Patent ID: 7986034

Claim:
A method for producing a power semiconductor module, the method comprising: mechanically and electrically connecting a first contact end of a contact element of the power semiconductor module to a first contact region of a power semiconductor circuit of the power semiconductor module via ultrasonic welding, thereby forming a first contact; and joining a further contact end of the contact element with a further contact region of the semiconductor circuit via ultrasonic welding, thereby forming a further contact electrically and mechanically connected to the first contact; wherein the contact element is a current tap made of solid copper or substantially copper-containing alloy with a material thickness between approximately 0.1 mm and approximately 3.0 mm and a current-carrying capacity between approximately 50 A and approximately 2000 A; wherein at least one of the contact regions is formed by a copper or substantially copper-containing layer of a direct copper bonding DCB substrate, the layer having a material thickness between approximately 0.1 mm and approximately 1.0 mm; wherein the ultrasonic welding is performed via a sontrode with an ultrasonic welding power between approximately 300 W and 10 kW and a joining force between approximately 500 N and 3500 N.