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:
Jul. 10, 2018

Filed:

Aug. 02, 2017
Applicant:

Nanya Technology Corporation, New Taipei, TW;

Inventors:

Chung-Hsun Lee, New Taipei, TW;

Hsien-Wen Liu, Luzhu Township, Taoyuan County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/24 (2006.01); G06F 12/02 (2006.01); G06F 12/06 (2006.01); G11C 11/408 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0207 (2013.01); G06F 12/0607 (2013.01); G11C 11/408 (2013.01);
Abstract

The present disclosure provides a method. The method includes copying a data stored in memory cells associated with a normal word line subject to a row hammer effect into memory cells associated with a hot word line before a condition is satisfied, wherein the condition includes an access frequency of the normal word line reaching a threshold frequency; accessing, based on a logical address, the normal word line before the condition is satisfied; accessing, based on the logical address, the hot word line associated with the copied data only if the condition is satisfied; and accessing the data no longer from the normal word line only if the condition is satisfied.


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