Performance and design considerations for gate-all-around stacked-NanoWires FETs

Abstract

This paper presents recent progress on Gate-All-Around (GAA) stacked-NanoWire (NW) / NanoSheet (NS) MOSFETs. Key technological challenges will be discussed and recent research results presented. Width-dependent carrier mobility in Si NW/NS and FinFET will be analyzed, and intrinsic performance and design considerations of GAA structures will be discussed and compared to FinFET devices with a focus on electrostatics, parasitic capacitances and different layout options. The results show that more flexibility can be achieved with stacked-NS transistors in order to manage power-performance optimization.