通过作者查论文: Erik Danielsson

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作者: Erik Danielsson, Martin Domeij, Hyung Seok Lee, Carl Mikael Zetterling, Mikael Östling, Adolf Schöner, Christer Hallin
摘要: 4H-SiC BJTs were fabricated using epitaxial regrowth instead of ion implantation to form a highly doped extrinsic base layer necessary for a good base ohmic contact. A remaining p+ regrowth spacer at the edge of the base-emitter junction is proposed to explain a low current gain of 6 for the BJTs. A breakdown voltage of 1000 V was obtained for devices with Al implanted JTE.
905
作者: Martin Domeij, Erik Danielsson, Hyung Seok Lee, Carl Mikael Zetterling, Mikael Östling
摘要: The current gain (b) of 4H-SiC BJTs as function of collector current (IC) has been investigated by DC and pulsed measurements and by device simulations. A measured monotonic increase of b with IC agrees well with simulations using a constant distribution of interface states at the 4H-SiC/SiO2 interface along the etched side-wall of the base-emitter junction. Simulations using only bulk recombination, on the other hand, are in poor agreement with the measurements. The interface states degrade the simulated current gain by combined effects of localized recombination and trapped charge that influence the surface potential. Additionally, bandgap narrowing has a significant impact by reducing the peak current gain by about 50 % in simulations.
889
作者: Erik Danielsson, Carl Mikael Zetterling, Mikael Östling, Sang Kwon Lee, Kevin J. Linthicum, D.B. Thomson, O.H. Nam, Robert F. Davis
1049
作者: Hyung Seok Lee, Martin Domeij, Erik Danielsson, Carl Mikael Zetterling, Mikael Östling
897
作者: W. Liu, Erik Danielsson, Carl Mikael Zetterling, Mikael Östling
781
作者: Erik Danielsson, Martin Domeij, Carl Mikael Zetterling, Mikael Östling, Adolf Schöner
1117
作者: Erik Danielsson, Carl Mikael Zetterling, Mikael Östling, Urban Forsberg, Erik Janzén
1337
作者: Hyung Seok Lee, Sang-Mo Koo, Carl Mikael Zetterling, Erik Danielsson, Martin Domeij, Mikael Östling
1437
作者: Erik Danielsson, Chris I. Harris, Carl Mikael Zetterling, Mikael Östling
805
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