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. 07, 2021

Filed:

Oct. 01, 2020
Applicant:

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

Inventors:

Atishay, Bangalore, IN;

Anirudh B K, Bangalore, IN;

Rajeev Verma, Bangalore, IN;

Vishnu Charan Thummala, Bangalore, IN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/406 (2006.01); G11C 29/42 (2006.01); G11C 11/4072 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40618 (2013.01); G11C 11/4072 (2013.01); G11C 11/40615 (2013.01); G11C 11/40622 (2013.01); G11C 11/40626 (2013.01); G11C 29/42 (2013.01);
Abstract

Methods and systems for controlling refresh operations of a memory device. A method disclosed herein includes receiving, by a refresh controller of the memory device, a refresh command from a host for performing the refresh operation on a plurality of memory rows. The method further includes selecting, by the refresh controller, at least one memory row from the plurality of memory rows for the refresh operation using a refresh-row selection circuitry. The at least one memory row is selected by performing digital reading or analog reading of at least one row condition cell (RCC) and at least one supplemental cell that are connected to each memory row of the memory rows. The method further includes performing, by the refresh controller, the refresh operation on the selected at least one memory row.


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