ESD Glossary

Here you’ll find the most important information about the topic of ESD, EPA and electrostatic charge.

"Charge-reducing quality" can be, for example, a special type of plastic.

Surface resistance of materials which are between 105 and 1012 ohms.

Stands for electrostatic protected area and is a work area in which you can handle assemblies that are sensitive to electrostatic influence without damaging them.

Dissipation of electrical currents into the ground.

Grounding point (EBP):
Central point (e.g. on a worktop) which is connected to the building's grounding.

Stands for electrostatic discharge

Stands for electrostatic discharge sensitive devices and refers to electrostatically sensitive assemblies, such as ICs

Stands for integrated circuit and refers to integrated circuits and microchips, e.g. microprocessors

Removing charged particles (e.g. electrons) from a substance such as air. Ionisers can neutralise electrostatic charges by distributing ionised air.

Materials that have a high surface resistance of at least 1012 ohms. Static charges remain for a long time in one area of this material without flowing away (plastics, glass, air).

(El.) conductivity:
Property of a material, to conduct electrical current, e.g. metals

IEC 61340-5-1 Protection of electronic devices from electrostatic phenomena – General requirements
IEC 61340-5-2 Protection of electronic devices from electrostatic phenomena – User guide
IEC 61340-4-1 Electrical resistance of floor coverings and installed floors
ANSI/ESD S20.20.-1999 Protection of Electrical and Electronic Parts, Assemblies and Equipment, USA (available free of charge on the internet)
ANSI/ESD S541-2003 Packaging Materials for ESD Sensitive Items, USA

Unit [A] ampere, symbol: I, flow of (usually negative) charge carriers.

Unit [V] volt, symbol: U, keeps the electrical current in a closed loop and therefore the cause of the current flow.

Unit [Ω] ohm, symbol: R, indicates the voltage required to allow a specific current flow through an electrical conductor.

Surface resistance:
Resistance between two points on a surface which can be measured using a megger and two electrodes.

Discharge resistance:
Measurement with a megger between a grounding point and the electrode on a surface.

Do you have any questions? Would you like to arrange an ESD consultation?

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  • We can develop a tailor-made EPA for you
  • And provide you with the appropriate products for dealing with ESD-sensitive assemblies.
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