Modeling and optimization of BiCMOS embedded through-silicon vias for RF-grounding

In this paper we demonstrate the modeling and optimization of BiCMOS embedded high aspect ratio through-silicon vias (TSV) for RF-grounding applications. The inductance and the resistance of the TSV are analyzed with respect to TSV design parameters and process effects such as sidewall-tilting and void formation. RF measurement results with extracted inductance and resistance of 24 pH and 86 mΩ for a single TSV are in very good agreement with the simulation results. Based on the simulated and measured results, RLC-lumped-element models are developed considering the aforementioned process characteristics to provide realistic models for Process-Design-Kit (PDK) implementation.