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:
Feb. 02, 2016
Filed:
May. 16, 2014
Applicant:
SK Hynix Inc., Gyeonggi-do, KR;
Inventors:
Hyun-Sung Lee, Gyeonggi-do, KR;
Kee-Teok Park, Gyeonggi-do, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 29/00 (2006.01); G11C 29/50 (2006.01); G11C 29/12 (2006.01); G11C 7/12 (2006.01); G11C 29/02 (2006.01); G11C 11/4091 (2006.01); G11C 7/14 (2006.01); G11C 29/08 (2006.01); G11C 11/4099 (2006.01); G11C 11/4094 (2006.01); G11C 29/06 (2006.01); G11C 29/24 (2006.01);
U.S. Cl.
CPC ...
G11C 29/006 (2013.01); G11C 7/12 (2013.01); G11C 7/14 (2013.01); G11C 11/4091 (2013.01); G11C 11/4094 (2013.01); G11C 11/4099 (2013.01); G11C 29/02 (2013.01); G11C 29/06 (2013.01); G11C 29/08 (2013.01); G11C 29/12 (2013.01); G11C 29/24 (2013.01); G11C 29/50 (2013.01); G11C 2029/1202 (2013.01); G11C 2029/1204 (2013.01);
Abstract
A semiconductor memory device comprising a memory cell array with a plurality of word lines, first and second dummy word lines, and a dummy word line driver suitable for separately driving the first and second dummy word lines for a wafer burn-in test where the word lines are driven by group.