| 1993 | | First SiC JFET | | 1995 |
| First high quality SiO2 film on SiC (Ebr > 9MV/cm) | | 1997/98 |
| Model for the trap structure in SiC MOS devices with a high density near EC (15R-MOSFET) | | 1999 |
| First vertical Power MOSFET in SiC | | 2000 |
| Large area Schottkydiodes (25A) | | 2002 |
| Stacked high voltage switch | | 2003 |
| Vertical bipolar power switch | | 2004 |
| Avalanche stable large area 4.5kV pin Diodes | | 2005 |
| SIT with very low Ron for solid circuit breakers | | 2007 | | High voltage 6.5kV bipolar diodes with low leakgae currents and stable avalanche |
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