Cavity model method based with gradient current distribution along the via for power integrity simulation

Cavity model is one of the key computational models for power distribution network simulation. However, the conventional cavity model assumes uniform current distribution along the via and its accuracy is limited to the coupling of close-placed vias. This paper presents an improved cavity model based with gradient current distribution assumption. The loop inductance and surface current distribution are simulated by the proposed cavity model. The comparison between improved and original models is employed to demonstrate the advantage of proposed model.

[1]  Liang Li,et al.  Accurate and efficient computation of power plane pair inductance , 2012, 2012 IEEE 21st Conference on Electrical Performance of Electronic Packaging and Systems.

[2]  Jun Fan,et al.  Frequency-dependent via inductances for accurate power distribution network modeling , 2009, 2009 IEEE International Symposium on Electromagnetic Compatibility.

[3]  Jun Fan,et al.  Physics-Based Inductance Extraction for Via Arrays in Parallel Planes for Power Distribution Network Design , 2010, IEEE Transactions on Microwave Theory and Techniques.

[4]  A.C. Cangellaris,et al.  Comprehensive models for the investigation of on-chip switching noise generation and coupling , 2005, 2005 International Symposium on Electromagnetic Compatibility, 2005. EMC 2005..

[5]  Ketan Shringarpure The study of a model for via transition and the multi-layer via transition tool GUI design , 2010 .

[6]  Albert E. Ruehli,et al.  Analysis of power/ground-plane EMI decoupling performance using the partial-element equivalent circuit technique , 2001 .