Patent ID: 6977024

Claim:
A process for producing a semiconductor device, comprising: connecting a semiconductor chip or a semiconductor wafer and an adhesive sheet to one another, the adhesive sheet including a base material, an adhesive agent layer formed on the base material and conductor bodies buried in the adhesive agent layer in an arrangement corresponding to electrodes of a semiconductor integrated circuit formed on the semiconductor chip or the semiconductor wafer and electrodes of a plurality of semiconductor integrated circuits formed on the semiconductor wafer and electrodes of a substrate, wherein the adhesive agent layer is constituted by a tacky adhesive agent, and the tacky adhesive agent has gradable adhesiveness, and the adhesive sheet is sized to correspond to the semiconductor chip or the semiconductor wafer, so that the electrodes of the semiconductor integrated circuit formed on the semiconductor chip or the semiconductor wafer or the electrodes of the plurality of semiconductor integrated circuits formed on the semiconductor wafer and the conductor bodies of the adhesive sheet can be electrically connected, wherein the adhesive agent includes a (meth)acrylate copolymer having a weight-average molecular weight of not less than 30,000, an epoxy resin having a weight-average molecular weight of 100 to 10,000, a photopolymerizable low molecular compound and thermal activation latent epoxy resin curing agent; removing the base material from the adhesive agent layer of the adhesive sheet; aligning the adhesive agent layer with the substrate so that the conductor bodies buried in the adhesive agent layer and the electrodes of the substrate can be electrically connected; and adhering the semiconductor chip or the semiconductor wafer and the substrate to one another.