A Review on emerging Phase Transition FETs (Hyper-FETs) for applications demanding Low Power

Negative Differential Resistance FET(Phase FET) is a recently proposed device with steep subthreshold characteristics. HyperFETs offer higher ION-OFF ratio[6] and thus hold promise to save power for lower technology nodes. Device level simulation of HyperFETs show steep transition of PTM from metallic to insulating state and vic-versa but the circuit level analysis show a different picture. Power savings obtained are not that significant at circuit level. Various constraints regarding circuit level design using HyperFETs have been discussed in order to optimize the designs for better power savings.