SiC-Epitaxiewafer, Verfahren zum Herstellen eines SiC-Epitaxiewafers, SiC-Vorrichtung und Leistungsumwandlungsgerät
A SiC substrate (1) has an off angle θ°. A SiC epitaxial layer (2) having a film thickness of Tm μm is provided on the SiC substrate (1). Triangular defects (3) are formed on a surface of the SiC epitaxial layer (2). A density of triangular defects (3) having a length of Tm/Tan θ×0.9 or more in a su...
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| creator | Hamano, Kenichi Ohno, Akihito Mizobe, Takuma Kimura, Yasuhiro Mitani, Yoichiro |
| description | A SiC substrate (1) has an off angle θ°. A SiC epitaxial layer (2) having a film thickness of Tm μm is provided on the SiC substrate (1). Triangular defects (3) are formed on a surface of the SiC epitaxial layer (2). A density of triangular defects (3) having a length of Tm/Tan θ×0.9 or more in a substrate off direction is denoted by A. A density of triangular (3) defects having a length smaller than Tm/Tan θ×0.9 in the substrate off direction is denoted by B. B/A≤0.5 is satisfied. |
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| subjects | AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR CHEMISTRY CRYSTAL GROWTH METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL |
| title | SiC-Epitaxiewafer, Verfahren zum Herstellen eines SiC-Epitaxiewafers, SiC-Vorrichtung und Leistungsumwandlungsgerät |
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