Abstract:
PROBLEM TO BE SOLVED: To provide a liquid supply system continuously operating irrespective of changes in the scanning direction of a substrate by a projection system, while ensuring complete renewing of a liquid reservoir. SOLUTION: In a scanning-type immersion lithography apparatus, an immersion liquid is supplied by one side of space between the projection system and the substrate, and is discharged at the other side so that the liquid flow is almost perpendicular to the scanning direction. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A substrate holder (100) for a lithographic apparatus has a main body having a thin-film stack (110) provided on a surface thereof. The thin-film stack forms an electronic or electric component such as an electrode, a sensor, a heater, a transistor or a logic device, and has a top isolation layer. A plurality of burls (106) to support a substrate (W) are formed on the thin-film stack or in apertures of the thin-film stack.
Abstract:
A radiation source comprising a fuel source configured to deliver fuel to a location from which the fuel emits EUV radiation. The radiation source further comprises an immobile fuel debris receiving surface provided with a plurality of grooves. The grooves have orientations which are arranged to direct the flow of liquid fuel under the influence of gravity in one or more desired directions.
Abstract:
Disclosed is a substrate support for an apparatus of the type which projects a beam of EUV radiation onto a target portion of a substrate (400). The substrate support comprises a substrate table constructed to hold the substrate, a support block (420) for supporting the substrate table, and a cover plate (450') disposed around the substrate table. The top surface of the cover plate and the top surface of a substrate mounted on the substrate table are all substantially at the same level. At least one sensor unit (430) is located on the substrate support and its top surface is also at the same level as that of the cover plate and substrate. Also disclosed is an EUV lithographic apparatus comprising such a substrate support.
Abstract:
A liquid supply system for an immersion lithographic apparatus provides a laminar flow of immersion liquid between a final element of the projection system and a substrate. A control system minimizes the chances of overflowing and an extractor includes an array of outlets configured to minimize vibrations. [Figure No.1]
Abstract:
A reticle exchange unit for moving a reticle (MA) in a lithographic apparatus is disclosed. The surface of the reticle (MA) is protected by a pellicle attached thereto by a gas permeable pellicle frame. The reticle exchange unit includes a reticle preparation chamber (28), a reticle transport unit (26) arranged to cause a plurality of exposed gas permeable parts of the pellicle frame to face an interior of the reticle preparation chamber (28), and a purge gas pressure (282) and evacuating pressure supply (280) arrangement coupled to the reticle preparation chamber (28) and arranged to provide, alternately, a purge gas pressure and evacuating pressure that is lower than the purge gas pressure to the reticle preparation chamber (28) when the exposed gas permeable parts of the pellicle frame are facing the interior of the reticle preparation chamber (28), so that gas flows through the pellicle frame, alternately, into and out of a pellicle space between the pellicle and the reticle (MA).
Abstract:
In a scanning immersion lithographic apparatus, immersion liquid is supplied on one side of the space between the projection system and the substrate and drained on the other side so that the flow of liquid is substantially perpendicular to the scan direction.
Abstract:
A lithographic projection apparatus is disclosed that includes a table, a shutter member, a fluid handling structure, and a fluid extraction system. The fluid handling structure may be configured to supply and confine liquid between a projection system and (i) a substrate, or (ii) the table, or (iii) a surface of the shutter member, or (iv) a combination selected from (i)- (iii). The surface of the shutter member may adjoin and be co-planar with a surface of the table. The surfaces of the shutter member and the table may be spaced apart by a gap. The fluid extraction system may be configured to remove liquid from the gap.
Abstract:
A lithographic apparatus comprising: an illumination system (IL) configured to condition a radiation beam (PB); a support (MT) constructed to support a patterning device (MA), the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a substrate table (WT) constructed to hold a substrate (W); a projection system (PL) configured to project the patterned radiation beam onto a target portion of the substrate; a liquid supply system (130) configured to at least partly fill a space (25) between a final element of said projection system and said substrate with liquid; a seal member (12) arranged substantially to contain said liquid within said space between said final element of the projection system and said substrate; and elements (30,50,60,120,140) to control and/or compensate for evaporation of immersion liquid from said substrate.