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Journal of Micro/Nanolithography, MEMS, and MOEMS

SU-8 microcantilever with an aperture, fluidic channel, and sensing mechanisms for biological and other applications
Author(s): Angelo Gaitas; Robert W. Hower
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Paper Abstract

We describe a method for fabricating an aperture on a fluidic cantilever device using SU-8 as a structural material. The device can ultimately be used for patch clamping, microinjections, fluidic delivery, fluidic deposition, and micromaterial removal. In the first generation of this device, the initial aperture diameter is 10  μm and is fabricated on a silicon-on-insulator (SOI) wafer that is structurally used to define the aperture. The aperture can be reduced in size through mask design. This self-aligned process allows for patterning on the sharp tip projecting out of the fluidic plane on the cantilever and is batch fabricated, reducing the cost and time for manufacture. The initial mask, SOI device layer thickness, and the width of the base of the tip define the size of the aperture. The SU-8 micromachined cantilever includes an electrode and a force sensing mechanism. The cantilever can be easily integrated with an atomic force microscope or an optical microscope.

Paper Details

Date Published: 15 September 2014
PDF: 3 pages
J. Micro/Nanolith. MEMS MOEMS 13(3) 030501 doi: 10.1117/1.JMM.13.3.030501
Published in: Journal of Micro/Nanolithography, MEMS, and MOEMS Volume 13, Issue 3
Show Author Affiliations
Angelo Gaitas, Kytaro, Inc. (United States)
Florida International Univ. (United States)
Robert W. Hower, Kytaro, Inc. (United States)

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