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:
Jan. 06, 2026
Filed:
Oct. 14, 2024
Winbond Electronics Corp., Taichung, TW;
Wen-Chiao Ho, Hsinchu County, TW;
Winbond Electronics Corp., Taichung, TW;
Abstract
A flash memory apparatus and an ERASE method thereof are provided. The ERASE method includes: applying an ERASE voltage to a target memory block and determining whether an ERASE verification passes during an ERASE operation period; determining whether the target memory block meets a degradation condition when the ERASE verification fails; determining whether the target memory block passes a soft-program verification when the degradation condition is met, and returning to the step of applying the ERASE voltage after the target memory block passes the soft-program verification; returning to the step of applying the ERASE voltage when the target memory block does not meet the degradation condition; and determining whether the target memory block passes the soft-program verification when the ERASE verification passes, and applying a soft-program voltage to the target memory block after the soft-program verification fails.