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    • 3. 发明申请
    • Positive resist composition, resist laminates and process for forming resist patterns
    • 正抗蚀剂组合物,抗蚀剂层压体和形成抗蚀剂图案的方法
    • US20070009828A1
    • 2007-01-11
    • US10560126
    • 2004-06-11
    • Koki TamuraDaisuke KawanaTomotaka YamadaTakayuki HosonoTaku HirayamaKazufumi SatoHiroshi ShimboriTomoyuki Ando
    • Koki TamuraDaisuke KawanaTomotaka YamadaTakayuki HosonoTaku HirayamaKazufumi SatoHiroshi ShimboriTomoyuki Ando
    • G03C1/00
    • G03F7/0757G03F7/0045
    • A positive resist composition, comprising a resin component (A) that exhibits increased alkali solubility under the action of acid, and an acid generator component (B) that generates acid on exposure, wherein the component (A) includes either a silsesquioxane resin (A1) containing structural units (a1) represented by a general formula (I) shown below, structural units (a2) represented by a general formula (II) shown below, and structural units (a3) represented by a general formula (III) shown below, or a silsesquioxane resin (A2) containing structural units (al) represented by the general formula (I) shown below, and structural units (a2′) represented by a general formula (II′) shown below. In the general formulas below, R1 represents a straight-chain or branched alkylene group of 1 to 5 carbon atoms, R2 represents a straight-chain or branched alkylene group of 1 to 5 carbon atoms, R3 represents an acid dissociable, dissolution inhibiting group, R6 represents an alkyl group of 1 to 5 carbon atoms, R7 represents either an alkyl group of 1 to 5 carbon atoms or a hydrogen atom, and R8 represents an alicyclic hydrocarbon group of 5 to 15 carbon atoms.
    • 含有在酸作用下表现出增加的碱溶性的树脂组分(A)的阳性抗蚀剂组合物和暴露时产生酸的酸产生剂组分(B),其中组分(A)包括倍半硅氧烷树脂(A1) ),由下述通式(I)表示的结构单元(a1),由下述通式(II)表示的结构单元(a2)和由以下所示的通式(III)表示的结构单元(a3) ,或含有下述通式(I)表示的结构单元(a1)的倍半硅氧烷树脂(A2)和由下述通式(II')表示的结构单元(a2')。 在下列通式中,R 1表示1至5个碳原子的直链或支链亚烷基,R 2表示直链或支链的亚烷基, 1至5个碳原子,R 3表示酸解离的溶解抑制基团,R 6表示1至5个碳原子的烷基,R 7, / SUP>表示1〜5个碳原子的烷基或氢原子,R 8表示5〜15个碳原子的脂环族烃基。