Patent ID: 8267582
Filing Date: 2012-09-18
Classification: B82Y,G03F,H01J,H01L

Abstract:
1. A table for vacuum application guided by means of aerostatic bearing elements, comprising: a supporting structure; a tabletop displaceable by slides in an x-direction and a y-direction with respect to the supporting structure; the slides coupled to the aerostatic bearing elements and being guided by the aerostatic bearing elements along guide rails; feed lines for supplying a gas for operation of the aerostatic bearing elements; suction lines for removing the gas, the suction lines comprising at least one variable-length line arrangement comprising a first pipe member and a second pipe member moving one inside another without contacting one another; and a sealing system being arranged around the first pipe member with at least one sealing gap between the first pipe member and the sealing system, the sealing gap being in a range of 20 μm to 60 μm, the first pipe member penetrating the second pipe member, the sealing system being attached to an end of the second pipe member.