Why is humidity control important for electronics and microprocessor manufacturing?

Electrostatic discharges typically occur when air humidity drops below a certain critical value. Controlling air humidity will successfully minimize the risk of ESD, protecting both equipment and personnel and ultimately increasing productivity and preserving a consistent quality of the output.

The normal range for humidity in an electronics manufacturing environment is between 30% RH and 70% RH.  Some facilities try to maintain a constant moderate RH (c. 50%), while others may want a lower % RH due to humidity-sensitive parts.

Optimal control of relative humidity is best achieved by installing a humidifier, which not only ensures that static charges are kept at a minimum, but adiabatic humidifiers also have the additional benefit of free cooling to reduce excess heat generated locally by production processes.

In most cases, electronics producers must be able to document that their production takes place under strict control of indoor climate – and this is where humidity control plays a key role.

Benefits include:

  • Compliance with regulations concerning production environment
  • Reduce risk of ESD
  • Protects personnel and products
  • ‘Free’ cooling from adiabatic process
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