Femtosecond Micromachining of Ceramic Fibers for Electric Contact Soldering

Paipulas, Domas; Alesenkov, Aleksandr; Chazevskis, Gediminas; Ragulis, Paulius; Sirutkaitis, Valdas; Goštauto, A.

doi:10.2961/jlmn.2013.03.0020

Cited by 1 publication

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“…It was automated via "Altechna R&D" software AltSca. 10,14 The sample was held employing special vacuum chuck holder. The beam was focused using 10x NA=0.3 objective lens which was 68% transparent for the applied ligth wavelength.…”

Section: Direct Laser Writing (Subtractive Manufacturing)mentioning

confidence: 99%

Multiscale 3D manufacturing: combining thermal extrusion printing with additive and subtractive direct laser writing

et al. 2014

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A novel approach for efficient manufacturing of three-dimensional (3D) microstructured scaffolds designed for cell studies and tissue engineering applications is presented. A thermal extrusion (fused filament fabrication) 3D printer is employed as a simple and low-cost tabletop device enabling rapid materialization of CAD models out of biocompatible and biodegradable polylactic acid (PLA). Here it was used to produce cmscale microporous (pore size varying from 100 to 400 µm) scaffolds. The fabricated objects were further laser processed in a direct laser writing (DLW) subtractive (ablation) and additive (lithography) manners. The first approach enables precise surface modification by creating micro-craters, holes and grooves thus increasing the surface roughness. An alternative way is to immerse the 3D PLA scaffold in a monomer solution and use the same DLW setup to refine its inner structure by fabricating dots, lines or a fine mesh on top as well as inside the pores of previously produced scaffolds. The DLW technique is empowered by ultrafast lasersit allows 3D structuring with high spatial resolution in a great variety of photosensitive materials. Structure geometry on macro-to micro-scales could be finely tuned by combining these two fabrication techniques. Such artificial 3D substrates could be used for cell growth or as biocompatible-biodegradable implants. This combination of distinct material processing techniques enables rapid fabrication of diverse functional microfeatured and integrated devices. Hopefully, the proposed approach will find numerous applications in the field of tissue engineering, as well as in microelectromechanical systems, microfluidics, microoptics and many others.

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Section: Direct Laser Writing (Subtractive Manufacturing)mentioning

confidence: 99%