CoolSiC™ 650V Schottky 6th Generation Diodes Infineon CoolSiC™ 650V Schottky 6th Generation Diodes feature a proprietary diffusion soldering process, a more compact design, thin-wafer technology, and a novel Schottky metal system. The design of this Infineon series results in improved efficiency over all load conditions, resulting from a lower figure of merit (Qc x VF). CoolSiC Generation 6 complements the 600V and 650V CoolMOS™ 7 families, meeting the most stringent application requirements in this voltage range.