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:
Mar. 02, 2021
Filed:
Oct. 24, 2019
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Min Ho Her, Cheongju-si, KR;
Dong Hyun Kim, Icheon-si, KR;
Seung Il Kim, Cheongju-si, KR;
Youn Ho Jung, Cheongju-si, KR;
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/34 (2006.01); G11C 16/16 (2006.01); G11C 16/26 (2006.01); G11C 16/08 (2006.01); G11C 16/24 (2006.01);
U.S. Cl.
CPC ...
G11C 16/3404 (2013.01); G11C 16/08 (2013.01); G11C 16/16 (2013.01); G11C 16/24 (2013.01); G11C 16/26 (2013.01);
Abstract
A method of operating a controller that controls an operation of a semiconductor memory device includes controlling the semiconductor memory device to perform an operation for a selected memory block, determining whether or not the operation is successful, and compensating for a change in a threshold voltage distribution of select transistors by changing an operation voltage applied to the select transistors included in the selected memory block, based on whether or not the operation is successful.