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Proceedings Paper

Laser decal transfer of electronic materials with thin film characteristics
Author(s): Alberto Piqué; Raymond C. Y. Auyeung; Kristin M Metkus; Heungsoo Kim; Scott Mathews; Thomas Bailey; Xianhai Chen; Lydia J. Young
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Paper Abstract

We describe a novel technique, called laser decal transfer, for the laser forward transfer of electronic inks that allows the non-contact direct writing of thin film-like patterns and structures on glass and plastic substrates. This technique allows the direct printing of materials such as metallic nano-inks from a donor substrate to the receiving substrate while maintaining the size and shape of the area illuminated by the laser transfer pulse. That is, the area of the donor substrate or ribbon exposed to the laser pulse releases an identical area of nano-ink material which retains its shape while it travels across the gap between the ribbon and the receiving substrate forming a deposited pattern of the same dimensions. As a result, this technique does not exhibit the limited resolution, non-uniform thickness, irregular edge features and surrounding debris associated with earlier laser forward transfer techniques. Continuous and uniform metallic lines typically 5 micrometers or less in width, and a few hundred nanometers in thickness were fabricated by laser decal transfer. These lines are of similar scale as patterns generated by lithographic techniques. Once transferred, the lines are laser-cured in-situ using a CW laser beam, becoming electrically conductive with resistivities as low as 3.4 μΩ cm. This novel laser direct-write technique is a significant improvement in terms of quality and fidelity for directwrite processes and offers great promise for electronic applications such as in the development, customization, modification, and/or repair of microelectronic circuits.

Paper Details

Date Published: 20 February 2008
PDF: 8 pages
Proc. SPIE 6879, Photon Processing in Microelectronics and Photonics VII, 687911 (20 February 2008); doi: 10.1117/12.779672
Show Author Affiliations
Alberto Piqué, Naval Research Lab. (United States)
Raymond C. Y. Auyeung, Naval Research Lab. (United States)
Kristin M Metkus, Naval Research Lab. (United States)
Heungsoo Kim, Naval Research Lab. (United States)
Scott Mathews, Naval Research Lab. (United States)
Thomas Bailey, Photon Dynamics, Inc. (United States)
Xianhai Chen, Photon Dynamics, Inc. (United States)
Lydia J. Young, Photon Dynamics, Inc. (United States)

Published in SPIE Proceedings Vol. 6879:
Photon Processing in Microelectronics and Photonics VII
David B. Geohegan; Andrew S. Holmes; Michel Meunier; Frank Träger; Craig B. Arnold; Jan J. Dubowski; Hiroyuki Niino, Editor(s)

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