Patent ID: 11879184
Assignee: PANASONIC HOLDINGS CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The manufacturing apparatus for a group-III nitride crystal according to claim 1, wherein
an angle that is formed by a perpendicular portion, that is perpendicular to the surface of the seed substrate, of a nitrogen element-containing gas supply inlet to supply the nitrogen element-containing gas into the nurturing chamber and an inclined portion that is inclined from the perpendicular portion is denoted by “ϕ”, wherein
an angle that is formed, in a cross-sectional view of the nurturing chamber, by a line connecting a center of the seed substrate and the forward end of the nitrogen element-containing gas supply inlet to each other and a longitudinal direction of the nitrogen element-containing gas supply inlet is denoted by “γ”, and wherein
following Eqs. (6) and (7),

90°<ϕ<180°  (6)

15°≤γ≤25°  (7), are further satisfied.