Rapid fabrication of microdevices using laser direct writing and replica moulding technique

被引:0
|
作者
Antonczak, A. J. [1 ]
Stepak, B. D. [2 ]
Abramski, K. M. [1 ]
机构
[1] Wroclaw Univ Technol, Fac Elect Engn, Laser & Fibre Elect Grp, Wyb Wyspianskiego 27, PL-50370 Wroclaw, Poland
[2] Wroclaw Univ Technol, Fac Microsyst Elect & Photon, Wyb Wyspianskiego 27, PL-50370 Wroclaw, Poland
来源
关键词
microfluidics; Lab On a Chip; laser micromachining; polydimethylsiloxane PDMS; replica moulding;
D O I
10.1117/12.2218531
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
This paper presents a method that enables fast and low-cost fabrication of microchannels with oval cross-section. The procedure is based on formation of a concave meniscus at the interface between an initially cured PDMS and a polymeric mould fabricated using excimer laser. The replica is formed by expanding gas trapped within the structures of the mould during thermal curing. A second shaping factor is connected with surface phenomena at the interface between the mould, gas and partially cured PDMS. The final shape of the meniscus is determined when the PDMS reaches the high cure extent.
引用
收藏
页数:6
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