화학공학소재연구정보센터
학회 한국재료학회
학술대회 2003년 가을 (11/21 ~ 11/22, 연세대학교)
권호 9권 2호
발표분야 반도체
제목 MgO/GaN MOSFETs의 dc 특성 및 Gate Breakdown 특성 Simulation
초록 The effects of oxide thickness and gate length of MgO/GaN metal oxide semiconductor field effect transistors (MOSFETs) on I-V, threshold voltage and breakdown voltage characteristics were examined using a drift-diffusion model. The saturation drain current scales in an inverse logarithmic fashion with MgO thickness and is <10-3 A•µm-1 for 0.5 µm gate length devices with oxide thickness >600 Å or for all 1 µm gate length MOSFETs with oxide thickness in the range of >200 Å. Gate breakdown voltage is >100 V for gate length >0.5 µm and MgO thickness >600 Å. The threshold voltage scales linearly with oxide thickness and is <2 V for oxide thickness <800 Å and gate lengths <0.6 µm. The GaN MOSFET shows excellent potential for elevated temperature, high speed applications.
저자 조 현1, 김진곤1, B.P. Gila2, K.P. Lee3, C.R. Abernathy2, S.J. Pearton3, F. Ren2
소속 1밀양대, 2Department of Materials Science and Engineering, 3Univ. of Florida
키워드 MgO/GaN MOSFET; dc performance; Gate breakdown characteristics; simulation; a drift-diffusion model
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