Stacking fault formation in SiC p-i-n diodes of (11-20) orientation

Formation of stacking faults in 4H-SiC p-i-n diodes fabricated on a (11-20) oriented substrate was investigated using optical emission microscopy and transmission electron microscopy. The stacking faults developed and expanded in basal planes under forward bias with current densities between 1.0 and...

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Veröffentlicht in:Applied physics letters 2004-06, Vol.84 (25), p.5267-5269
Hauptverfasser: Ha, S., Hu, K., Skowronski, M., Sumakeris, J. J., Paisley, M. J., Das, M. K.
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container_end_page 5269
container_issue 25
container_start_page 5267
container_title Applied physics letters
container_volume 84
creator Ha, S.
Hu, K.
Skowronski, M.
Sumakeris, J. J.
Paisley, M. J.
Das, M. K.
description Formation of stacking faults in 4H-SiC p-i-n diodes fabricated on a (11-20) oriented substrate was investigated using optical emission microscopy and transmission electron microscopy. The stacking faults developed and expanded in basal planes under forward bias with current densities between 1.0 and 100A∕cm2. Preexistent basal plane dislocations threading the blocking layer served as nucleation sites. Transmission electron microscopy identified the stacking faults as single-layer Shockley type. The stacking fault expansion in diodes on (11-20) wafers is inconsistent with substrate-induced biaxial stress as the driving force.
doi_str_mv 10.1063/1.1765209
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title Stacking fault formation in SiC p-i-n diodes of (11-20) orientation
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