The harm and protection of static electricity to electronic equipment
With the development of electronic technology and the increasing complexity of products, the harm of electrostatic discharge to products is becoming more and more serious. This article has Shuokai Electronics editors to introduce the harm and protection of static electricity to electronic products.
The rapid rise of high-tech industries such as electronics, IT, aerospace, etc. A large number of electronic products use integrated circuits, which promotes the increasingly miniaturized and intelligent products, but these devices are extremely sensitive to low static electricity. Although the energy of electrostatic discharge (ESD) has little effect on traditional discrete devices, the electrostatic field and static current generated by static electricity have become their fatal killers, making their functions invalid or causing hard-to-find "soft breakdown", which Electronic products leave hidden dangers, causing damage to product hardware or not working properly, which directly affects product quality, life, reliability and economy.
As a natural phenomenon, static electricity is impossible to completely disappear. People only have to take protective measures to reduce the harm of static electricity to minimize the loss of static electricity. The main control methods are as follows.
Static electricity leakage and dissipation
Through good grounding, the static electricity generated during various operations can be quickly eliminated.
Static neutralization
Use the opposite ions generated by the static eliminator to neutralize the charge of the charged body and eliminate the static electricity accumulation on the static power source.
Static shielding
A grounded shield is used to isolate the charged body from other objects, so that the electric field of the charged body will not affect other objects around it. This method of shielding is called inner field shielding. Sometimes a shielded shield is used to surround the partition to protect the partition from external electric fields.
Environmental humidification
Humidity material surface resistivity has a great influence. When the humidity is increased, the resistivity decreases, the rate of charge leakage increases, and the degree of electrification decreases.
In addition to preventing the generation of static electricity, the electrostatic protection technology of electronic products minimizes the harm of static electricity when static electricity occurs. Can use static protection products, such as ion fan, ion wind gun, anti-static bag, anti-static turnover box, anti-static turnover cart. . .