Technology And Drift Characteristics Of UVCVD-SiO2/InP MISFET Devices

Ion implanted planar MISFET's on semi-insulating indium phosphide substrate were studied. In-situ treatment with ammonia and UV activated CVD of silicon dioxide provided for threshold voltage drift below 0.5 V on depletion-mode transistors. Inverters from enhancement/depletion transistor pairs and 19-stage ring oscillators were made.