Investigation on the degradation indicators of short-circuit tests in 1.2 kV SiC MOSFET power modules

Autor: Du, He, Reigosa, Paula Diaz, Iannuzzo, Francesco, Ceccarelli, Lorenzo
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Du, H, Reigosa, P D, Iannuzzo, F & Ceccarelli, L 2018, ' Investigation on the degradation indicators of short-circuit tests in 1.2 kV SiC MOSFET power modules ', Microelectronics Reliability, vol. 88-90, pp. 661-665 . https://doi.org/10.1016/j.microrel.2018.06.039
DOI: 10.1016/j.microrel.2018.06.039
Popis: This paper provides a comprehensive investigation on both static characteristics and short-circuit performance of 1.2 kV SiC MOSFET power modules with 2nd generation planar technology. The experimental approach is based on the static characteristics measurements and the short-circuit tests with gradual increase of pulse time duration. If any variation of the static characteristics appears, the time duration of next short-circuit tests would keep the same with the last pulse duration (approach 1) or increase continuously (approach 2). The results of the short-circuit waveforms show a gate degradation which is further confirmed with the measurement of the gate leakage current. Additionally, other degradation indicators, including positive shift of threshold voltage, drain leakage current and on-state resistance increase are evidenced and discussed in this paper. These can be used for early prediction of the degradation and failure in the short-circuit conditions.
Databáze: OpenAIRE