Understanding of electrostatic ion fan protection for electronic components
The whole process of electronic products from production to use is threatened by electrostatic damage. From device manufacturing to plug-in soldering, complete machine assembly, packaging and transportation, and product application, they are all under the threat of static electricity. In the entire electronic product production process, every small step in every stage, electrostatic sensitive components may be affected or damaged by static electricity, but in fact the most important and easily overlooked point is the transmission and transportation of components the process of. In this process, transportation is damaged due to static electricity that is easily exposed to external electric fields (such as passing near high-voltage equipment, frequent movement of workers, rapid movement of vehicles, etc.), so special attention should be paid to the transmission and transportation process to reduce damage
Three situations can affect electronic components as follows:
1. The components absorb dust, change the impedance between the lines, and affect the function and life of the components.
2. Due to the electric field or current destroying the insulating layer and conductor of the element, the element cannot work (completely destroyed).
3. Due to the instantaneous electric field soft breakdown or overheating of the current, the component is injured, although it can still work, but its life is damaged. In the above three cases, if the component is completely damaged, it can be detected and eliminated in the production and quality test, and the impact is less. If the component is slightly damaged, it is not easy to be found in normal testing. In this case, it is often found to be damaged after many times of processing, even when it is in use. Not only is it difficult to inspect, but also the loss is difficult to predict. The damage caused by static electricity to electronic components is no less than the loss of serious fire and explosion accidents.