Patent ID: 8304341

Claim:
A method of fixing a chipped work using a dicing die-bonding film, which method comprises: providing a dicing die-bonding film having a pressure-sensitive adhesive layer on a substrate material and a die-bonding adhesive layer on the pressure-sensitive adhesive layer, wherein the die-bonding adhesive layer comprises and acrylic resin wherein the adhesion of the pressure-sensitive adhesive layer to the die-bonding adhesive layer, as determined under the conditions of a peel angle of 15° and a peel point moving rate of 2.5 mm/sec, at 23° C., is different between a region A corresponding to a work attachment region of the die-bonding adhesive layer and a region B corresponding to a part or the whole of a region other than the work attachment region of the die-bonding adhesive layer, and satisfies the following relationship: adhesion of the region A of the pressure-sensitive adhesive layer less than adhesion of the region B of the pressure-sensitive adhesive layer, and the adhesion of the region A of the pressure-sensitive adhesive layer to the die-bonding adhesive layer is not higher than 2.3 N/25 mm at the time of releasing the chipped work together with the die-bonding adhesive layer from the pressure-sensitive adhesive layer; contact-bonding a work onto the die-bonding adhesive layer at the work attachment region; dicing the work into a chipped work; releasing the chipped work together with the die-bonding adhesive layer from the pressure-sensitive adhesive layer; and adhesive-fixing the chipped work via the die-bonding adhesive layer onto a semiconductor element.