Device and method for removing liquid from a surface of a disc-like article
AssigneeLam Research Corporation
InventorsHarald Kraus, Axel Wittershagen
Life of this patent
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AssigneeLam Research Corporation
InventorsHarald Kraus, Axel Wittershagen
Estimating the term…
A method for removing liquid from a surface of a disc includes, rotating the disc article about an axis perpendicular to the disc's main surface, supplying liquid from a supply port, moved across the substrate towards the edge of the disc, onto the rotated disc, supplying a first gas flow through a first gas supply port onto the disc article to an area whose center has a distance to the center of rotational movement of not more than 20 mm, the area being covered with a liquid layer thereby opening the liquid layer at a discrete area, and supplying a second gas flow through a second gas supply port moved across the substrate towards the edge of the substrate onto the rotated disc wherein the distance of the second gas supply port to the center is lower than the distance of the liquid supply port to the center.
Method for removing a liquid layer from a main surface of a disc-like article comprising:
Dependencies are inferred from the claim text.