Patent ID: 8110416

Claim:
A method of electronic testing, comprising the steps of: providing an electronic component in an integrated circuit; applying a sinusoidal voltage signal to said electronic component at a non-zero frequency and measuring in-phase and out-of-phase current components of said component; varying the frequency of the applied signal in discrete steps from less than 10 Hz to above 100 MHz while repeating the measurement of the in-phase and out-of-phase current components of said electronic component at each frequency; varying the amplitude of the applied signal in discrete steps while repeating the above step of varying the frequency of the applied signal while repeating the measurement of the in-phase and out-of-phase current components of said electronic component at each frequency and amplitude; computing an in-phase impedance for each said in-phase current component value; computing an out-of-phase impedance for each said out-of-phase current component value; and analyzing said in-phase impedance values and said out-of-phase impedance values using a Nyquist plot, in which said in-phase impedance values are plotted on an x-axis of an x-y chart and said out-of-phase impedance values are plotted on a y-axis of an x-y chart.