Positive resist composition and patterning process
    1.
    发明授权
    Positive resist composition and patterning process 有权
    正抗蚀剂组成和图案化工艺

    公开(公告)号:US08795942B2

    公开(公告)日:2014-08-05

    申请号:US12000284

    申请日:2007-12-11

    CPC分类号: G03F7/0397 G03F7/0045

    摘要: There is disclosed a resist composition that remarkably improves the resolution of photolithography using a high energy beam such as ArF excimer laser light as a light source, and exhibits excellent resistance to surface roughness and side lobe under use of a halftone phase shift mask; and a patterning process using the resist composition. The positive resist composition at least comprises (A) a resin component comprising a repeating unit represented by the following general formula (1); (B) a photoacid generator generating sulfonic acid represented by the following general formula (2) upon exposure to a high energy beam; and (C) an onium salt where a cation is sulfonium represented by the following general formula (3), or ammonium represented by the following general formula (4); and an anion is represented by any one of the following general formulae (5) to (7).

    摘要翻译: 公开了一种抗蚀剂组合物,其使用诸如ArF准分子激光器的高能束作为光源显着地提高了光刻的分辨率,并且在使用半色调相移掩模的情况下表现出优异的抗表面粗糙度和侧凸的性能; 以及使用抗蚀剂组合物的图案化工艺。 正型抗蚀剂组合物至少包含(A)包含由以下通式(1)表示的重复单元的树脂组分; (B)在暴露于高能量束时产生由以下通式(2)表示的磺酸的光酸产生剂; 和(C)鎓盐,其中阳离子是由以下通式(3)表示的锍或由以下通式(4)表示的铵; 并且阴离子由以下通式(5)至(7)中的任一个表示。

    Patterning process and resist composition
    2.
    发明授权
    Patterning process and resist composition 有权
    图案化过程和抗蚀剂组成

    公开(公告)号:US08741554B2

    公开(公告)日:2014-06-03

    申请号:US12787823

    申请日:2010-05-26

    IPC分类号: G03F7/38 G03F7/40 G03F7/20

    摘要: A pattern is formed by coating a first positive resist composition comprising a base resin, a photoacid generator, and a base generator onto a substrate to form a first resist film, patternwise exposure, PEB, and development to form a first resist pattern, heating the first resist pattern for causing the base generator to generate a base for inactivating the pattern to acid, coating a second positive resist composition comprising a C3-C8 alcohol and an optional C6-C12 ether onto the first resist pattern-bearing substrate to form a second resist film, patternwise exposure, PEB, and development to form a second resist pattern.

    摘要翻译: 通过将包含基础树脂,光致酸发生剂和基底发生器的第一正型抗蚀剂组合物涂覆在基材上以形成第一抗蚀剂膜,图案曝光,PEB和显影以形成第一抗蚀剂图案,形成图案,加热 第一抗蚀剂图案,用于使基底发生器产生用于使图案失去酸的碱,将包含C 3 -C 8醇和任选的C 6 -C 12醚的第二正性抗蚀剂组合物涂覆到第一抗蚀剂图案衬底上以形成第二抗蚀剂图案 抗蚀剂膜,图案曝光,PEB和显影以形成第二抗蚀剂图案。

    Sulfonium salt-containing polymer, resist composition, and patterning process
    7.
    发明授权
    Sulfonium salt-containing polymer, resist composition, and patterning process 有权
    含锍盐的聚合物,抗蚀剂组合物和图案化工艺

    公开(公告)号:US08039198B2

    公开(公告)日:2011-10-18

    申请号:US12404245

    申请日:2009-03-13

    IPC分类号: G03F7/004 G03F7/30

    摘要: A polymer comprising recurring units of a sulfonium salt represented by formula (1) is provided as well as a chemically amplified resist composition comprising the same. R1 is H, F, methyl or trifluoromethyl, R2 to R4 are C1-C10 alkyl or alkoxy, R5 is C1-C30 alkyl or C6-C14 aryl, k, m and n are 0 to 3. The recurring units generate a sulfonic acid upon exposure to high-energy radiation so as to facilitate effective scission of acid labile groups in the resist composition. The resist composition exhibits excellent resolution and a pattern finish with minimal LER.

    摘要翻译: 提供了包含由式(1)表示的锍盐的重复单元的聚合物以及包含该聚合物的化学放大抗蚀剂组合物。 R 1是H,F,甲基或三氟甲基,R 2至R 4是C 1 -C 10烷基或烷氧基,R 5是C 1 -C 30烷基或C 6 -C 14芳基,k,m和n是0至3.重复单元产生磺酸 暴露于高能量辐射下,以促进抗蚀剂组合物中酸不稳定基团的有效断裂。 抗蚀剂组合物以最小的LER显示出优异的分辨率和图案光洁度。

    NOVEL SULFONIUM SALT, POLYMER, METHOD FOR PRODUCING THE POLYMER, RESIST COMPOSITION AND PATTERNING PROCESS
    9.
    发明申请
    NOVEL SULFONIUM SALT, POLYMER, METHOD FOR PRODUCING THE POLYMER, RESIST COMPOSITION AND PATTERNING PROCESS 有权
    新型磺酸盐,聚合物,聚合物的生产方法,耐腐蚀组合物和方法

    公开(公告)号:US20110189607A1

    公开(公告)日:2011-08-04

    申请号:US13013506

    申请日:2011-01-25

    摘要: There is disclosed a sulfonium salt represented by the following general formula (1). In the formula, X and Y each represents a group having a polymerizable functional group; Z represents a divalent hydrocarbon group having 1 to 33 carbon atoms optionally containing a hetero atom; R1 represents a divalent hydrocarbon group having 1 to 36 carbon atoms optionally containing a hetero atom; and R2 and R3 each represents a monovalent hydrocarbon group having 1 to 30 carbon atoms optionally containing a hetero atom or R2 and R3 may be bonded with each other to form a ring together with a sulfur atom in the formula. There can be provided a sulfonium salt usable as a resist composition providing high resolution and excellent in LER in photolithography using a high energy beam such as an ArF excimer laser, an EUV light and an electron beam as a light source, a polymer obtained from the sulfonium salt, a resist composition containing the polymer and a patterning process using the resist composition.

    摘要翻译: 公开了由以下通式(1)表示的锍盐。 在该式中,X和Y各自表示具有聚合性官能团的基团, Z表示任选含有杂原子的碳原子数1〜33的二价烃基; R1表示任选含有杂原子的碳原子数1〜36的二价烃基; R 2和R 3各自表示可以含有杂原子的具有1〜30个碳原子的一价烃基,或者,R 2和R 3可以相互结合,与式中的硫原子一起形成环。 可以提供可用作抗蚀剂组合物的锍盐,其使用诸如ArF准分子激光器,EUV光和电子束作为光源的高能束在光刻中提供高分辨率和优异的LER,从 锍盐,含有聚合物的抗蚀剂组合物和使用该抗蚀剂组合物的图案化工艺。