Patent ID: 7063741
Filing Date: 2006-06-20
Classification: B82Y,C30B,Y10T

Abstract:
1. A method of forming at least one single crystal of a Group III metal nitride, the method comprising the steps of: a) providing a source material to a reaction vessel, wherein the source material comprises at least one Group III metal compound selected from the group consisting of compounds of aluminum, compounds of indium, and compounds of gallium, and wherein the reaction vessel has an inner chamber and is sealable with respect to nitrogen and ammonia and chemically inert; b) providing a flux material to the reaction vessel, wherein the flux material is a solid at about 30° C. and consists essentially of at least one of a nitride, an amide, a metal halide, urea, a derivative of urea, an ammonium salt, an alkaline earth fluoronitride, and combinations thereof; c) sealing the reaction vessel to provide a sealed reaction vessel comprising a reactant mixture consisting essentially of the source material provided in step a) and the flux material provided in step b); d) heating the reaction vessel to a predetermined temperature that is sufficient to decompose the Group III metal nitride and also applying a predetermined pressure to the vessel, wherein the predetermined pressure is sufficient to suppress decomposition of the Group III metal nitride at the predetermined temperature, and wherein the flux material dissolves at least a portion of the source material; and e) forming at least one single crystal of the Group III metal nitride.