Static electricity is an objective natural phenomenon, produced in many ways, such as contact and friction. Static electricity is characterized by high voltage, low power, low current and short action time. Human body's own actions or contact, separation, friction or induction with other objects can generate thousands of volts or even tens of thousands of volts of static electricity. Component breakdown damage caused by electrostatic discharge is the most common and most serious electrostatic hazard in the electronics industry. It is divided into hard breakdown and soft breakdown. Hard breakdown is a one-time cause of dielectric breakdown, burning or permanent failure of components; soft Breakdown is caused by the deterioration of the performance of the device or the decline of the parameter index. Frictional electrification and human body static electricity are two major hazards in the electronics and microelectronics industries. Therefore, every process in the production process of the electronics industry must prevent the breakdown caused by electrostatic discharge and cause a large number of scraps.