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. 18, 2017
Filed:
Jul. 11, 2016
Applicant:
SK Hynix Inc., Icheon-si, Gyeonggi-do, KR;
Inventors:
Min Soo Kang, Seoul, KR;
So Min Park, Yongin-si Gyeonggi-do, KR;
Assignee:
SK HYNIX INC., Icheon-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 17/00 (2006.01); G11C 11/406 (2006.01); G11C 17/16 (2006.01); G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
G11C 11/406 (2013.01); G11C 17/16 (2013.01); G11C 29/783 (2013.01);
Abstract
A refresh control device may include a fuse array configured to store fuse data. The refresh control device may include a refresh controller including cell arrays including unit cells. The refresh controller may be configured to store position information of a word line having weak cell characteristics based on fuse data. The refresh control device may include a comparator configured to receive data from the cell arrays of a selected cell and may be configured to compare the data to determine the presence of a weak word line to either perform or skip the refresh operation on the corresponding cell.