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:
Sep. 24, 2019
Filed:
Feb. 22, 2018
Elite Semiconductor Memory Technology Inc., Hsinchu, TW;
Chih-Hao Chen, New Taipei, TW;
ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC., Hsinchu, TW;
Abstract
An erasing method used in a flash memory comprising at least one memory block divided into a plurality of memory sectors is illustrated. Whether the memory block or the memory sector corresponding to an address has at least one under-erased transistor memory cell according to a sector enable signal is verified, wherein the sector enable signal is determined according to whether the memory block has at least one over-erased transistor memory cell. The transistor memory cells of the memory block or the memory sector will be erased according to the sector enable signal if the memory block or the memory sector corresponding to the address that has the under-erased transistor memory cell.