Journal
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
Volume 21, Issue 9, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0960-1317/21/9/097001
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Funding
- National Research Foundation of Korea (NRF) [20100012897]
- Ministry of Education, Science and Technology (MEST, World Class University) [R31-2008-000-10026-0]
- institute of Medical System Engineering (iMSE) in the GIST, Republic of Korea
- National Research Foundation of Korea [R31-2011-000-10026-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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This note presents a simple fabrication process for patterning micro through-holes in a PDMS layer by a combination of the micromolding in capillaries (MIMIC) method and the surface treatment by atmospheric-pressure CH4/He RF plasma. The fabrication process is confirmed by forming micro through-holes with various shapes including circle, C-shape, open microfluidic channel and hemisphere. All micro through-holes of various shapes in a wide range of diameters and heights are well fabricated by the proposed method. Also, a 3D micromixer containing a PDMS micro through-hole layer formed by the proposed method is built and its performance is tested as another practical demonstration of the proposed fabrication method. Therefore, we believe that the proposed fabrication process will build a PDMS micro through-hole layer in a simple and easy way and will contribute to developing highly efficient multi-layered microfluidic systems, which may require PDMS micro through-hole layers.
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