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.

Date of Patent:
Dec. 08, 2020

Filed:

Mar. 15, 2019
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Hoon Shin, Hwaseong-si, KR;

Do-Yeon Kim, Seoul, KR;

Ho-Young Song, Hwaseong-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G11C 11/406 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0622 (2013.01); G06F 3/0629 (2013.01); G06F 3/0679 (2013.01); G06F 12/0207 (2013.01); G11C 11/406 (2013.01); G06F 2212/25 (2013.01);
Abstract

Provided are memory devices configured to perform row hammer handling operations, and memory systems including such memory devices. An example memory device may include a memory cell array including a plurality of memory cell rows; a row hammer handler that is configured to determine whether to perform a row hammer handling operation to refresh adjacent memory cell rows adjacent to a first row that is being intensively accessed from among the memory cell rows, resulting in a determination result; and a refresh manager configured to perform either a normal refresh operation for sequentially refreshing the memory cell rows or the row hammer handling operation, based on the determination result of the row hammer handler.


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