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

Claim 9:
10. A method for producing a Group III nitride semiconductor device, the method comprising:
growing a first semiconductor layer; and
growing a second semiconductor layer, wherein
the first semiconductor layer is a Group III nitride semiconductor layer containing In,
the second semiconductor layer is a Group III nitride semiconductor layer,
the second semiconductor layer has a band gap larger than a band gap of the first semiconductor layer,
a flow rate of hydrogen gas used as a carrier gas in growing the second semiconductor layer is larger than a flow rate of hydrogen gas in growing the first semiconductor layer, and
a variation mode of the flow rate of the hydrogen gas comprises at least one mode, one mode being a linearly increased mode in an initial stage of the growth of the second semiconductor layer, the other mode being a linearly decreased mode in a final stage of the growth of the second semiconductor layer.