Novel hybrid organic-inorganic spin-on resist for electron- or photon-based nanolithography with outstanding resistance to dry etching.

Zanchetta, Erika; Giustina, Gioia Della; Grenci, Gianluca; Pozzato, Alessandro; Tormen, Massimo; Brusatin, Giovanna · Adv Mater · 2013

basic_science · Level V

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Abstract

A new spin-on alumina-based resist exhibits excellent performance in terms of both achievable lateral resolution and etch resistance in fluorine-based non-cryo-cooled dry etching processes. The resist has selectivity greater than 100:1 with respect to the underlying silicon during the etching process, patternability with various lithographic tools (UV, X-rays, electron beam, and nanoimprint lithography), and positive and negative tone behavior depending only on the developer chemistry.