Modification method of surface of base, composition, and polymer

    公开(公告)号:US11426761B2

    公开(公告)日:2022-08-30

    申请号:US17000727

    申请日:2020-08-24

    申请人: JSR CORPORATION

    摘要: A modification method of a surface of a base includes applying a composition on a surface layer of a base to form a coating film. The surface layer contains a metal atom. The coating is heated. The composition contains a polymer and a solvent. The polymer includes at an end of a main chain or at an end of a side chain thereof, a functional group that is at least one selected from: a group represented by the following formula (1); a group containing a carbon-carbon triple bond; and a group containing an aromatic hydroxy group. In the formula (1), R1 represents a hydrogen atom or a monovalent organic group having 1 to 20 carbon atoms; and n is an integer of 1 to 10, wherein in a case in which n is no less than 2, a plurality of R1s are identical or different.

    PATTERN-FORMING METHOD AND COMPOSITION
    2.
    发明申请

    公开(公告)号:US20190235386A1

    公开(公告)日:2019-08-01

    申请号:US16376385

    申请日:2019-04-05

    申请人: JSR Corporation

    摘要: A pattern-forming method includes forming a base pattern having recessed portions on a front face side of a substrate directly or via other layer. The recessed portions of the base pattern are filled with a first composition to form a filler layer. Phase separation of the filler layer is allowed to form a plurality of phases of the filler layer. A part of the plurality of phases of the filler layer is removed to form a miniaturized pattern. The forming of the base pattern includes: forming a resist pattern on the front face side of the substrate; forming a layer of a second polymer on lateral faces of the resist pattern; and forming a layer of a third polymer that differs from the second polymer on a surface of the substrate or on a surface of the other layer.

    Pattern-forming method
    6.
    发明授权

    公开(公告)号:US09847232B1

    公开(公告)日:2017-12-19

    申请号:US15468772

    申请日:2017-03-24

    摘要: A pattern-forming method includes forming a base pattern having recessed portions on a front face side of a substrate. A first composition is applied on lateral faces of the recessed portions of the base pattern, to form a coating. The first composition includes a first polymer which includes on at least one end of a main chain thereof a group capable of interacting with the base pattern. A surface of the coating is contacted with a highly polar solvent. The recessed portions are filled with a second composition. The second composition includes a second polymer which is capable of forming a phase separation structure through directed self-assembly. Phase separation is permitted in the second composition to form phases. A part of the phases is removed to form a miniaturized pattern. The substrate is etched directly or indirectly using the miniaturized pattern as a mask.

    Selective modification method of a base material surface

    公开(公告)号:US10923342B2

    公开(公告)日:2021-02-16

    申请号:US16550695

    申请日:2019-08-26

    申请人: JSR CORPORATION

    IPC分类号: H01L21/02

    摘要: A selective modification method of a base material surface includes subjecting at least a part of a surface of a base material to at least one surface treatment selected from the group consisting of an oxidization treatment and a hydrophilization treatment. The base material includes a surface layer and includes an oxide, a nitride or an oxynitride of silicon, or a combination thereof in a first region of the surface layer. A nonphotosensitive composition is applied directly or indirectly on the surface of the base material after the surface treatment. The nonphotosensitive composition includes: a first polymer containing a nitrogen atom; and a solvent. It is preferred that the base material contains a metal in a second region which is other than the first region of the surface layer. In the surface treatment step, an O2 plasma treatment is preferably conducted.