Patent ID: 8722184

Claim:
A wafer-adhering adhesive tape having a radiation-curable removable adhesive layer on a surface of a base and a second die-bonding adhesive layer on the radiation-curable adhesive layer, wherein the radiation-curable removable adhesive layer cross-linked by a hardening agent, can be peeled off from the die-bonding adhesive layer by irradiation, wherein, before irradiation, the radiation-curable removable adhesive layer consists of an acrylic-series copolymer and a polymerization initiator, wherein the acrylic-series copolymer has, in a principal chain, at least a radiation-curable carbon-carbon double bond containing group, a hydroxyl group, and a group containing a carboxyl group, respectively, and wherein said radiation-curable removable adhesive layer has a gel fraction of 60% or greater.