Patent ID: 6756246
Filing Date: 2004-06-29
Classification: C30B,H01L

Abstract:
A method for fabricating a Ill-V Group compound semiconductor, the method comprising:a step of preparing a base crystal containing gallium nitride-based compound semiconductor formed with a pattern mask; and a step of fabricating an overgrowth structure of gallium nitride-based compound semiconductor having a flat surface on said base crystal by utilizing a regrowth method; the fabricating step including a step of annihilating a plane parallel to the base crystal by a facet group including at least {33-62} facet, wherein the regrowth method is a hydride vapor phase epitaxy method, a carrier gas for conducting the regrowth is a mixed carrier gas of hydrogen gas and nitrogen gas, and the annihilating step is controlled by formation of the facet group through controlling a mixing ratio of the mixed carrier gas.