An accurate, computationally efficient crosstalk model for routing high-speed MCMs

A crosstalk model that is both accurate and easily incorporated into an MCM router has been developed. This model accounts for coupling from multiple layers out to three wires in either direction and accounts for the shielding involved with those wires. An algorithm that calculates the effect of reflections from terminals with mismatched impedances is also included as part of the model. Finally,it is shown to be impractical to use a more complex crosstalk model without including some sort of timing simulator.