Cross-linked polymer replica of a nanoimprint mold at 30 nm half-pitch.

Ge, Haixiong; Wu, Wei; Li, Zhiyong; Jung, Gun-Young; Olynick, Deirdre; Chen, Yanfeng; Liddle, J Alexander; Wang, Shih-Yuan et al. · Nano Lett · 2005

basic_science · Level V

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Abstract

This letter reports the demonstration of a photocurable polymer process for replicating the master mold for nanoimprint lithography. The cross-linked polymer mold was fabricated directly with high fidelity from a master by imprinting and photocuring a low viscosity liquid prepolymer film spun onto a substrate. The surface of the cross-linked polymer mold can be treated using an O(2) plasma, and then vapor primed with a low surface energy mold release layer for repeatable imprinting. The imprinting results demonstrated that the cross-linked polymer mold could be faithfully used for both thermal and photocurable nanoimprint lithography.