The efficient equivalent model for decoupling capacitors of power distribution network

Decoupling capacitor is an essential part of power distribution network (PDN) of a high speed printed circuit board (PCB) for power noise regulation. The total equivalent inductance above the top ground plane looking into the decoupling capacitor is regarded as L above which is an important part of...

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Bibliographic Details
Main Authors: Sichen Yang, Er-Ping Li, Cao, Ying S., Hanzhi Ma, Jonghyun Cho, Ruehli, Albert E., Drewniak, James L.
Format: Conference Proceeding
Language:English
Subjects:
Decoupling capacitors
inductance
PCB PDN
Online Access:Request full text
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Summary:Decoupling capacitor is an essential part of power distribution network (PDN) of a high speed printed circuit board (PCB) for power noise regulation. The total equivalent inductance above the top ground plane looking into the decoupling capacitor is regarded as L above which is an important part of PDN in order to meet the target impedance. Creating an approximate model for decoupling capacitor is valuable for PDN design. In this paper, an approximate shorted pad pattern model is established for decoupling capacitor mounted case so that getting the inductance of L above is simplified. In this way, getting the inductance quickly can provide intuitive guideline in designing PDN and facilitate industry to choose what they want in consideration of the inductance.
ISSN:2151-1233
DOI:10.1109/EDAPS.2017.8276934