Ambipolarity characterization of tunneling field-effect transistors

A new transistor parameter “ambipolarity factor (ν)” has been defined for SOI tunneling field-effect transistors (TFETs) and its usefulness has been discussed. The proposed ν indicates the severity of ambipolarity of TFETs quantitatively. Therefore, it is expected that ν will be helpful to suppressing OFF current for low-power consumption.