Fast and Accurate Calculation of System-Level ESD Noise Coupling to a Signal Trace by PEEC Model Decomposition

A fast and accurate calculation method of system-level electrostatic discharge (ESD) noise coupling based on model decomposition of the partial element equivalent circuit is proposed. The proposed method can significantly reduce the calculation time without loss of accuracy by separating small victim signal traces from large aggressor structures such as ground planes and ESD gun strap. Using the method, the ESD noise coupling at the terminations of a victim signal trace is rigorously calculated and validated with measurements and full-wave simulations in both frequency and time domains.