Apertures for signal shaping using ground and signal PTH...

Details Apertures for signal shaping using ground and signal PTH... Apertures for signal shaping using ground and signal PTH...

2007-11-06

2007-11-06

Norris, Jeremy C. (Department: 2841)

Electricity: conductors and insulators

Conduits, cables or conductors

Preformed panel circuit arrangement

C029S650000, C029S703000, C029S847000, C716S030000

Reexamination Certificate

active

11121821

ABSTRACT:
A method and apparatus for shaping signals transmitted via plated through holes (PTHs) utilizes standard back-drilling techniques to reduce the resonant stub lengths of ground PTHs in the vicinity of a back-drilled signal PTH.

REFERENCES:
patent: 6233820 (2001-05-01), Hummelink
patent: 6392160 (2002-05-01), Andry et al.
patent: 2003/0042991 (2003-03-01), Cotant et al.
patent: 2006/0023439 (2006-02-01), Fraley et al.
Tom Cohen, Practical Guidelines for the Implementation of Back Drilling Plated Through Hole Vias in Multi-gigabit Board Applications, Web ProForum Tutorials, copyright 2004 International Engineering Consortium, on the Internet: <http://www.iec.org>.

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