Improved capillary structure design and processing method for fine pitch ball bonding

摘要

Capillary tube 1 for wire bonding 5 having a cross section in a direction perpendicular to the hole 3 and a hole having a long dimension and a short dimension in the direction perpendicular to the long dimension, the capillary tube in the first direction Bonding the wire to one bond pad while oriented in the long dimension (25 to 27 or 35 to 37) to the bond pad, and the bond pad to a capillary tube that can be oriented in the long dimension in the same or perpendicular direction as the first direction Bonding to the bond pad 9 is achieved by bonding the wire to a die immediately adjacent to it.