SUBSTRATE HOLDER AND LITHOGRAPHIC APPARATUS
摘要:
Substrate holder (100) for use in a lithographic apparatus, the substrate holder comprising a main body having a first surface and a second surface opposite the first surface.
A plurality of first burls are provided on the first surface, the first burls having end surfaces to support a substrate. A plurality of second burls are provided on the second surface to support the substrate holder on a structure. The plurality of first burls each comprise a lower body portion protruding from the first surface and an upper body portion above the lower body portion, the lower body portions comprise a different material from the upper body portions, and the upper body portions comprise diamond-like carbon.
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