Study on Precise Movement Control of ESD Simulator Electrode

Publisher Summary This chapter puts forward an idea about motion controlling the discharge electrode of simulator to reduce the uncertain factor and artificial interference during the process of air discharge by establishing electrostatic discharge (ESD) simulator controlling system, controlling the electrode speed approaching to current target, replacing the commonly-used way of hand holding electrode, and offering conditions to study further the air discharge characteristic of ESD simulator. ESD measurement system is a verifying unit for current waveform that satisfies IEC61000-4-2, which can both measure the waveform of time domain of ESD current and ESD electromagnetic field at the same time. The system includes primarily: Faraday cage, current target, magnetic annulet antenna, ESS-200AX ESD simulator, and digital storage oscillograph with high performance. Measurement instrument adopts the Agilent infiniium oscillograph, with 8 GS/s sampling rate and 1.5 GHz measuring bandwidth. At the same voltage, the current waveform of each discharge are consistent and air discharge can also get better repeatability, which offers better experiment method to make further study on ESD regularity and the influence on the electronic equipment of ESD.