Patent ID: 7534498

Claim:
A laminated body comprising in the following order: a substrate to be ground; wherein said substrate is a silicon wafer; a joining layer in contact with said substrate; a photothermal conversion layer comprising a light absorbing agent and a heat decomposable resin disposed beneath and in contact with the joining layer; and a light transmitting support disposed beneath the photothermal conversion layer, wherein the joining layer is an adhesive selected from the group consisting of rubber-base adhesives; one-part thermosetting adhesives based on epoxy or urethane; two-part thermosetting adhesives based on epoxy, urethane, or acryl; hot-melt adhesives based on acryl or epoxy; ultraviolet-curable adhesives based on acryl or epoxy; visible light-curable adhesives based on acryl or epoxy; electron beam-curable adhesives based on acryl or epoxy; and water dispersion adhesives.