Power semiconductor transistor having increased bipolar amplification
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United States of America Patent
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Feb 20, 2018
Issued Date -
N/A
app pub date -
Nov 22, 2016
filing date -
Nov 23, 2015
priority date (Note) -
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Abstract
A transistor includes first and second load terminals and a semiconductor body coupled to both terminals. The semiconductor body includes: a drift region having dopants of a first conductivity type; a transistor section for conducting a forward load current and having a control head coupling the first load terminal to a first side of the drift region; and a diode section for conducting a reverse load current. A diode port couples the second load terminal to a second side of the drift region and includes: a first emitter electrically connected to the second load terminal and having dopants of the first conductivity type for injecting majority charge carriers into the drift region; and a second emitter having dopants of a second conductivity type for injecting minority charge carriers into the drift region. A pn-junction transition between the first and second emitters has a breakdown voltage of less than 10 V.
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