Journal
JOURNAL OF PHOTOPOLYMER SCIENCE AND TECHNOLOGY
Volume 34, Issue 1, Pages 117-121Publisher
TECHNICAL ASSOC PHOTOPOLYMERS,JAPAN
Keywords
EUV; Photoresist; Antimony; Carboxylate; Olefin; Crosslinked
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This study investigates two approaches - replacing phenyl groups with methyl groups and increasing the number of polymerizable olefins - to improve the lithographic performance of antimony-carboxylate complexes containing polymerizable olefins.
Many antimony-carboxylate complexes containing polymerizable olefins are highly sensitive EUV photoresists. Herein we report two approaches by which we explored the reactivity of polymerizable olefin antimony carboxylate photoresists to improve lithographic performance. First, we explored the effect of replacing three phenyl groups with methyl groups in an effort to increase the relative concentration of olefins vs. size of the molecule. Second, we explored the effect of increasing the number of polymerizable olefins from two to five. This approach examines the use of tris(4-vinylphenyl)antimony-dicarboxylate complexes as photoresists and the developer chemistry capable of patterning highly crosslinked substrates.
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