The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2023
Filed:
Sep. 14, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Minsu Kim, Seongnam-si, KR;
Namhyung Kim, Seoul, KR;
Daejeong Kim, Seoul, KR;
Dohan Kim, Hwaseong-si, KR;
Chanik Park, Seongnam-si, KR;
Deokho Seo, Suwon-si, KR;
Wonjae Shin, Seoul, KR;
Changmin Lee, Hwaseong-si, KR;
Ilguy Jung, Hwaseong-si, KR;
Insu Choi, Hwaseong-si, JP;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
Provided are a memory device skipping a refresh operation and an operating method thereof. The memory device includes a memory cell array including N rows; a refresh controller configured to control a refresh operation for the N rows of the memory cell array based on a refresh command; and an access information storage circuit including a plurality of registers configured to store flag information corresponding to each of the N rows, wherein a first value indicates rows that have been accessed, and a second value indicates rows that have not been accessed. The refresh controller is further configured to control whether the refresh operation is performed for a first row of the N rows at a refresh timing for the first row based on the flag information corresponding to the first row.