Abstract

The fabrication technology is developed for and characteristics are investigated of a GaAs Schottky-barrier field-effect transistor (SBFET) with an effective gate length of 30 nm. The SBFET power gain cutoff frequency is 150 GHz. The noise factor at 12–37 GHz is comparable with that of two-dimensional electron gas transistors. The theoretical electron transit time under the gate is below 0.1 ps.

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