| Project/Area Number |
25630124
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Osaka University |
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Principal Investigator |
WATANABE HEIJI 大阪大学, 工学(系)研究科(研究院), 教授 (90379115)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIMURA Takayoshi 大阪大学, 大学院工学研究科, 准教授 (90252600)
HOSOI Takuji 大阪大学, 大学院工学研究科, 助教 (90452466)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 電子・電気材料 / パワーエレクトロニクス |
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| Outline of Final Research Achievements |
SiC has gained considerable attention as a promising material for next-generation power electronics due to its superior breakdown field and thermal conductivity over Si. Although SiC-MOSFETs provide normally-off characteristic, MOS devices have suffered from deteriorated interface properties leading to low channel mobility and poor reliability. In this study, we propose a novel method based on “beam induced MOS interface reactions” to overcome these problems. Impacts of single wavelength ultraviolet light and high-energy electron beam irradiation onto thermally-grown SiO2/SiC structures were examined in order to understand role of energetic beams for improving MOS interface quality. Moreover, physical origins of MOS interface defects were discussed on the basis of experimental findings.
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