Patent ID: 8864937
Filing Date: 2014-10-21
Classification: H01L

Abstract:
1. A substrate treatment apparatus comprising: a treatment chamber provided therein with a chemical solution treatment area for treating a substrate with a chemical solution and a drying treatment area provided above the chemical solution treatment area for drying the substrate; a substrate holding member vertically movably provided in the treatment chamber for holding the substrate horizontally; a lifting mechanism vertically moving the substrate in the range between the chemical solution treatment area and the drying treatment area; a chemical solution supply mechanism for supplying the chemical solution to the substrate held by the substrate holding member positioned in the chemical solution treatment area; a cup provided in the chemical solution treatment area to surround the periphery of the substrate holding member positioned in the chemical solution treatment area; a substrate rotating mechanism for rotating the substrate held by the substrate holding member around a vertical axis of rotation; a solution receiving portion, provided in the drying treatment area to surround the periphery of the substrate holding member positioned in the drying treatment area, for receiving a solution splashing from the substrate rotated by the substrate rotating mechanism, the solution receiving portion being mounted on a ceiling face of the treatment chamber; and a gas supply mechanism for supplying a low-humidity gas into the drying treatment area, the gas supply mechanism including a plurality of nozzles which are arranged laterally with respect to the substrate holding member and positioned in the drying treatment area, and which are arranged at intervals in a peripheral direction of the substrate holding member, the plurality of nozzles having respective discharge ports directing inward in a radial direction of the substrate rotation to discharge the low-humidity gas inward in the radial direction.