Bottom antireflective coating composition and method for use thereof

The present invention discloses an antireflective coating composition for applying between a substrate surface and a photoresist composition. The antireflective coating composition of the present invention comprises a polymer, which includes at least one monomer unit containing a lactone moiety and...

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Bibliographische Detailangaben
Hauptverfasser: LI WENJIE, VARANASI PUSHKARA R, PATEL KAUSHAL, KHOJASTEH MAHMOUD, KWONG RANEE W, CHEN KUANG-JUNG J
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention discloses an antireflective coating composition for applying between a substrate surface and a photoresist composition. The antireflective coating composition of the present invention comprises a polymer, which includes at least one monomer unit containing a lactone moiety and at least one monomer unit containing an absorbing moiety. The inventive antireflective coating composition is preferably organic solvent-strippable, insoluble in an aqueous alkaline developer for the photoresist composition after exposure to an imaging radiation, and inert to contact reactions with the photoresist composition. The present invention also discloses a method of forming patterned material features on a substrate using the compositions of the invention.