Analyze the impact of static electricity on the electronics industry
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A. The influence of static electricity on electronic components 1. Electrostatic adsorption of dust, change the impedance between lines, affect the product's function and life.
2. The element cannot be operated (completely destroyed) due to the electric field or current destroying the insulation or conductor of the element.
3, due to the moment of the electric field or current heat, components are injured, still able to work, life is damaged.
4, the characteristics of electrostatic damage:
a. The concealed human body cannot directly sense static electricity unless electrostatic discharge occurs, but static discharge occurs, and the human body does not necessarily have the feeling of electric shock. This is because the human body senses an electrostatic discharge voltage of 2-3 kV.
b. Latent property Some electronic components do not show a significant drop in performance after being electrostatically damaged. However, accumulating discharges several times can cause internal damage to the device and cause hidden trouble, and increase the sensitivity of the device to static electricity. There are no cures for the problems that have already arisen.
c, random electronic components under what circumstances will suffer from electrostatic damage? It can be said that all the processes from the production of a component until it is damaged are subject to static electricity, and the generation of these static electricity is also random. Since the generation and discharge of static electricity occur instantaneously and are difficult to predict and protect.
c. Complex electrostatic discharge damage is divided into plates. Due to the fine and tiny structural features of electronic products, it is time-consuming, costly, and costly. The more complex technologies require the use of precision instruments such as scanning electron microscopes, even though some electrostatic damage is also a problem. It is difficult to distinguish from the damage caused by other causes, so that people mistakenly regard the failure of electrostatic damage as other failures. This is a failure to fully recognize electrostatic discharge damage before it is often attributed to early failure or unclear failure, thus unconsciously concealing it. The real cause of the failure.
d. Serious ESD problems seemingly only affect the users of finished products, but in fact also affect manufacturers at all levels, such as: warranty fees, maintenance and company reputation, etc.