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Direct Circuit Formation Technology using Electrophotography

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The application of printing technologies such as screen printing and ink jets should be an alternative for circuit formation technology in photolithography. We conducted work on the electrophotography method, which is one of these printing technologies used for laser printers and copiers, among other devices. This technology can achieve mass production with a continuous process and can form a large area pattern. Moreover, this technology is advantageous for producing many different kinds of limited pattern areas because changing the pattern is easy. In addition, the technology is also highly advantageous for forming a high-density pattern because the stroke width depends on not the drops (e.g., ink jet) but on an electrostatic latent image and the particle size.

Metallic wiring by electrophotography has problems with electrification of metallic particles and conductive wiring because of low temperature heating. We examined a method of direct patterning of metallic nanoparticles that were ion electrified in liquid by liquid development. Afterwards, the pattern was baked at a low temperature to make it a conductor. The results were that we achieved a formation and transcription of a fine metallic wiring pattern with a width of 10 μm on an organic substrate.

Document Type: Research Article

Publication date: 2007-01-01

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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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