METHODS OF PATTERNING BLOCK COPOLYMER LAYERS
    2.
    发明申请
    METHODS OF PATTERNING BLOCK COPOLYMER LAYERS 有权
    块状共聚物层的方法

    公开(公告)号:US20140187054A1

    公开(公告)日:2014-07-03

    申请号:US14139986

    申请日:2013-12-24

    IPC分类号: H01L21/02

    摘要: A method of patterning a block copolymer layer includes: providing a guide pattern on a surface of a substrate, the guide pattern including sidewalls each elongated in a longitudinal direction and spaced apart from each other, a trench defined by a bottom surface and facing surfaces of the sidewalls, and having a uniform width over an entire length thereof in the longitudinal direction, and a latitudinal wall perpendicular to the longitudinal direction of the trench; providing a block copolymer layer on the surface of the substrate; and annealing the block copolymer to cause self-assembly of the block copolymer and to direct the same in the trench. The block copolymer has a microphase-separation into anisotropic discrete domains aligned with a period λo in the trench by the annealing.

    摘要翻译: 图案化嵌段共聚物层的方法包括:在基材的表面上提供引导图案,所述引导图案包括各自在纵向方向上延伸并且彼此间隔开的侧壁,所述沟槽由底表面限定并且面向 侧壁,并且在其纵向方向上在其整个长度上具有均匀的宽度,以及垂直于沟槽的纵向方向的纬向壁; 在基材的表面上提供嵌段共聚物层; 并且使嵌段共聚物退火以使嵌段共聚物自组装并将其引导到沟槽中。 嵌段共聚物通过退火将微相分离成与沟槽中的周期λo对准的各向异性离散畴。