Crosstalk effect in coupled interconnect lines using FDTD method

Technological advancement below 65nm has resulted in high speed complex VLSI interconnects. As an essential design criterion, these high frequency interconnects require accurate analysis in time/frequency domain and crosstalk estimation. This research work employs the finite difference time domain (FDTD) method for estimation of voltages and currents on coupled transmission line. Moreover, crosstalk delay in RLC interconnects is analyzed using FDTD method. Both functional and dynamic crosstalk effects in coupled line configuration are analyzed. Effect of line resistance on delay is also evaluated. A linear resistive driver is used to drive distributed RLC transmission line. Encouragingly, analytical results for proposed FDTD model are in good agreement with HSPICE circuit simulation results.