Patent ID: 6762494
Filing Date: 2004-07-13
Classification: H01L,H01P,H05K

Abstract:
An electronic package component comprising:a substrate formed from a material having a first dielectric constant, said substrate having an upper surface; a conductive signal trace on said upper surface; a plurality of conductive reference traces on said upper surface, said conductive signal trace and said plurality of conductive reference traces forming a coplanar waveguide transmission line; and a coating formed on said conductive signal trace, said plurality of conductive reference traces, and portions of said upper surface not covered by said conductive signal trace or said plurality of conductive reference traces, said coating formed from a material having a second dielectric constant; wherein said substrate has a lower surface opposite said upper surface; said electronic package component further comprises a conductive reference plane on said lower surface; and said conductive signal trace, said plurality of conductive reference traces, and said conductive reference plane form a reference-backed coplanar waveguide transmission line.