600V-30A 4H-SiC JBS and Si IGBT Hybrid Module
600V-30A 4H-SiC Junction Barrier Schottky（JBS）diodes were designed and fabricated using SiC epitaxy and device technology. SiC JBS diodes were packaged in Si IGBT module，and switching measurements were done at 125°C. As free-wheeling diode for Si IGBT, 600V SiC JBS diode was compared to 600V ultra-fast diode from International Rectifier. SiC diode achieved 90% recovery loss reduction and corresponding IGBT showed 30% lower turn-on loss. However, SiC JBS diode has larger on-state voltage drop due to small chip area. On-state power loss will be lowered by increasing SiC chip area.
Edouard V. Monakhov, Tamás Hornos and Bengt. G. Svensson
Y. Z. Li et al., "600V-30A 4H-SiC JBS and Si IGBT Hybrid Module", Materials Science Forum, Vols. 679-680, pp. 714-717, 2011