Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus that reduces degradation of a seal between a cover and an object, such as a substrate, and/or a table, such as a substrate table.SOLUTION: Provided is a method and apparatus to clean a cover to seal a gap between an object located in a recess and the upper surface of a table outside of the recess. In-line and off-line arrangements are disclosed. Cleaning can be carried out using abrasion, UV radiation or flushing with a cleaning fluid, for example.
Abstract:
PROBLEM TO BE SOLVED: To provide a substrate table that can reduce or eliminate the effects of a thermal load in order to avoid deformation (e.g., expansion or contraction) of a substrate and/or substrate table.SOLUTION: There is provided a substrate table to support a substrate on a substrate supporting area, the substrate table having a heat transfer fluid channel at least under the substrate supporting area, and a plurality of heaters and/or coolers to thermally control the heat transfer fluid in the channel at a location under the substrate supporting area.
Abstract:
PROBLEM TO BE SOLVED: To provide a system which reduces defects by improving stability of a meniscus of immersion exposure. SOLUTION: The lithographic apparatus includes a fluid handling structure configured such that a space adjoining a substrate table and/or an upper-part surface of a substrate arranged in a recess of the substrate table includes immersion fluid, a cover 25 including a plane-shaped body extending around the substrate from the upper-part surface to a peripheral part of an upper-part principal surface of the substrate so as to cover a gap between an edge of the recess and an edge of the substrate during use, and an immersion fluid film disrupter configured to destroy formation of an immersion fluid film between an edge 143 of the cover and the immersion fluid included in the fluid handling structure during a period of movement of the substrate table relative to the fluid handling structure. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce or remove the risk of focusing defects, and to maintain or increase throughput. SOLUTION: A liquid handling structure for a lithographic apparatus comprises a droplet controller configured to allow a droplet of immersion liquid to be lost from the handling structure and to prevent the droplet from colliding with the meniscus of the confined immersion liquid. The droplet controller may comprise gas knives arranged to overlap to block an incoming droplet. There may be extraction holes lined up with gaps between gas knives to extract liquid that passes through the gap. A droplet is allowed to escape through the gaps. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a lithography apparatus for reducing the possibility of, for example, a leak of drops from an immersion space or generation of air bubbles into the immersion space. SOLUTION: An immersion lithography apparatus is disclosed. The apparatus has: a fluid handling system for supplying an immersion fluid between a projection system final component and a surface having a characteristic portion in a cross section thereof; and an adjustment fluid source for locally changing the composition of the immersion fluid such that at least surface tension of the immersion fluid locally decreases when the meniscus of the immersion fluid contacts the characteristic portion. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus capable of controlling the movement of an immersion fluid. SOLUTION: In an all wet lithography apparatus, the immersion liquid can fall from an edge of a substrate table. The immersion liquid moves with the substrate table during exposure. As a consequence of the movement of the immersion liquid, disturbance and/or dewetting may occur. A geometrical shape of the substrate table is proposed to reduce the disturbance and/or dewetting. An edge profile of a cross section of the substrate table and/or a planar shape of the substrate table are considered. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
A support apparatus for a lithographic apparatus has an object holder and an extraction body radially outward of the object holder. The object holder is configured to support an object. The extraction body includes an extraction opening configured to extract fluid from a top surface of the support apparatus. The extraction body is spaced from the object holder such that the extraction body is substantially decoupled from the object holder. The extraction body comprises a projection configured such that it surrounds the object holder and such that, in use, a layer of liquid is retained on the projection and in contact with an object supported on the object holder.
Abstract:
A substrate holder for a lithographic apparatus has a planarization layer provided on a surface thereof. The planarization layer provides a smooth surface for the formation of a thin film stack forming an electronic component. The thin film stack comprises an (optional) isolation layer, a metal layer forming an electrode, a sensor, a heater, a transistor or a logic device, and a top isolation layer. Fig. 20