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:
Apr. 10, 2018
Filed:
Mar. 15, 2017
Applicant:
Toshiba Memory Corporation, Minato-ku, JP;
Inventors:
Kenichi Abe, Kawasaki, JP;
Masanobu Shirakawa, Chigasaki, JP;
Mizuho Yoshida, Yokohama, JP;
Takuya Futatsuyama, Yokohama, JP;
Assignee:
TOSHIBA MEMORY CORPORATION, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/04 (2006.01); G11C 16/34 (2006.01); G11C 11/56 (2006.01); G11C 16/08 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3459 (2013.01); G11C 11/5628 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01);
Abstract
A semiconductor memory device includes first to third pages, first to the third word lines, and a row decoder. In data writing, data is written into the first page before data is written into the second page. The row decoder is configured to apply first to third verify voltages to gates of first to third memory cells in a program verify operation.