A precision desktop plate-to-roll apparatus for development of advanced flexographic printing processes

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Flexographic printing, which involves high-speed contact of an inked stamp against a substrate, is of increasing interest for scalable manufacturing of electronics in new formats. However, the adaptation of flexography to thinner, finer features which are generally required for printed electronics requires improved understanding of stamp-substrate contact mechanics. Here, we present a desktop plate-to-roll (P2R) printing apparatus which enables the study of flexographic printing in a semi-continuous format that mimics industrial printing. In particular, we tailor the specifications of the machine to use nanoporous stamps which have been shown to enable flexographic printing of ultrathin ink features with micron-scale linewidth. Printing with nanoporous stamps requires precise control of stamp-substrate contact force (2-250 mN) and elimination of shear force at the interface among others; these are accomplished using a flexure-supported substrate, and by coordinated rotary-linear motion of the system. We detail the design and evaluation of the P2R machine and demonstrate printing of high-resolution features (<3 mu m line width) with nanopomus stamps at speeds of up to 0.2 m/s.
Publisher
ELSEVIER SCIENCE INC
Issue Date
2020-11
Language
English
Article Type
Article
Citation

PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY, v.66, pp.392 - 400

ISSN
0141-6359
DOI
10.1016/j.precisioneng.2020.07.012
URI
http://hdl.handle.net/10203/279182
Appears in Collection
ME-Journal Papers(저널논문)
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