Patent ID: 7897000

Claim:
A method of bonding an adhesive film for die bonding to the rear surface of a wafer having a notch, and a plurality of devices formed on its front surface, comprising: a wafer-holding step for holding the front surface of the wafer on the holding surface of a chuck table; an adhesive film supplying step for supplying the adhesive film onto the rear surface of the wafer held on the chuck table; an alignment step of aligning a pressing-roller having an axial axis so that the axis of the pressing-roller is parallel with a straight line that connects the center of the wafer and bisects the notch; and a pressing-roller rolling step for rolling the pressing-roller while pressing it against the adhesive film to bond the adhesive film to the rear surface of the wafer, and while maintaining the parallel relationship between the axis of the pressing-roller and the straight line connecting the center of the wafer and bisecting the notch.