Photoresist and associated processes for microlithography

Positive photoresists and associated processes for microlithography in the ultraviolet (UV) and violet are disclosed. The photoresists comprise (a) a branched polymer containing protected acid groups and (b) at least one photoacid generator. The photoresists have high transparency throughout the UV,...

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Bibliographic Details
Main Author F. L. SCHADT III,M. FRYD,M. PERIYASAMY
Format Patent
LanguageEnglish
Published 12.04.2006
Subjects
APPARATUS SPECIALLY ADAPTED THEREFOR
BASIC ELECTRIC ELEMENTS
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS
MATERIALS THEREFOR
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
SEMICONDUCTOR DEVICES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:Positive photoresists and associated processes for microlithography in the ultraviolet (UV) and violet are disclosed. The photoresists comprise (a) a branched polymer containing protected acid groups and (b) at least one photoacid generator. The photoresists have high transparency throughout the UV, good development properties, high plasma etch resistance and other desirable properties, and are useful for microlithography in the near, far, and extreme UV, particularly at wavelengths less than or equal to 365 nm.
Bibliography:Application Number: CN19998002637