摘要 |
A process for electric bonding of an aluminum wire to a contact area which wire, provided with an oxide layer on its outer surface, is wrapped with an insulating lacquer and ultrasonic bonded to said contact area, wherein insulation is removed from the aluminum wire section to be connected to the contact area prior to the ultrasonic bonding process by removing the insulating layer which surrounds the outer surface of the wire with oxide layer by means of an electric plasma. |