Using electrostatic discharge test method for full characterization of dissipative and conductive materials

For many years, DC resistance and charge decay testing have been used to characterize dissipative materials. However, we have observed these tests to be sometimes inadequate in the face of non-ohmic behavior of some dissipative materials. We propose new testing methods using an ESD pulsation technique. This technique could determine an on-set threshold of strong discharge (> 10 mA in 100 nS) for a specific dissipative material. Employing static bleed-down control methods above this threshold could potentially endanger ESDS products. A human dissipative glove model simulation has established that a device could be damaged at a shifted voltage level after the on-set threshold of a strong discharge through a dissipative glove.