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:
Jul. 08, 2003
Filed:
Jun. 08, 2001
Advantest Corporation, Tokyo, JP;
Abstract
The invention allows for testing by high velocity signals of high density LSIs prior to being packaged having an electrode spacing on the odder of 150 &mgr;m, for example. Coaxial transmission lines for termination formed through a terminal support are arranged in a two-dimensional array. Connected to one ends of the transmission lines are one ends of contact pins such as conductive whiskers while the other ends of the transmission lines are connected to a transmission line block of a three-dimensionally upwardly gradually broadening configuration through a connection plate similar in construction to the terminal support The transmission line block holds high frequency transmission lines for relay connected at one ends to the other ends of the coaxial transmission lines and having spacings between the adjacent lines broadened at the other upper ends. The widely spaced upper ends of the transmission lines are connected to a performance board (not shown). The contact pins are about 0.3 to 0.5 mm in length and the characteristics impedance is maintained uniform over all the transmission lines The terminal support is replaceable.