Increase humidity in the electronic workshop can prevent electrostatic damage
Many workshops now have certain requirements for humidity, and the electronic workshop is no exception. Humidity plays a very important role in the production of electronic workshops, and almost every process has an inseparable relationship with them. Electronic products have strict requirements on the humidity of the production environment. Generally, the temperature of the electronics workshop should be controlled at about 22℃, and the relative humidity should be controlled between 40-60%RH. Especially in winter, due to the low moisture content of indoor air, the electronic workshop needs a proper humidifier to ensure the qualified rate of the product.
As we all know, the electronics workshops are generally equipped with high-precision instruments. The layperson will definitely think that the use of humidifiers in the electronics workshop will not damage these instruments? In fact, the insiders know that the humidifier is mainly used to humidify the air. Since the water sprayed by the humidifier is in an atomized state, it is easily absorbed by the air and will not produce water droplets or stagnant water, so naturally it will not What is the impact on the instruments in the electronics workshop? Secondly, the main purpose of using humidifiers in electronic workshops is to prevent static electricity. Because of static electricity, some electronic components cannot work effectively and weaken the work effect. If the air humidity is too low, it is easy to cause static electricity problems. In addition, the use of humidifiers is also for the purpose of reducing dust in electronic workshops. Dust is also very harmful to electronic products. If the air is too dry, dust will easily fly around. In addition, static electricity will also attract a large amount of dust, causing electronics Damage to components.
The harm of static electricity to electronic products
1. Electrostatic adsorption of dust reduces the insulation resistance of components (shortens the life).
2. Electrostatic discharge (ESD) damage, causing electronic components to fail to work. Some electronic components can also withstand the electrostatic voltage of electrostatic destruction, but the electrostatic destruction voltage of most devices is hundreds to thousands of volts, and the static electricity generated by human activities in a dry environment can reach thousands of volts to tens of thousands Volt. This kind of voltage is too large for the electronic components to withstand, resulting in damage to the electronic components.
3. The electromagnetic field generated by electrostatic discharge has a large amplitude (up to several hundred volts/meter) and a very wide frequency spectrum (from tens of megabytes to several thousand megabytes), which can cause interference or even damage to electronic products (electromagnetic interference).