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    • 16. 发明授权
    • Ether monomers and polymers having multi-ring structures, and photosensitive polymers and resist compositions obtained from the same
    • 具有多环结构的醚单体和聚合物,以及由其获得的光敏聚合物和抗蚀剂组合物
    • US06962768B2
    • 2005-11-08
    • US10799025
    • 2004-03-12
    • Hyun-Woo KimSang-Gyun Woo
    • Hyun-Woo KimSang-Gyun Woo
    • G03F7/039C08F16/18C08F20/22C08F220/22C08F234/02G03F7/004G03F7/027C07D311/78C08F34/02
    • G03F7/0046C07D311/78C08F34/02G03F7/0395Y10S430/106Y10S430/108Y10S430/115
    • Provided are a variety of monomers suitable of producing photosensitive polymers, that are in turn, useful in photoresist compositions, through radical (cationic) polymerization including at least one multi-ring alkenyl ethers and one α-fluorinated acrylate. The resulting photoresist compositions exhibit both acceptable resistance to dry etching processing and light transmittance suitable for use with various light sources such as KrF excimer lasers, ArF excimer lasers or F2 excimer lasers, in a photolithography process to produce fine photoresist patterns. In addition to the multi-ring alkenyl ethers and α-fluorinated acrylates, additional monomers comprising one or more cyclic aliphatic and heterocyclic compounds, both unsubstituted and substituted, in particular dihydropyrans, may be incorporated into the photosensitive polymers. Photosensitive polymers can then be produced by combining these various monomer units to form copolymers, terpolymers and higher order polymers, an exemplary embodiment of which may be generally represented by the formula V:
    • 提供适合于通过包括至少一个多环烯基醚和一个α-氟化丙烯酸酯的自由基(阳离子)聚合生产光敏聚合物的各种单体,其又可用于光致抗蚀剂组合物。 所得光致抗蚀剂组合物在光刻工艺中表现出可接受的干蚀刻处理耐受性和适用于各种光源(例如KrF准分子激光器,ArF准分子激光器或F 2/2准分子激光器)的光透射率,以产生 精细的光刻胶图案。 除了多环烯基醚和α-氟化丙烯酸酯之外,还可以将包含一种或多种环状脂族和杂环化合物,未取代的和取代的,特别是二氢吡喃的附加单体引入光敏聚合物中。 然后可以通过组合这些各种单体单元以形成共聚物,三元共聚物和更高级的聚合物来生产光敏聚合物,其典型的实施方案通常可以由式V表示: