Premier research and commercialization organization Applied Nanotech announced it has been awarded two noteworthy patents in the field of inks and pastes for the printed electronics industry – an industry that is growing as companies adapt to additive manufacturing processes. Applied Nanotech’s two new patents relate to the company’s copper inks, which have the potential to replace more expensive silver inks that are currently commonplace in the market.
Issued on March 26, 2013, U.S. Patent No. 8,404,160 claims the composition of Applied Nanotech’s award-winning copper nanoinks without the utilization of a binder material. This exclusion of a binder material from the formulation of the copper nanoink tolerates improved drying and photosintering mechanisms that result in increased electrical conductivity and stability of copper traces. This patent is assigned to both Applied Nanotech and its licensee Ishihara Chemical Co. Ltd.
Issued on April 16, 2013, U.S. Patent No. 8,422,197 claims the utilization of optical energy (independent of wavelength) for achieving sintered layers of fused nanoparticle materials with predetermined degree of porosity – a method that claims at least its utilization for one layer of copper nanoparticles as well as one layer of silicon nanoparticles and their combinations. This patent is solely controlled by Applied Nanotech and is anticipated to open new licensing and business opportunities in the near future.
Though utilizing optical energy to achieve sintering of nanoparticle-based materials has recently been gaining market penetration, low temperature thermal sintering is necessary and even required in many instances. At the upcoming Printed Electronics 2013 Conference, taking place in Berlin, Applied Nanotech will introduce a novel formulation of copper nanoink that is suitable for thermal sintering at temperatures of 250 degrees Celsius and lower. This new formulation will have the ability to compete with, and ultimately replace, silver inks that are currently used exclusively in the offset printing industry.
For further information, visit www.appliednanotech.net
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