Patent ID: 11935739
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 17:
18. The substrate processing method of claim 17, wherein, when an angle formed between the straight line connecting the foot of a perpendicular line drawn from the ejection port of the processing liquid nozzle to a surface of the substrate to the liquid arrival point and a straight line connecting the ejection port of the processing liquid nozzle to the liquid arrival point is φ,
the processing liquid nozzle ejects the processing liquid such that the angle φ becomes a first angle smaller than 90 degrees when the gas is not ejected from the gas nozzle, and
the gas nozzle ejects the gas so as to change the direction of the processing liquid such that the angle φ becomes a second angle closer to 0 degrees than the first angle.