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:
Oct. 22, 2024
Filed:
Apr. 28, 2022
Applicant:
Micron Technology, Inc., Boise, ID (US);
Inventor:
Takamasa Suzuki, Tokyo, JP;
Assignee:
Micron Technology, Inc., Boise, ID (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 11/406 (2006.01); G11C 11/408 (2006.01); G11C 11/4093 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40611 (2013.01); G11C 11/40618 (2013.01); G11C 11/4085 (2013.01); G11C 11/4093 (2013.01);
Abstract
Apparatuses, systems, and methods for access based refresh operations. A memory bank may be divided into multiple sub-banks, each of which has a refresh control circuit. A word line in a first sub-bank may be refreshed responsive to a word line in a second sub-bank being accessed. Once a threshold number of refreshes have been performed in the sub-bank, further accesses to the other sub-banks may be ignored. If the threshold has not been met at the end of a refresh period, then the refresh control circuit may issue a refresh signal.