Patent ID: 8273507

Claim:
A pellicle for lithography comprising a pellicle frame of which at least one side has a length not smaller than 300 mm, a pellicle membrane bonded on a first frame face of said pellicle frame by means of a membrane-bonding adhesive, and a mask-bonding adhesive layer attached to a second frame face of said pellicle frame, characterized in that said pellicle frame is chamfered along each of its edges where said first frame face joins an inner side wall of the pellicle frame or an outer side wall of the pellicle frame and along each of its edges where said second frame face joins the inner side wall of the pellicle frame or the outer side wall of the pellicle frame, and in that the chamfer made along those edges where said first frame face joins the outer side wall of the pellicle frame has a chamfer face size greater than C:0.01 mm but not greater than C:0.12 mm.