The testing of electrostatic discharge is the testing procedure of electrostatic discharge resistance or ESD. ESD test happens when two electrically charged objects interact, are involved, or suffer a dielectric dislocation, resulting in a rapid electricity flow. This frequently produces or discharges visible sparks. Test engineers conduct ESD testing to ensure that their goods are immune to such discharges, whether introduced through human body currents, machines, or charge devices.
Electrostatic discharges damage sensitive electronic equipment, causing equipment failure or the disappearance of networks, and may cause gas, carbon dust, or fuel explosions.
ESD tests mimic different electrostatic effects that equipment may encounter in transport or operation. An electrostatic discharge test evaluates whether a product conforms to its ESD protection area and method.
ESD may be transmitted via air or touch. The most popular ESD test is termed the technique of the human body. The test mimics the impact on an electronic component of a human energy discharge, and this energy is a static accumulation.
ESD test methods
Two ESD test techniques are available. The first is the air technique, and the second is the contact method. The ESD air procedure includes transporting a loaded generator or unloading items like an ESD pistol to the testing equipment. Many factors may influence ESD testing, including humidity, speed, and temperature of the discharge item, and ESD occurrences in low temperature and low humidity settings are considerably more frequent.
The technique of contact The ESD test helps to remove impacts like temperature and humidity on the environment. This test technique consists of an ESD generator in close contact with the testing device, and this contact is established throughout the whole exam. While this test technique is usually consistent with environmental circumstances, ESD contact seldom happens spontaneously.
An ESD test verifies that the equipment works properly according to the test criteria and the manufacturer’s operating instructions. ESD testing usually forms part of a broader EMC compliance test strategy.
ESD test equipment
ESD guns, sometimes known as ESD simulators, are manual instruments used to evaluate the immunity of electrostatic release devices. An ESD cannon is usually programmed to enable users to test up to 16 kV or 30 kV in discharge voltage and to meet EMC requirements such as IEC/EN 61000-4-2. By various RC networks with varying rise times and pulse widths, you may obtain different standards.
Procedures for ESD testing
ESD immunity tests mimic discharges of high-frequency ESD pulses produced from ESD guns by direct contact with the test equipment or air gap discharges as specified in IEC 61000-4-2. ESD testing techniques represent the most frequent real-life occurrences of ESD and are broken down into the following models. LISUN provides the best esd guns for ESD testing.
Human body model (HBM)
ESD-883D Electrostatic Discharge (ESD) IC Tester
The Human Body Model is the most frequent ESD test for electronically built components for human usage. An HBM test mimics situations when a charge builds upon the human body and leads to electrostatic discharges, which occur when people collect residual charges from worldly actions like dragging their feet to the floor.
Machine model (MM)
The machine model is done on electronic components for produced products. MM ESD testing includes imitating a charge that produces ESD in metal equipment or tools when accumulated. For example, an industrial-automation machine may contain an electrical charge, and when a component is contacted, it can cause electrostatic discharge.
Device Model Charged (CDM)
The Charged-Device Model is also suitable for electrical device components. The CDM simulates situations when a load builds on the DUT, producing ESD, typically in settings where machines are constantly on.
