Patent ID: 7479317

Claim:
An adhesive sheet roll for wafer processing comprising a base film, radiation curing type adhesive layer, and releasing film in this sequence, wherein the arithmetic average roughness (Ra) of the other surface of the side of the base film and/or releasing film contacting with the radiation curing type adhesive layer is 1 μm or more, wherein the radiation curing type adhesive layer comprises a radical polymerization inhibitor, and wherein the weight of the radical polymerization inhibitor contained in the radiation curing type adhesive layer is more than 10 ppm and less than 1000 ppm, wherein the ten-point average roughness (Rz) of the other surface of the side of the base film and/or releasing film contacting with the radiation curing type adhesive layer is 12 μm or more, and wherein the adhesive sheet roll is configured to suppress radical polymerization chain reaction during storage of the adhesive sheet roll.