On Finding the Optimal Number of Decoupling Capacitors by Minimizing the Equivalent Inductance of the PCB PDN

Author

Ketan Shringarpure
Biyao Zhao
Leihao Wei
Bruce R. Archambeault, Missouri University of Science and TechnologyFollow
Albert E. Ruehli, Missouri University of Science and TechnologyFollow
Michael Andrew Cracraft
Matteo Cocchini
Edward D. Wheeler, Missouri University of Science and TechnologyFollow
Jun Fan, Missouri University of Science and TechnologyFollow
James L. Drewniak, Missouri University of Science and TechnologyFollow

Abstract

PCB-PDN design remains a challenge with the reducing noise margins. One aspect of PDN design is finding the number of decoupling capacitors required for each power rail. As more capacitors are added, the mid frequency equivalent inductance in the impedance of the PCB-PDN converges to a minimum value for each placement pattern. This convergence is studied for different placement patterns to find the least number of capacitors required to satisfy a certain convergence criteria. A first principle method is used resonant cavity model for the analysis.

Recommended Citation

K. Shringarpure and B. Zhao and L. Wei and B. R. Archambeault and A. E. Ruehli and M. A. Cracraft and M. Cocchini and E. D. Wheeler and J. Fan and J. L. Drewniak, "On Finding the Optimal Number of Decoupling Capacitors by Minimizing the Equivalent Inductance of the PCB PDN," Proceedings of the IEEE International Symposium on Electromagnetic Compatibility (2014, Raleigh, NC), pp. 218 - 223, Institute of Electrical and Electronics Engineers (IEEE), Aug 2014.

The definitive version is available at https://doi.org/10.1109/ISEMC.2014.6898973

Meeting Name

2014 IEEE International Symposium on Electromagnetic Compatibility (2014: Aug. 4-8, Raleigh, NC)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Center for High Performance Computing Research

Second Research Center/Lab

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Electromagnetic compatibility; Inductance; Organic pollutants; Polychlorinated biphenyls; Decoupling capacitor; Equivalent inductance; PDN noise; plane-pair PEEC; Power Distribution Network Design; Capacitors; Decoupling capacitor placement

International Standard Serial Number (ISSN)

1077-4076

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

08 Aug 2014