Bioresorbable electronic devices are currently fabricated by complex and expensive vacuum-based Integrated Circuits (IC) processes. In this paper, we report a low-cost manufacturing approach for bioresorbable conductors on bioresorbable polymer substrates by evaporation-condensation-mediated laser printing and sintering of Zn nanoparticle. Laser sintering of Zn nanoparticles has been technically difficult due to the readily formation of surface oxide. We report a novel way to print and sinter Zn nanoparticle on low temperature substrate facilitated by evaporation-condensation in confined domain. This new approach circumvents the surface oxide, which notoriously hinders the nanoscale sintering process. The entire metallization process can be realized in non-vacuum environment allowing easy integration on a roll-to-roll production platform for economical manufacturing of bioresorbable electronics.
Heng Pan, "Laser printing and sintering of Zn nanoparticles for bioresorbable electronics (Conference Presentation)," Proc. SPIE 10520, Laser-based Micro- and Nanoprocessing XII, 1052014 (Presented at SPIE LASE: February 01, 2018; Published: 14 March 2018); https://doi.org/10.1117/12.2291280.5751456431001.
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