Patent ID: 7521122

Claim:
A laminated sheet for adhering to a circuit side of a projected electrode-mounting wafer in a step of grinding a backside of the wafer, wherein the laminated sheet comprises at least: a layer (layer A) contacting with the circuit side, made of a thermosetting resin; a layer (layer B) directly laminated on the layer A, made of a thermoplastic resin having a tensile modulus of from 1 to 300 MPa at 40 ° to 80° C.; and an outermost layer (layer C) directly laminated on the layer B, comprising at least a non-plastic thermoplastic resin layer at 25° C., wherein h, At and Bt satisfy the relationships of: At<h and ( At+Bt )> h, wherein h is a height of the projected electrode, At is thickness of the layer A, and Bt is a thickness of the layer B, wherein the layer C has tensile modulus of from 1000 to 3000 Mpa at 40° to 80 ° C.