RADIATION-SENSITIVE RESIN COMPOSITION AND METHOD FOR FORMING PATTERN

    公开(公告)号:US20250085629A1

    公开(公告)日:2025-03-13

    申请号:US18953228

    申请日:2024-11-20

    Abstract: A radiation-sensitive resin composition includes: an onium salt compound represented by formula (1), a resin including a structural unit having an acid-dissociable group, and an alcohol-based solvent having a boiling point of 90° C. or higher. R1 is a substituted or unsubstituted monovalent hydrocarbon group or a group including a divalent hetero atom-containing group between two adjacent carbon atoms of the hydrocarbon group; R2 and R3 are each independently a hydrogen atom or a monovalent hydrocarbon group, one of Rf11 and Rf12 is a fluorine atom, and the other is a fluorine atom or a monovalent fluorinated hydrocarbon group, m1 is an integer of 1 to 3; m2 is an integer of 0 to 8; and Z1+ represents a monovalent radiation-sensitive onium cation.

    RADIATION-SENSITIVE RESIN COMPOSITION AND METHOD FOR FORMING PATTERN

    公开(公告)号:US20220334479A1

    公开(公告)日:2022-10-20

    申请号:US17847253

    申请日:2022-06-23

    Inventor: Ryuichi NEMOTO

    Abstract: A radiation-sensitive resin composition includes: an onium salt compound represented by formula (1′); a resin including a structural unit having an acid-dissociable group; and a solvent. EA is a substituted or unsubstituted (α+β)-valent organic group having 1 to 40 carbon atoms; Z+ is a monovalent radiation-sensitive onium cation; and α and β are each independently 1 or 2.

    RADIATION-SENSITIVE RESIN COMPOSITION AND PATTERN FORMATION METHOD

    公开(公告)号:US20240393688A1

    公开(公告)日:2024-11-28

    申请号:US18796665

    申请日:2024-08-07

    Abstract: A radiation-sensitive resin composition includes: a polymer comprising a structural unit (I) represented by formula (1) and a structural unit different from the structural unit (I); an onium salt represented by formula (i); and a solvent. In formula (1), RK1 is a hydrogen atom, a fluorine atom, a methyl group, or a trifluoromethyl group, L1 is an alkanediyl group having 1 to 5 carbon atoms, and Rf1 is a fluorinated hydrocarbon group having 2 to 10 carbon atoms and 5 to 7 fluorine atoms. In formula (i), Ra1 is a substituted or unsubstituted monovalent organic group having 1 to 40 carbon atoms with no fluorine atom or fluorinated hydrocarbon group attached to an atom adjacent to the sulfur atom, and X+ is a monovalent onium cation.

    RADIATION-SENSITIVE RESIN COMPOSITION AND PATTERN FORMATION METHOD

    公开(公告)号:US20240393687A1

    公开(公告)日:2024-11-28

    申请号:US18795534

    申请日:2024-08-06

    Abstract: A radiation-sensitive resin composition includes: a polymer comprising a structural unit (I) represented by a formula (1) and a structural unit different from the structural unit (I); a radiation-sensitive acid generator represented by a formula (α); and a solvent. RK1 is a hydrogen atom, a fluorine atom, or the like, L1 is an alkanediyl group, and Rf1 is a fluorinated hydrocarbon group. RW is a monovalent organic group having 3 to 40 carbon atoms that contains a cyclic structure, Rfa and Rfb are each independently a fluorine atom or the like, R11 and R12 are each independently a hydrogen atom, a fluorine atom, or the like, n1 is an integer of 1 to 4, n2 is an integer of 0 to 4, no carbonyl group is present between a sulfur atom of the sulfonic acid ion and the cyclic structure of RW, and Z+ is a monovalent onium cation.

    RADIATION-SENSITIVE RESIN COMPOSITION AND METHOD FOR FORMING PATTERN

    公开(公告)号:US20250076761A1

    公开(公告)日:2025-03-06

    申请号:US18951794

    申请日:2024-11-19

    Abstract: A radiation-sensitive resin composition includes: a first onium salt compound represented by formula (1); a second onium salt compound represented by formula (2); a resin including a structural unit having an acid-dissociable group; and a solvent. R1 is a substituted or unsubstituted monovalent hydrocarbon group or the like; R2 and R3 are each independently a hydrogen atom or a monovalent hydrocarbon group; one of Rf11 and Rf12 is a fluorine atom, and the other is a fluorine atom or a monovalent fluorinated hydrocarbon group; and Z1+ represents a monovalent radiation-sensitive onium cation. R4 is a monovalent organic group including a cyclic structure; Rf21 and Rf22 each independently represent a fluorine atom or a monovalent fluorinated hydrocarbon group; and Z2+ represents a monovalent radiation-sensitive onium cation.

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