Browsing by Author "Yang, Sen-Yeu"

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Fabrication of Microlens Arrays by Using Nano-Particle Fluid Imprinting Technology
(2009)
Weng, Yung-Jin
;
Weng, Yung-Chun
;
Huang, Jen-Ching
;
Wong, Yong-Cheng
;
Yang, Sen-Yeu
In this study, we look into an innovative technology which utilizes nano-particles as a medium for imprinting. This technology integrates the advantages of soft lithography, photo-cure resist, and gas assisted imprinting. We try to produce micro-lens arrays by gas-assisted nano-particles based soft mould imprinting on photo-cure resists. It helps the application and technology of nano-imprinting becoming more sophisticated. We rind that PDMS can be used to precisely replicate micro-to-nano-meter level micro-structures. Together with nano-particles and well-proportioned gas pressure, we can construct a perfect shape of micro-structures and achieve a conformal contact with the surface of base material. It increases the effective imprinting area significantly and improves the replication capability of the transfer. Meanwhile, the PDMS soft mould is easy for production and fast in replication, which reduces the cost remarkably. Furthermore, it has a low surface free energy and low viscosity to the resists. Integrating gas assisted nano-particles imprinting can be a great advantage in the process of micro-structure.
Fabrication of Optical Waveguide Devices Using Electromagnetic Assisted Nanoimprinting
(2009)
Weng, Yung-Jin
;
Weng, Yung-Chun
;
Wong, Yong-Cheng
;
Yang, Sen-Yeu
;
Liu, Hsu-Kang
A creative technology was used in this research. Using the PDMS flexible mold magnetic powder method to transmit imprinting, and by combining the special characteristics of the soft lithography, polymethylmethacrylate (PMMA), and electromagnetic Plate uniform control pressing technology, researching the use of magnetic flexible mold imprinting technology to produce the optical waveguide devices, so as to allow the usage and the technology of micro hot embossing or nanoimprinting more mature.