De-coupled printed circuits
AssigneeInternational Business Machines Corporation
InventorsMario E. Ecker, Leonard T. Olson
Life of this patent
Estimating the term…
Abstract
Arrangement for reducing cross talk between electrical circuit conductors wherein the conductors lie within individual parallel channels within the same plane or different parallel planes within the induced voltage or cross talk region of an energized and a quiet conductor and either converge or diverge with respect to each other. The amount of relative convergence or divergence, preferably mor than six degrees and less than 15 degrees, is that required to attenuate the magnitude of any signal induced by the activated conductor in a neighboring or quiet conductor to maintain an acceptable and desired signal-to-noise ratio.
Claims15
A circuit panel comprising:
- at least one layer of electrically insulative material having a plurality of parallel channels designated thereon;
- and
- a plurality of conductors on a surface of said layer lying within a region of voltage fluctuations in said conductors induced in one or more of the conductors in said conductor plurality by changes in current flow in one or more of the other conductors in said conductor plurality wherein the longitudinal axis of each of the conductors continually either converges or diverges with respect to the axes of others in said conductor plurality while each said conductor lies within one of said plurality of parallel channels on said surface and within said region of induced voltage fluctuations.
The method of constructing a circuit panel having diminished coupled noise between active and quiet conductors comprising the steps of:
- providing an electrically insulative substrate having a plurality of parallel contiguous channels thereon for circuit conductors;
- and
- forming within each said channel one electrical conductor whose longitudinal axis continually either converges or diverges with respect to any other conductor in any other channel within the coupled noise region of said one conductor when operating as an energized conductor.
Dependencies are inferred from the claim text.