Method for altering the delay properties of a transmission line using compensation tabs
AssigneeDell Products L.P.
InventorsJames B. Mobley, Robert Washburn
Life of this patent
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Abstract
An improved method and apparatus for altering the effective electrical length of trace on a circuit board. In the present invention small tabs of etch are routed perpendicular to the trace in the unused areas between adjacent traces. In an embodiment of the invention, a method of tuning the delay characteristics of a transmission line is implemented by inserting compensation tabs into the unused area between the segments of adjacent straight traces or a serpentine run. Utilizing the method and apparatus of the present invention, it is possible to achieve significantly greater electrical length for an electrical trace without introducing coupling problems or utilizing large amounts of space on a circuit board.
Claims8
A circuit board, comprising:
- a first conductor having a width (W) disposed between a first point and a second point of said circuit board;
- and
- a first plurality of compensation tabs having a generally uniform width equal to said width (W) on said conductor;
- wherein said first plurality of compensation tabs are operable to cause said conductor to have electrical conduction properties comparable to a conductor having a longer physical length than said first conductor.
A method of forming a conductor on a circuit board, comprising:
- forming first conductor having a width (W) on said circuit board between a first point and a second point, thereof and
- forming a first plurality of compensation tabs having a generally uniform width equal to said width W on said first conductor;
- wherein said first plurality of compensation tabs are operable to cause said conductor to have electrical conduction properties comparable to a conductor having a longer physical length than said first conductor.
An information handling system, comprising:
- at least one circuit board comprising information processing circuits and signal conductors, said circuit board further comprising:
- a first conductor having a width W disposed between a first point and a second point of said circuit board;
- and
- a first plurality of compensation tabs having a generally uniform width equal to said width W on said conductor;
- wherein said first plurality of compensation tabs are operable to cause said conductor to have electrical conduction properties comparable to a conductor having a longer physical length than said first conductor.
A method of forming conductors in an information handling system, said information handling system including a circuit board comprising information processing circuits and a plurality of conductors, said method comprising:
- forming first conductor having a width (W) on said circuit board between a first point and a second point, thereof and
- forming a first plurality of compensation tabs having a generally uniform width equal to said width W on said first conductor;
- wherein said first plurality of compensation tabs are operable to cause said conductor to have electrical conduction properties comparable to a conductor having a longer physical length than said first conductor.
Dependencies are inferred from the claim text.