Patent ID: 7988818

Claim:
Device for liquid treatment of a defined section of a wafer-shaped article (W), especially of a wafer, comprising: holding means for holding the wafer-shaped article; a mask which in shape and size corresponds to the area of the defined section which is to be treated with liquid, wherein the mask and holding means are stationary relative to one another with respect to rotation around an axis (A) which is perpendicular to the mask; spacer means which keep the mask and the wafer-shaped article at a defined short distance to one another such that liquid can be retained between the mask and the defined area of the wafer-shaped article by capillary forces; and a liquid line which is pointed at the surface of the wafer-shaped article facing the mask, wherein the elements of the spacer means are at the same time elements of a distance changing means which can increase a distance between the mask and the wafer-shaped article such that the retained liquid is not longer held by capillary forces.