高组成,超低功率GaAsSb/InGaAs异质连接道场效应晶体管
Yan Liu1, Xiang Li1, Dao-Hua Zhang1
1Shenzhen Pinghu Laboratory, Shenzhen 518111, China.
Micromachines
|February 27, 2026
概括
这项研究通过调整组合和兴奋剂来优化道场效应晶体管 (TFET). 在InGaAs层中更高的In成分提高了设备性能和道化能力.
科学领域:
- 半导体设备物理 半导体设备物理
- 材料科学 材料科学 材料科学
背景情况:
- 道场效应晶体管 (TFET) 为低功耗电子产品提供了潜力.
- 优化异质连接对于提高TFET性能至关重要.
研究的目的:
- 系统地研究内在InGaAs层中的In成分和p-typedoping度在p-GaAsSb层对TFET性能的影响.
- 探索p-GaAsSb/i-InxGa1-xAs异构连接的调整性,用于自闭操作和高电流.
主要方法:
- 技术计算机辅助设计 (TCAD) 模拟被使用.
- 使用了一个非本地带对带道模型.
- 系统检查不同组合 (x) 和p类型的兴奋剂度.
主要成果:
- 在InGaAs层中,In组合约为0.59,达到最佳设备性能,超过了格子匹配的0.53组合.
- 实现了适度的分级带对齐,使得在零门偏差下自动关闭.
- 在VDS=VGS=0.5V时,获得了13.51mV/dec的最小下值摆动和35.39μA/μm的ON状态电流.
结论:
- 内在InGaAs层中的In成分是TFET性能的一个关键参数,更高的In含量显示出优异的结果.
- 对于先进的TFET设计来说,p-GaAsSb/i-InxGa1-xAs异构连接的可调性是一个显著的优势.
- 优化的TFET显示了增强的道能力,为更高效的电子设备铺平了道路.
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