ESD is representative of English ElectroStatic Discharge or "electrostatic discharge" means. ESD is to study the generation of static electricity and attenuation model electrostatic discharge, electrostatic discharge effect as the current heat (spark) effects (such as fire and explosion caused by static electricity) and and electromagnetic effects (electromagnetic interference) since the middle of this century such as the formation of Subject. In recent years, with the rapid development of science and technology, widely used in microelectronics technology and electromagnetic environments become more complex, the effect of electrostatic discharge electromagnetic fields such as electromagnetic interference (EMI) and electromagnetic compatibility (EMC) issues more seriously.