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. 14, 2017

Filed:

Dec. 04, 2015
Applicant:

SK Hynix Inc., Icheon-si, Gyeonggi-do, KR;

Inventor:

Hong Ki Moon, Seoul, KR;

Assignee:

SK HYNIX INC., Icheon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 17/18 (2006.01); G11C 17/16 (2006.01); G11C 29/02 (2006.01); G11C 7/10 (2006.01); G11C 29/00 (2006.01); G11C 7/22 (2006.01);
U.S. Cl.
CPC ...
G11C 17/18 (2013.01); G11C 7/1018 (2013.01); G11C 7/22 (2013.01); G11C 17/16 (2013.01); G11C 29/027 (2013.01); G11C 29/787 (2013.01);
Abstract

A fuse test mode detection device is disclosed, which relates to a technology for improving detection efficiency of a fuse test mode. The fuse test mode detection device includes: a fuse unit configured to scan a plurality of fuses in a boot-up operation, and output fuse data; a counter configured to count the fuse data in response to a clock signal; a decoding unit configured to output a decoding signal for controlling a fuse test mode in response to an output signal of the counter; an encoder configured to encode the output signal of the decoding unit, and output a code signal; and a comparator configured to compare the fuse data with the code signal, and output a comparison signal.


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