Nanotech 2002 Vol. 1
Nanotech 2002 Vol. 1
Technical Proceedings of the 2002 International Conference on Modeling and Simulation of Microsystems

Circuit Simulation Chapter 12

Compact Thermal Model for Transient Temperature Fields in Electronic Systems

Authors: Y.C. Gerstenmaier and G. Wachutka

Affilation: Munich University of Technology, Germany

Pages: 608 - 611

Keywords: thermal modeling, compact thermal model, multi-chip-module, thermal interaction

Abstract:
A thermal model is presented, which describes the evolution of the temperature distribution in electronic systems. Introducing a set of deliberately chosen effective time constants, the time dependence is given by convolution integrals with the dissipated power, which are independent of position. Multiplying with a low order matrix which depends on position but not on time, the temperature field is obtained. The matrix constitutes the model and is fitted with a linear and fast algorithm to measurement or simulation. The number of space positions for which the matrix is defined may be reduced arbitrarily to locations of interest to obtain a compact model. As a consequence of the separation of the variables of position and time, a very fast and accurate calculation of the temperature evolution in MCM (multi-chip-modules) is achieved which is beyond the possibilities of FEM-analysis in the case of power pulses over long time intervals. The thermal interaction of different chips in a MCM is investigated.

Compact Thermal Model for Transient Temperature Fields in Electronic Systems

ISBN: 0-9708275-7-1
Pages: 764