Patent ID: 7292310
Filing Date: 2007-11-06
Classification: G03F

Abstract:
1. A lithographic apparatus comprising: an illumination system for conditioning a beam of radiation; a support structure for supporting a patterning device, the patterning device serving to impart the beam of radiation with a pattern in its cross-section; a substrate table for holding a substrate; a projection system for projecting the patterned beam onto a target portion of the substrate; and at least one fastener for fastening a first part of the apparatus to a second part of the apparatus, said first apparatus part comprising an opening for receiving part of said fastener, said second apparatus part comprising an opening for receiving another part of said fastener, said fastener comprising a shaft having a first threaded section and a second threaded section, wherein the first threaded section and the second threaded section have different pitches, and wherein the fastener does not comprise an integral widened head part extending from one end of the shaft.