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    • 83. 发明授权
    • High-sensitivity positive-working photoresist composition
    • 高灵敏度正性光刻胶组合物
    • US5601961A
    • 1997-02-11
    • US412889
    • 1995-03-29
    • Kazuhiko NakayamaTaku NakaoKousuke DoiNobuo TokutakeHidekatsu KoharaToshimasa Nakayama
    • Kazuhiko NakayamaTaku NakaoKousuke DoiNobuo TokutakeHidekatsu KoharaToshimasa Nakayama
    • G03F7/022C08G8/08G03F7/023H01L21/027
    • C08G8/08G03F7/0236
    • Disclosed is an improved positive-working photoresist composition comprising an alkali-soluble resin as a film-forming agent and a quinone diazide group-containing compound as a photosensitive agent. The most characteristic feature of the inventive composition consists in the unique formulation of the alkali-soluble resin which is a combination of two or three kinds of novolac resins selected from novolac resins (a), (b1) or (b2) and (c1) or (c2), each of which is characterized by the unique formulation of the phenolic compounds as a mixture to be subjected to a condensation reaction with an aldehyde compound to form the novolac resin. Namely, the phenolic mixture for the novolac (a) consists of m- and p-cresols, the phenolic mixture for the novolac (b1) consists of m-cresol and a xylenol, the phenolic mixture for the novolac (b2) consists of m- and p-cresols and a xylenol, the phenolic mixture for the novolac (c1) consists of m-cresol and a trimethyl phenol and the phenolic mixture for the novolac (c2) consists of m- and p-cresols and a trimethyl phenol each in a specified molar proportion of the constituent phenolic compounds.
    • 公开了一种改进的正性光致抗蚀剂组合物,其包含作为成膜剂的碱溶性树脂和含醌二叠氮基的化合物作为感光剂。 本发明组合物最具特色的特征在于碱溶性树脂的独特配方,其是选自酚醛清漆树脂(a),(b1)或(b2)和(c1)中的两种或三种酚醛清漆树脂的组合, 或(c2),其各自的特征在于酚类化合物作为与醛化合物进行缩合反应以形成酚醛清漆树脂的混合物的独特配方。 即,酚醛清漆(a)的酚类混合物由间甲酚和对甲酚组成,酚醛清漆(b1)的酚类混合物由间甲酚和二甲苯酚组成,酚醛清漆(b2)的酚类混合物由 - 酚甲酚和二甲苯酚,酚醛清漆(c1)的酚类混合物由间甲酚和三甲酚组成,酚醛清漆(c2)的酚类混合物由间甲苯酚和对甲酚和三甲酚组成 以规定摩尔比例的组成酚类化合物。