Model Reduction for Thermo-mechanical Simulation of Packages

Model reduction is a new numerical technique [1, 2] that allows us to obtain an accurate low-dimensional representation of high-dimensional finite elements models. Additionally, in the case of linear models the time to perform model reduction is comparable to the solution time of a stationary problem. Hence model reduction can be employed as a fast solver for a transient or harmonic problem during the optimization process [3]. The goal of the paper is to explore new possibilities and methodology to apply model reduction during design of new packages. The described approach has been limited by us to thermo-mechanical finite element models developed in ANSYS.