Patent ID: 11869767
Assignee: NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
Field: Surface technology, coating (Chemistry)
Classification: CPC H  C | IPC C  H

Claim 0:
1. A gallium nitride vapor phase epitaxy apparatus used in vapor phase epitaxy not using organic metal as a gallium raw material, the apparatus comprising:
a reactor vessel;
a wafer holder arranged in the reactor vessel;
a first raw material gas supply pipe configured to supply a first raw material gas containing gallium into the reactor vessel;
a second raw material gas supply pipe configured to supply a second raw material gas, which contains nitrogen and configured to react with the first raw material gas, into the reactor vessel;
a third raw material gas supply pipe configured to supply a third raw material gas containing magnesium into the reactor vessel, the third raw material gas supply pipe configured to have a magnesium-based oxide on its supply path; and
a first heating unit configured to heat the magnesium-based oxide placed in the third raw material gas supply pipe in a first temperature range.