Electrostatic protection in the production plant of electronic components
In today's era where electronic products are everywhere, electronic products have brought us a more convenient and smarter life, which has become an indispensable thing in people's production and life. Therefore, it is an important task to ensure the safety, effectiveness, and advancement of the production of electronic products, so the electrostatic protection of electronic components is very important.
1. Characteristics of static electricity 1. Under current technical conditions, static electricity cannot be effectively controlled. There is no suitable material to isolate it, and the voltage and current generated by it are uncertain. Most of the time, the human body will not feel the discharge of static electricity. 2. It takes a period of accumulation to generate static electricity (the length of time will have a greater impact on the environment). 3. Normally there is not much harm, but under certain conditions it can harm concretely, and even endanger human life.
2. Anti-static measures 1. Establish an anti-static production area. The establishment of an anti-static production area is divided and separated according to the specifications, technical requirements and manufacturing processes of the assembly of electronic components, and then classified according to their different electrostatic sensitivity levels, and according to the classification As a result, they are arranged in different levels of anti-static workshops for production and assembly to fundamentally prevent static electricity from damaging electronic engineering.
2. Establish a good anti-static environment. In the daily working environment, there will be a lot of powder, dust and other small objects. When a static point is generated, these powder and dust will be adsorbed. Therefore, the cleanliness and tidiness of the working environment are very demanding in electronic engineering. When using paint, you should first choose a special paint that can play an anti-static effect and has good anti-static properties. The walls and ceilings of the room should use anti-static firewall panels, or spray epoxy paint on the walls and ceilings to ensure the anti-static ability of the working environment and improve the fire safety factor of the working environment. Anti-static treatment should also be carried out at the ventilation ducts and vents. The indispensable part of the establishment of an anti-static environment is the static protection of the floor. Usually use anti-static porcelain floor. This type of floor has strong antistatic ability. Its structure is that the surface of the floor is covered with a ceramic layer. At the same time, a certain amount of inorganic high-temperature conductive materials are added to the ceramic layer, making this floor not only very good static electricity. It has the advantages of long service life, strong abrasion resistance, strong fire resistance and strong pressure resistance. Therefore, this type of floor is widely used in ground protection projects for electrostatic protection. In the process of building an anti-static environment, there is another item—static protection tools and equipment are also indispensable. For example, anti-static work shoes and anti-static clothing must be worn by personnel in the electrostatic workshop to achieve the construction process. The effect of static electricity generated is minimized. Among them, the insulator is charged and cannot be grounded to eliminate its electrostatic effect, so it is necessary to use an ion fan to eliminate the insulator. Normally, the training and learning of electrostatic protection awareness of personnel should also be strengthened, and safety protection knowledge should be regularly checked to ensure that all personnel on duty understand electrostatic protection knowledge and methods.