Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Steven J Walker0
Date of Patent
April 8, 2008
Patent Application Number
11369343
Date Filed
March 6, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
A novel probe card that comprises a set of fiducials and a method for using the same are disclosed. The set of fiducials comprises a first fiducial and a second fiducial fixed relative to the probe card substrate. Comparing the relative positions of the fiducials determines whether the probes are in proper alignment. This can be performed by the unaided eye or by using a low powered microscope. This novel probe card may also be used with computer vision alignment methods, thus enhancing the speed and accuracy of the computer vision method.
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