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NTIS 바로가기마이크로전자 및 패키징 학회지 = Journal of the Microelectronics and Packaging Society, v.26 no.3, 2019년, pp.15 - 22
김경호 (서울과학기술대학교 나노IT디자인융합대학원) , 좌성훈 (서울과학기술대학교 나노IT디자인융합대학원)
In these days, importance of the power electronic devices and modules keeps increasing due to electric vehicles and energy saving requirements. However, current silicon-based power devices showed several limitations. Therefore, wide band gap (WBG) semiconductors such as SiC, GaN, and
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
2018년 전력반도체소자시장 규모는? | 세계적으로전력반도체소자시장은 2018년에 이미 135억 달러에 이르고, 매년 2.9%의 성장을 2024년까지 이어 갈 것이라고 예상되고 있다. | |
패키지 모듈의 신뢰성 설계에 주요 고려사항은? | 한편 전력반도체에서 패키지 모듈의 신뢰성 설계는 매 우 중요하다. 전력반도체에서 발생된 열은 패키지 각 부 분의 열-기계적 응력을 발생시키고, 접합부의 열 피로에 의하여 접합부 및 소자의 수명이 열화된다. 따라서 소자에서 발생되는 열을 적절히 방출하여 소자의 접합부 온도(junction temperature)를 적정 온도 이하로 유지하는 것 이 매우 중요하다. 전력반도체 소자를 접합하는 기판의 종류는 접합방식에 의하여 분류되고, 주로 DBC(direct bonded copper)와 AMB(active metal brazing) 방식에 의해 제조된 기판이 사용된다. | |
전력반도체 소자기술은 어떻게 구분되는가? | 매년 약 20% 이상 성장하고 있는 전기 및 하이브리드 전기차(EV/HEV) 시장에서 전력반도체(power semiconductor) 는 전력의 변환(DC↔AC), 모터 구동의 스위칭, 제어 등 을 수행하기 위하여 사용된다. 전력반도체 소자기술은 고온환경의 다이오드(diode)와 MOSFET(metal oxide semiconductor field effect transistor), JFET(junction field transistor) 등의 단극소자(unipolar) 및 HEMT(high electron mobility transistor), IGBT(insulated gate bipolar transistor) 등의 양극소자(bipolar)로 구분된다. 최근 전력반도체에 대한 수요가 급증하면서, 전력반도체 소자의 전력밀도 증가에 대한 많은 연구가 보고되고 있다. |
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