On one hand, the leakage current of power electronics modules such as IGBTs depends on the temperature. On the other hand, the temperature distribution on the IGBT chips is significantly non-uniform in high current and high voltage power modules where the chip center often suffers a maximum value while border edges and/or corners have a minimum value.
Which temperature of the chip below does affect the leakage current?
- area-weighted average temperature,
- the temperature of the active area or
- termination area.