光學薄膜之壓印

鄧哲明

doi:10.6846/TKU.2007.01000

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College of Engineering > Master's Program, Department of Mechanical and Electro-Mechanical Engineering
Engineering > Mechanical Engineering
Engineering > Electrical Engineering

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光學薄膜之壓印

Imprinting of Optical-Film

鄧哲明 , Masters　　Advisor：林清彬　　

繁體中文 DOI： 10.6846/TKU.2007.01000

滾壓；矽橡膠；光學薄膜；聚二甲基矽氧烷；模帶； Roll imprint ； Silicon rubber ； Optical-film ； Polydimethylsiloxane(PDMS) ； Tape

Abstract │ Reference (25) │ Altmetrics

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This thesis investigates the development of imprint equipment in transferring micro-structure. By using the material of silicon based rubber, UV-curable polymer resin and the technology of UV-curing process, we can obtain a well transfer micro-structure in a continuous imprint molding process at low-pressure and low-temperature. We also develop a method for making a new type of tape-mold with micro-structure on its surface. Using the injection way, we make the micro-structure directly on the soft-rubber tape and roller, which want to substitute for the traditional hot embossing roller mold. In the Roll to Roll forming technology, we expect to develop an innovative imprinting method to apply in the continuous molding process.
    In finding the material to make the micro-structure mold, we discover that PDMS (Type 184) and silicon rubber (Type 921) can duplicate the surface structure in micro-scale perfectly because of the well fluidity before solidification. After making those materials into micro-structure tape-molds, these tape-molds can work smoothly in imprint structure. But during the process of making these elastic-molds, we need to consider the roundness, straightness and surface roughness in the micro-structure roller mold and tape mold, in order to avoid the non-uniformity in imprint process and the incomplete filling with UV-curable resin in some part of imprint area. In this investigation we discuss defects of elastic tape-mold and roller-mold that these defects probably produce during the injection and solidification process and the influence of these defects on the forming products.
    In the work of designing imprint machine using tape-mold, we find out that the design of the roller pressure control mechanism and the web tension control system influence the distortion of molding structure and the uniformity of molding products directly. The coating system also needs adjusted, or the non-uniformity of thickness in resin coating will affect the imprint products directly. For various optical film molding in different condition, we probe into the various reasons why defects produce and improvement of these defects. We also discuss the anti-sticking effect, which hope can extend the mold’s imprint times, on the imprint mold of the micro-structure.

Reference ( 25 ) 〈TOP〉

1. Stephen Y. Chou, Krauss P.R., Renstrom P.J. "Nanoimprint lithography", J. Vac. Sci. Technol. B, 14, pp. 4129-4133, 1996.
連結：
3. Narasimhan, J. and Papautsky, I., Polymer embossing tools for rapidprototyping of plastic microfluidic devices, J. Micromech. Microeng, Vol. 14,pp. 96-103 (2004).
連結：
4. Xia Y., Whitesides, G. M. "Soft Lithography", Angew. Chem. Int. Ed., 37, pp.550-575, 1998.
連結：
6. Myers, D., Surfaces, Interfaces, and Colloids, VCH, New York,pp. 87-109.( 1991)
連結：
7. Arias, F., Oliver, S.R.J., Xu, B., Holmlin, R.E., Whitesides, G.M., “ Fabrication of metallic heat exchangers using sacrificial polymer mandrils”, Journal of Microelectromechanical Systems, VOL. 10, NO. 1,pp. 107-112 (2001).
連結：

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