Patent ID: 7060339

Claim:
A dicing/die-bonding film comprising: a supporting base material, a pressure-sensitive adhesive layer formed on the supporting base material, a die-bonding adhesive layer formed on the pressure-sensitive adhesive layer, said die-bonding adhesive layer being comprised of a work-attaching portion on which a work is to be attached and a no-work-attaching portion other than the work-attaching portion, an interface (A) formed between the work-attaching portion of the die-bonding adhesive layer and a portion (a) of the pressure-sensitive adhesive layer in contact with the work-attaching portion, and an interface (B) formed between a part or a whole of the no-work-attaching portion of the die-bonding adhesive layer and a portion (b) of the pressure-sensitive adhesive layer in contact with the part or the whole of the no-work-attaching portion, wherein releasability between the pressure-sensitive adhesive layer and the die-bonding adhesive layer at the interface (A) is higher than the releasability at the interface (B).