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:
May. 28, 2019
Filed:
Aug. 11, 2017
Applicant:
SK Hynix Inc., Icheon-si, Gyeonggi-do, KR;
Inventor:
Ja Beom Koo, Icheon-si, KR;
Assignee:
SK hynix Inc., Icheon-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3193 (2006.01); G11C 29/02 (2006.01); G11C 5/04 (2006.01); G11C 29/38 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3193 (2013.01); G01R 31/31935 (2013.01); G11C 5/04 (2013.01); G11C 29/025 (2013.01); G11C 29/38 (2013.01);
Abstract
A memory device may be provided. The memory device may include a test data output circuit configured to compare lower data output from a lower data storage region with upper data output from an upper data storage region and make a decision. The memory device may include a data transmitter configured to output the lower data by inverting or noninverting the lower data according to the decision. The memory device may include a test control circuit generates a test control signal according to a test read signal and an address signal.