Patent ID: 6033942
Filing Date: 2000-03-07
Classification: H01L

Abstract:
A method of forming a metal-semiconductor field effect transistor (MESFET) assembly, comprising the steps of:providing a semi-insulating substrate;forming a semiconductor active layer on said semi-insulating substrate;forming a source electrode having a plurality of source fingers each disposed in ohmic contact with said semiconductor active layer;forming a drain electrode having a plurality of drain fingers each disposed in ohmic contact with said semiconductor active layer alternately with said source fingers; andforming a gate electrode having a plurality of gate fingers, said gate fingers being disposed in Schottky contact with said semiconductor active layer between respective said source fingers and said drain fingers to form a plurality of unit FETs including at least first and second unit FETs, said first unit FET having a first pinch-off voltage different from a second pinch-off voltage of said second unit FET.