How to do static prevention and control measures
Electrostatic discharge must reduce the amount of electrostatic charge on the surface and increase the loadable capacitance. The capacitance value is determined by the material and structure of the object, so it is more difficult to control. You can only increase the "distance" to make it difficult to generate external discharge. So the decisive factor is the amount of static charge, try to eliminate it to zero.
1. Superior grounding can bring the surface of the conductor to zero static charge, but if the static charge is discharged too fast, high current will be generated, which is not good for the product. Therefore, in the field of static prevention and control, the material is redefined from the conductor to the insulator with the surface resistance value:
-Conductor: R <105 Ohm / Sq
-Static Dissipative: 105 <R <1012 Ohm / Sq
-Insulator: R> 1012 Ohm / Sq
Use Static Dissipative to slow down the static charge but still reliably remove it from the ground wire
2. Shielding is a protection object but does not necessarily eliminate static charges.
3. Use the Simco-Ion ion generator to neutralize the static charge, which is to reduce or even eliminate the static charge on the surface of insulators or conductors that cannot be grounded.
Different electronics industry processes have different priorities for handling problems caused by electrostatic charges:
Therefore, the static prevention and control strategies and considerations adopted are not the same, which will affect the choice of static protective equipment.
In the electronics industry, the basics of general static prevention and control are:
1. Add electrostatic protective circuits to electronic components
2. Eliminate objects of insulation material on the work table, or objects of conductor material that cannot be grounded
3. Ground all groundable objects
4. For all insulators or conductors that cannot be grounded, consider using an ion generator to neutralize and control the amount of static electricity on the object
5. Proper marking, management and maintenance procedures