Patent ID: 8956917
Filing Date: 2015-02-17
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising: (a) forming cutting grooves in an element formation surface of a semiconductor wafer on which semiconductor elements are formed; (b) applying a protection tape on the element formation surface of the semiconductor wafer; (c) grinding a rear surface of the semiconductor wafer to thin the semiconductor wafer and to divide the semiconductor wafer into a plurality of semiconductor chips on which the semiconductor elements are formed; (d) forming an adhesive layer on the rear surface of the semiconductor wafer; (e) spraying a high-pressure air to the adhesive layer formed on the rear surface of the semiconductor wafer while melting or softening the adhesive layer by heating, to separate and cut the adhesive layer for each of the semiconductor chips; and (f) removing the protection tape.