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논문 기본 정보

자료유형
학술저널
저자정보
Junki Jung (Pusan National University) Ogyun Seok (Kumoh National Institute of Technology) In Ho Kang (Korea Electrotechnology Research Institute) Hyoung Woo Kim (Korea Electrotechnology Research Institute) Wook Bahng (Korea Electrotechnology Research Institute) Ho-Jun Lee (Pusan National University)
저널정보
대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.21 No.2
발행연도
2021.4
수록면
119 - 125 (7page)
DOI
10.5573/JSTS.2021.21.2.119

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초록· 키워드

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Edge termination structures that are insensitive to process deviations were investigated to obtain 6.5 kV SiC power devices with stable blocking characteristics. Edge terminations were designed and verified by a TCAD simulation in consideration of undesirable surface charge states and variation of the implantation window in the termination region. A constant-space floating guard ring (CS-FGR) was sensitive to the variation of the implantation window. A gradually increasing space (GIS) FGR was less sensitive to process deviations than the CS-FGR. We concluded that the GIS-FGR is sufficiently stable for use in high-voltage SiC devices at surface charge densities (Q<SUB>surf</SUB>/q) of 0 to −1 × 10<SUP>12</SUP> cm<SUP>−2</SUP> and implantation window variations of −0.3 to +0.3 μm. The optimized GIS-FGR exhibited a high breakdown voltage of over 8 kV at all the Q<SUB>surf</SUB>/q values and in the implantation window variation range considered in this paper.

목차

Abstract
I. INTRODUCTION
II. SIMULATION MODEL AND DEVICE STRUCTURE
III. SIMULATION RESULTS AND DISCUSSION
V. CONCLUSIONS
REFERENCES

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