Lithographically Defined Cross-Linkable Top Coats for Nanomanufacturing with High‑χ Block Copolymers
The directed self-assembly (DSA) of block copolymers (BCPs) is a powerful method for the manufacture of high-resolution features. Critical issues remain to be addressed for successful implementation of DSA, such as dewetting and controlled orientation of BCP domains through physicochemical manipulat...
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| Veröffentlicht in: | ACS applied materials & interfaces 2021-03, Vol.13 (9), p.11224-11236 |
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| creator | Chevalier, Xavier Gomes Correia, Cindy Pound-Lana, Gwenaelle Bézard, Philippe Sérégé, Matthieu Petit-Etienne, Camille Gay, Guillaume Cunge, Gilles Cabannes-Boué, Benjamin Nicolet, Célia Navarro, Christophe Cayrefourcq, Ian Müller, Marcus Hadziioannou, Georges Iliopoulos, Ilias Fleury, Guillaume Zelsmann, Marc |
| description | The directed self-assembly (DSA) of block copolymers (BCPs) is a powerful method for the manufacture of high-resolution features. Critical issues remain to be addressed for successful implementation of DSA, such as dewetting and controlled orientation of BCP domains through physicochemical manipulations at the BCP interfaces, and the spatial positioning and registration of the BCP features. Here, we introduce novel top-coat (TC) materials designed to undergo cross-linking reactions triggered by thermal or photoactivation processes. The cross-linked TC layer with adjusted composition induces a mechanical confinement of the BCP layer, suppressing its dewetting while promoting perpendicular orientation of BCP domains. The selection of areas of interest with perpendicular features is performed directly on the patternable TC layer via a lithography step and leverages attractive integration pathways for the generation of locally controlled BCP patterns and nanostructured BCP multilayers. |
| doi_str_mv | 10.1021/acsami.1c00694 |
| format | Article |
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| source | ACS Publications |
| subjects | Chemical Sciences Condensed Matter Engineering Sciences Functional Nanostructured Materials (including low-D carbon) Materials Physics Polymers Soft Condensed Matter |
| title | Lithographically Defined Cross-Linkable Top Coats for Nanomanufacturing with High‑χ Block Copolymers |
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