Lithographic apparatus, device manufacturing method, and slide assembly
First Claim
1. A slide assembly comprising:
- a base including a running surface,a slide member configured to move over the running surface, anda bearing system configured to create a distance between the slide member and the running surface, the bearing system comprising;
(a) a magnetically active system configured to provide a magnetic attraction force in a first direction, said first direction being at least substantially perpendicular to the running surface, and(b) an air bearing system configured to provide a repelling force in a second direction, said second direction being opposite to the first direction, the magnetically active system and the air bearing system being adapted to cooperate in establishing the distance between the slide member and the running surface,wherein the air bearing system comprises a plurality of air bearing elements, said plurality of air bearing elements arranged to substantially enclose an area devoid of air bearing elements in which substantially the entire magnetically active system is arranged.
1 Assignment
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Accused Products
Abstract
A lithographic apparatus includes a slide assembly, having a base, which base has a running surface, a slide member adapted to move over the running surface, and a bearing system configured to create a distance between the slide member and the running surface. The bearing system includes a first force generating device configured to provide a first force in a first direction, the first direction being substantially perpendicular to the running surface, and a second force generating device configured to provide a second force in a second direction, the second force being opposite to the first direction. The first and second force generating devices are adapted to cooperate in establishing the distance between the slide member and the running surface. The second force generating device includes a plurality of force generating elements defining an area between them, in which area the first force generating device is arranged.
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Citations
22 Claims
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1. A slide assembly comprising:
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a base including a running surface, a slide member configured to move over the running surface, and a bearing system configured to create a distance between the slide member and the running surface, the bearing system comprising; (a) a magnetically active system configured to provide a magnetic attraction force in a first direction, said first direction being at least substantially perpendicular to the running surface, and (b) an air bearing system configured to provide a repelling force in a second direction, said second direction being opposite to the first direction, the magnetically active system and the air bearing system being adapted to cooperate in establishing the distance between the slide member and the running surface, wherein the air bearing system comprises a plurality of air bearing elements, said plurality of air bearing elements arranged to substantially enclose an area devoid of air bearing elements in which substantially the entire magnetically active system is arranged. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A lithographic apparatus comprising:
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an illumination system configured to condition a beam of radiation; a support structure configured to support a patterning device, the patterning device configured to impart the beam of radiation with a pattern in its cross section; a substrate table configured to hold a substrate; a projection system configured to project the patterned beam of radiation onto a target portion of the substrate; and a slide assembly comprising; (a) a base including a running surface, (b) a slide member configured to move over the running surface, and (c) a bearing system configured to create a distance between the slide member and the running surface, the bearing system comprising; (i) a magnetically active system configured to provide a magnetic attraction force in a first direction, said first direction being at least substantially perpendicular to the running surface, and (ii) an air bearing system configured to provide a repelling force in a second direction, said second direction being opposite to the first direction, the magnetically active system and the air bearing system being adapted to cooperate in establishing the distance between the slide member and the running surface, wherein the air bearing system includes a plurality of air bearing elements, said plurality of air bearing elements arranged to substantially enclose an area devoid of air bearing elements in which substantially the entire magnetically active system is arranged. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A device manufacturing method comprising:
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providing a beam of radiation; patterning the beam of radiation with a pattern in its cross-section; projecting the patterned beam of radiation onto a target portion of the layer of radiation-sensitive material; creating a distance between a running surface of a base and a slide member which carries an object, to allow movement of the slide member over the running surface using a bearing system, wherein the bearing system comprises a magnetically active system configured to provide a magnetic attraction force in a first direction, said first direction being substantially perpendicular to the running surface, and an air bearing system configured to provide a repelling force in a second direction, said second direction being opposite to the first direction, the magnetically active system and the air bearing system being adapted to cooperate in establishing the distance between the slide member and the running surface, and wherein the air bearing system comprises a plurality of air bearing elements, said air bearing elements arranged to substantially enclose an area devoid of air bearing elements in which substantially the entire magnetically active system is arranged. - View Dependent Claims (14, 15, 16)
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17. A bearing system configured to support a slide member over a running surface of a base, comprising:
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a magnetically active system configured to provide a magnetic attraction force in a first direction, said first direction being substantially perpendicular to said running surface; and an air bearing system configured to provide a repelling force in a second direction, said second direction being opposite to the first direction, wherein the air bearing system comprises a plurality of air bearing elements, said air bearing elements arranged to substantially enclose an area devoid of air bearing elements in which substantially the entire magnetically active system is arranged such that an action line of the first force substantially coincides with an action line of the second force. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification