COMPOSITION FOR FORMING FINE RESIST PATTERN, AND PATTERN FORMATION METHOD USING SAME

The present invention provides a composition enabling to form a fine negative photoresist pattern less suffering from surface roughness, and also provides a pattern formation method employing that composition. The composition is used for miniaturizing a resist pattern by fattening in a process of fo...

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Bibliographische Detailangaben
Hauptverfasser: YAMAMOTO KAZUMA, KOBAYASHI MASAKAZU, SEKITO TAKASHI, ISHII MASAHIRO, SATAKE NOBORU, NAGAHARA TATSURO
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention provides a composition enabling to form a fine negative photoresist pattern less suffering from surface roughness, and also provides a pattern formation method employing that composition. The composition is used for miniaturizing a resist pattern by fattening in a process of forming a positive resist pattern from a chemically amplified positive-working type resist composition, and it contains a polymer comprising a repeating unit having an amino group, a solvent, and an acid. In the pattern formation method, the composition is cast on a positive photoresist pattern beforehand obtained by development and is then heated to form a fine pattern.