AllegroPCBPI_DesignCon04Investigating Via and Discrete Capacitor Effects Using Power Integrity Design Tools and Measurement Results Kun Zhang, Huawei Technologies Co. Zhen Mu, Cadence Design Systems, Inc Heiko Dudek, Cadence Design Systems, Inc Power delivery system design affects the performance of high-speed printed circuit board (PCBs). Good design strategy in a high-speed system not only provides clean and stable power supplies to the components, but also helps reduce design cycles and manufacturing costs. As the signal spectrum reaches the multiple megahertz to gigahertz range, power delivery design problems can no longer be ignored. It is evident that the results of power delivery and EMI research will soon lead the technology trend in the fields of high-speed analysis and simulation. In recent years, met……