Resist pattern-forming method

A resist pattern-forming method includes applying a resist underlayer film-forming composition to a substrate to form a resist underlayer film. The resist underlayer film-forming composition includes (A) a polysiloxane. A radiation-sensitive resin composition is applied to the resist underlayer film...

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Main Authors Tanaka, Hiromitsu, Sakakibara, Hirokazu, Furukawa, Taiichi, Takanashi, Kazunori, Minegishi, Shin-ya, Anno, Yusuke, Mori, Takashi
Format Patent
LanguageEnglish
Published 17.07.2018
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Summary:A resist pattern-forming method includes applying a resist underlayer film-forming composition to a substrate to form a resist underlayer film. The resist underlayer film-forming composition includes (A) a polysiloxane. A radiation-sensitive resin composition is applied to the resist underlayer film to form a resist film. The radiation-sensitive resin composition includes (a1) a polymer that changes in polarity and decreases in solubility in an organic solvent due to an acid. The resist film is exposed. The exposed resist film is developed using a developer that includes an organic solvent.
Bibliography:Application Number: US201715440299