Direct laser fabrication of meso-scale 2D and 3D architectures with micrometric feature resolution

Angelo Accardo 1 Rémi Courson 2 Roberto Riesco 1 Vincent Raimbault 3 Laurent Malaquin 1
1 LAAS-ELIA - Équipe Ingénierie pour les sciences du vivant
LAAS - Laboratoire d'analyse et d'architecture des systèmes
2 LAAS-TEAM - Service Techniques et Équipements Appliqués à la Microélectronique
LAAS - Laboratoire d'analyse et d'architecture des systèmes
3 LAAS-MICA - Équipe MICrosystèmes d'Analyse
LAAS - Laboratoire d'analyse et d'architecture des systèmes
Abstract : The realization of 2D and 3D meso-scale architectures is an area of research involving a wide range of disciplines ranging from materials science, microelectronics, phononics, microfluidics to biomedicine requiring millimeter to centimeter-sized objects embedding micrometric features. In the recent years, several technologies have been employed to provide optimal features in terms of object size flexibility, printing resolution, large materials library and fabrication speed. In this work, we report a fully customizable single-photon absorption 3D fabrication methodology based on direct laser fabrication. To validate this approach and highlight the versatility of the setup, we have fabricated a comprehensive ensemble of 2D and 3D designs with potential applications in biomimetics, 3D scaffolding and microfluidics. The high degree of tunability of the reported fabrication system allows tailoring the laser power, slicing and fabrication speed for each single area of the design. These unique features enable a rapid prototyping of millimeter to centimeter-sized objects involving 3D architectures with true freestanding subunits and micrometric feature reproducibility. The presented strategy fills indeed the current technological gap related to the development of meso-scale architectures required in multidisciplinary fields of research.
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https://hal.laas.fr/hal-01875364
Contributor : Rémi Courson <>
Submitted on : Monday, September 17, 2018 - 11:50:22 AM
Last modification on : Friday, January 10, 2020 - 9:10:19 PM

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Angelo Accardo, Rémi Courson, Roberto Riesco, Vincent Raimbault, Laurent Malaquin. Direct laser fabrication of meso-scale 2D and 3D architectures with micrometric feature resolution. Additive Manufacturing, Elsevier, 2018, 22, pp.440 - 446. ⟨10.1016/j.addma.2018.04.027⟩. ⟨hal-01875364⟩

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