Implementation of monolithic multiple vertical power diodes in a multiphase converter

In this paper, an implementation of monolithic multiple power diodes into a multiphase converter structure with coupled inductors is presented. Advantages of interleaved converters are focused on filtering reduction while increasing the number of needed power devices. The large number of smaller active devices is one of the most important issues in these converter topologies. In this context, a concept based on the monolithic integration of multiple power diodes is developed. Reliability and cost effective solutions are the driving criteria to develop the assembly, the packaging and the interconnections of power devices at wafer level. The functionality of this structure is experimentally tested and validated. Finally, experimental results are presented and discussed.