Invention Application
- Patent Title: MEMORY DEVICE FOR PROCESSING A ROW-HAMMER REFRESH OPERATION AND A METHOD OF OPERATING THEREOF
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Application No.: US17340423Application Date: 2021-06-07
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Publication No.: US20220084564A1Publication Date: 2022-03-17
- Inventor: Hyojin CHOI , Jaewon KO , Hyeongtae KIM , Younsik PARK , Hyeonsik SON
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR SUWON-SI
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR SUWON-SI
- Priority: KR10-2020-0119313 20200916
- Main IPC: G11C7/10
- IPC: G11C7/10 ; G11C11/408 ; G11C29/00

Abstract:
A memory device including: a memory cell array including a plurality of memory cell rows; an address buffer configured to store addresses of target rows of the plurality of memory cell rows, wherein the addresses of the target rows have been repeatedly accessed; a minimum access output circuit configured to select, when there are a plurality of rows having a same minimum access count among the target rows, any one of the plurality of rows having the same minimum access count as a minimum access row based on a selection command value, and to output an index value of the minimum access row; and a control circuit configured to output a command instructing replacement of an address corresponding to the index value of the minimum access row with an address of an access row and storage of the address of the access row in the address buffer.
Public/Granted literature
- US11532336B2 Memory device for processing a row-hammer refresh operation and a method of operating thereof Public/Granted day:2022-12-20
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