Patent ID: 7975901
Filing Date: 2011-07-12
Classification: B23K,H01L

Abstract:
1. A bonding apparatus for bonding a wire inserted through a bonding tool to a bonding target, the bonding apparatus comprising: a capillary configured as the bonding tool; a bonding arm for bonding the wire to the bonding target by means of the capillary, the bonding arm being provided with the capillary at one end thereof; a chamber for maintaining an inert gas atmosphere by supplying the inert gas into the chamber, the chamber being mounted on a pedestal and has a box shape covering a bonding stage and a carriage path; a first plasma torch for performing a surface treatment of the bonding target that is stopped at a cleaning point, to irradiate gas plasma thereto, the first plasma torch being attached to an upper plate of the chamber over the cleaning point in such a manner as to be substantially perpendicular to the bonding target; a second plasma torch for performing a surface treatment of one or both of an initial ball and a wire at a tip end of the capillary that is positioned inside the chamber, to irradiate gas plasma thereto, the second plasma torch being attached to the upper plate of the chamber over the bonding stage in such a manner as to be substantially parallel to the bonding surface of the bonding stage; and a bonding unit for bonding surface-treated one or both of the initial ball and the wire on the surface-treated bonding target in the chamber, the bonding unit being configured to comprise a driving mechanism for moving the capillary in an XY-direction along the bonding surface of the bonding target and a Z-direction toward and away from the bonding target.