Patent ID: 8470694

Claim:
An apparatus for growing a nitride semiconductor crystal film, comprising: a chamber in which an inside temperature and an inside air pressure are controllable; a susceptor supported by a rotating shaft inside the chamber and on which a growth substrate is placed; a reactant gas supplier that emits reactant gas to the growth substrate on the susceptor in parallel to a surface of the growth substrate; a first subflow gas supplier that emits first subflow gas for pressing the reactant gas down to the surface of the growth substrate at an inclination angle of 45 to 90 degrees to the surface of the growth substrate in a three-dimensional direction from a position above the growth substrate on the susceptor in a same in-plane direction as an emitting direction of the reactant gas; a second subflow gas supplier that emits second subflow gas for removing the reactant gas from a periphery of the growth substrate, the second subflow gas supplier emitting the second subflow gas to the surface of the growth substrate at an inclination angle of 45 to 90 degrees to the surface of the growth substrate in a three-dimensional direction from a position above the growth substrate on the susceptor, the inclination angle at which the second subflow gas supplier emits the second subflow gas being different from the inclination angle at which the first subflow gas supplier emits the first subflow gas; and an exhaust device that exhausts gas from the chamber.