Novel Complementary FeFET- based Lookup Table and Routing Switch Design and their Applications in Energy/Area-Efficient FPGA

This work explores the potential of voltage-mode complementary ferroelectric FET (CFeFET) to realize energy/area-efficient nonvolatile logics for both memory-intensive and computation-intensive applications. CFeFET can be constructed by a p-type FeFET stacking on a n-type FeFET with only one transistor's footprint. Each single CFeFET can be utilized as a 1-bit storage element and a 2-to-1 multiplexer without any short currents. Moreover, leakage current is further reduced due to higher
$\mathrm{V}_{\text{th}}$
of unselected n-FeFET or p-FeFET. Additionally, we further demonstrate FPGA building blocks using the CFeFET. Our simulation results show that the CFeFET can achieve superior Power-Performance-Area (PPA) when compared to the same designs implemented by SRAM or current-mode FeFET.