Patent ID: 8489378

Claim:
A computer-implemented method of generating an SCR model for at least one silicon controlled rectifier (SCR), the method comprising: including a unique diode model for each of a plurality of diodes electrically connected in series in the SCR model, the plurality of diode models including: a first forward biased diode model electrically connected between an anode terminal and a n-well node of the SCR model and corresponding to a first junction between an anode and a n-well of the at least one SCR; a second forward biased diode model electrically connected between a p-well node and a cathode terminal of the SCR model and corresponding to a second junction between a p-well and a cathode of the at least one SCR; and a reverse biased diode model electrically connected between the n-well node and the p-well node of the SCR model and corresponding to a third junction between the n-well and the p-well of the at least one SCR; and adjusting, using a computer, a set of parameters for each unique diode model using DC measurement data for the corresponding junction of the at least one SCR.