Abstract
High-voltage (1600 V) diodes based on epitaxial 4H-SiC p++–p+–n0–n+ structures are tested as fast current breakers included in a special pulsed circuit. The measured current-breakdown time is about 150 ps. This is a record short time for high-voltage (above 1000 V) silicon-carbide diode breakers. The saturated hole-drift velocity in 4H-SiC of p type is experimentally estimated for the first time: v sp = 3 × 106 cm/s.
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Original Russian Text © P.A. Ivanov, O.I. Kon’kov, T.P. Samsonova, A.S. Potapov, 2018, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2018, Vol. 44, No. 3, pp. 3–8.
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Ivanov, P.A., Kon’kov, O.I., Samsonova, T.P. et al. 4H-SiC Based Subnanosecond (150 ps) High-Voltage (1600 V) Current Breakers. Tech. Phys. Lett. 44, 87–89 (2018). https://doi.org/10.1134/S1063785018020086
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DOI: https://doi.org/10.1134/S1063785018020086