A little known benefit of FinFET over Planar MOSFET in highperformance circuits at advanced technology nodes

Abstract

There is a difference in the nature of parasitic capacitance with electrical width of planar MOSFET and FinFET. This difference can be used to optimize FinFET circuits to achieve lower power dissipation and power density compared to planar MOSFET circuits. To achieve the best results, circuits should be re-optimized considering the parasitics before replacing planar MOSFETs with FinFETs.