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Proceedings Paper

Extreme-ultraviolet and electron beam lithography processing using water developable resist material
Author(s): Satoshi Takei
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Paper Abstract

In order to achieve the use of pure water in the developable process of extreme-ultraviolet and electron beam lithography, instead of conventionally used tetramethylammonium hydroxide and organic solvents, a water developable resist material was designed and developed. The water-developable resist material was derived from woody biomass with beta-linked disaccharide unit for environmental affair, safety, easiness of handling, and health of the working people. 80 nm dense line patterning images with exposure dose of 22 μC/cm2 and CF4 etching selectivity of 1.8 with hardmask layer were provided by specific process conditions. The approach of our water-developable resist material will be one of the most promising technologies ready to be investigated into production of medical device applications.

Paper Details

Date Published: 31 August 2017
PDF: 7 pages
Proc. SPIE 10354, Nanoengineering: Fabrication, Properties, Optics, and Devices XIV, 1035414 (31 August 2017); doi: 10.1117/12.2271024
Show Author Affiliations
Satoshi Takei, Toyama Prefectural Univ. (Japan)
Osaka Univ. (Japan)

Published in SPIE Proceedings Vol. 10354:
Nanoengineering: Fabrication, Properties, Optics, and Devices XIV
Eva M. Campo; Elizabeth A. Dobisz; Louay A. Eldada, Editor(s)

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