Material science and device physics in SiC technology for high-voltage power devices

T Kimoto - Japanese Journal of Applied Physics, 2015 - iopscience.iop.org
Power semiconductor devices are key components in power conversion systems. Silicon
carbide (SiC) has received increasing attention as a wide-bandgap semiconductor suitable …

Carrier lifetime and breakdown phenomena in SiC power device material

T Kimoto, H Niwa, T Okuda, E Saito… - Journal of Physics D …, 2018 - iopscience.iop.org
Recent progress and current understanding of carrier lifetimes and avalanche phenomena
in silicon carbide (SiC) are reviewed. The acceptor level of carbon vacancy (VC), called the …

Impact ionization coefficients in 4H-SiC toward ultrahigh-voltage power devices

H Niwa, J Suda, T Kimoto - IEEE Transactions on Electron …, 2015 - ieeexplore.ieee.org
A temperature dependence of impact ionization coefficients in 4H-SiC was studied in a wide
range of electric field toward the accurate designing of ultrahigh-voltage devices. The …

Heavy ion induced degradation in SiC Schottky diodes: Bias and energy deposition dependence

A Javanainen, KF Galloway, C Nicklaw… - … on Nuclear Science, 2016 - ieeexplore.ieee.org
Experimental results on ion-induced leakage current increase in 4H-SiC Schottky power
diodes are presented. Monte Carlo and TCAD simulations show that degradation is due to …

SiC material properties

T Kimoto - Wide bandgap semiconductor power devices, 2019 - Elsevier
This chapter introduces the crystal structure, electronic band structure, and physical
properties of silicon carbide (SiC). Physical properties are critical parameters for accurate …

Impact ionization coefficients of 4H-SiC in a wide temperature range

Y Zhao, H Niwa, T Kimoto - Japanese Journal of Applied Physics, 2018 - iopscience.iop.org
The temperature dependence of impact ionization coefficients of electrons and holes along
4H-SiC< 0001> was determined in a wide temperature range from 156 K to 561 K …

Impact of electrical stress and neutron irradiation on reliability of silicon carbide power MOSFET

K Niskanen, AD Touboul… - … on Nuclear Science, 2020 - ieeexplore.ieee.org
The combined effects of electrical stress and neutron irradiation of the last generation of
commercial discrete silicon carbide power MOSFETs are studied. The single-event burnout …

Physical models for SiC and their application to device simulations of SiC insulated-gate bipolar transistors

T Hatakeyama, K Fukuda… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
Important physical models for 4H silicon carbide (4H-SiC) are constructed based on the
literature and experiments on the physical properties of 4H-SiC. The obtained physical …

Temperature dependence of avalanche breakdown in 4H-SiC devices

P Steinmann, B Hull, IH Ji, D Lichtenwalner… - Journal of Applied …, 2023 - pubs.aip.org
We report new data on the temperature coefficient of the avalanche breakdown voltage (BV)
in 4H-SiC devices. We compare avalanche in different device types (MOSFETs/Schottky …

Investigation of the avalanche ruggedness of SiC MPS diodes under repetitive unclamped-inductive-switching stress

S Palanisamy, MK Ahmmed, J Kowalsky, J Lutz… - Microelectronics …, 2019 - Elsevier
State of the art freewheeling diodes are connected antiparallel with a switch like IGBT or
MOSFET and for latter also with the internal body diode. The diodes have to be rugged …