US Patent 7355422 Optically enhanced probe alignment

Patent 7355422 was granted and assigned to Touchdown Technologies on April, 2008 by the United States Patent and Trademark Office.

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Patent Citations Received

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US Patent 11927603 Probes that define retroreflectors, probe systems that include the probes, and methods of utilizing the probes

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Patent Inventor Names

Steven J Walker0

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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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