A wafer chuck for use in a lithographic apparatus, which includes a
low-thermal expansion glass ceramic substrate, a silicon silicon carbide
layer, and a bonding layer comprising silicate having a strength of at
least about 5 megapascals, the bonding layer attaching the silicon
silicon carbide layer to the substrate is described. Also, a method of
forming a wafer chuck for use in a lithographic apparatus, which includes
coating a portion of one or both of a low-thermal expansion glass ceramic
substrate and a silicon silicon carbide layer with a bonding solution,
and contacting the substrate and the silicon silicon carbide layer to
bond the substrate and the silicon silicon carbide layer together is
described.