在基于氧化物的CMOS应用中,用于p型和n型氧化物半导体的Al2O3的材料特定扩散屏障性能
Yuxuan Zhang1, Dong Hun Lee1, Honghwi Park2,3
1School of Engineering Technology, Purdue University, West Lafayette, Indiana 47907, United States.
ACS applied materials & interfaces
|July 3, 2025
概括
这项研究引入了一个Al2O3封装层来稳定p型SnOx,提高其在氧化物电子中的性能. 封装有效地阻止和氧的扩散,增强设备的稳定性和功能.
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
- 纳米技术 纳米技术
背景情况:
- P型氧化物半导体对于双极电子设备至关重要.
- 单离子p型SnOx提供了加工优势,但存在不稳定性.
- 和氧的扩散会降低SnOx的性能和设备的性能.
研究的目的:
- 开发一种稳定的p型SnOx材料用于氧化物电子.
- 研究Al2O3封装层在缓解Snox不稳定性的有效性.
- 为了证明封装p-SnOx在补充逻辑设备中的改进性能.
主要方法:
- 密度函数理论 (DFT) 和初始分子动力学模拟.
- 使用飞行时间二次离子质谱法 (ToF-SIMS) 进行实验验证.
- 封装和未封装的互补逻辑设备的制造和表征.
主要成果:
- Al2O3封装显著减少了p-SnOx中的吸附,解离和迁移.
- 封装p-SnOx和n型InZnO (IZO) 装置在空气回火后显示出增强的稳定性和均性.
- 配有封装p-SnOx的补充逻辑设备与未封装设备 (29V/V) 相比,具有6倍的增益 (170V/V).
结论:
- Al2O3 作为p-SnOx的有效功能屏障层,防止和氧气扩散的降解.
- 封装对于实现可靠和高性能双极氧化物电子设备至关重要.
- 开发的Al2O3/p-SnOx系统对先进的氧化物电子应用有很大的前景.
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