Overview on Advanced Copper Inlay Technologies for power electronics and detailed introduction of Etched Inlay Technology - a new approach for PCBs in power electronics of Schweizer Electronic AG. It combines highest ampacity with excellent thermal management and maximum design flexibility. This technology is compared to state-of-the-art power electronic PCB solutions regarding thermal resistance and current carrying capacity. Market-based references, performance measurements as well as details on design flexibility and manufacturing are presented.