Pattern Transfer of Sub-10 nm Features via Tin-Containing Block Copolymers

Autor: Jeffrey R. Strahan, Michael J. Maher, Emir Gurer, Kazunori Mori, C. Grant Willson, Christopher J. Ellison, Gregory Blachut, William J. Durand, Stephen M. Sirard, Christopher M. Bates, Matthew C. Carlson, Lane Austin, Andrew M. Dinhobl
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Popis: Tin-containing block copolymers were investigated as materials for nanolithographic applications. Poly(4-trimethylstannylstyrene-block-styrene) (PSnS-PS) and poly(4-trimethylstannylstyrene-block-4-methoxystyrene) (PSnS-PMOST) synthesized by reversible addition–fragmentation chain transfer polymerization form lamellar domains with periodicities ranging from 18 to 34 nm. Thin film orientation control was achieved by thermal annealing between a neutral surface treatment and a top coat. Incorporation of tin into one block facilitates pattern transfer into SiO_2 via a two-step etch process utilizing oxidative and fluorine-based etch chemistries.
Databáze: OpenAIRE