Coupling Noise Analysis Technique Using Random Walks
Random walk method has recently been proposed in signal integrity analysis such as power grid noise analysis. This paper proposes techniques to apply random walk method to signal noise analysis for the data path circuit containing non linear buffers and coupling capacitors.In order to fix output voltages and currents of non-linear buffer outputs,relaxation process is employed. To analyze coupling noise of both aggressors and victims,relaxation process is also introduced. The walk reward sharing technique improves computational efficiency by 6.2 times.In coupling noise analysis of example circuit,average voltage error of the coupling noise was 1.34% in 60 analysis timesteps and 50% delay error was 0.66% compared to SPICE. To analyze one timestep,average CPU time is 67 (ms) and the number of walks is 20,100 in 60 analysis timesteps.
Random walk Monte Carlo transient analysis Cross talk noise
Hitoshi Miwa Goro Suzuki
University of Kitakyushu,Fukuoka,JAPAN
国际会议
2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)
长沙
英文
754-759
2009-10-20(万方平台首次上网日期,不代表论文的发表时间)