Patent ID: 8100317

Claim:
A method of teaching an eyepoint for a wire bonding operation, the method comprising the steps of: (1) selecting a group of shapes from a region of a semiconductor device for use as an eyepoint, the group of shapes including at least one of (a) bond pad shapes, (b) fiducial shapes, and (c) circuitry shapes; (2) teaching the eyepoint to a wire bonding machine using at least one of (a) a sample semiconductor device, or (b) predetermined data related to the semiconductor device, the teaching step including defining locations of each of the shapes with respect to one another to bind the selected shapes together as the eyepoint; (3) scanning a region of another semiconductor device using a vision system of a wire bonding machine to locate a feature of the another semiconductor device corresponding to the taught eyepoint; and (4) assigning a score to the another semiconductor device by comparing the taught eyepoint to the feature located at the scanned region.