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. 23, 2022
Filed:
May. 18, 2021
Winbond Electronics Corp., Taichung, TW;
Makoto Senoo, Yokohama, JP;
WINDBOND ELECTRONICS CORP., Taichung, TW;
Abstract
A flash memory including a NAND memory cell array, a current detection unit, an offset voltage determining unit, and a reading voltage generating unit. The NAND memory cell array forms at least one monitoring NAND string in each block, which are used to monitor the cycle frequency of programing and erasing. The current detection unit detects the current that flows through the monitoring NAND string. The offset voltage determining unit determines the first offset voltage and the second offset voltage that are respectively added to the read-pass voltage and the reading voltage, according to the current detected. The reading voltage generating unit generates the read-pass voltage with the first offset voltage added. The reading voltage generating unit also generates the reading voltage with the second offset voltage added.