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:
Dec. 06, 2016
Filed:
Dec. 12, 2014
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Sang-Hee Kim, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/06 (2006.01); G11C 29/00 (2006.01); G11C 11/406 (2006.01);
U.S. Cl.
CPC ...
G11C 29/83 (2013.01); G11C 11/406 (2013.01); G11C 29/781 (2013.01);
Abstract
A memory device includes a plurality of redundancy word lines each of which is coupled with a plurality of redundancy memory cells, and a redundancy refresh circuit suitable for sequentially refreshing first redundancy word lines that are selected as target word lines for an additional refresh operation among the plurality of the redundancy word lines.