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A Combined Ink Jet Printing/Photo-reduction Process for the Fabrication of μm-size Conductive Tracks

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Ink jet printing is a promising process for the production of cheap, flexible electronic circuits. Miniaturisation of such circuits to sizes smaller than currently attainable by conventional ink jet printing would present benefits in terms of performance, economics and the environment. Two laser-based techniques (selective laser ablation and photo-reduction) used in conjunction with ink jet printing to reduce feature size are demonstrated. Selective laser ablation of metallic silver tracks enabled feature sizes to be reduced to ∼5 μm, with good edge definition and little damage to glass substrates. Photo-reduction of organometallic silver salt deposits enabled features down to ∼10 μm, with no measurable heating of the substrate; enabling the use of a wide range of polymeric substrates. Both techniques show potential for reducing the feature size of ink jet printed deposits by an order of magnitude on flexible substrates.
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Document Type: Research Article

Publication date: 2006-01-01

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  • 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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