Patent ID: 8029641

Claim:
A device for wet treating a defined peripheral edge-region of a wafer-shaped article having a first surface plane (W 1 ), a second surface plane (W 2 ), and an edge surface; the device comprising: a support for holding the wafer-shaped article, the support comprising at least three gripping members for securely holding said edge surface of the wafer-shaped article during operation, wherein the gripping members can be radially moved outwardly for opening; and liquid dispensing means for dispensing liquid onto said first surface plane (W 1 ) of the wafer-shaped article not facing the support; and a liquid guiding member mounted to the support, the liquid guiding member for guiding at least a part of said liquid around the edge surface of the wafer-shaped article towards the second surface plane (W 2 ) of the wafer-shaped article facing the support thereby wetting at least the edge surface, wherein said liquid guiding member has the form of a ring, said ring having a liquid guiding lip that projects from a plane of symmetry (M) between the first surface plane (W 1 ) and the second surface plane (W 2 ) of the wafer-shaped article with respect to the support, and wherein a diameter (dL) of the liquid guiding lip is greater than a diameter of the wafer-shaped article (dW).