![]() ![]() Finally, the velocity of the cantilever beam tip as it traverses the specimen surface has a discrete characteristic rather than a smooth, continuous profileįunctionalization of gold and nanocrystalline diamond atomic force microscope tips for single molecule force spectroscopy The elastic modulus in the y direction is variable. Both this motion and the shear cutting force are nonlinear. Furthermore, the cantilever beam tip is found to execute a saw tooth motion. It is found that the piling height increases linearly with the cantilever beam carrier velocity. The cutting force is determined from experimental observations of the piling height on the Cu surface and the rotation angle of the cantilever beam tip. The dynamic motion of the tip is modeled using a combined approach based on Newton's law and empirical observations. ![]() This paper investigates the nonlinear dynamic response of an atomic force microscope (AFM) cantilever beam tip during the nanolithography of a copper (Cu) surface using a high-depth feed. Yeh, Y-L Jang, M-J Wang, C-C Lin, Y-P Chen, K-S International Nuclear Information System (INIS) Nonlinear dynamic response of cantilever beam tip during atomic force microscopy (AFM) nanolithography of copper surface A model is also developed to simulate the interactions between the atomic force microscope tip and soft substrate during FMDPN, and verified by its good performance in fitting our experimental data. The operation parameters including the relative “trigger threshold†and “surface delay†parameters are vital to control the loading force and dwell time for ink deposition during FMDPN. In this work, the underlying mechanism of the force mode dip-pen nanolithography (FMDPN) is investigated in depth by analyzing force curves, tapping mode deflection signals, and “Z-scan†voltage variations during the FMDPN. Yang, Haijun, E-mail: E-mail: E-mail: [Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240 (China) Interfacial Water Division and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, CAS, Shanghai 201800 (China) Xie, Hui Rong, Weibin Sun, Lining [State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin 150080 (China) Wu, Haixia Guo, Shouwu, E-mail: E-mail: E-mail: [Key Laboratory for Thin Film and Microfabrication of the Ministry of Education, Research Institute of Micro/Nano Science and Technology, Shanghai Jiao Tong University, Shanghai 200240 (China) Wang, Huabin, E-mail: E-mail: E-mail: [Centre for Tetrahertz Research, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714 (China) Mechanism of force mode dip-pen nanolithography Therefore, we believe that the nanoscalpel could serve as an important tool for nanofabrication and nanosurgery on biological objects. Using mammalian cells as an example, we demonstrated their ability to make narrow incisions and measurements of local elastic and inelastic characteristics of a cell, making nanoscalpels also useful as a nanosurgical tool in cell biology. As an atomic force microscope-based technique the nanoscalpel provides simultaneous control of the applied cutting force and the depth of the cut. They were fabricated using electron beam induced deposition at the apex of atomic force microscope probes and are hard enough for a single cut to penetrate a 45 nm thick gold layer and thus can be used for making narrow electrode gaps required for fabrication of nanoelectronic devices. Fabricated nanoscalpels have the shape of a thin blade with the controlled thickness of 20-30 nm and width of 100-200 nm. We present the fabrication of specialized nanotools, termed nanoscalpels, and their application for nanolithography and nanomechanical manipulation of biological objects. An atomic force microscope nanoscalpel for nanolithography and biological applicationsĮnergy Technology Data Exchange (ETDEWEB)īeard, J D Burbridge, D J Moskalenko, A V Dudko, O Gordeev, S N [Department of Physics, University of Bath, Bath BA2 7AY (United Kingdom) Yarova, P L Smirnov, S V, E-mail: [Department of Pharmacy and Pharmacology, University of Bath, Bath BA2 7AY (United Kingdom) ![]()
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