Nano Science and Technology Institute
Nanotech 2010 Vol. 2
Nanotech 2010 Vol. 2
Nanotechnology 2010: Electronics, Devices, Fabrication, MEMS, Fluidics and Computational
Chapter 6: MEMS & NEMS Devices

Using MEMS as Self-Calibrating Force-Displacement Transducers: A Computational Study

Authors:J.V. Clark, F. Li, H. Lee, K. Kadasia
Affilation:Purdue University, US
Pages:364 - 367
Keywords:self-calibration, metrology
Abstract:Accurate and precise measurements of forces and displacements are critical to the improved understanding, discovery, and prediction of micro- and nanoscale phenomena. Since geometric and material properties of MEMS vary from run to run, it is critically important to be able to easily, quickly, and precisely calibrate MEMS that are used for important sensing applications. In this paper we propose a practical methodology that will allow researchers to employ self-calibrating MEMS as tools for force-displacement sensing and actuation applications. That is, we show that MEMS themselves can be used to determine their comb drive force and displacement characteristics without the use of large and unwieldy laboratory testing equipment such as scanning electron microscopes and the like. As a test case, we show how MEMS can be used to calibrate the displacement, force, and stiffness of an atomic force microscope (AFM) cantilever.
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