Electro-thermal coupling is only one aspect of numerous interactions betwee
n physical domains in microsystems. Different physical effects govern the f
unctionality of microsystems and the system-level modelling using standard
electro-thermal tools is not easy. In order to predict potential failures i
n microsystem designs and reduce the costs of prototyping, it is important
to involve the simulation of electro-thermal effects at the system level, e
arly in the design process. Also, it is necessary to conduct a final verifi
cation of the complete system with all governing subsystems, This paper con
siders different issues of electro-thermal modelling for microsystems and p
roposes analogue simulators with hardware description languages as a tool f
or the system-level modelling, With increasing system complexity, the mixed
abstraction modelling is the only way to achieve an optimal blend of the a
ccuracy and the speed. (C) 2001 Elsevier Science Ltd. All rights reserved.