Why do electronic components need anti-static

Electronic components are damaged by static electricity according to their types. The lowest static voltage of 100V will also cause damage to them. In recent years, as the development of electronic components tends to be integrated, the corresponding electrostatic voltage is also constantly weakened.

The electrostatic voltage induced by the human body is usually above 2-4KV, which is usually caused by the slight movement of the human body or the friction with the insulator. In other words, if the electrostatic potential in our daily life comes into contact with the IC, almost all ICs will be destroyed. This danger exists in any work environment where no electrostatic protection measures are taken. The damage of static electricity to IC is not only reflected in the manufacturing process of electronic components, but also in the process of IC assembly and remote transmission.

The circuit of integrated circuit components is reduced, the withstand voltage is reduced, and the circuit area is reduced, which makes the device's ability to withstand electrostatic shocks weakened. Static electric field (Static Electric Field) and electrostatic current (ESDcurrent) have become the lethal killer of these high-density components. At the same time, the widespread application of a large number of plastic products and other high-insulation materials has greatly increased the chance of generating static electricity. Static electricity can be generated in daily life such as walking, air movement, and transportation. People generally think that only CMOS-type wafers are sensitive to static electricity. In fact, highly integrated components and circuits are very sensitive.

The effect of static electricity on electronic components:

① The electrostatic adsorption of dust changes the impedance between the lines and affects the function and life of the product.

② The insulation or conductor of the component is destroyed by the electric field or current, making the component unable to work (complete destruction).

③ Due to the heat generated by the instant electric field or current, the component is injured, but it can still work and its life is damaged.