Patent ID: 8327313

Claim:
A re-routing method for a circuit diagram, the re-routing method comprising: obtaining at least one pair of signal lines from a routed circuit diagram, wherein the routed circuit diagram is adapted to be laid out on a substrate of a printed circuit board (PCB), the substrate comprising a plurality of warp wires and a plurality of weft wires, the at least one pair of signal lines comprising two parallel signal lines, the pair of the signal lines comprising a plurality of pairs of line segments; determining whether at least one pair of parallel line segments exists in the pairs of line segments parallel to the warp wires or the weft wires; replacing the at least one pair of parallel line segments on the routed circuit diagram with a plurality of pairs of 10-degree lines using a computer when there exists at least one pair of parallel line segments, wherein respective angles included between the pairs of 10-degree lines and the warp wires or the weft wires are 10 degrees; and laying out the routed circuit diagram after replacement on the substrate of the PCB.