ABSTRACT
This chapter presents a large-signal field solving approach that faithfully represents semiconducting material responses. The method exploits a Legendre transformation on the full-wave formulation such that one can apply standard backward Euler differential methods for adaptive time integration. Furthermore, the chapter incorporates Gauss’ law as a constraint that should be respected at all time instances. The gauge condition results ‘for free’ once the solution is obtained. It demonstrates the correctness of the method by applying it to an industrial design problem, that is, by computing the large-signal response of an integrated inductor above a semi-conducting substrate. The transient information provides complementary insight in the behavior of complex designs in which electromagnetic interaction can jeopardize the ‘first-time-right’ electronics design automation goal. In particular, RF modeling in the frequency domain is limited to the small-signal response superpositioned to a fixed operation point.
