Calibration of detailed thermal models by parametric dynamic compact thermal models

In this paper it is shown how parametric dynamic compact thermal models can be exploited for the calibration of detailed thermal models of electronic components and packages. A constrained least square fit of the thermal response of a parametric dynamic compact thermal model, having as parameters the material thermal properties and geometrical details to be calibrated, onto the measured temperature response is performed. Numerical results show that the use of parametric dynamic compact thermal models instead of detailed compact thermal models, in conjunction with an optimization algorithm solving the constrained least square problem, can reduce the computational time for calibration by more than two orders of magnitude.