摘要 |
A mask for a lithographic apparatus is disclosed, the mask having a patterned region bearing a pattern to be transferred onto a substrate and a border surrounding the patterned region, wherein at least part of the border has a plurality of elements, the dimensions of the elements being such that, during use, they would not be resolved at the substrate. Also, a lithographic apparatus is disclosed, the apparatus having a projection system, a substrate table arranged to hold a substrate, and a patterning device having a patterned region which bears a pattern to be transferred using a radiation beam via the projection system onto the substrate, at least part of a border surrounding the patterned region comprising a plurality of elements arranged to direct radiation onto the substrate, the dimensions of the elements such that, during use, they are not resolved at the substrate.
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