A new method is developed to assess the effectiveness of local decoupling capacitors on parallel-plate power and ground conductors. The proposed method calculates the loop-inductance of multiple capacitors including their mutual interactions and the effect of power and ground vias. The underlying theory is based on computing the driving point impedance of a device power pin which serves as a reference in the evaluation of capacitor's effectiveness. The accuracy of the proposed method is validated by comparing the results to those from a full-wave electromagnetic simulation.

Additional Metadata
Keywords decoupling capacitors, effectiveness radius, parallel-plate waveguide, Power delivery network, power integrity, radial wave propagation
Persistent URL dx.doi.org/10.1109/EDAPS.2017.8276971
Conference 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017
Citation
Erdin, I. (Ihsan), & Achar, R. (2018). Analysis of decoupling capacitors inside via arrays with mutual interaction. In 2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium, EDAPS 2017 (pp. 1–3). doi:10.1109/EDAPS.2017.8276971