基于单层二硫化物的子值舒特基屏障晶体管
Menggan Liu1,2, Jiebin Niu1,2, Guanhua Yang3,4
1State Key Lab of Fabrication Technologies for Integrated Circuits, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China.
Nature communications
|December 11, 2025
概括
本研究介绍了一种使用MoS2用于物联网 (IoT) 的新源门式晶体管 (SGT). 即使在纳米级,SGT也可以实现高增益和高频响应,从而实现超低功耗应用.
科学领域:
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
- 纳米技术纳米技术
背景情况:
- 物联网 (IoT) 需要高效的传感器,具有精确的信号放大和快速传输.
- 薄膜晶体管 (TFT) 对物联网接口至关重要,要求高电压增益和广泛的操作频率.
研究的目的:
- 为高性能,低功耗物联网应用开发一种新的源门式晶体管 (SGT) 架构.
- 为了证明基于MoS2的SGT在纳米级通道长度上的可扩展性和性能.
主要方法:
- 使用化学蒸汽沉积 (CVD) 培养的单层MoS2与薄高k介电材料集成的源门式晶体管 (SGT) 的制造.
- 晶体管性能的表征,包括各种通道长度 (LCH) 的内在增益,输出电阻,传导率和下值波动.
- 微波测量以确定切断频率和评估单体集成的共同源放大器.
主要成果:
- 实现了具有高内在增益 (>2.4x10^3) 和广泛操作频率范围的低值运行,即使在80nm频道长度 (LCH) 上也是如此.
- 在LCH从1000nm缩放到80nm时,没有证明增益降解.
- 在子值模式下观察到高切断频率为208MHz,在0.5V供应电压和~0.17nW功耗下,高放大器增益为249V/V.
结论:
- 开发的基于MoS2的SGT架构为高收益,高频率和超低功耗应用提供了一个有前途的通用解决方案.
- 晶体管的性能可扩展到80纳米的LCH突出显示了它对下一代物联网设备的潜力.
- 这项工作为先进的集成电路铺平了道路,在子值模式下有效运行.
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