RESIST COMPOSITION AND RESIST PATTERN FORMING METHOD

To provide a resist composition having good sensitivity and fine resolution, and a resist pattern forming method.SOLUTION: The resist composition contains: a base component (A) whose solubility in a developer changes by the action of an acid; and a compound (D0) represented by general formula (d0)....

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Main Authors GOHARA MASARU, ONISHI KOSHI, MICHIBAYASHI NOBUHIRO, IKEDA TAKUYA, SHIOSAKI MASAHIRO
Format Patent
LanguageEnglish
Japanese
Published 15.07.2021
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Summary:To provide a resist composition having good sensitivity and fine resolution, and a resist pattern forming method.SOLUTION: The resist composition contains: a base component (A) whose solubility in a developer changes by the action of an acid; and a compound (D0) represented by general formula (d0). In the formula, Rd1 is an aryl group having an electron-withdrawing group; Rd2 and Rd3 each independently represent an aryl group, an alkyl group or an alkenyl group which may have a substituent; Rd2 and Rd3 may be bonded to each other to form a ring together with a sulfur atom in the formula (excluding a ring structure formed via -C(=O)-); Rd0 is a monovalent organic group; Xd0 is -O-, -C(=O)-, -O-C(=O)-, -C(=O)-O-, -S- or -SO2-; and Yd0 is an optionally substituted divalent hydrocarbon group or a single bond.SELECTED DRAWING: None 【課題】感度及び微細解像性が良好なレジスト組成物及びレジストパターン形成方法の提供。【解決手段】酸の作用により現像液に対する溶解性が変化する基材成分(A)と、一般式(d0)で表される化合物(D0)と、を含有するレジスト組成物。式中、Rd1は、電子求引性基を有するアリール基である。Rd2及びRd3は、それぞれ独立に置換基を有してもよいアリール基、アルキル基またはアルケニル基を表す。Rd2及びRd3は、相互に結合して式中のイオウ原子と共に環を形成してもよい(但し、−C(=O)−を介して形成する環構造は除く)。Rd0は、1価の有機基である。Xd0は、−O−、−C(=O)−、−O−C(=O)−、−C(=O)−O−、−S−、又は−SO2−である。Yd0は、置換基を有してもよい2価の炭化水素基又は単結合である。[化1]【選択図】なし
Bibliography:Application Number: JP20190234510