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. 08, 2008
Filed:
Mar. 06, 2006
Applicant:
Steven J Walker, Monrovia, CA (US);
Inventor:
Steven J Walker, Monrovia, CA (US);
Assignee:
Touchdown Technologies, Inc., Baldwin Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01);
U.S. Cl.
CPC ...
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.