Active solid-state devices (e.g. – transistors – solid-state diode – Transmission line lead
Reexamination Certificate
2005-05-02
2009-02-24
Fahmy, Wael M (Department: 2814)
Active solid-state devices (e.g., transistors, solid-state diode
Transmission line lead
C257S501000, C257S503000, C257S647000, C257SE23006, C257SE23169
Reexamination Certificate
active
07495318
ABSTRACT:
The invention relates to an apparatus and method for improving AC coupling between adjacent signal traces and between plane splits and signals spanning plane splits on circuit boards. A circuit board includes adjacent conductive means and an oxide means interposed there between. The oxide means is a copper oxide, e.g., cupric or cuprous oxide. In one embodiment, the adjacent conductive means are adjacent voltage reference planes with a split interposed between the conductive means. The copper oxide fills the split. In another embodiment, the adjacent conductive means are differential signal traces. The copper oxide fills a gap between the differential signal traces. The copper oxide is a non-conductive material with an increased dielectric constant as compared to other common dielectric materials used as fillers. The increased dielectric constant increases capacitance, in turn, increasing AC coupling.
REFERENCES:
patent: 3481777 (1969-12-01), Spannhake
patent: 3615951 (1971-10-01), Franco et al.
patent: 3994430 (1976-11-01), Cusano et al.
patent: 5077595 (1991-12-01), Fukunaga
patent: 5545430 (1996-08-01), Magera et al.
patent: 6083840 (2000-07-01), Mravic et al.
patent: 6215372 (2001-04-01), Novak
patent: 6319616 (2001-11-01), Lopatin et al.
patent: 6602653 (2003-08-01), Geusic et al.
patent: 6631551 (2003-10-01), Bowles et al.
patent: 6832436 (2004-12-01), Anstrom et al.
patent: 6905979 (2005-06-01), Roth et al.
patent: 2002/0106890 (2002-08-01), Ahn et al.
Jackson James D.
Roth Weston
Searls Damion T.
Fahmy Wael M
Ingham John C
Intel Corporation
Marger & Johnson & McCollom, P.C.
LandOfFree
Apparatus and method for improving AC coupling on circuit... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for improving AC coupling on circuit..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for improving AC coupling on circuit... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4061575