20 March 2007 Laser-assisted maskless fabrication of flexible electronics
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The low temperature fabrication of active (field effect transistor) electrical components on flexible polymer substrates is presented in this paper. A drop-on-demand (DOD) ink-jetting system was used to print gold nano-particles suspended in organic solvent, PVP (poly-4-vinylphenol) in PGMEA (propylene glycol monomethyl ether acetate) solvent, semiconductor polymer in organic solvent to fabricate passive and active electrical components on flexible polymer substrates. Short pulsed laser ablation enabled finer electrical components to overcome the resolution limitation of inkjet deposition. Continuous Argon ion laser was irradiated locally to evaporate the carrier solvent as well as to sinter gold nano-particles. In addition, a new method for the selective ablation of multilayered gold nanoparticle film was demonstrated.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Costas P. Grigoropoulos, Costas P. Grigoropoulos, Seung Hwan Ko, Seung Hwan Ko, Heng Pan, Heng Pan, Jaewon Chung, Jaewon Chung, Dimos Poulikakos, Dimos Poulikakos, } "Laser-assisted maskless fabrication of flexible electronics", Proc. SPIE 6459, Laser-based Micro- and Nanopackaging and Assembly, 64590V (20 March 2007); doi: 10.1117/12.697336; https://doi.org/10.1117/12.697336

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