摘要:
A support table for a lithographic apparatus, the support table having a support section and a conditioning system, wherein the support section, the conditioning system, or both, is configured such that heat transfer to or from a substrate supported on the support table, resulting from the operation of the conditioning system, is greater in a region of the substrate adjacent an edge of the substrate than it is in a region of the substrate that is at the center of the substrate.
摘要:
A support table for a lithographic apparatus, the support table having a support section and a conditioning system, wherein the support section, the conditioning system, or both, is configured such that heat transfer to or from a substrate supported on the support table, resulting from the operation of the conditioning system, is greater in a region of the substrate adjacent an edge of the substrate than it is in a region of the substrate that is at the center of the substrate.
摘要:
A lithographic apparatus includes an illumination system configured to condition a radiation beam; a support constructed to support a patterning device, the patterning device being capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam; a mirror block provided with a substrate table constructed to hold a substrate; and a projection system configured to project the patterned radiation beam onto a target portion of the substrate, wherein the mirror block is constructed and arranged to reduce slip between the mirror block and the substrate table. Slip can occur if the acceleration of the mirror block is high and the substrate table slips locally with respect to the mirror block. Slip may lead to exposure errors since the position of the substrate is no longer determined with the desired accuracy.
摘要:
A substrate table is disclosed in which heaters are provided to account for a heat load which may be applied to the substrate. The heaters are grouped in segments to improve control. A temperature sensor per segment may be provided. The temperature sensor may be embedded in the substrate table.
摘要:
A substrate table is disclosed in which heaters are provided to account for a heat load which may be applied to the substrate. The heaters are grouped in segments to improve control. A temperature sensor per segment may be provided. The temperature sensor may be embedded in the substrate table.
摘要:
A substrate table is disclosed in which heaters are provided to account for a heat load which may be applied to the substrate. The heaters are grouped in segments to improve control. A temperature sensor per segment may be provided. The temperature sensor may be embedded in the substrate table.