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:
Jun. 21, 2016
Filed:
Jul. 07, 2015
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventor:
Ki-Chang Kwean, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 29/00 (2006.01);
U.S. Cl.
CPC ...
G11C 29/76 (2013.01);
Abstract
A memory device including a first cell block including a plurality of word lines and first to K(K is a natural number) redundancy word lines, a second cell block including a plurality of word lines and (K+1)to N(N is a natural number greater than K) redundancy word lines, and a control unit suitable for performing control so that the first to Nredundancy word lines replace the word lines of the first or second cell block, refreshing the word lines of the first and the second cell blocks simultaneously in a first section, and sequentially refreshing the first to Nredundancy word lines in a second section.