2009•IEEE Transactions on Electron DevicesRequires access

Closed-Form Expressions of 3-D Via Resistance, Inductance, and Capacitance

Ioannis Savidis, Eby G. Friedman

Abstract

Closed-form expressions of the resistance, capacitance, and inductance for interplane 3-D vias are presented in this paper. The closed-form expressions account for the 3-D via length, diameter, dielectric thickness, and spacing to ground. A 3-D numerical simulation is used to extract electromagnetic solutions of the resistance, capacitance, and inductance for comparison with the closed-form expressions, revealing good agreement between simulation and the physical models. The maximum error for the resistance, capacitance, and inductance is less than 8%.

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Key concepts: Inductance, Capacitance, Equivalent series inductance, Closed-form expression, Electrical reactance, LCR meter, Dielectric, Differential capacitance