Modeling the Geometry-Dependent Parasitics in Multi-Fin FinFETs

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The geometry-dependent parasitic components in multi-fin FinFETs are studied. The gate-resistance has a stronger dependent on the device geometry compared with the planar MOSFETs. Parasitic fringing capacitance and overlap capacitance become highly coupled to the gate geometry. In this work, we analyse the gate resistance using a distributed RC approach and study the gate capacitance using a conformal mapping approach. A physical model that account for the gate resistance and parasitic capacitive couplings between Source/Drain and gates is presented.

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Journal: TechConnect Briefs
Volume: 3, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 3
Published: May 20, 2007
Pages: 590 - 593
Industry sector: Sensors, MEMS, Electronics
Topics: Compact Modeling
ISBN: 1-4200-6184-4