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Novel advanced analytical design tool for 4H-SiC VDMOSFET devices

机译:适用于4H-SiC VDMOSFET器件的新型高级分析设计工具

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Summary form only given. The complete presentation was not made available for publication as part of the conference proceedings. An analytical tool to design 4H-SiC power vertical Double-diffused Metal-Oxide-Semiconductor Field-Effect-Transistor is proposed. The model optimizes, in terms of the doping concentration in the Drift-region, the trade-off between the ON-resistance, RON, and the maximum blocking voltage, VBL, that is the Drain-Source voltage for which the avalanche breakdown appears at the p+-well-DRIFT junction together with the breakdown of the Gate oxide. Finding such trade-off means to maximize FOM = V2BL/RON, Figure-Of-Merit. Our results are based on a novel full-analytical model of the electric field in the Gate oxide, EOX, whose generality is ensured by the absence of fitting and empirical parameters. Model results are successfully compared with 2D-simulations covering a wide range of device performances.
机译:仅提供摘要表格。完整的演示文稿未作为会议记录的一部分公开发布。提出了一种设计4H-SiC功率垂直双扩散金属氧化物半导体场效应晶体管的分析工具。该模型根据漂移区中的掺杂浓度优化了导通电阻RON与最大阻断电压VBL(即漏源电压)之间的折衷,雪崩击穿出现在该漏源电压上p +阱/ n-DRIFT结以及栅极氧化物的击穿。找到这样的权衡意味着最大化FOM = V2BL / RON,品质因数。我们的结果基于门氧化物EOX中电场的新型完整分析模型,该模型的通用性是通过缺少拟合和经验参数来确保的。模型结果已成功与涵盖多种设备性能的2D仿真进行了比较。

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