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. 16, 2022
Filed:
Apr. 12, 2021
Winbond Electronics Corp., Taichung, TW;
Yutaka Ito, Kanagawa, JP;
Winbond Electronics Corp., Taichung, TW;
Abstract
A semiconductor memory apparatus is provided. The semiconductor memory apparatus includes a temperature sensor, a plurality of memory blocks and a refresh controller. The temperature sensor detects a device temperature inside the semiconductor memory apparatus to generate a corresponding temperature signal. Each of the memory blocks includes a memory cell array having a plurality of volatile memory cells, and a plurality of word lines. The refresh controller monitors accesses to the word lines, detects accesses that occur a predetermined number of times within a predetermined period, and assigns a refresh operation corresponding to the refresh operation command to a first refresh operation or a second refresh operation.