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http://dx.doi.org/10.6110/KJACR.2015.27.10.552

Fabrication of Three-Dimensional Micro Optical and Fluidic System Using Dual Stage Nanostereolithography Process  

Lim, Tae Woo (Department of Mechanical Engineering, KAIST)
Yang, Dong-Yol (Department of Mechanical Engineering, KAIST)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.27, no.10, 2015 , pp. 552-557 More about this Journal
Abstract
The nanostereolithography process using a femtosecond laser has been shown to have strong merits for the direct fabrication of 2D/3D micro structures. In addition, a femtosecond laser provides efficient tools for precise micromachining owing to the advantages of a small and feeble heat effect zone. In this paper, we report an effective fabrication process of 3D micro optical and fluidic devices using nanostereolithography process composed of a dual stage system. Process conditions for additive and subtractive fabrication are examined. The Piezo stage scanning system is used for 3D micro-fabrication in unit area of sub-mm scale, and the motor stage is employed in fabrication on the scale of several mm. The misalignment between the pizeo- and motor- stages is revised through rotational transformation of CAD data in the unit domain. Here, the effectiveness of the proposed process is demonstrated through examples using 3D optical and microfluidic structures.
Keywords
Femtosecond laser; 3D microstructure; Dual Stage; Two-photon polymerization;
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