Power modules are used in a variety of applications. Among other uses they serve as components in drive and power-supply systems in locomotives, in wind turbines as well as in automobiles. With the advent of hybrid-vehicle engineering, these components have become indispensible for the automotive industry.
The advantages of the ultrasonic welding technique: low contact resistance, high current-carrying capacity thermally and electrically stabile joints as well as good potential for automation come fully into play here and lead to increased performance and longer useful life of the modules.
A further benefit in the automotive field is that an additional cooling circuit now becomes unnecessary, owing to the increased permissible temperature of the power module.