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:
Sep. 21, 2004
Filed:
Nov. 15, 2001
Applicant:
Inventors:
Edward W. Nelson, Tigard, OR (US);
Travis S. Ellis, Scappoose, OR (US);
Paul D. Wohlfarth, Vernonia, OR (US);
Assignee:
Credence Systems Corporation, Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 3/102 ;
U.S. Cl.
CPC ...
G01R 3/102 ;
Abstract
A pin card for mounting in a test head of a semiconducter integrated circuit tester to implement test channels of the tester includes contact pins connected to terminals of respective test channels. Each contact pin has a free end for engaging a load board. A conductive switch element is displaceable between a first position, in which the switch element is electrically isolated from one or more of the contact pins, and a second position, in which the switch element is in electrically conductive contact with one or more of the contact pins.