Patent ID: 7802715
Filing Date: 2010-09-28
Classification: B23K,B41J,H01L

Abstract:
1. A method of profiling a series of wire bonds between a line of contact pads on a die, and a corresponding set of conductors on a supporting structure, the method comprising the steps of: forming a line of wire bonds using a wirebonder that has a bonding tool for moving between the contact pads and their respective corresponding conductors so as to electrically connect each of the contact pads on the die to a corresponding conductor on the supporting structure with a respective wire bond, each of the wire bonds extending in an arc from the contact pad to the conductor; and, sequentially pushing on each of the wire bonds individually so as to collapse the arc and plastically deform the wire bond into a flatter profile shape, said sequential pushing employing a wire engaging structure on the wirebonder, the wire engaging structure and the bonding tool being synchronized such that the wire engaging structure pushes the wire bond immediately adjacent the wire bond currently being formed by the bonding tool; wherein, the support structure has a chip mounting area for supporting the die, the die having a back surface in contact with the chip mounting area and an active surface opposing the back surface, the active surface having the contact pads, and the chip mounting area being raised relative to the remainder of the support structure such that the contact pads are raised relative to the conductors.