| CPC G03F 1/64 (2013.01) [G03F 1/24 (2013.01); G03F 7/70983 (2013.01)] | 20 Claims | 

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               1. A pellicle frame attachment apparatus comprising: 
            a pellicle assembly handling apparatus configured to handle a pellicle assembly and comprising support arms configured to grip and hold the pellicle assembly; 
                a patterning device handling apparatus configured to handle a patterning device and comprising support arms configured to grip and hold the patterning device; and 
                a rail, 
                wherein the pellicle assembly handling apparatus is supported by and is movable in a direction relative to the rail, wherein the patterning device handling apparatus is supported by and is movable in the same direction relative to the rail, and wherein the relative movement between the pellicle assembly handling apparatus and the patterning device handling apparatus changes a proportion of overlap between the patterning device and the pellicle assembly. 
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