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. 24, 2023
Filed:
Aug. 31, 2021
Applicant:
Winbond Electronics Corp., Taichung, TW;
Inventors:
Masaru Yano, Kanagawa, JP;
Toshiaki Takeshita, Kanagawa, JP;
Assignee:
Winbond Electronics Corp., Taichung, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/10 (2006.01); G11C 16/34 (2006.01);
U.S. Cl.
CPC ...
G11C 16/10 (2013.01); G11C 16/0483 (2013.01); G11C 16/349 (2013.01); G11C 16/3459 (2013.01);
Abstract
A semiconductor storage apparatus programming a memory cell through improved ISPP is introduced. A NAND flash memory programming method includes a step of selecting a page of a memory cell array and applying a programming pulse based on the ISPP to the selected page. The programming pulse applied by the ISPP includes a sacrificial programming pulse for which a program verification becomes unqualified due to an initial programming pulse and a last programming pulse having an increment larger than any increment of other programming pulses.