• 제목/요약/키워드: Symmetric trench MOSFET

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P-Emitter의 길이, 구조가 Asymmetric SiC MOSFET 소자 성능에 미치는 영향 (Effect of P-Emitter Length and Structure on Asymmetric SiC MOSFET Performance)

  • 김동현;구상모
    • 한국전기전자재료학회논문지
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    • 제33권2호
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    • pp.83-87
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    • 2020
  • In this letter, we propose and analyze a new asymmetric structure that can be used for next-generation power semiconductor devices. We compare and analyze the electrical characteristics of the proposed device with respect to those of symmetric devices. The proposed device has a p-emitter on the right side of the cell. The peak electric field is reduced by the shielding effect caused by the p-emitter structure. Consequently, the breakdown voltage is increased. The proposed asymmetric structure has an approximately 100% higher Baliga's figure of merit (~94.22 MW/㎠) than the symmetric structure (~46.93 MW/㎠), and the breakdown voltage of the device increases by approximately 70%.