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 Decay time: The time interval, in which a potential of a charged body is reduced from an initial value (maximum) to a defined lower value by connecting it to ground potential.
Discharge time: The time interval, in which a potential of a charged body is reduced from an initial value (maximum) to a defined lower value by means of forced recombination through ionizing equipment.
Electrostatic discharge (ESD): Transfer of charge between bodies at different electrostatic potentials caused by direct contact or induced by electrostatic field.
Electrostatic discharge sensitive devices (ESDS): Discrete device, integrated circuit or assembly that may be damaged by electrostatic fields or discharge encountered in routine handling, testing or transit.
Electrostatic discharge shielding material: Barrier or enclosure that limits the passage of current and attenuates the energy resulting from an electrostatic discharge.
ESD - susceptibility (voltage sensitivity): The maximum voltage at which the ESDS does not suffer any ESD damage. The ESDS are usually classified in different susceptibility classes. This is a controversial issue just to classify according to voltage level and not taking into account time, peak currents and transformed energy. A smaller voltage pulse lasting longer can cause more damage
Electrostatic conductive material: Having a surface resistance ≥ 102 Ω and < 105 Ω (surface resistances, measured with the ESD S11.11 electrode, are a factor 10 lower than the resulting surface resistivities).
ESD - protected area (EPA): Area in which ESDS can be handled with accepted reduced risk of damage as a result of electrostatic discharge or fields.
EPA - Ground bonding point (EBP): dedicated point to which an EPA-equipment and personnel via grounding cord can be connected.
 Electrostatic dissipative material: Having a surface resistance ≥ 105 Ω and < 1011 Ω (surface resistances, measured with the ESD S11.11 electrode, are a factor 10 lower than the resulting surface resistivities).
Groundable point: Dedicated point which can be connected to EPA- ground.
Insulative material: Having a surface resistance ≥ 1011 Ω
Low charging: exhibiting properties which minimize any charge generation. The term "astatic" and "antistatic" should be avoided due to the different existing meanings and understandings.
Proximity packaging: Transport material not making contact with ESDS but which is used to enclose one or more devices.
Resistance to ground: Resistance between an electrode on the surface of an installed specimen and ground potential.
Resistance to groundable point: Resistance between an electrode on the surface of a specimen and a counterlectrode, dedicated to be connected to ground potential under work conditions.
Secondary packaging: Transport material used primarily to give additional physical protection to the outside of a proximity packaging.
Surface resistivity: is equivalent to the surface resistance of a square area, having the electrodes at 2 opposite sides.
Surface resistance: the ratio of a d.c. voltage applied between two electrodes on a surface of a specimen and the steady-state current between the electrodes.
 Triboelectric charging: Electrical charging process in which charge is generated by the contact and separation of two surfaces which may be solid, liquid or particulate-carrying cases.
Volume resistance: The ratio of a d.c. voltage applied between 2 electrodes placed on 2 opposite surfaces of a specimen and the steady-state current between the electrodes.
Volume resistivity: The ratio of a d.c. field strength (V/m) and the steady-state current density (A/m2) within the material. In practice, it is equivalent to the volume resistance of a cube with the unit length, having the electrodes at 2 opposite surfaces.
Voltage suppression: The phenomenon of an apparent charge drainage by increasing the capacity of a charged body (e.g. getting close to a grounded electrode surface).
Secondary packaging: Transport material used primarily to give additional physical protection to the outside of a proximity packaging.
Contact Transforming Technology for your ESD protection needs.
Transforming Technologies, LLC
3719 King Rd.
Toledo, OH 43617
(419)841-9552
(419)841-3241 fax
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