Patent ID: 7913706
Filing Date: 2011-03-29
Classification: H01L

Abstract:
1. An apparatus for processing at least one microelectronic workpiece, comprising: a) a process chamber including a workpiece support that is positioned within the processing chamber and onto which the at least one microelectronic workpiece can be positioned during a treatment; b) a barrier structure including a lower surface that overlies and at least partially covers a workpiece when provided for treatment, wherein the lower surface of the barrier structure includes a surface that angles toward the workpiece support in a radially outward direction; c) an additional surface that is fluidly coupled to the barrier structure such that liquid can flow from the additional surface to the angled surface of the lower surface of the barrier structure; and d) a plurality of nozzles aimed at and positioned sufficiently close to the additional surface so that a liquid can be flowingly dispensed onto said additional surface such that the liquid can form a sheet and wet the angled surface of the lower surface of the barrier structure.