SELF-ASSEMBLED MATERIAL PATTERN TRANSFER CONTRAST ENHANCEMENT
    9.
    发明申请
    SELF-ASSEMBLED MATERIAL PATTERN TRANSFER CONTRAST ENHANCEMENT 审中-公开
    自组装材料模式转移对比增强

    公开(公告)号:US20090117360A1

    公开(公告)日:2009-05-07

    申请号:US11933760

    申请日:2007-11-01

    IPC分类号: G03C1/73 B05D3/00 B32B27/06

    摘要: A non-photosensitive polymeric resist containing at least two immiscible polymeric block components is deposited on the planar surface. The non-photosensitive polymeric resist is annealed to allow phase separation of immiscible components and developed to remove at least one of the at least two polymeric block components. Nanoscale features, i.e., features of nanometer scale, including at least one recessed region having a nanoscale dimension is formed in the polymeric resist. The top surface of the polymeric resist is modified for enhanced etch resistance by an exposure to an energetic beam, which allows the top surface of the patterned polymeric resist to become more resistant to etching processes and chemistries. The enhanced ratio of etch resistance between the two types of surfaces provides improved image contrast and fidelity between areas having the top surface and the at least one recessed region.

    摘要翻译: 含有至少两个不混溶的聚合物嵌段组分的非光敏聚合物抗蚀剂沉积在平面上。 将非光敏聚合物抗蚀剂退火以允许不相容组分的相分离并显影以除去至少两种聚合物嵌段组分中的至少一种。 在聚合物抗蚀剂中形成纳米尺度特征,即纳米尺度的特征,包括具有纳米级尺寸的至少一个凹陷区域。 聚合物抗蚀剂的顶表面通过暴露于能量束而被改进以提高耐蚀刻性,这允许图案化聚合物抗蚀剂的顶表面变得更耐蚀刻工艺和化学物质。 两种类型表面之间的增强的耐蚀刻比提供了改善的图像对比度和具有顶表面和至少一个凹陷区域的区域之间的保真度。