공진현상을 감소시키기 위한 효율적인 파워/그라운드 네트 워크 디자인

Abstract

This paper presents a new analytical model to suppress RLC resonance effects in power/ground lines due to a decoupling capacitor. First, the resonance frequency of an RLC circuit which is composed of package inductance, decoupling capacitor, and output drivers is accurately estimated. Next, using the estimated resonance frequency, a suitable decoupling capacitor size is determined. Then, a novel design methodology to suppress the resonance effects is developed. Finally, its validity is shown by using 0.18 µm process-based-HSPICE simulation.