Finite-difference time-domain modeling of currents in multi-layered computer chip packages

Characterization and modeling of multi-conductor transmission line using Finite-difference Time-Domain method

“…The SPICE code used for this simulation is given in Appendix A, Table 1.1. (case I) 14 In fact they are so close that, over most of the time period, they are over lapping each other. A second approach of evaluation is to plot all the three sets of data in rows, below each other (sub plots), and to make sure under the same scale.…”

“…In the conventional algorithm, a uniform spatial grid is employed. To obtain good accuracy using this method, the smallest discretization Az is chosen to be on the order of hf to Af , where 10 20 Xhf is the minimum wavelength in the structure at the highest frequency of interest [14]. This is roughly the same grid density needed for Method of Moment (MoM), but FDTD scales upwards in frequency better than MoM [15].…”