Optimisation Of Aerosol Jet Deposition For High-Resolution Selective Patterning Of Silver Tracks

Aerosol jet deposition is a digital direct-write additive manufacturing technique capable of producing high resolution and highly customisable electronic and biological functional devices on both two- and three-dimensional substrates. This technology offers important market opportunities in the production of consumer electronics, semiconductor packaging, display technology, aerospace and defence, automotive and life sciences. However, for these opportunities to be realised there is a necessity for greater understanding of how deposition process parameters influence deposition quality. This study has explored the effects of a number of these parameters and their influence on the geometry of printed features. The results of this work outline the operating windows for several deposition parameters including carrier gas flow rate, stage speed working distance and stage temperature. Additionally, a number of relationships have been identified linking deposition parameters to the geometry of printed features.