An Optimized 4H-SiC Trench MOS Barrier Schottky (TMBS) Rectifier
This paper proposes an optimal 4H-silicon carbide trench MOS barrier Schottky (TMBS) Rectifier. The optimal structure of this rectifier is achieved by adding an N− wrapping region at the P+ shielding of the conventional TMBS structure, which significantly reduces the depletion...
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| Main Authors: | , , , , , |
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| Format: | article |
| Language: | EN |
| Published: |
IEEE
2018
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| Subjects: | |
| Online Access: | https://doaj.org/article/76a7866662c648e0877d03ed9d0976df |
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| Summary: | This paper proposes an optimal 4H-silicon carbide trench MOS barrier Schottky (TMBS) Rectifier. The optimal structure of this rectifier is achieved by adding an N− wrapping region at the P+ shielding of the conventional TMBS structure, which significantly reduces the depletion region formed by the P+ shielding region. As a result, the proposed structure provides a lower ON-resistance comparing with the conventional P+ shielding structure. Moreover, we study the electric characteristics of the proposed structure via numerical simulation. Such a structure improves the specific ON-resistance and figure of merit of the conventional P+ shielding TMBS by 32.2% and 48.4%, respectively, and offers a high breakdown voltage, i.e., up to 1908 V. |
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