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Wetting Challenges in Cleaning of High Aspect Ratio Nano-Structures
Abstract:
In semiconductor fabrication, pattern collapse of high aspect ratio structures after wet processing has been a critical issue and attracted a lot of interest. On the other hand, very little attention is spent on the potential wetting issues as feature dimensions are continuously scaled down and novel materials with different wetting properties are used in new technology nodes. In this work we investigate the wettability of nanopatterned silicon substrates with different surface modifications.
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Periodical:
Pages:
235-238
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Online since:
December 2012
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