Patent ID: 7863164

Claim:
A method of growing gallium nitride (GaN) using a chemical vapor deposition (CVD) and a hydride vapor phase epitaxy (HVPE), comprising steps of: (a) obtaining a substrate made of LiAlO 2 and a reactor device; (b) deposing said LiAlO 2 substrate on a seat, deposing a gallium (Ga) metal in a movable boat, flowing at least a gas into said reactor device, and processing said CVD in said reactor device under a high temperature to deposit a GaN nanostructure on said LiAlO 2 substrate; and (c) processing said LiAlO 2 substrate through said HVPE in said reactor device with said GaN having said nanostructure as nucleus sites to obtain a thick GaN film by adjusting a temperature and a flow speed of said gas.