Patent ID: 6756320
Filing Date: 2004-06-29
Classification: C23C,C30B,H01L

Abstract:
A method of forming a dielectric layer structure on a semiconductor structure comprising the steps of:providing a GaAs-based semiconductor structure; depositing a first layer of gallium oxide on a surface of the structure through evaporation of a first source; and depositing a second layer of a Ga-Gd-oxide on the first layer through evaporation of a second source distinct from said first source, wherein the first source is crystalline Ga2O3 and the second source is a Gd source material, wherein the crystalline Ga2O3 is evaporated using a first of Ga-Gd-oxide high temperature effusion cell, and wherein the Gd source material is evaporated using a second high temperature effusion cell distinct from said first effusion cell.