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:
Sep. 05, 2023

Filed:

May. 10, 2022
Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventors:

Jun Wu, Shanghai, CN;

Yu Zhang, Shanghai, CN;

Dong Pan, Boise, ID (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/401 (2006.01); G11C 11/406 (2006.01); G11C 11/4096 (2006.01); G11C 11/4091 (2006.01); G11C 11/408 (2006.01); G11C 11/402 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40611 (2013.01); G11C 11/402 (2013.01); G11C 11/4085 (2013.01); G11C 11/4091 (2013.01); G11C 11/4096 (2013.01); G11C 11/40603 (2013.01); G11C 11/40618 (2013.01);
Abstract

Apparatuses, systems, and methods for refresh modes. A memory may need to perform targeted refresh operations to refresh the 'victim' word lines which are near to frequently accessed 'aggressor' word lines. To refresh the victims at a high enough rate, it may be desirable to refresh multiple victims as part of the same refresh operation. However, certain word lines (e.g., word lines in a same section or adjacent sections of the memory) cannot be refreshed together. The memory may have a section comparator, which may check stored aggressor addresses and may provide a signal if there are not two stored addresses which can be refreshed together. Based, in part, on the signal, the memory may activate one of several different refresh modes, which may control the types of refresh operation performed responsive to a refresh signal.


Find Patent Forward Citations

Loading…