MUX-DEMUX using a Spatial Wave-Function Switched Field Effect Transistor (SWSFET)

A spatial wave-function switched field effect transistor (SWSFET) conducts through different channels within its structure. The switching of charge carriers between different channels can be controlled by the gate voltage. The self-consistent Schrodinger and Poisson equation solution can explain the switching of charge population in different channels of a SWSFET. A circuit model is developed by modifying the BSIM 3.2.2 IGFET (Insulated Gate Field Effect Transistor) model. Different circuits can be designed for a SWSFET with less circuit elements than conventional CMOS. The innovative circuit design using the SWSFET can make only electrons participate in the circuit operation with better performance. This work discusses the design of an ultrafast 3-in-1 multiplexer and 1-to-3 demultiplexer using the SWSFET where only one SWSFET is used to design the circuit.