Design of four‐state inverter using quantum dot gate‐quantum dot channel field effect transistor
Supriya Karmakar · Electronics Letters · 2013
Quaternary logic can be implemented using quantum dot gate‐quantum dot channel field effect transistors (QDG‐QDCFETs) which produce four states in their transfer characteristics. A circuit model is used to simulate a four‐state state inverter which is the basic building block of any multi‐valued logic (MVL) circuit design. A basic problem of MVL implementation is the noise margin. The stable nature of the transfer characteristics of the QDG‐QDCFET can make them a promising circuit element in future MVL circuit design. Comparison of fabricated device characteristics and the model data is shown.