Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of using megasonic waves through a liquid to clean a surface of an immersion lithographic projection apparatus are disclosed. A flow, desirably a radial flow, is induced in the liquid.

Abstract: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of using megasonic waves through a liquid to clean a surface of an immersion lithographic projection apparatus are disclosed. A flow, desirably a radial flow, is induced in the liquid.

Abstract: An immersion lithographic apparatus is described with a drain configured to remove liquid from a gap between an edge of the substrate and the substrate table on which the substrate is supported. The drain is provided with a means to provide liquid to the drain irrespective of the position of the substrate table and/or a means to saturate gas within the drain. Those measures reduce the variations in heat load due to evaporation of liquid in the drain.

Abstract: A cleaning tool to clean a surface of a component of a lithographic apparatus is disclosed. The cleaning tool includes a sonic transducer, a liquid supply device configured to provide liquid to a reservoir between the surface to be cleaned and the sonic transducer, and a liquid outlet configured to remove liquid provided by the liquid supply device, the cleaning tool constructed and arranged such that, in use, liquid flows into the outlet under the influence of gravity.

Abstract: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of using megasonic waves to clean a surface of an immersion lithographic projection apparatus are disclosed.

Abstract: A cleaning tool to clean a surface of a component of a lithographic apparatus is disclosed. The cleaning tool includes a sonic transducer, a liquid supply device configured to provide liquid to a reservoir between the surface to be cleaned and the sonic transducer, and a liquid outlet configured to remove liquid provided by the liquid supply device, the cleaning tool constructed and arranged such that, in use, liquid flows into the outlet under the influence of gravity.

Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of using megasonic waves to clean a surface of an immersion lithographic projection apparatus are disclosed.

Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: A cleaning tool to clean a surface of a component of a lithographic apparatus is disclosed. The cleaning tool includes a sonic transducer, a liquid supply device configured to provide liquid to a reservoir between the surface to be cleaned and the sonic transducer, and a liquid outlet configured to remove liquid provided by the liquid supply device, the cleaning tool constructed and arranged such that, in use, liquid flows into the outlet under the influence of gravity.

Abstract: An immersion lithographic apparatus is cleaned by use of a cleaning liquid consisting essentially of ultra-pure water and (a) a mixture of hydrogen peroxide and ozone, or (b) hydrogen peroxide at a concentration of up to 5%, or (c) ozone at a concentration of up to 50 ppm, or (d) oxygen at concentration of up to 10 ppm, or (e) any combination selected from (a)-(d).

Abstract: A lithographic apparatus is disclosed having an in situ ozonizer, which is used to produce ozone gas, for example, by UV irradiation of an oxygen-containing gas. The thus produced ozone is dissolved in ultra-pure water by contacting the ozone with the ultra-pure water through a permeable membrane.

Abstract: A cleaning tool to clean a surface of a component of a lithographic apparatus is disclosed. The cleaning tool includes a sonic transducer, a liquid supply device configured to provide liquid to a reservoir between the surface to be cleaned and the sonic transducer, and a liquid outlet configured to remove liquid provided by the liquid supply device, the cleaning tool constructed and arranged such that, in use, liquid flows into the outlet under the influence of gravity.

Abstract: A method of removing contamination from an apparatus used in lithography is disclosed. The method includes loading a substrate into the apparatus, the substrate comprising a rigid support layer and a deformable layer provided on the rigid support layer, bringing the deformable layer of the substrate into contact with a surface of the apparatus from which contamination is to be removed, introducing relative movement between the deformable layer and the surface of the apparatus from which contamination is to be removed to dislodge contamination from the surface for removal, and removing the dislodged contamination. Other aspects of the invention are also described and claimed.

Abstract: An immersion lithographic apparatus is described with a drain configured to remove liquid from a gap between an edge of the substrate and the substrate table on which the substrate is supported. The drain is provided with a means to provide liquid to the drain irrespective of the position of the substrate table and/or a means to saturate gas within the drain. Those measures reduce the variations in heat load due to evaporation of liquid in the drain.

Abstract: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of using megasonic waves through a liquid to clean a surface of an immersion lithographic projection apparatus are disclosed. A flow, desirably a radial flow, is induced in the liquid.

Abstract: An immersion lithographic projection apparatus having a megasonic transducer configured to clean a surface and a method of using megasonic waves through a liquid to clean a surface of an immersion lithographic projection apparatus are disclosed. A flow, desirably a radial flow, is induced in the liquid.