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    • 25. 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。
    • 29. 发明授权
    • Positive photoresist compositions and multilayer resist materials using
the same
    • 正型光致抗蚀剂组合物和使用其的多层抗蚀剂材料
    • US5728504A
    • 1998-03-17
    • US652389
    • 1996-05-23
    • Hiroshi HosodaSatoshi NiikuraAtsushi SawanoTatsuya HashiguchiKazuyuki NittaHidekatsu KoharaToshimasa Nakayama
    • Hiroshi HosodaSatoshi NiikuraAtsushi SawanoTatsuya HashiguchiKazuyuki NittaHidekatsu KoharaToshimasa Nakayama
    • G03F7/11G03F7/022G03F7/26H01L21/027G03F7/023
    • G03F7/022
    • A positive photoresist composition comprising (A) an alkali-soluble resin and (B) a light-sensitive component comprising at least one compound represented by the following general formula (I): ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each independently a hydrogen atom, an alkyl group having 1-3 carbon atoms or an alkoxy group having 1-3 carbon atoms; R.sup.4 is a hydrogen atom or an alkyl group having 1-3 carbon atoms; a, b and c are an integer of 1-3; l, m and n are an integer of 1-3, in which at least part of the hydroxyl groups present are esterified with a quinonediazidosulfonic acid and a sulfonic acid which has a group represented by the following formula (II): --SO.sub.2 --R.sup.5 (II) where R.sup.5 is a substituted or unsubstituted alkyl group, an alkenyl group or a substituted or unsubstituted aryl group, thereby forming a mixed ester, and a multilayer resist material in which a positive photoresist layer formed of said positive photoresist composition is provided on an anti-reflective coating over a substrate are capable of forming high-resolution resist patterns with good cross-sectional profiles and permit a wider margin of exposure and better depth-of-focus characteristics.
    • 一种正性光致抗蚀剂组合物,其包含(A)碱溶性树脂和(B)包含至少一种由以下通式(I)表示的化合物的光敏性组分:其中R 1,R 2和R 3是 各自独立地为氢原子,具有1-3个碳原子的烷基或具有1-3个碳原子的烷氧基; R4是氢原子或具有1-3个碳原子的烷基; a,b和c为1-3的整数; l,m和n是1-3的整数,其中存在的羟基的至少一部分与醌二叠氮磺酸和具有下式(II)表示的基团的磺酸酯化:-SO 2 -R 5 (II)其中R5是取代或未取代的烷基,烯基或取代或未取代的芳基,从而形成混合酯,以及多层抗蚀剂材料,其中由所述正性光致抗蚀剂组合物形成的正性光致抗蚀剂层设置在 衬底上的抗反射涂层能够形成具有良好横截面轮廓的高分辨率抗蚀剂图案,并允许更宽的曝光余量和更好的聚焦深度特性。