An unconditionally stable finite-element timedomain layered domain-decomposition algorithm for simulating 3D high-speed circuits

Full-wave analysis has become critical to the signal integrity of 3D high-speed circuits due to increased electromagnetic (EM) effects. The finite-element time-domain (FETD) method has become a strong candidate among different EM algorithms and domain decomposition methods have been proposed to avoid the need to solve a global matrix equation in FETD. In this work, a novel unconditionally stable FETD-based domain-decomposition algorithm, named the layered domain decomposition (LADD), is proposed for the simulation of 3D high-speed circuits.