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. 24, 2023
Filed:
Jun. 30, 2021
Applicant:
Kioxia Corporation, Tokyo, JP;
Inventors:
Kosuke Yanagidaira, Fujisawa Kanagawa, JP;
Hiroshi Tsubouchi, Yokohama Kanagawa, JP;
Assignee:
KIOXIA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/26 (2006.01); G11C 16/32 (2006.01); G11C 16/04 (2006.01); H01L 27/11582 (2017.01); H01L 27/11565 (2017.01); G11C 16/08 (2006.01);
U.S. Cl.
CPC ...
G11C 16/26 (2013.01); G11C 16/0483 (2013.01); G11C 16/08 (2013.01); G11C 16/32 (2013.01); H01L 27/11565 (2013.01); H01L 27/11582 (2013.01);
Abstract
A semiconductor memory device includes a controller which executes a read operation. In the read operation, the controller applies first and second read voltages to a word line, reads data at each of first and second times, applies the first voltage to a source line at each of the first and second times, applies a second voltage to the source line during the application of the first read voltage to the word line and before the first time, and applies a third voltage to the source line during the application of the second read voltage to the word line and before the second time.