Patent ID: 7958628

Claim:
A method of bonding a semiconductor die, comprising: providing a die bonding tool having a shank and suction part, the shank having a conduit for drawing a vacuum from a first end of the shank, the suction part being disposed on a second end of the shank and having a die contacting surface, the die contacting surface having a flat portion proximate to a center area of the suction part and a convex portion extending from the flat portion to an outer area of the suction part, the suction part further including an opening on the flat portion and openings on the convex portion, the openings providing pneumatic communication between the conduit of the shank and the die contacting surface; disposing the die contacting surface on the semiconductor die; and elastically deforming the suction part so that the convex portion and associated openings flatten to be planar with the flat portion upon application of pressure to the shank to bond to the semiconductor die.