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Title: Conductive lithographic films
Authors: Ramsey, BJ
Evans, PSA
Harrison, DJ
Keywords: Circuit boards;Film circuits;Conductive inks;Lithography;Microwave striplines
Issue Date: 1997
Publisher: IEEE
Citation: IEEE Intl. Symposium on electronics and the environment, 5th - 7th May 1997, San Francisco, California, USA.
Abstract: This paper reports progress in the development of a novel fabrication technique for printing circuit board designs directly onto suitable substrates. Circuit tracks can be formed on organic or synthetic substrates by depositing films of a metal-loaded ink via a standard lithographic printing process. The application of this work is in substitutes for conventional (copper-clad resin/laminate) circuit boards where, for low complexity circuits, directly printed substrates offer cost advantages and environmental benefits. The paper is a resume of work and results, including; ink formulation, environmental test, circuit modelling and life cycle analysis. Conductive lithographic films have now been successfully demonstrated in a telephone handset developed in conjunction with Nortel, microprocessor and microwave stripline applications. Whilst developed primarily as a low cost, low environmental impact alternative to subtractive PCB manufacture, other potential advantages such as flexibility and environmental robustness are apparent.
ISBN: 0-7803-3808-1
Appears in Collections:Design
Dept of Design Research Papers

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