Patent ID: 7763141
Filing Date: 2010-07-27
Classification: H01L,Y10T

Abstract:
1. A method for joining a separating adhesive tape to a protective tape joined to a front face of a semiconductor wafer, the method comprising the steps of: suction-holding a semiconductor wafer against a holding table by an annular convex portion, said annular convex portion being formed along an outer periphery of a back face of the semiconductor wafer so as to surround a back-ground area, such that the holding table is brought into close contact with the entire annular convex portion; supplying fluid from a side of the holding table into a space defined between the back face of the semiconductor wafer and the holding table, for increasing an internal pressure in the space; supplying the separating adhesive tape toward a surface of the protective tape joined to the semiconductor wafer; and moving a joining member, which has a width larger than an outer diameter of the semiconductor wafer, from a first end to a second end of the semiconductor wafer such that the joining member presses the adhesive tape against the surface of the protective tape, for joining the adhesive tape to the surface of the protective tape.