电子三层增强模式高电子移动性晶体管:设计和分析
Bushra Qureshi1, Abdullah G Alharbi2, Rashid Ayub3
1Department of Electronics and Communications Engineering, Jamia Millia Islamia, New Delhi 110025, India.
ACS omega
|January 1, 2026
概括
我们设计了一种新的增强模式 (E模式) 三电子层 (TEL) AlGaN/GaN 高电子流动性晶体管 (HEMT),具有三个导电路径. 与传统的HEMTs相比,该设备显示了显著改善的传导率和故障电压.
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
- 设备工程 设备工程
背景情况:
- 高电子移动性晶体管 (HEMT) 对于高频应用至关重要.
- 对于简化功率电子电路来说,增强模式 (E模式) 操作是理想的.
- 在AlGaN/GaN HEMT中实现稳定的E模式运行仍然是一个挑战.
研究的目的:
- 设计和研究一种新的E模式三电子层 (TEL) AlGaN/GaN HEMT.
- 探索拟议设备的独特的多导通路径特性.
- 评估新型结构所提供的性能增强.
主要方法:
- 一个新的E模式TEL AlGaN/GaN HEMT结构的设计.
- 整合一个P-GaN口袋用于E模式操作.
- 创建双重二维电子气体 (2DEG) 层和充电等离子电子气体 (CPEG) 层.
- 用于设备分析的二维 (2D) 校准模拟.
主要成果:
- 拟议的设备具有E模式操作,值电压 (Vth) 为3.5V.
- 这种新型结构具有三个导电路径:两个2DEG层和一个CPEG层.
- 观察到显著的性能改善:与传统的HEMT相比,传导率 (Gm) 增加了284%,故障电压增加了97.4%.
- 对陷密度和AlN特性对设备性能影响的全面分析.
结论:
- 新的E模式TEL AlGaN/GaN HEMT表现出卓越的性能特性.
- 多导通路径设计有效提高了设备的效率和故障电压.
- 这项工作为基于GaN的先进电子设备提供了一个有前途的途径.
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