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:
Apr. 01, 2014
Filed:
Jul. 14, 2010
Heat Bit Park, Ichon-shi, KR;
Tae Sik Yun, Ichon-shi, KR;
Heat Bit Park, Ichon-shi, KR;
Tae Sik Yun, Ichon-shi, KR;
SK Hynix Inc., Gyeonggi-do, KR;
Abstract
A semiconductor memory apparatus having stacked first and second chips includes a first chip test signal generation unit disposed in the first chip and configured to generate a first chip test signal in response to a first chip compression data determination signal in a test mode, a second chip test signal generation unit disposed in the second chip and configured to generate a second chip test signal in response to a second chip compression data determination signal in the test mode, and a final data determination unit configured to generate a final test signal in response to the first and second chip test signals in the test mode.