Immersion topcoat materials with improved performance

A topcoat material for applying on top of a photoresist material is disclosed. The topcoat material comprises at least one solvent and a polymer which has a dissolution rate of at least 3000 /second in aqueous alkaline developer. The polymer contains a hexafluoroalcohol monomer unit comprising one o...

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Main Authors ALLEN, ROBERT DAVID, GIL, DARIO, WALLRAFF, GREGORY MICHAEL, SUNDBERG, LINDA KARIN, BROCK, PHILLIP JOE, LARSON, CARL ERIC, HINSBERG, WILLIAM DINAN
Format Patent
LanguageChinese
English
Published 16.12.2006
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Summary:A topcoat material for applying on top of a photoresist material is disclosed. The topcoat material comprises at least one solvent and a polymer which has a dissolution rate of at least 3000 /second in aqueous alkaline developer. The polymer contains a hexafluoroalcohol monomer unit comprising one of the following two structures: wherein n is an integer. The topcoat material may be used in lithography processes, wherein the topcoat material is applied on a photoresist layer. The topcoat material is preferably insoluble in water, and is therefore particularly useful in immersion lithography techniques using water as imaging medium.
Bibliography:Application Number: TW200695105386