Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – With contact or lead
Reexamination Certificate
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
Agilent Technologie,s Inc.
Bouscaren June L.
Chambliss Alonzo
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