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:
Nov. 22, 2016
Filed:
Feb. 04, 2016
Applicant:
SK Hynix Inc., Icheon-si Gyeonggi-do, KR;
Inventor:
Kwan Weon Kim, Icheon-si, KR;
Assignee:
SK HYNIX INC., Icheon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 29/12 (2006.01); G11C 7/10 (2006.01); G11C 7/22 (2006.01);
U.S. Cl.
CPC ...
G11C 29/12 (2013.01); G11C 7/10 (2013.01); G11C 7/22 (2013.01);
Abstract
A semiconductor memory includes a memory block configured to perform an operation according to a first test pattern or a second test pattern, a switching circuit configured to provide the first test pattern or the second test pattern to the memory block according to a first test mode signal and a second test mode signal, and a test pattern setup circuit configured to store a test pattern source signal in a feedback loop varied according to a third test mode signal and output the stored test pattern source signal as the first test pattern.