“…The tool must be used to analyze the practice layout, to enter the electrical performance of the circuit and to calculate the impedance substrate matrix to analyze the substrate coupling. On this subject, some research programs have been published in recent years under electrical (Eo and Eisenstaedt, 1993;Savidis and Friedman, 2009), thermal (Lee, 2011;Schneider et al, 2008) or stress (Huang and Tan, 2011;Kong et al, 2011;Kwon et al, 2011;Ryu et al, 2012) analysis. The substrate extraction by BEM analysis has been proposed (Maffucci et al, 2004;de Magistris and de Tommasi, 2007;Weisshaar et al, 2002), but it is applied only to analyze coupling between contacts lying on the top surface of the substrate, not for 3D TSV structures.…”