Avalanche Breakdown Stability of High Voltage (1430 V) 4H-SiC p+–n0–n+ Diodes
- Authors: Ivanov P.A.1, Samsonova T.P.1, Potapov A.S.1
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Affiliations:
- Ioffe Institute
- Issue: Vol 52, No 12 (2018)
- Pages: 1630-1634
- Section: Physics of Semiconductor Devices
- URL: https://ogarev-online.ru/1063-7826/article/view/204821
- DOI: https://doi.org/10.1134/S1063782618120126
- ID: 204821
Cite item
Abstract
The electrothermal breakdown in high-voltage (1430 V) 4H-SiC p+–n0–n+ diodes with an n0-base thickness of 7.5 μm, a donor concentration of 8.0 × 1015 cm–3, and 4.9 × 10–4 cm2 in area are studied. The stability of the diodes to avalanche breakdown is characterized by the maximum energy of a single avalanche current pulse that can be scattered by a diode until its catastrophic destruction. At a pulse duration of ~1 μs, the energy maximum is 1.4 mJ (2.9 J/cm2). It is shown that diode destruction is caused by local overheating of the diode structure to a temperature of ~1600 K at which the intrinsic carrier concentration becomes higher than the doping donor concentrations in the blocking n0-type base.
About the authors
P. A. Ivanov
Ioffe Institute
Author for correspondence.
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
T. P. Samsonova
Ioffe Institute
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
A. S. Potapov
Ioffe Institute
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
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