Patent ID: 7315346
Filing Date: 2008-01-01
Classification: B08B,G03F

Abstract:
1. A lithographic projection apparatus comprising: a support structure constructed to support a patterning device, said patterning device being configured to pattern a beam of radiation according to a desired pattern; a substrate holder constructed to hold a substrate; a projection system constructed and arranged to project the patterned beam onto a target portion of the substrate; and a downstream radical source having a tube connected to a gas supply and configured to provide a beam of radicals directed onto a surface of a component to be cleaned, wherein the radicals are generated within a flow of gas from the gas supply in the tube, and wherein the tube of the radical source is constructed and arranged to be moved relative to the surface to be cleaned and/or the component is constructed and arranged to be moved relative to the tube of the radical source so that the beam of radicals is incident on the surface to be cleaned.