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:
Jul. 12, 2016
Filed:
Jan. 27, 2014
Winbond Electronics Corp., Taichung, TW;
Hung-Hsueh Lin, Hsinchu, TW;
WINBOND ELECTRONICS CORP., Taichung, TW;
Abstract
An erase method for a flash memory is provided. First memory cells of the flash memory are pre-programmed. The first memory cells are disposed in a memory array formed by a plurality of row and column lines. The programmed first memory cells are erased. The erased first memory cells are post-programmed, to repair the over-erased first memory cells. Second memory cells are programmed after the erased first memory cells are post-programmed. The second memory cells are disposed in a first specific column line of the memory array. The first specific column line is arranged after a last column line corresponding to a last valid column address. Third memory cells disposed in a second specific column line of the memory array. The second specific column line is arranged after the last column line and is adjacent to the first specific column line.