Journal
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
Volume 27, Issue 1, Pages 19-22Publisher
A V S AMER INST PHYSICS
DOI: 10.1116/1.3039687
Keywords
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Funding
- National High Technology Research and Development Program [2006AA03Z352]
- Shanghai Municipal of Science and Technology [08QH14002]
- 985 Project
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In this work, a trilayer technique used in the nanoimprint lithography process to replicate the templates is developed. The SU8/SiO2/PMMA trilayer was used. The photosensitive epoxy (SU8 resist) which has a low glass transition temperature was used as the imprint layer. Polymethylmethacrylate (PMMA) was used as the transfer layer. A SiO2 layer is placed between the SU8 and PMMA to act as a protective layer due to-its strong resistance to oxygen reactive ion etching. By optimizing imprint and etching processes, master templates with minimum feature size of 150 nm and period of 300 nm can be successfully duplicated. (C) 2009 American Vacuum Society. [DOI: 10.1116/1.3039687]
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