Mohanasundaram, S. M. ; Pratap, R. ; Ghosh, A. (2013) Cantilever resonator with integrated actuation and sensing fabricated using a single step lithography IEEE Sensors Journal, 13 (2). pp. 440-441. ISSN 1530-437X
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Official URL: http://ieeexplore.ieee.org/document/6331505/
Related URL: http://dx.doi.org/10.1109/JSEN.2012.2225045
Abstract
Micro- and nano-mechanical resonators have been proposed for a variety of applications ranging from mass sensing to signal processing. Often their actuation and/or detection involve external subsystems that are much larger than the resonator itself. We have designed a simple microcantilever resonator with integrated sensor and actuator, facilitating the integration of large arrays of resonators. This unique design can be manufactured with a low-cost fabrication process, involving just a single step of lithography. The bilayer cantilever of gold and silicon dioxide is used as piezoresistive sensor as well as thermal bimorph actuator. The AC current used for actuation and the DC current used for piezoresistive detection are separated in the frequency-domain using a bias-tee circuit configuration. The resonant response is measured by detecting the second harmonic of the actuation current using a lock-in amplifier.
Item Type: | Article |
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Source: | Copyright of this article belongs to Institute of Electrical and Electronics Engineers. |
Keywords: | Piezoresistance; Microelectromechanical Devices; Microresonators; Nanotechnology |
ID Code: | 101509 |
Deposited On: | 01 Feb 2018 10:03 |
Last Modified: | 01 Feb 2018 10:03 |
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