Wave transmission lines and networks – Coupling networks – With impedance matching
Reexamination Certificate
2007-11-30
2008-12-09
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Coupling networks
With impedance matching
C336S200000, C336S220000
Reexamination Certificate
active
07463112
ABSTRACT:
An integrated circuit (IC) system provides a broadband impedance matching function in a minimal IC area for operation with an external high-speed differential communications channel. The IC system includes a first semi-conductive substrate with a first face and an oppositely disposed second face substantially parallel to the first face. A second non-conductive substrate having substantially parallel first and second faces is arranged upon the first substrate so that the first face of the first substrate contacts the second face of the second substrate. An integrated semiconductor circuit (IC) is disposed in the first substrate and intended for differential high-speed communications operation with the external high-speed differential communications channel. First and second planar conductors are disposed in the second substrate to be electrically isolated from each other and from the first substrate, and arranged for maximum mutual magnetic additive coupling between them. The first terminal ends of the conductors present differential channel connections to the external differential communications channel that display an impedance at the circuit substantially equal to the external differential high-speed communications channel over a broad range of frequencies from DC to about 10 GHz.
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Blecker, Esq. Ira D.
International Business Machines - Corporation
Jones Stephen E
Scully , Scott, Murphy & Presser, P.C.
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