; G11C11/4096 ; G06F3/06 ; G11C7/10 ; G11C11/406 ; G11C29/02 ; G11C29/04 ; G11C29/52 ; G11C29/50 ; G11C29/12
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.
Public/Granted literature
Information query
