在SiC基板上生长的高功率AlGaN/InGaN/GaN/AlGaN高电子流动性晶体管的优化条件
Bonghwan Kim1, Seung-Hwan Park1
1Department of Semiconductor Electronic Engineering, Daegu Catholic University, Gyeongsan 38430, Gyeongbuk, Republic of Korea.
Materials (Basel, Switzerland)
|November 27, 2024
概括
优化AlGaN/InGaN/GaN/AlGaN/SiC HEMT需要特定的InGaN层参数. 实现高分断电压,In组成≥0.06和厚度<10nm,以提高性能.
科学领域:
- 材料科学 材料科学 材料科学
- 半导体物理 半导体物理
- 电气工程 电气工程
背景情况:
- 基于AlGaN/GaN异构的高电子移动性晶体管 (HEMT) 对高功率和高频应用至关重要.
- 优化设备结构对于改善故障电压和电流处理等性能指标至关重要.
研究的目的:
- 为了确定AlGaN/InGaN/GaN/AlGaN/SiC HEMTs的最佳结构参数.
- 研究InGaN层厚度和构成对分解电压和其他设备特征的影响.
主要方法:
- 进行模拟来分析AlGaN/InGaN/GaN/AlGaN/SiC HEMTs的分解电压.
- 该研究系统地改变了InGaN层的In成分和厚度.
主要成果:
- 断裂电压对In组合非常敏感,显著增加到0.06,然后和.
- 对于高故障电压的最佳In组合是≥0.06.
- 断裂电压受到厚度的影响较小,保持稳定,直到超过10nm,然后它减少.
- 最佳的InGaN厚度为<10 nm.
- 构成中增加的正面影响排水电流,但也提高了下值波动 (SS).
- 在GaN层厚度对SS的影响很小.
结论:
- 这项研究为优化AlGaN/InGaN/GaN/AlGaN/SiC HEMT结构提供了关键的见解.
- 保持在0.06或以上的组成和10nm以下的厚度,建议在高分压下保持.
- 在设备设计过程中,必须考虑故障电压,SS和排水电流之间的权衡.
关键词:
AlGaN/InGaN/GaN/AlGaN/SiCN/AlGaN/InGaN/GaN/AlGaN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCN/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn/SiCn这里是HEMT.这是TCAD TCAD.相关概念视频
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