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. 25, 2022
Filed:
Mar. 03, 2021
Applicant:
Kioxia Corporation, Tokyo, JP;
Inventors:
Yuki Komatsu, Kawasaki Kanagawa, JP;
Katsuyuki Shimada, Ota Tokyo, JP;
Assignee:
KIOXIA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 16/26 (2006.01); G11C 16/34 (2006.01); G11C 16/04 (2006.01); G11C 11/56 (2006.01);
U.S. Cl.
CPC ...
G11C 16/26 (2013.01); G11C 16/0483 (2013.01); G11C 16/349 (2013.01); G11C 11/5621 (2013.01);
Abstract
A memory system includes a memory and a controller. The memory includes at least a first memory cell and a second memory cell. The controller can determine a first stress type that the first memory cell received or a second stress type that the second memory cell received based on a change amount between a first read threshold voltage to read data from the first memory cell when having received stress, and a second read threshold voltage to read data from the first memory cell when having received no stress.