Patent ID: 7928407
Filing Date: 2011-04-19
Classification: G03F

Abstract:
1. A lithographic projection apparatus arranged to project a radiation beam through a liquid onto a substrate, the apparatus comprising a support table configured to hold an object, the object comprising (i) a sensor, or (ii) a substrate, or (iii) a closing plate, or (iv) any combination of (i)-(iii), and a cover plate to cover a gap between the object and the support table, at least part of the cover plate being transparent to the radiation beam and the cover plate being adhered, in use of the apparatus, to the support table and releasably detachable from the support table, wherein the cover plate comprises a sticker configured to cover the gap, the sticker being adhered in use of the apparatus to, or an integral part of, the support table, the object, or both the support table and the object on either side of the gap.