Patent ID: 7654434
Filing Date: 2010-02-02
Classification: B23K,H01L

Abstract:
1. A method for bonding a semiconductor element positioned on a substrate, the substrate being positioned on a base which is electrically insulated from a bonding tool, the method comprising: coupling a first terminal of a power source to a terminal of the bonding tool and a second terminal of the power source to a terminal of the base so that the substrate is capacitively coupled to the base and the base is capacitively coupled to the bonding tool to form an overall capacitance between the semiconductor element and the bonding tool; actuating the bonding tool to connect a contact area of the semiconductor element to a terminal area of the substrate by means of a bonding wire element; and measuring an electrical variable influenced by the semiconductor element to determine whether the overall capacitance changes while the contact area is being connected to the terminal area.