Line edge roughness reduction
    41.
    发明授权
    Line edge roughness reduction 失效
    线边粗糙度降低

    公开(公告)号:US07135419B2

    公开(公告)日:2006-11-14

    申请号:US10245760

    申请日:2002-09-16

    IPC分类号: H01L21/31 H01L21/469

    CPC分类号: G03F7/40 H01L21/0273

    摘要: A base-loaded polymer is applied to a semiconductor feature formed after exposing and developing a photoresist layer in order to reduce line edge roughness caused by a residual acid collecting on the edges of the feature during the post-exposure bake of the photoresist. Alternatively, a polymer is applied containing grains that are of suitable for smoothing the line edge roughness.

    摘要翻译: 将基底负载的聚合物施加到在曝光和显影光致抗蚀剂层之后形成的半导体特征,以便在光致抗蚀剂的后曝光烘烤期间减少由在特征的边缘上收集的残留酸引起的线边缘粗糙度。 或者,施加包含适于平滑线边缘粗糙度的颗粒的聚合物。