Patent ID: 11967501
Assignee: KOKUSAI ELECTRIC CORPORATION
Field: Surface technology, coating (Chemistry)
Classification: CPC H  B  C | IPC B  C  H

Claim 1:
2. The substrate processing apparatus of claim 1,
wherein the second injector comprises a vertically elongated slit as the at least one opening,
wherein the third injector comprises an ascending pipe and each of the first injector and the third injector comprises a descending pipe, and the ascending pipe of the third injector comprises a third hole-free region where no ejection hole is provided, the third hole-free region vertically extending so as to include the middle region and
wherein the at least one opening of the second ejector is arranged from a lower end to an upper end of the middle region, a height of a lower end of the at least one opening is substantially the same as that of a lower end of the first hole-free region, and a height of an upper end of the at least one opening is substantially same as that of an upper end of the third hole-free region.