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

Hannu Salmela (Corresponding Author), Jaakko Paasi, Tapio Kalliohaka, Lars Fast

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    10 Citations (Scopus)


    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.
    Original languageEnglish
    Pages (from-to)539 - 544
    Number of pages6
    JournalJournal of Electrostatics
    Issue number6-10
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed



    • electrostatic discharge
    • ESD
    • air discharge
    • ESD waveform
    • discharge measurement
    • ESD probe
    • electronic devices
    • failure

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