Patent ID: 7504316
Filing Date: 2009-03-17
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device; the wafer comprising a semiconductor wafer and a double-side adhesive sheet having, on at least one surface thereof, a peelable adhesive layer, wherein the peelable adhesive layer is stuck to a front face of the semiconductor wafer and the reinforcing-plate is fixed to the other adhesive layer of the double-side adhesive sheet; the reinforcing-plate being separated together with the double-side adhesive sheet from the reinforced semiconductor wafer by the peeling-effect of the peelable adhesive layer of the double-side adhesive sheet; in which the reinforcing-plate is separated from an arbitrarily selected edge of the semiconductor wafer toward an edge thereof different from the above-mentioned edge; and the semiconductor wafer, from which the reinforcing-plate has been separated, is transferred to a dicing step wherein the semiconductor wafer is divided into chips.