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:
Aug. 01, 2023
Filed:
Jan. 13, 2022
Applicant:
Winbond Electronics Corp., Taichung, TW;
Inventor:
Shinya Fujioka, Yokohama, JP;
Assignee:
WINDBOND ELECTRONICS CORP., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 11/406 (2006.01); G11C 29/42 (2006.01); G11C 11/4096 (2006.01);
U.S. Cl.
CPC ...
G11C 11/40615 (2013.01); G11C 11/4096 (2013.01); G11C 11/40622 (2013.01); G11C 29/42 (2013.01);
Abstract
A semiconductor memory device capable of suppressing an increase in power consumption and avoiding data destruction due to the row hammer problem is provided. The semiconductor memory device includes a refresh control unit (first control unit) that sets a memory cell refresh interval based on information about a memory cell refresh interval included in a predetermined command input from the outside.