The Efficient Equivalent Model for Decoupling Capacitors of Power Distribution Network

Abstract

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 Labove 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-Labove 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.

Meeting Name

2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017 (2017: Dec. 14-16, Haining, China)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

Electric network analysis; Inductance; Approximate model; Decoupling capacitors; Equivalent inductance; Equivalent model; Ground planes; Power distribution network; Printed circuit boards (PCB); Target impedances; Printed circuit boards; PCB PDN

International Standard Book Number (ISBN)

978-1-5386-1238-5

International Standard Serial Number (ISSN)

2151-1233

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Dec 2017

Link to Full Text

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