CAPILLARY WITH CONTAINED INNER CHAMFER

摘要

A bonding tool for bonding a fine wire to bonding pads having a very fine pitch is disclosed. The bonding tool comprises a working tip (404) at an end thereof. The working tip includes an annular chamfer (413) formed at an inner portion of the end of the working tip, the inner annular chamfer having an angle (414) of less than about 60 degrees. The inner annular chamfer is coupled to a lower portion of a cylindrical passage formed (424) in the bonding tool.