Radiation-sensitive resin composition

A radiation-sensitive resin composition comprising (a) a resin represented by a copolymer of p-hydroxystyrene and t-butyl (meth)acrylate and a copolymer of p-hydroxystyrene and p-t-butoxystyrene, (b) a photoacid generator, and (c) a quaternary ammonium salt compound represented by tetramethylammoniu...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: NUMATA JUN, CHIBA TAKASHI
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A radiation-sensitive resin composition comprising (a) a resin represented by a copolymer of p-hydroxystyrene and t-butyl (meth)acrylate and a copolymer of p-hydroxystyrene and p-t-butoxystyrene, (b) a photoacid generator, and (c) a quaternary ammonium salt compound represented by tetramethylammonium adamantanecarboxylate, tetramethylammonium oxalate, tetraethylammonium pyruvate. The radiation-sensitive resin composition is capable of producing a rectangular resist pattern while preventing the top edge of the pattern from rounding, which is a big problem in microprocessing of design dimensions of about 0.20 mum with a thin film. The radiation-sensitive resin composition is highly sensitive to deep ultraviolet radiation, X-rays, and charged particle rays and exhibits excellent sensitivity, resolution, and the like.