The Coupling of Electrostatic Discharge to Electronic Equipment

Abstract

Electrostatic Discharge (ESD) is a serious threat to electronic equipment. It can couple into equipment and disturb or even damage internal circuit. In the paper, the coupling of ESD to electronic equipment is presented. It includes the coupling of ESD to EUT and that to PCB. In the coupling of ESD to EUT, there gives five conduction interferences and shows that it’s important to obstruct ESD current and lead its route bypassing sensitive circuit. There also presents the coupling of ESD radiated field to EUT and PCB. It shows unintentional antenna structures and parasitic parameter circuits play important role in ESD interference. They need to be removed and restrained.