Patent ID: 9677811
Date: 2017-06-13
CPC Classifications: F26B,H01L

Claim:
1. A substrate cleaning and drying apparatus, comprising: a substrate holder configured to hold a substrate; a rotating device configured to rotate the substrate holder; a cylindrical cup surrounding a peripheral portion of the substrate; a gas ejector disposed below the substrate, the gas ejector having at least one gas discharge opening arranged along an entire circumference of the substrate and being configured to discharge a gas downwardly from the gas discharge opening to induce downward flow of air in a gap between a peripheral portion of the substrate and the cylindrical cup; and a cylindrical skirt disposed below the substrate and configured to rotate together with the substrate holder, wherein the gas ejector includes gas intake elements secured to an inner circumferential surface of the cylindrical skirt, wherein the gas intake elements have gas intake openings that are open toward a rotational direction of the substrate holder, and wherein the gas intake openings communicate with the gas discharge opening located outside the cylindrical skirt.