Patent ID: 9508567
Filing Date: 2016-11-29
CPC Classification: H01L

Claim Text:
1. A method of cleaning a substrate processing apparatus to clean components of the substrate processing apparatus, the components having been positioned around a product substrate held by a substrate holding unit at the time of liquid processing of the product substrate, the method comprising: providing a first cleaning jig which includes a disk-shaped lower member having an opening formed at a central portion thereof, and a disk-shaped upper member connected to the lower member and forming a gap between the upper member and the lower member; holding the lower member of the first cleaning jig by the substrate holding unit; rotating the substrate holding unit around a vertical axis to rotate the first cleaning jig; and ejecting a cleaning liquid toward the first cleaning jig from a bottom side of the first cleaning jig while the first cleaning jig is rotated, such that the cleaning liquid is passed through the opening of the lower member to reach a bottom surface of the upper member, wherein the cleaning liquid that has reached the bottom surface of the upper member flows out toward outside of the first cleaning jig via the gap between the upper member and the lower member, the components of the substrate processing apparatus are cleaned by the cleaning liquid that has flowed out, and the lower member of the first cleaning jig is a disk-shaped member that has the same diameter as the product substrate processed by the substrate processing apparatus, and the upper member is a disk-shaped member that has a smaller diameter than the lower member.