Simplified circuit modeling of ESD waveforms

Abstract

A simple method is presented to find a circuit model for a given ESD (electrostatic discharge) waveform. The proposed technique is considerably simpler than previously described methods. A measured ESD current waveform is expressed as a linear combination of a set of basis functions. Each basis function is modeled by a first-order or a second-order RLC circuit. Many ESD waveforms can be adequately modeled with three or less basis functions.<>