Patent ID: 7432023

Claim:
A method for producing a pellicle film comprising at least: dissolving a raw material of a pellicle film in a solvent to prepare an application liquid, coating a substrate with the application liquid using a die coating machine and with an amount of an application liquid being in the range: 0.9 ×V 1 <V< 1.1 ×V 1 ( V 1 =S×t /( D /100)) V (m 3 ): an amount of an application liquid S (m 2 ): an area of a substrate t (m): a film thickness after drying D (%): a concentration of application liquid, drying the substrate to which the application liquid is applied; to form the pellicle film with an area of 1000 cm 2 or more and a film thickness distribution after drying of±10% or less, and adhering the pellicle film to a jig for producing a pellicle.