Patent ID: 7438761

Claim:
A method for fabricating a III-V nitride film, comprising the steps of: preparing a double structure reactor constructed of an inner reactor and an outer reactor, capable of detecting a gas leak in between the inner reactor and the outer reactor, providing an evacuation system in communication with a space between the inner reactor and the outer reactor, providing a N 2 gas conduit in communication with said space between the inner reactor and the outer reactor, the N 2 gas conduit being located at an end of the reactors opposite the evacuation system, charging said space between the inner reactor and the outer reactor with N 2 gas using the N 2 gas conduit, evacuating said space between the inner reactor and the outer reactor using the evacuation system, charging at least an aluminum metallic material in the upstream side of the inner reactor and setting a given substrate in the down stream, as viewed from a gas flow direction, introducing a chloride-based gas with a carrier gas into the inner reactor from the outside, to generate an aluminum chloride gas through the reaction of the aluminum metallic material with the chloride-based gas, and introducing an ammonia gas with a carrier gas into the inner reactor from the outside, to epitaxially grow a III-V nitride film including at least Al element on the substrate by using a Hydride Vapor Phase Epitaxy method through the reaction of the aluminum chloride gas with the ammonia gas.