Principle analysis of electrostatic damage to PCB board
If there are no technical issues with the development of electronic products such as PCB boards, once a malfunction occurs, it is mostly related to static electricity. As is well known, static electricity is everywhere. For some small electronic components, as long as they are broken down by static electricity, the entire production line will also face collapse. What kind of impact does static electricity have on electronic components?
The basic physical characteristics of static electricity are the following three types of attraction or repulsion, with a potential difference from the ground, which will generate discharge current. The impact of this characteristic on electronic components
1. Electrostatic adsorption of dust reduces the insulation resistance of components, thereby shortening their lifespan.
2. The heat generated by electrostatic discharge or current can potentially damage electronic components.
3. The electromagnetic field generated by electrostatic discharge has a large amplitude and extremely wide spectrum, which can interfere with or even damage electronic devices.
4. Static discharge damage, causing damage to components: can work.
From this, it can be seen that the hazards of static electricity cannot be estimated, and enterprises should take comprehensive protective measures to prevent losses caused by static electricity hazards.