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Volume: 27 | Article ID: art00026_2
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High Resolution Conformal Printing with Aerosol Jet®
  DOI :  10.2352/ISSN.2169-4451.2011.27.1.art00026_2  Published OnlineJanuary 2011
Abstract

Fabrication of 3D devices is often done by layer-wise printing of inks and resins in conjunction with treatments such as photonic curing and laser sintering. The nontreated material is typically dissolved leaving the final 3D part. Such techniques are generally limited to single materials and it can be difficult to build high resolution, 3D structures over existing 3D surfaces. In this paper, we demonstrate a novel, non-contact technique called Aerosol Jet® printing. This technique creates a collimated jet of aerosol droplets that extend 3-5 mm from the nozzle to the target. The deposited features can be as small as 10 um and a wide assortment of materials can be printed such as metal nano-particles, polymers, adhesives, ceramics, and bio-active materials. The nozzle direction and XYZ positioning is controlled by CAD/CAM software which allows conformal printing onto 2.5D substrates which have a high level of surface topography as well as fully 3D surfaces. For example, metallic traces can be printed onto 3D shapes such as trenches and vias, as well as onto sidewalls and convex and concave surfaces. We discuss the fabrication of a conformal phase array antenna, embedded circuitry and sensors, and electronic packaging.

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Jason A. Paulsen, Michael J. Renn, Kurt Christenson, "High Resolution Conformal Printing with Aerosol Jet®in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP27),  2011,  pp 512 - 515,  https://doi.org/10.2352/ISSN.2169-4451.2011.27.1.art00026_2

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