一种基于改进型裙摆探针的三维原子力显微技术(英文)
发布时间:2022-01-11 00:02
针对微纳米结构的真三维形貌无损检测需求,研制了基于裙摆型针尖(Flared tip)的三维原子力显微镜(3D-AFM)。设计了一种高精度扫描平台结构,通过同时移动探针和样品实现快速伺服反馈,并利用组合式纳米定位台来保证位移的线性度和正交性。为了消除因AFM测头移动引起的信号偏差,设计了随动式光杠杆系统用于检测悬臂梁的形变量。此外,提出了一种基于商用裙摆探针的悬臂梁裁剪方法,可减小测量过程中针尖横向受力。将改进型探针安装到3D-AFM系统上,利用自适应矢量逼近扫描策略进行了多种样品的3D测量实验。实验结果表明,样机的垂直方向位移噪声(RMS)优于0.1 nm,高/宽测量重复性(峰峰值)优于2.5 nm。
【文章来源】:Journal of Measurement Science and Instrumentation. 2020,11(04)CSCD
【文章页数】:9 页
【文章目录】:
0 Introduction
1 3D-AFM system configuration
1.1 Combined scanning and positioning system
1.2 Cantilever deformation detecting system
1.3 Improved probe with flared tip
2 Adaptive angle scanning method
3 Experimental results and analysis
4 Conclusion
本文编号:3581672
【文章来源】:Journal of Measurement Science and Instrumentation. 2020,11(04)CSCD
【文章页数】:9 页
【文章目录】:
0 Introduction
1 3D-AFM system configuration
1.1 Combined scanning and positioning system
1.2 Cantilever deformation detecting system
1.3 Improved probe with flared tip
2 Adaptive angle scanning method
3 Experimental results and analysis
4 Conclusion
本文编号:3581672
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