Department of Materials Science & Metallurgy Seminar Series: Self-Aligned, Roll-to-Roll Compatible Manufacturing of Printed Conductors and Devices

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• Prof. C. Daniel Frisbie, Department of Chemical Engineering & Materials Science, University of Minnesota, USA
• Thursday 17 October 2024, 15:30-17:00
• Goldsmiths' 2 & https://zoom.us/j/96836714124.

If you have a question about this talk, please contact Caroline Teagle.

Refreshments and cakes will be available!

C. Daniel Frisbie is Distinguished McKnight University Professor of Chemical Engineering & Materials Science at the University of Minnesota. He was Head of CEMS from 2014-2024. He obtained a PhD from MIT in 1993 and was an NSF Postdoctoral Fellow at Harvard. His research focuses on materials for printed electronics, including organic semiconductors and their applications in transistors. Research topics include thin film semiconductor devices, structure-property relationships, electrolyte-gating, molecular electronics, and scanning probe microscopy.

Printed electronics has significant challenges, including spatial resolution, pattern registration, and printed circuit performance. This talk will describe a patented liquid-based fabrication approach developed at Minnesota (with colleague Lorraine Francis) 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 µm. SCALE offers a number of 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 devices 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.

This talk is part of the Department of Materials Science & Metallurgy Goldsmiths' Seminars series.

This talk is included in these lists:

• Department of Materials Science & Metallurgy Goldsmiths' Seminars
• Goldsmiths' 2 & https://zoom.us/j/96836714124

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