Abstract: The present invention relates to architected stamps having beneficial printing properties. In particular, negative Poisson ratio structures and/or porous reservoirs can be employed to control fluid dynamics and to provide metered ink transfer.

Abstract: Aerosol jet printing is a popular digital fabrication method for flexible and hybrid electronics, but it lacks sophisticated process control architectures that would enable more widespread adoption in manufacturing environments. An optical measurement system can be used to track the aerosol density upstream of the printhead. For example, the measured optical extinction combined with the aerosol flow rate, is directly related to deposition rate and accurately predicts functional properties, for example electrical resistance. This real-time system offers a compelling solution for process drift and batch-to-batch variability, a valuable tool for more fundamental studies of the process science, and a viable technology to support real-time control of aerosol jet printing.

Abstract: An aerosol jet printhead comprising an in-line static mixer can mix multiple aerosol streams for co-deposition from a single nozzle. A printhead was designed, fabricated, and tested, demonstrating in-plane functionally graded films. The inline mixing printhead can be used with a compact aerosol jet deposition system.

Abstract: Aerosol jet printing offers a versatile, high-resolution capability for flexible and hybrid electronics. By integrating a flow-through ink cartridge with an ink recirculation system, ink composition and level within the cartridge are better maintained. This invention enables extended duration printing with improved deposition stability. This provides an important tool for extending the duration and improving reliability for aerosol jet printing, a key factor for integration of aerosol jet printing in practical manufacturing operations.

Abstract: Metal hydride nanoparticle inks provide an alternative to traditional metal inks. Metal hydride nanoinks can be printed by aerosol jet printing and cured at elevated temperatures to provide conductive patterns. As an example, printed patterns of titanium hydride nanoink on polyimide and cured by pulsed photonic curing were found to exhibit electrical conductivity, with a sheet resistance on the order of ˜150 ?/?.

Abstract: The present invention relates to architected stamps having beneficial printing properties. In particular, negative Poisson ratio structures and/or porous reservoirs can be employed to control fluid dynamics and to provide metered ink transfer.

Abstract: An aerosol jet printhead comprising an in-line static mixer can mix multiple aerosol streams for co-deposition from a single nozzle. A printhead was designed, fabricated, and tested, demonstrating in-plane functionally graded films. The inline mixing printhead can be used with a compact aerosol jet deposition system.