1. An apparatus for predicting a steady state temperature of a solid state electronic device, comprising: a thermocouple for detecting temperature of the solid state electronic device; a processor in communication with the thermocouple and programmed with instructions for performing an algorithm, the instructions to: construct an initial curve for the solid state electronic device by detecting a starting temperature for the solid state electronic device and at least three operating temperatures, the initial curve having a shape; obtain a plurality of theoretical temperature curves for the solid state electronic device; select one of the plurality of theoretical temperature curves having a shape closest to the shape of the initial curve; and superimpose the selected theoretical temperature curve on the initial curve to predict the steady state temperature.