As signal speeds get faster and operating currents lower, the integrity of the signal becomes an increasingly necessary consideration during PCB Design. In particular, the transit time of signals often needs to be synchronized by matching the copper length of the traces on the PCB.
Aside from more general requirements such as layer stackup and design rules, Proteus support for high speed design starts with serpentine routing. This allows the user to automatically length match routes to each other or to target distances. This technology is then coupled with advanced design rules and a dedicated routing mode to support differential pairs. When needed, differential pairs are automatically phase matched (skew reduction) to keep the signals equal and opposite for as much of the transit time as possible.
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