National Technology & Engineering Solutions of Sandia, LLC

Ethan Benjamin Secor

Bryan James Kaehr

Adam W Cook

Peter Randall Schunk

Michael Alfonso Gallegos

Chelsea M Garcia

Rebecca Rosa Tafoya

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.

Optical measurement system for real-time process monitoring of aerosol jet printing

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.

Architected stamps for liquid transfer printing

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.

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Ames, IA, United States of America

Ethan Benjamin Secor