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:
Jun. 02, 2026
Filed:
Jun. 14, 2023
Winbond Electronics Corp., Taichung City, TW;
Koying Huang, San Jose, CA (US);
Winbond Electronics Corp., Taichung City, TW;
Abstract
In an aspect, the disclosure is directed to a cell erase method which includes not limited to: initiating an erase operation of a block of memory cells by applying an erase condition to the block of memory cells; performing a first erase verification procedure for at least a portion of the block of memory cells in comparison with a first erase verify voltage; adjusting the first erase verify voltage in response the portion of the block of memory cells having passed the first erase verification procedure; performing a second erase verification procedure for the block of memory cells in comparison with the adjusted erase verify voltage; performing a post program verification procedure for the block of memory cells in comparison with a post program verify voltage to detect leakage current of the block of memory cells; determining whether the adjusted erase verify voltage reaches a final erase verify voltage.