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:
Feb. 07, 2023
Filed:
Mar. 03, 2021
Applicant:
Kioxia Corporation, Tokyo, JP;
Inventors:
Takashi Ishida, Yokkaichi Mie, JP;
Hiroshi Kanno, Yokkaichi Mie, JP;
Assignee:
KIOXIA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/14 (2006.01); G11C 16/04 (2006.01); G11C 16/30 (2006.01); G11C 16/08 (2006.01); G11C 16/24 (2006.01);
U.S. Cl.
CPC ...
G11C 16/0483 (2013.01); G11C 16/08 (2013.01); G11C 16/14 (2013.01); G11C 16/24 (2013.01); G11C 16/30 (2013.01);
Abstract
A semiconductor storage device includes a plurality of memory cell transistors, a first wiring electrically connected to the plurality of memory cell transistors, and an erasing circuitry. The erasing circuitry is configured to erase data stored in the memory cell transistors by applying a first voltage to the first wiring, and apply the first voltage such that the first voltage rises to a first value, then falls from the first value to a second value, and is then maintained at the second value.