摘要:
A lithographic apparatus that includes a reflector configured to reflect a cleaning beam of radiation projected through a projection system onto an underside of a liquid retrieval system. The construction of the reflector is also described as is a method for irradiating the underside of a liquid supply system for use in cleaning.
摘要:
A lithographic projection apparatus is disclosed which includes a cleaning station. Several embodiments of the cleaning station are disclosed. In an embodiment, measures are taken to avoid contact of a cleaning fluid with the final element of the projection system. In an embodiment, measures are taken to avoid foaming of the cleaning fluid. The use of a thermally isolated island is also disclosed as well as its optimal position.
摘要:
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).
摘要:
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).
摘要:
A lithographic projection apparatus is disclosed which includes a cleaning station. Several embodiments of the cleaning station are disclosed. In an embodiment, measures are taken to avoid contact of a cleaning fluid with the final element of the projection system. In an embodiment, measures are taken to avoid foaming of the cleaning fluid. The use of a thermally isolated island is also disclosed as well as its optimal position.
摘要:
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.
摘要:
A cleaning apparatus to clean a substrate or component of an immersion lithographic apparatus is disclosed. The cleaning apparatus may comprise a plasma radical source, a conduit and a radical confinement system. The plasma radical source may provide a flow of radicals. The conduit may supply radicals from the plasma radical source to the surface to be cleaned. The radical confinement system may direct the radicals to clean a localized portion of the surface. The cleaning apparatus may comprise a rotator and may be configured to clean a substrate edge. An immersion lithographic apparatus comprising the cleaning apparatus to clean a surface is also disclosed. The immersion lithographic apparatus may comprise a substrate table to support a substrate and a fluid confinement structure to at least partly confine immersion fluid between a projection system and a substrate table and/or substrate.
摘要:
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.
摘要:
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.
摘要:
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.