Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
November 28, 2006
Patent Application Number
10468277
Date Filed
July 2, 2002
Patent Primary Examiner
Patent abstract
An apparatus and method for coupling a test head and probe card in an IC testing system incorporating patterned divider elements (24) disposed between rows of signal conductors (22) to provide matching characteristic impedance values along each row of signal conductors. The divider elements have a patterned conductive layer formed thereon that is electrically connected to ground, and a method for determining a useful pattern is provided. Test dividers (24) fabricated with openings of various size and shape are used to construct transmission lines. The impedance of these lines is measured, and the results are used to interpolate an appropriate opening size and shape to achieve a desired transmission line impedance.
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