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. 15, 2008
Filed:
Jan. 19, 2006
Takao Watanabe, Kawasaki, JP;
Shigenobu Ishihara, Kawasaki, JP;
Takao Watanabe, Kawasaki, JP;
Shigenobu Ishihara, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A testing method of a semiconductor integrated circuit device includes a testing step of conducting a functional test by supplying test pattern data to a semiconductor integrated circuit device mounted upon a testing apparatus, and a post processing step conducted after the testing step for continuously driving the semiconductor integrated circuit device by supplying dummy test pattern to the semiconductor integrated circuit device, wherein the test pattern data is supplied with a first system clock speed while the dummy test pattern data is supplied with a second, slower system clock speed, the post processing step switching a system clock speed of the testing apparatus from the first system clock speed to the second system clock speed at the same time as finishing of the testing step.