Apparatus for routing electrical signals

Details Apparatus for routing electrical signals Apparatus for routing electrical signals

2005-05-31

2005-05-31

Chambliss, Alonzo (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

With contact or lead

C257S774000, C257S775000, C257S786000

Reexamination Certificate

active

06900533

ABSTRACT:
An apparatus for routing electrical signals is a layered structure having a signal trace connected to a via and to a conductive stub trace on a first side. A reference layer is on a second side of the layered structure. Removing a portion of the conductive reference layer in an area of the stub strace increases the impedance of the stub trace without changing the impedance of the signal trace thereby improving an impedance match to another electrical element to which the apparatus is connected.

REFERENCES:
patent: 5576519 (1996-11-01), Swamy
patent: 6163957 (2000-12-01), Jiang et al.
patent: 6275358 (2001-08-01), Balakrishnan et al.
patent: 6521845 (2003-02-01), Barrow
patent: 6632343 (2003-10-01), Farnworth et al.
patent: 6740978 (2004-05-01), Huang et al.
patent: 6800944 (2004-10-01), Buschbom

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