Dave Keicher - Aerosol-Based Process and Apparatus for Stable Production-Level Printing

Session 19: 3D Printing

Aerosol-Based Process and Apparatus for Stable Production-Level Printing of Electronic Inks
Thursday, June 22, 2017 
9:05 AM - 9:25 AM

Sandia National Labs and IDS are collaborating to develop a production-level process and apparatus for stable, repeatable deposition of conductive, resistive, and insulating inks for Flexible Electronic Printing applications. A secondary goal of the collaboration is the provision of a commercial system for Direct Write Electronic (DWE) applications at a fraction of the cost of developing DWE systems. The technology, Mycrojet, is based on a patented Sandia Labs method for focusing aerosol particles using a series of aerodynamic lenses. The Mycrojet print head uses a sheathed aerosol flow that propagates through at least two aerodynamic lenses matched to an aerosol droplet size distribution, and is capable of printing high-definition traces with line widths of approximately 10 to 1000 microns. The technology has been used to print embedded sensors, 3D capacitors, and Direct Write copper traces. The Mycrojet system routinely demonstrates unassisted run times of more than four hours, and is capable of unassisted, continuous printing of high-quality traces for more than eight hours. The relative standard deviation (the ratio of standard deviation to the average) of the physical and electrical properties of printed traces is typically less than 5%. A detailed description of the Mycrojet process and apparatus will be presented, including a discussion of the focusing principles, a characterization of trace micrographs and electrical properties, and an analysis of printing stability tests.


Speaker's Biography

Mr. Keicher has a MS in Electrical Engineering from The University of New Mexico. He is currently a Principal Member of the Technical Staff at Sandia National Laboratories. He is a founder of Optomec and has been involved with several start up ventures.


Dave Keicher
Sandia National Laboratories