Polymerizable compound, polymer, positive resist composition, and patterning process using the same
    58.
    发明申请
    Polymerizable compound, polymer, positive resist composition, and patterning process using the same 有权
    可聚合化合物,聚合物,正性抗蚀剂组合物和使用其的图案化工艺

    公开(公告)号:US20090297979A1

    公开(公告)日:2009-12-03

    申请号:US12453665

    申请日:2009-05-18

    摘要: The present invention provides; a polymer suitable as a base resin for a positive resist composition, in particular a chemically amplified positive resist composition, having a higher resolution, a larger exposure allowance, a smaller sparse-dense size difference, a better process applicability, a better pattern configuration after exposure, and in addition, a further excellent etching resistance, than a conventional positive resist; a positive resist composition using the same; a patterning process; and a novel polymerizable compound to obtain a polymer like this.The present invention was accomplished by a polymer whose hydrogen atom of at least a carboxyl group is substituted by an acid labile group represented by the following general formula (2), a positive resist composition using the same, a patterning process, and a novel polymerizable compound to obtain a polymer like this.

    摘要翻译: 本发明提供: 适合作为正性抗蚀剂组合物的基础树脂的聚合物,特别是化学放大正性抗蚀剂组合物,具有更高的分辨率,更大的曝光容限,更小的稀疏密度尺寸差异,更好的工艺适用性,更好的图案配置 曝光,此外,比传统的正性抗蚀剂具有更好的耐蚀刻性; 使用其的正性抗蚀剂组合物; 图案化过程; 和新型聚合性化合物,得到这样的聚合物。 本发明是由至少具有羧基的氢原子被下述通式(2)表示的酸不稳定基团取代的聚合物,使用其的正性抗蚀剂组合物,图案化工艺和新型可聚合的 化合物以获得这样的聚合物。