ESD protection system is so important
In order to prevent and reduce static damage, ensure the quality of products, and implement the prevention-oriented policy, any electronic manufacturing industry adopts anti-static measures to achieve advanced technology, economical and safe application, and static electricity is a relatively static charge to the viewer. The magnetic field effect caused by it is negligible compared to the electric field effect. Static electricity can be generated by physical processes such as contact and separation of matter, electrostatic induction, dielectric polarization, and adhesion of charged micro-materials. Static electricity in industrial manufacturing is static electricity generated and accumulated on materials, devices, human bodies, equipment and structures during production, storage and transportation.
Due to contact separation, electrostatic induction, dielectric polarization and adhesion of charged particles, the positive and negative charges of the object are out of balance or the charge distribution is uneven, and the process of charging is macroscopically, because the electrostatic charged body is toward the human body, or Electrostatic human body to earthed conductor, and human body electrostatic discharge occurs, the instantaneous impact current generated by the human body caused by the pathophysiological effect, electrostatic shock caused people to lose balance, causing people to fall from high altitude or touch other obstacles The injury or the phenomenon or event that causes the existing fire or the consequences of the explosion to further expand.
The electrostatic grounding system is a grounding method for grounding objects through metal conductors. The electrostatic conductors should be grounded directly with metal conductors. The human body and mobile equipment should be grounded indirectly using non-metallic conductive materials or antistatic materials and antistatic products. For electrostatic grounding spurs and connecting wires, a multi-strand metal wire or metal body with sufficient mechanical strength, corrosion resistance and unbreakable wire should be used.
The electrostatic grounding system is a static charge that leaks from the charged body, and provides a channel for introducing into the earth. If there is no other condition, it can only lead to the free charge on the metal body, and the electrostatic grounding is free static electricity on the electrostatic body. The charge energy plays a good role in guiding the flow, and for a part of the electrostatic non-conductor free charge, it takes a certain rest time to be introduced into the earth. The argument that there is no static hazard as long as the equipment is grounded is not comprehensive.
Avoid the large amount of static electricity generated in the electronics manufacturing industry, do a good job of electrostatic grounding of charged objects, and take measures to increase emissions. For parts that can continuously generate electricity due to friction, containers and moving devices, etc., metal or antistatic materials should be used as much as possible. The human body can be regarded as a conductor for static electricity, so as long as the human body is grounded, it can be prevented from being charged. However, since the operator usually does not stay in a certain place, the electric power continues to be charged due to walking and work; the static electricity of the human body may be the ignition source of the danger, the pollution source of the cleaning plant, and the electromagnetic interference source of the electronic device.
The static electricity in manufacturing industry is produced and accumulated in the process of production, storage and transportation. It has a great impact on safety production and product quality. From the charged area to the earth, the total resistance of the whole system is the electrostatic leakage resistance, and the resistance from the device casing to the earth is called the electrostatic grounding resistance, and the resistance of the grounding body to the earth is called the grounding body to ground resistance. Objects that need to be grounded are inadvertently grounded, and are often prone to cause static or even electrostatic hazards, so special emphasis is placed on areas that are easily overlooked.
The ESD protection system is really important. Once there is a discharge condition, all the static charge will be completely discharged through the discharge point, which will cause an accident!
There are many anti-static products, such as:
Anti-static clothes, shoes, hat, gloves, sleeves.
Anti-static plastic box, hollow board box, knife card, chair.
Anti-static mat, wrist strap, foot bowl, tweezers.
Anti-static component box, PCB turnover box, and turnover car.
Anti-static trolley, shelf, workbench, floor wax.
Anti-static shielding bag, mesh bag, moisture-proof bag.