Patent ID: 11915944
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. The substrate processing method of claim 12, further comprising:
increasing a second collision angle continuously or in stages while moving the nozzle from an inner side of the substrate in the diametrical direction toward an outer side of the substrate in the diametrical direction thereof,
wherein the second collision angle is an angle formed by a straight line connecting a directly-under point on the top surface of the substrate directly under the intersection point and a collision point of the fluid on the top surface of the substrate and a tangent line of a circle centered on a center point of the top surface of the substrate at the collision point, and
the second collision angle increases as the collision point is more deviated from the directly-under point outwards in the diametrical direction of the substrate.