Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Reexamination Certificate
2008-04-11
2011-10-11
Norris, Jeremy C (Department: 2835)
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
C361S792000
Reexamination Certificate
active
08035038
ABSTRACT:
A method of fabricating a printed circuit board having a coaxial via is disclosed. The method includes assembling a plurality of layers configured in a stack so that the plurality of layers has a top signal layer and a bottom signal layer; forming a hollow via through the plurality of layers to connect GND layers in the printed circuit board, forming or inserting into the hollow via a conductor coated with non-conductive material, covering the top layer and bottom layer with dielectric and patterned signal layers, covering the top layer and bottom layer with a masking agent, plating the top layer and bottom layer with a conductive material that connects signal traces within via, and removing the masking agent from the top layer and bottom layer.
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Camerlo Sergio
Cheng Wheling
Karam Roger
Cisco Technology Inc.
Norris Jeremy C
Patterson & Sheridan LLP
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