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:
May. 14, 2002
Filed:
Apr. 14, 2000
Akio Kojima, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
A probe card which comes in contact with electrodes of electric components so as to test characteristics of the electric components, includes: a printed board having a plurality of first transmission lines; a build-upboard, attached on the printed board, which includes a plurality of second transmission lines connected to a plurality of the first transmission lines, respectively; and a plurality of probe needles connected to a plurality of the second transmission lines so as to come in contact with the electrodes of the electric components. A method of manufacturing such a probe card includes: forming a first transmission line in a first substrate; superposing a second substrate on the first substrate; forming a second transmission line to the second substrate; cutting the first and second substrates in a predetermined shape; and forming a probe needle on the second substrate.