Patent ID: 6869869

Claim:
A method of electrically connecting a first plurality of bonding pads of a semiconductor die to a second plurality of bonding pads located on lead fingers of a lead frame of a semiconductor device, the method comprising: storing data indicative of (i) the shape and location of at least one eyepoint features of a lead paddle of an exemplary lead frame adapted to receive a semiconductor die (ii) the relative location between the at least one eyepoint feature of the lead paddle and the first plurality of bonding pads of a semiconductor die positioned on the exemplary lead frame and (iii) the relative location of a second plurality of bonding pads from the at least one eyepoint feature; obtaining an image of a second lead frame corresponding to the exemplary lead frame; identifying the location of at least one eyepoint feature formed on a die paddle of the second lead frame adapted to receive the semiconductor die wherein the location of at least one eyepoint feature is determined through pattern recognition of the obtained image of the second lead frame to recognize an edge of the at least one eyepoint image and then matching the recognized edge of the at least one eyepoint image to the corresponding edge of the eyepoint image of the exemplary lead frame to determine the position of the at least one eyepoint feature; determining the relative locations of the first and second plurality of bonding pads from the position of the eyepoint feature located on the die paddle of the lead frame by using the stored data indicative of the relative positions between the eyepoint feature of the lead paddle and the first plurality of bonding pads and the second plurality of bonding pads from the exemplary lead frame; and; directing a wire bonding device to form wire bonds between the first and second pluralities of bonding pads using the determined relative locations of the second plurality of bonding pads.