Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Reexamination Certificate
2007-07-03
2007-07-03
Reichard, Dean A. (Department: 2841)
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
C361S795000
Reexamination Certificate
active
10792141
ABSTRACT:
The embodiments of the present invention relate to an improved printed circuit board having additional rows of ground vias to reduce crosstalk in the board. A printed circuit board according to one embodiment of the present invention comprises a first row of vias and a second row of vias, each having a plurality of signal vias. The circuit board also comprises a plurality of rows of vias being coupled to a ground plane between the first row of signal vias and the second row of signal vias. According to one embodiment, the plurality of rows of vias being coupled to a ground plane comprise rows of vias having different sizes. Some of the vias are designed to receive a component, while others are generally smaller and designed to provide a return current path for the signal vias.
REFERENCES:
patent: 6608762 (2003-08-01), Patriche
patent: 6639154 (2003-10-01), Cartier et al.
patent: 6822876 (2004-11-01), Goergen
patent: 2004/0264153 (2004-12-01), Payne et al.
King John J.
Reichard Dean A.
Semenenko Yuriy
Xilinx , Inc.
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