Calculation of the Via-Plate Capacitance of a Via with Pad Using Finite Difference Method for Signal/Power Integrity Analysis
نویسندگان
چکیده
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.
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