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. 20, 2026
Filed:
Jan. 02, 2024
Winbond Electronics Corp., Taichung City, TW;
Koying Huang, San Jose, CA (US);
Winbond Electronics Corp., Taichung City, TW;
Abstract
The disclosure is directed to a method of erasing memory cells of a flash memory device including performing first erase operation to erase a block of memory cells of the flash memory device; increasing the erase bias voltage in a stepping manner until a lower edge of a distribution of threshold voltages of the block of memory cells is lower than an erase low side verify voltage; performing a first post program operation until the lower edge of the distribution of threshold voltages of the block of memory cells is higher than a post verify voltage; and performing a second erase operation to determine whether an upper edge of the distribution of threshold voltages of the block of memory cells is lower than an erase high side verify voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile