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.

Date of Patent:
Feb. 27, 2018

Filed:

Apr. 17, 2015
Applicant:

SK Hynix Inc., Gyeonggi-do, KR;

Inventors:

Jae-Seung Lee, Gyeonggi-do, KR;

Choung-Ki Song, Gyeonggi-do, KR;

Assignee:

SK Hynix Inc., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/00 (2006.01); G01R 31/317 (2006.01); G01R 31/26 (2014.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 31/31701 (2013.01); G01R 31/2601 (2013.01); G01R 31/2607 (2013.01); G01R 31/2851 (2013.01); G01R 31/31703 (2013.01);
Abstract

A test setting circuit includes a first detection unit suitable for detecting whether a first code is sequentially inputted based on a first sequence, at each of first to Nth steps, where N is a natural number; a second detection unit suitable for sequentially receiving a second code through the first to Nth steps, and detecting whether the second code that is sequentially inputted through the first to Nth steps has a value corresponding to a second sequence; and a test setting unit suitable for setting a test mode when it is detected that the first code and the second code are inputted to satisfy the first sequence and the second sequence.


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