Patent Number: 056169272
Section: claims

1. A frame-supported pellicle which is an integral body comprising: (a) a frame made from a rigid material having substantially parallel end surfaces;  (b) a transparent film of a synthetic resin spread over and adhesively bonded to one end surface of the frame in a slack-free fashion; and  (c) a layer of a pressure-sensitive adhesive on the other end surface of the frame, the adhesive bonding strength of the pressure-sensitive adhesive being reducible by heating or by irradiating with light. 2. The frame-supported pellicle as claimed in claim 1 in which the adhesive bonding strength of the pressure-sensitive adhesive is reducible by heating at a temperature in the range from 70.degree. C. to 150.degree. C. 3. The frame-supported pellicle as claimed in claim 1 in which the adhesive bonding strength of the pressure-sensitive adhesive is reducible by the irradiation with ultraviolet light in an irradiation dose of 200 mJ/cm.sup.2 or larger.