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

Claim 13:
14. The substrate processing method of claim 12, further comprising:
decreasing a first 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,
wherein the first collision angle is an angle formed by the top surface of the substrate and a straight line connecting the intersection point and a collision point of the fluid on the top surface of the substrate, when viewed from a direction of a straight line connecting the collision point and a center point of the top surface of the substrate, and
the first collision angle decreases as the collision point is more deviated to a front of a rotational direction of the substrate from a directly-under point on the top surface of the substrate directly below the intersection point.