Point injection in trench insulated gate bipolar transistor for ultra low losses
2012
In this paper we propose novel designs that enhance the plasma concentration across the Field Stop IGBT. The “p-ring” and the “point-injection” type devices exhibit increased cathode side conductivity modulation which results in impressive IGBT performance improvement. These designs are shown to be extremely effective in lowering the on-state losses without compromising the switching performance or the breakdown rating. For the same switching losses we can achieve more than 20% reduction of the on state energy losses compared to the conventional FS IGBT.
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