- Patent Title: Volatile memory device and electronic device comprising refresh information generator, information providing method thereof, and refresh control method thereof
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Application No.: US15900070Application Date: 2018-02-20
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Publication No.: US10297306B2Publication Date: 2019-05-21
- Inventor: Yanggyoon Loh , Hoyoung Song , Sangwoong Shin
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Gyeonggi-Do
- Agency: Harness, Dickey & Pierce, PLC
- Priority: KR10-2016-0013631 20160203; KR10-2016-0087630 20160711
- Main IPC: G11C11/06
- IPC: G11C11/06 ; G11C11/406 ; G06F3/06 ; G11C11/408 ; G11C11/4091 ; G11C11/4096

Abstract:
A volatile memory device includes a refresh controller configured to control a hidden refresh operation performed on a first portion of memory cells while a valid operation is performed on a second portion of the memory cells. The volatile memory device is configured to perform a regular refresh operation in response to receiving a refresh command. The refresh controller is configured to generate refresh information using a performance indicator of the hidden refresh operation during a first part of a reference time. The volatile memory device is configured to perform a desired number of the regular refresh operation during a remaining part of the reference time based on the refresh information. The desired number of the regular refresh operation is an integer based on a difference between a target number of refresh operations during the reference time and a count value of the hidden refresh operation during the reference time.
Public/Granted literature
Information query