Compact Electro-Thermal Models for Integrated Systems

A novel approach is here proposed for the extraction of compact electro-thermal models of interconnects, in the static case, from their 3D discretized nonlinear electro-thermal models. It is based on Nonlinear Model Order Reduction and exploits Taylor’s series expansion of the discretized equations. Such extraction procedure of compact electro-thermal models is very efficient since it solely requires the alternate solutions of linear electric and linear thermal 3D discretized problems. Compact electro-thermal models with tiny numbers of degrees of freedom are able to be very accurate, as verified on a simple interconnection example.