Results from silicon-on-insulator (SOI) MESFETs designed for subthreshold operation are presented. The transistors have subthreshold slopes as low as 78 mV/dec and off-state drain currents approaching 1 pA/ μm. Drain current saturation can be achieved with drain voltages of less than 0.5 V and with output impedance> 100 MΩ · μm. The cutoff frequency of a 500-nm gate length device exceeds 1 GHz at currents significantly less than 1 μA/ μm. These results suggest that subthreshold SOI MESFETs might have useful applications in mixed-signal, micropower circuit design.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering