Low temperature low pressure MOCVD Al x Ga 1- x Aslayergrown as a dielectric for GaAs MIS devices

Abstract
An oxygen doped AlxGa1-xAs layer is demonstrated as a dielectric for GaAs MIS structures. This layer is MOCVD grown at 550°C with an operating pressure of 10 torr. By keeping the aluminium content low, it is possible to obtain a dielectric with relatively high resistivity and very good interface quality.