Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:21Q3
Session:
Number:21Q3-1
Calculation of the Via-Plate Capacitance of a Via with Pad Using Finite Difference Method for Signal/Power Integrity Analysis
Y. Zhang,
pp.141-144
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
Finite difference method is used to calculate the via-plate capacitances for vias with pad. Due to the symmetric structure, the solving domain is reduced to a rectangular ρ − z region. Boundary conditions along the region are discussed. Both barrel-plate and pad-plate capacitances are studied with various geometric parameters. The results could be used as validations for possible analytical expressions of these capacitances.