Patent ID: 7494546

Claim:
A method for fabricating coatings and thin films of group III metal-nitride materials using electron beam evaporation, the method comprising the steps of: positioning at least one source of at least one group III metal in a processing chamber; loading a substrate in said processing chamber; elevating a temperature of said substrate to a selected temperature; filling said processing chamber with a nitridizing reaction gas at a selected pressure; directing an electron beam of a predetermined electron beam power level to said at least one source of the at least one group III metal; and controlling the electron beam power to be in the range of 6-10 kW to thereby produce a vapor of said at least one group III metal at a predetermined evaporation rate, said substrate temperature, said nitridizing reaction gas pressure and said deposition rate being selected to react said group III metal vapor with said nitridizing reaction gas during said at least one group III metal transport to said substrate to thereby deposit molecules of at least one group III metal-N on a surface of said substrate at a predetermined deposition rate and to optimize quality of resulting group III metal-N coatings and thin films; wherein said group III metal-N coatings and thin films are selected from a group consisting of GaN, InN, AlGaN, and InGaN.