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High-Temperature Characterization of 4H-SiC Darlington Transistors for Low Voltage Applications

Luigia Lanni, Bengt Gunnar Malm, Carl‐Mikael Zetterling, Mikael Östling

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Abstract

4H-SiC bipolar Darlington transistors (D-BJTs) for low voltage applications have been fabricated, simulated and characterized up to 300 °C, where they exhibit a current gain of 460. The influence on D-BJT current gain of relative current capability of driver and output BJTs has been investigated, and the collector resistance has been identified as the main limitation for the D-BJTs.

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What this paper is about

4H-SiC bipolar Darlington transistors (D-BJTs) for low voltage applications have been fabricated, simulated and characterized up to 300 °C, where they exhibit a current gain of 460. The influence on D-BJT current gain of relative current capability of driver and output BJTs has been investigated, and the collector resistance has been identified as the main limitation for the D-BJTs.

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Available abstract

4H-SiC bipolar Darlington transistors (D-BJTs) for low voltage applications have been fabricated, simulated and characterized up to 300 °C, where they exhibit a current gain of 460. The influence on D-BJT current gain of relative current capability of driver and output BJTs has been investigated, and the collector resistance has been identified as the main limitation for the D-BJTs.

Key concepts: Materials science, Bipolar junction transistor, Transistor, Optoelectronics, Current (fluid), Characterization (materials science), Voltage, Electrical engineering

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