“Printed electronics” has a number of significant challenges, including spatial resolution, pattern registration, and printed circuit performance. In this talk I will describe a patented liquid-based fabrication approach developed at Minnesota that we term SCALE, or Self-Aligned Capillarity-Assisted Lithography for Electronics. The SCALE process combines imprint lithography with inkjet printing and plating processes to produce self-aligned devices with feature sizes that are currently as small as 2 mm. Beyond the critical self-alignment aspect, SCALE offers a number of possible advantages for printed electronics manufacture including compatibility with roll-to-roll (R2R) manufacturing, excellent spatial resolution, conventional height-to-width aspect ratios for conductor lines, and sharp, well-defined line edges of all printed features. This talk will provide an update on the use of R2R SCALE to build arrays of discrete device components including resistors, capacitors, diodes, interconnects, and transistors. As SCALE relies on capillary flow of electronic inks in imprinted features, some important fundamentals of capillary flow, and practical innovations for controlling flow, will also be covered.<br/>

Progress toward a self-aligned, roll-to-roll additive manufacturing process for printed circuitry

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.