Copolymers prepared by radical polymerization of a fluorine-containing aromatic monomer and an acrylate-based comonomer that may or may not be fluorinated. The polymers are useful in lithographic photoresist compositions, particularly chemical amplification resists. In a preferred embodiment, the polymers are substantially transparent to deep ultraviolet (DUV) radiation, i.e., radiation of a wavelength less than 250 nm, including 157 nm and 248 nm radiation, and are thus useful in DUV lithographic photoresist compositions. A method for using the composition to generate resist images on a substrate is also provided, i.e., in the manufacture of integrated circuits or the like.
该文描述了通过自由基聚合制备含
氟芳香单体和
丙烯酸酯基共聚单体(可以是
氟化的或非
氟化的)的共聚物。这些聚合物在光刻胶组成中非常有用,特别是在
化学放大光刻胶中。在首选实施例中,这些聚合物对深紫外(DUV)辐射(即波长小于250 nm的辐射,包括157 nm和248 nm辐射)具有相当的透明度,因此在DUV光刻胶组成中非常有用。还提供了一种使用该组成物在基板上生成抗蚀图像的方法,即在集成电路或类似物的制造中。