Patent ID: 11955581
Assignee: TOYODA GOSEI CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 11:
12. A method for producing a Group III nitride semiconductor having a hetero junction of layers having different band gaps, a layer having a smaller bandgap including In, the method comprising at least one of a first case and a second case, wherein,
in the first case, hydrogen gas as a carrier gas is continuously increased in forming a layer having a larger band gap from the layer having the smaller band gap, thereby, forming a first type variable composition layer in which an In composition is continuously decreased in a streamline shape along the deposition direction, and
in the second case, hydrogen gas as a carrier gas is continuously decreased in forming the layer having the smaller band gap from a layer having a larger band gap, thereby, forming a second type variable composition layer in which an In composition is continuously increased in a streamline shape along the deposition direction.