Saturation Current and On-Resistance Correlation during During Repetitive Short-Circuit Conditions on SiC JFET Transistors

被引:15
作者
Berkani, M. [1 ]
Lefebvre, S. [1 ]
Khatir, Z. [2 ]
机构
[1] CNRS, F-94235 Cachan, France
[2] French Inst Sci & Technol Transport Dev & Network, Inst Sci & Technol Transport, Planning & Networks Lab New Technol, F-78008 Versailles, France
关键词
Ageing; current limiter; junction gate field-effect transistors (JFETs); short circuit; silicon carbide; METALLIZATION; DEVICES;
D O I
10.1109/TPEL.2012.2215629
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This letter presents a correlation between the reduction of the saturation current level and increase of on-state resistance and the top-metal ageing of normally ON SiC junction gate field effecttransistors. For this study, ageing has been obtained using repetitive short-circuit operations. Among monitored parameters during ageing, on-state resistance and short-circuit current level are those, which have the strongest evolution. The top-metal degradation has been characterized via the on-state resistance measurement during ageing. In particular, we clearly show that the top-metal restructuration due to ageing leads to an additional voltage drop between gate and source terminals and results to a lower gate-source junction voltage.
引用
收藏
页码:621 / 624
页数:4
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