Patent ID: 7397253
Filing Date: 2008-07-08
Classification: G01R

Abstract:
1. In an electrostatic discharge transmission line pulse (TLP) device for testing the response of a device under test (DUT) to a high voltage test pulse, including a pulse generator for generating a pulse, a cable having an input terminal coupled to said pulse generator, an output terminal, and at least one ground return terminal, for coupling said pulse to the DUT when it is connected to said output terminal, and a sensor for sensing the voltage and current at a selected point in said cable, a method for calibrating said TLP device comprising: selectively shorting between said output terminal and said ground return terminal, generating a pulse having a selected voltage, and calculating the series resistance R where V ms and I ms are the measured voltage and current respectively at said selected point in said cable; selectively creating an open circuit between said output terminal and said ground return terminal, generating a pulse having a selected voltage, and calculating the shunt resistance R where V mo and I mo are the measured voltage and current respectively at said selected point in said cable; and calculating corrected pulse current i where a 11 =1+R S /R SH , a 12 =−R S , a 21 =−1/R SH , and a 22 =1+R S /R SH .