Current–voltage characteristics of high-voltage 4H-SiC p+–n0–n+ diodes in the avalanche breakdown mode
- Authors: Ivanov P.A.1, Potapov A.S.1, Samsonova T.P.1, Grekhov I.V.1
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Affiliations:
- Ioffe Physical–Technical Institute
- Issue: Vol 51, No 3 (2017)
- Pages: 374-378
- Section: Physics of Semiconductor Devices
- URL: https://journals.rcsi.science/1063-7826/article/view/199640
- DOI: https://doi.org/10.1134/S1063782617030095
- ID: 199640
Cite item
Abstract
p+–n0–n+ 4H-SiC diodes with homogeneous avalanche breakdown at 1860 V are fabricated. The pulse current–voltage characteristics are measured in the avalanche-breakdown mode up to a current density of 4000 A/cm2. It is shown that the avalanche-breakdown voltage increases with increasing temperature. The following diode parameters are determined: the avalanche resistance (8.6 × 10–2 Ω cm2), the electron drift velocity in the n0 base at electric fields higher than 106 V/cm (7.8 × 106 cm/s), and the relative temperature coefficient of the breakdown voltage (2.1 × 10–4 K–1).
About the authors
P. A. Ivanov
Ioffe Physical–Technical Institute
Author for correspondence.
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
A. S. Potapov
Ioffe Physical–Technical Institute
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
T. P. Samsonova
Ioffe Physical–Technical Institute
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021
I. V. Grekhov
Ioffe Physical–Technical Institute
Email: Pavel.Ivanov@mail.ioffe.ru
Russian Federation, St. Petersburg, 194021