Patent ID: 8114759

Claim:
A dicing method for a semiconductor wafer having a die attach film, comprising: a first laminating step of laminating the die attach film to an adhesive sheet formed by laminating a UV-curable adhesive comprising a (meth)acrylic acid ester polymer, a urethane acrylate oligomer having at least 4 vinyl groups, a UV polymerization initiator and a silicone graft polymer onto a substrate film; a second laminating step of laminating the semiconductor wafer onto an opposite side of the die attach film laminated to the adhesive sheet; a UV irradiation step of irradiating the UV-curable adhesive with UV rays; and a dicing step of dicing the semiconductor wafer and die attach film laminated to the adhesive sheet, wherein the content of the silicone graft polymer is at least 0.1 parts by mass and at most 10 parts by mass with respect to 100 parts by mass of the (meth)acrylic acid ester polymer.