Patent ID: 7362412

Claim:
An apparatus, comprising: a chamber having a top and a sidewall and a bottom opening, said top transparent to selected wavelengths of light; an inlet and an outlet in said sidewall of said chamber; a plate extending outward from a bottom edge of said chamber; a set of concentric grooves formed in a bottom surface of said plate, said grooves centered about said chamber, means for applying a vacuum to a first groove and a fourth groove of said set of grooves, said first groove nearest said bottom opening of said chamber; means for supplying an inert gas or said inert gas and a solvent vapor mixture to a second groove and a fifth groove of said set of grooves, said second groove between said first and said fourth groove and said fifth groove outside of said fourth groove; and means for supplying a cleaning fluid to a third groove of said set of grooves, said third groove between said second groove and said fourth groove.