Patent ID: 7527186

Claim:
A system for determining wire bonding tool placement for use with a wire bonder and an optical imager, the system comprising: a wire bonding tool for forming wire bonds on the wire bonding machine; an optical imager; a prism disposed below the optical imager and the wire bonding tool; and at least one lens positioned between the prism and a lower portion of the wire bonding tool along a first optical axis, the at least one lens and the prism defining an object plane between the at least one lens and the lower portion of the wire bonding tool, the at least one lens being positioned between the prism and the optical imager along a second optical axis, the at least one lens and the prism defining an image plane between the at least one lens and the optical imager, wherein the optical imager is configured to receive indirect images corresponding to a position of the wire bonding tool via the at least one lens and the prism for determining wire bonding tool placement.