Setting up An ESD Protected Workstation
An ESD Protected workstation normally consists of an ESD mat, a wrist strap outlet or wrist strap continuous monitoring system, an ESD flooring or mat with or without an ESD ionizer.
The entire ESD mat, wrist strap outlet or wrist strap continuous monitoring system and the ESD flooring or mat is connected to the same common point to ensure an equipotential bonding.
The common point ground is then connected either to an AC equipment ground or an auxiliary ground.
The auxiliary ground is a separate supplemental grounding conductor for use other than the general AC equipment grounding.
This auxiliary supplemental grounding is bonded to the AC equipment grounding to ensure there is no potential difference between these grounding systems.
An ESD ionizer may or may not be used on the workstation. When there is an essential process insulator on the work surface (e.g. plastic connector container), an ESD ionizer is required to neutralize any static charges that are present on the container.
Other materials and equipments that may be used at the ESD protected workstation are tweezers, soldering irons, torque screwdrivers and chairs.
Soldering irons and torque screwdrivers are AC powered equipments. It is best to ensure the tip of these equipments grounded to prevent any charge transfer while in use.
Tweezers are grounded through the human touch. It is recommended to use the ESD chair at the workstation though not mandatory.
Any decision made on the choice of material and equipment that are used at the ESD workstation must take into account the ESD sensitivity level of the ESD sensitive parts being handled in that area.
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