On Finding the Optimal Number of Decoupling Capacitors By Minimizing the Equivalent Inductance of the PCB PDN
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.
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," IEEE International Symposium on Electromagnetic Compatibility, pp. 218-223, Institute of Electrical and Electronics Engineers (IEEE), Aug 2014.
The definitive version is available at http://dx.doi.org/10.1109/ISEMC.2014.6898973
2014 IEEE International Symposium on Electromagnetic Compatibility (2014: Aug. 4-8, Raleigh, NC)
Electrical and Computer Engineering
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)
Article - Conference proceedings
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