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:
Oct. 21, 2014
Filed:
Dec. 28, 2011
Applicants:
Tae Sik Yun, Icheon-si, KR;
Kee Teok Park, Icheon-si, KR;
Inventors:
Tae Sik Yun, Icheon-si, KR;
Kee Teok Park, Icheon-si, KR;
Assignee:
SK Hynix Inc., Gyeonggi-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 29/00 (2006.01); G11C 29/24 (2006.01); G11C 11/4099 (2006.01); G11C 29/12 (2006.01); G11C 11/401 (2006.01);
U.S. Cl.
CPC ...
G11C 11/4099 (2013.01); G11C 29/24 (2013.01); G11C 2029/1202 (2013.01); G11C 11/401 (2013.01);
Abstract
A semiconductor apparatus with an open bit line structure includes a memory bank including a plurality of memory cell blocks and dummy mats, in which a plurality of bit lines are formed, a bit line sense amplifier configured to be arranged between the plurality of memory cell blocks and the dummy mats, compare a voltage difference between a bit line and a complementary bit line, and amplify the difference, and a dummy word line driving unit configured to selectively activate a dummy word line of the dummy mat in response to a test mode.