摘要:
A method of obtaining information indicative of the topography of a surface of a flexible substrate, the method including directing a beam of radiation at the surface of the flexible substrate; and detecting changes in intensity distribution, or angle of reflection, of the beam of radiation after the beam of radiation has been reflected from the surface of the substrate to obtain information indicative of the topography of the surface of the flexible substrate.
摘要:
A substrate for use in a lithographic projection apparatus. The substrate includes a sealing coating that covers at least a part of a first interface between two layers on the substrate, or between a layer and the substrate, and does not extend to a central portion of the substrate.
摘要:
A substrate for use in a lithographic projection apparatus. The substrate includes a sealing coating that covers at least a part of a first interface between two layers on the substrate, or between a layer and the substrate, and does not extend to a central portion of the substrate.
摘要:
A sampler, sample holder and an immersion lithographic apparatus comprising a sampler is disclosed. In an embodiment, a sampler is provided to collect particles in an immersion system of a lithographic apparatus. The sampler comprises a holder base having a collector surface. The collector surface is configured to collect and store contaminants. The sampler may be located on a surface of the immersion system so as to collect sample particles by contact of the collector surface with a liquid or with a surface of the immersion system. The sampler may be removable from the immersion lithographic apparatus for inspection.
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 substrate for use in a lithographic projection apparatus. The substrate includes a sealing coating that covers at least a part of a first interface between two layers on the substrate, or between a layer and the substrate, and does not extend to a central portion of the substrate.
摘要:
A method of obtaining information indicative of the topography of a surface of a flexible substrate, the method including directing a beam of radiation at the surface of the flexible substrate; and detecting changes in intensity distribution, or angle of reflection, of the beam of radiation after the beam of radiation has been reflected from the surface of the substrate to obtain information indicative of the topography of the surface of the flexible substrate.
摘要:
A member with a cleaning surface for use in capturing particles in a lithographic apparatus is disclosed. The particles are captured by a plurality of projections which are arranged in a pattern. A sensor can be used to detect contaminant particles in the pattern.
摘要:
A substrate for use in a lithographic projection apparatus. The substrate includes a sealing coating that covers at least a part of a first interface between two layers on the substrate, or between a layer and the substrate, and does not extend to a central portion of the substrate.
摘要:
A member with a cleaning surface for use in capturing particles in a lithographic apparatus is disclosed. The particles are captured by a plurality of projections which are arranged in a pattern. A sensor can be used to detect contaminant particles in the pattern.