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 | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
16.12.2006
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: TW200695105386 |