摘要:
A system and method that can be used to cover a portion (e.g., a clear aperture) of an optical element (e.g., a lens) during coating of another portion (e.g., a circumferential portion) of the optical element. This can be done to protect the clear aperture during coating of an adhesive protection layer proximate a circumferential edge of the lens without damaging or altering the clear aperture. The method can include the following steps. An optical element is held so that a first portion of the optical element is covered and a second portion of the optical element is exposed. A first coating is provided on the second portion of the optical element. The optical element is released from being held. A second coating is provided on the optical element. The first and second coatings are removed from the second portion of the optical element.
摘要:
A lithographic apparatus is provided in which exposure is carried out by projecting through an aqueous solution of alkali metal halide(s), the solution being in contact with the substrate to be exposed.
摘要:
A lithographic projection apparatus is disclosed for use with an immersion liquid positioned between the projection system and a substrate. Several methods and mechanism are disclosed to protect components of the projection system, substrate table and a liquid confinement system. These include providing a protective coating on a final element of the projection system as well as providing one or more sacrificial bodies upstream of the components. A two component final optical element of CaF2 is also disclosed.
摘要:
A system for tuning the refractive index of immersion liquid in an immersion lithographic apparatus is disclosed. Two or more immersion liquids of different refractive index are mixed together in order to achieve a desired refractive index. Further, the fluids may be conditioned and treated to maintain optical characteristics.
摘要:
An electrostatic clamp for use in a lithographic apparatus includes burls and an electrode surrounded by an insulator and/or a dielectric material between adjacent burls. In an embodiment, two or more layers of dielectric material are provided between adjacent burls and surround an electrode provided between adjacent burls. The electrostatic clamp may be used to clamp an object to an object support in a lithographic apparatus.
摘要:
A system for tuning the refractive index of immersion liquid in an immersion lithographic apparatus is disclosed. Two or more immersion liquids of different refractive index are mixed together in order to achieve a desired refractive index. Further, the fluids may be conditioned and treated to maintain optical characteristics.
摘要:
A lithographic apparatus is provided in which exposure is carried out by projecting through an aqueous solution of alkali metal halide(s), the solution being in contact with the substrate to be exposed.
摘要:
A wafer chuck for use in a lithographic apparatus, which includes a low-thermal expansion glass ceramic substrate, a silicon silicon carbide layer, and a bonding layer comprising silicate having a strength of at least about 5 megapascals, the bonding layer attaching the silicon silicon carbide layer to the substrate is described. Also, a method of forming a wafer chuck for use in a lithographic apparatus, which includes coating a portion of one or both of a low-thermal expansion glass ceramic substrate and a silicon silicon carbide layer with a bonding solution, and contacting the substrate and the silicon silicon carbide layer to bond the substrate and the silicon silicon carbide layer together is described.
摘要:
A wafer chuck for use in a lithographic apparatus, which includes a low-thermal expansion glass ceramic substrate, a silicon silicon carbide layer, and a bonding layer comprising silicate having a strength of at least about 5 megapascals, the bonding layer attaching the silicon silicon carbide layer to the substrate is described. Also, a method of forming a wafer chuck for use in a lithographic apparatus, which includes coating a portion of one or both of a low-thermal expansion glass ceramic substrate and a silicon silicon carbide layer with a bonding solution, and contacting the substrate and the silicon silicon carbide layer to bond the substrate and the silicon silicon carbide layer together is described.
摘要:
Lithographic Apparatus and Device Manufacturing Method A system for tuning the refractive index of immersion liquid in an immersion lithographic apparatus is disclosed. Two or more immersion liquids of different refractive index are mixed together in order to achieve a desired refractive index. Further, the fluids may be conditioned and treated to maintain optical characteristics.