Measurements of air discharges from insulating, electrostatic dissipative and conductive materials with different ESD probes

In this work, we have compared the performance of three different kinds of passive resistor-transmission line ESD probes: an unshielded ball probe, a shielded ball probe with the ESD current collected on a coaxial wire tip, and a needle-like probe. We have measured discharges from ESD sources having...

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Bibliographic Details
Published in:Journal of electrostatics 2005-06, Vol.63 (6), p.539-544
Main Authors: Salmela, Hannu, Paasi, Jaakko, Kalliohaka, Tapio, Fast, Lars
Format: Article
Language:English
Subjects:
Air discharge
Discharge measurement
Electrostatic discharge
ESD probe
ESD waveform
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Summary:In this work, we have compared the performance of three different kinds of passive resistor-transmission line ESD probes: an unshielded ball probe, a shielded ball probe with the ESD current collected on a coaxial wire tip, and a needle-like probe. We have measured discharges from ESD sources having different surface resistivities including charged insulator surfaces, electrostatic dissipative materials and metal plates. In compliance with the results, there is no single probe type that is ideal for all kinds of situations—there are significant differences between the probe responses comprising sensitivity, charge transferred and peak ESD current. As expected, the initiation of air discharges was suppressed in accordance with increasing surface resistivity of the ESD source.
ISSN:0304-3886
1873-5738
DOI:10.1016/j.elstat.2005.03.025