Results 211 to 220 of about 2,969 (232)
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Fabrication of Hierarchical 3D PDMS Molds by Replica Molding from Diatom Frustules
2018 IEEE 13th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2018This study presents a method to fabricate polydimethylsiloxane (PDMS) molds with hierarchical 3D structures by using the centric diatom, Coscinodiscus sp., as templates. The diatom frustules were immobilized on Si wafer, followed by casting the diluted PDMS on the substrate.
Mengjiao Wang, Cai Jun, Zhenhu Wang
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Replica molding of picosecond laser fabricated Si microstructures
Applied Physics A, 2007This work demonstrates the fast generation and rapid replication of laser-fabricated three-dimensional conical microstructures on single-crystalline silicon. Large areas containing Si structures are fabricated by fast scanning of the focussed laser beam of a high-power, high repetition rate infrared picosecond laser system over the Si surface, in the ...
C. Reinhardt +4 more
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Replica Mold for Nanoimprint Lithography from a Novel Hybrid Resin
Langmuir, 2009The use of durable replica molds with high feature resolution has been proposed as an inexpensive and convenient route for manufacturing nanostructured materials. A simple and fast duplication method, involving the use of a master mold to create durable polymer replicas as imprinting molds, has been demonstrated using both UV- and thermal ...
Lee, BK +4 more
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Approaching Zero: Using Fractured Crystals in Metrology for Replica Molding
Journal of the American Chemical Society, 2004This report presents a simple and convenient method to generate nanoscale fractures (cracks) in smooth, single-crystalline Si substrates. The cracks propagated as approximately straight lines along the {100} crystal planes with controllable length defined by a stabilizing backlayer.
Qiaobing, Xu +4 more
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Flexible Nonstick Replica Mold for Transfer Printing of Ag Ink
Journal of Nanoscience and Nanotechnology, 2016We report the fabrication of flexible replica molds for transfer printing of Ag ink on a rigid glass substrate. As mold precursors, acrylic mixtures were prepared from silsesquioxane-based materials, silicone acrylate, poly(propylene glycol) diacrylate, 3,3,4,4,5,5,6,6,7,7,8,8, 9,9,10,10,10-heptadecafluorodecyl methacrylate, and photoinitiator.
Bong Kuk, Lee +7 more
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Microelectronic Engineering, 2018
Abstract The aim of this paper is to fabrication of quasi-greyscale microstructures by curved surface soft magnetic mold. In this paper, a photocuring system is first developed and built independently, then created the magnetic curved surface microstructure soft mold, the magnetic force of the magnetic curved surface via to different heights was ...
Yung-Jin Weng, Chun-Yu Tsai
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Abstract The aim of this paper is to fabrication of quasi-greyscale microstructures by curved surface soft magnetic mold. In this paper, a photocuring system is first developed and built independently, then created the magnetic curved surface microstructure soft mold, the magnetic force of the magnetic curved surface via to different heights was ...
Yung-Jin Weng, Chun-Yu Tsai
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1962
Recent developments in replica optics techniques originally conceived by U. S. Army Engineer Research and Development Laboratories are of significance to the electroforming industry. Basically the replica process is a simple and low-cost method to produce high-quality replicas of complex surfaces.
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Recent developments in replica optics techniques originally conceived by U. S. Army Engineer Research and Development Laboratories are of significance to the electroforming industry. Basically the replica process is a simple and low-cost method to produce high-quality replicas of complex surfaces.
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Three dimensional metal pattern transfer for replica molded microstructures
Applied Physics Letters, 2009We report a replica molding process for simultaneously forming a three dimensional metal pattern on the surface of molded polymer microstructures. This technique uses noncovalent surface forces to guide the transfer of thin metal films from the three dimensional features of high aspect ratio poly(dimethylsiloxane) micromolds to polymeric replicates ...
Yanzhu Zhao +5 more
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Direct UV-Replica Molding of Biomimetic Hierarchical Structure for Selective Wetting
Journal of the American Chemical Society, 2008describe a one-step UV-replica molding method for fabricating a biomimetic dual-scale hierarchical structure. The use of UV-curable, acrylate-functionalized perfluoropolyethers allows for a high fidelity replication of a low-energy surface with multiscale texture, thereby directly creating a superhydrophobic surface without any complicated processing ...
Se-Jin, Choi, Kahp Y, Suh, Hong H, Lee
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Electrospun Fiber Template for Replica Molding of Microtopographical Neural Growth Guidance
Small, 2012A method for replica molding electrospun (ES) fibers on the surface of polydimethylsiloxane (PDMS) is developed for culturing and guiding of cells, instead of ES fibers. With this method, microgrooves and microstructures composed of microgrooves can be obtained.
Yingyi, Liu +6 more
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