High Resolution Electrohydrodynamic Jet Printing for Flexible Electronics
Abstract:Efforts to adapt and extend graphic arts printing techniques for demanding device applications in electronics, biotechnology and microelectromechancial systems have grown rapidly in recent years. This paper describes the use of electrohydrodynamically induced fluid flows through fine microcapillary nozzles for jet printing of patterns and functional devices with sub-micron resolution. Key aspects of the physics of this approach, which has some features in common with related but comparatively low resolution techniques for graphic arts, are revealed through heuristic models and direct high speed imaging of the droplet formation processes. Printing of complex patterns of inks, ranging from insulating and conducting polymers, to solution suspensions of silicon nanoparticles and rods, to single walled carbon nanotubes, using integrated, computer controlled printer systems illustrates some of the capabilities. High resolution, printed metal interconnects, electrodes and probing pads for functional transistors and representative circuits with critical dimensions as small as 1 micron demonstrate potential applications in printed electronics.
Document Type: Research Article
Publication date: 2007-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.
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