Patent ID: 9703187
Date: 2017-07-11
CPC Classifications: G03F

Claim:
1. A pellicle comprising: a pellicle membrane having a refractive index n of 1.9 to 5.0 under light with a wavelength of 550 nm, and a pellicle frame to which the pellicle membrane is adhered, wherein: the pellicle membrane contains in its composition 30 to 100% by mole of carbon and 0 to 30% by mole of hydrogen, and in a Raman spectrum of the pellicle membrane, an intensity ratio between a 2D-band and a G-band (intensity of 2D-band / intensity of G-band) is 1 or less, or an intensity of each of the 2D-band and the G-band is 0.