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Room-Temperature Nanoimprint Lithography

Published online by Cambridge University Press:  01 February 2011

Ken-Ichiro Matsui  and
Shinji Matsui
Ken-Ichiro Matsui
Affiliation:
[email protected], University of Hyogo, 3-1-2 Koto kamigori, Ako, Hyogo, 678-1205, Japan
Shinji Matsui
Affiliation:
[email protected], University of Hyogo, 3-1-2 Koto kamigori, Ako,, Hyogo, 678-1205, Japan
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Abstract

Room-temperature nanoimprint lithography (RT-NIL) using spin-coated hydrogen silsesquioxane (HSQ) resin as the replication material was developed. HSQ pattern with 50 nm linewidth was successfully obtained by the RT-NIL. Postbaking temperature dependence of a HSQ imprinted depth on a mold linewidth was investigated. HSQ imprinted depth had a dependence on the mold linewidth. This revealed that the RT-NIL is suitable for the linewidths of below 1 mm. Furthermore, we have also developed a new imprinting technique that uses liquid-phase hydrogen silsesquioxane (HSQ) as an alternative to the spin-coated HSQ resin. The liquid-phase HSQ imprint technique enabled fabrication of various HSQ patterns with a wide range of linewidths from 25 nm to 300 mm. Arbitrary patterns, including both submicron and greater than 100 micron patterns, were simultaneously replicated with a one-step imprint process, something very difficult to accomplish with spin-coated HSQ. Moreover, after imprinting, the residual HSQ layer in the compressed area was less than 10 nm thick.

Keywords

nanostructurelithography (removal)nanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 961: Symposium O – Nanostructured and Patterned Materials for Information Storage , 2006 , 0961-O02-01
Copyright
Copyright © Materials Research Society 2007

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