Patent ID: 8119236

Claim:
A dicing die-bonding film having a dicing film having a pressure-sensitive adhesive layer on a base and a die-bonding film provided on the pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer is formed from an acrylic polymer comprising acrylic ester A represented by CH 2 ═CHCOOR 1 (wherein R 1 is an alkyl group having 6 to 10 carbon atoms), acrylic ester B represented by CH 2 ═CHCOOR 2 (wherein R 2 is an alkyl group having 11 carbon atoms or more), a hydroxyl group-containing monomer, and an isocyanate compound having a radical reactive carbon-carbon double bond within a molecular, the compounded ratio of the acrylic ester A and the acrylic ester B is 40 to 10 mol % of the acrylic ester B with respect to 60 to 90 mol % of the acrylic ester A, the compounded ratio of the hydroxyl group-containing monomer is in the range of 10 to 30 mol % with respect to 100 mol % of the total of the acrylic ester A and the acrylic ester B, the compounded ratio of the isocyanate compound is in the range of 70 to 90 mol % with respect to 100 mol % of the hydroxyl group-containing monomer, the pressure-sensitive adhesive layer is cured by ultraviolet ray irradiation, and the die-bonding film is formed from an epoxy resin and is laminated on the pressure-sensitive adhesive layer after the ultraviolet ray irradiation.