STUDY ON THE UNIFORMITY OF MICRO ELECTROFORMING MOLD INSERT USED IN MICRO FLUIDIC-CHIP FABRICATION
In the paper, a theoretical investigation was presented, which is used to explain the effect of pulse-reverse current on uniformity in micro-electroforming. And micro-electroforming experiments of two different pulse-reverse currents with gaps in positive direction were carried out correspondingly. The mold inserts used in micro fluidic-chip were micro-electroformed in these experiments, and its feature width is 90um. No backing process was adopted, which mainly consisted of three procedures. Two different pulse-reverse currents used in these experiments were pulse-reverse current with gaps in both positive and negative direction, and pulse-reverse current with gaps only in positive direction, respectively. The fundamental parameters of these experiments were summarized from lots of micro-electroforming experiments of pulse current. After experiments, comparisons were carried out between the results of pulse-reverse current experiments and pulse current experiment. Because negative current could erode the tips on electroforming surface, better uniformity was obtained in these experiments using pulse-reverse currents. The experimental results were consistent with the theoretical investigation.
uniformity Fick second law pulse-reverse current micro fluidic-chip
Liqun Du Haijun Liu Chong Liu Shenmiao Zhu Jiang Qin
Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dali Key Laboratory for Micro/Nano Technology and System of Liao Ning Provine,Dalian University of Techno Key Laboratory for Precision and Non-traditional Machining Technology of Ministry of Education, Dali
国际会议
海南三亚
英文
2007-01-10（万方平台首次上网日期，不代表论文的发表时间）