Number of voltage levels required

Most standards do not accept testing at the qualification voltage alone. They usually require that a sample of devices is subjected to ESD at a range of voltages below the device qualification voltage. For example, to qualify a device at 2kV HBM according to AEC-Q100-002-REV-D would require testing a sample of three devices at each of 500V, 1000V, 1500V and 2000V levels. We are happy to provide guidance on the requirements of specific standards on request.