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Nanofabrication of Gate-defined GaAs/AlGaAs Lateral Quantum Dots
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在门-全方位的纳米板设备的可靠性的审查
1IBM Research Albany, 257 Fuller Road, Albany, NY 12203, USA.
Micromachines
|February 24, 2024
概括
在先进的CMOS节点中,Gate-All-Around (GAA) 纳米板 (NS) 场效应晶体管 (FET) 将取代FinFET. 本综述详细介绍了GAA NS FET中的BTI,HCI和TDDB等可靠性挑战,这是由于新的架构和扩展.
科学领域:
- 半导体设备物理和可靠性工程.
- 先进的CMOS技术节点和MOSFET扩展.
背景情况:
- 门全方位 (GAA) 纳米板 (NS) 场效应晶体管 (FET) 准备在3纳米技术节点及以后取代FinFET.
- 这种架构转变引发了新的可靠性问题,原因是设备结构和积极的音调缩放.
研究的目的:
- 审查和分析GAA NS FET中的关键可靠性机制.
- 为了突出纳米板架构的独特可靠性方面.
- 提供当前和未来纳米板可靠性挑战的全面概述.
主要方法:
- 对既有和新兴可靠性机制的文献综述.
- 在GAA NS FET中分析偏差温度不稳定性 (BTI).
- 热载体注射 (HCI) 效应的研究.
- 检查门氧化物 (Gox) 和中线 (MOL) 的时间依赖介电分解 (TDDB).
主要成果:
- 与FinFET相比,GAA NS FET存在独特的可靠性挑战.
- BTI,HCI和TDDB (Gox和MOL) 是关键的故障机制.
- 积极的扩展加剧了这些可靠性问题.
结论:
- 了解和减轻GAA NS FET中的可靠性问题对于下一代CMOS技术至关重要.
- 需要进一步的研究来解决持续扩展所带来的可靠性挑战.
- 纳米板架构需要定制可靠性评估和解决方案.
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