Non-resolving mask tiling method for flare reduction
    2.
    发明授权
    Non-resolving mask tiling method for flare reduction 失效
    不分解掩模平铺方法

    公开(公告)号:US06989229B2

    公开(公告)日:2006-01-24

    申请号:US10400347

    申请日:2003-03-27

    IPC分类号: G03F7/20

    摘要: Photoresist on a wafer is exposed using tiles on a mask that improve flare performance. Features that are not to be exposed on the photoresist correspond to features on the mask. The various features are surrounded by other features that vary and thus affect flare differently. Selected features have tiles added nearby but also far enough away to improve uniformity in the effects of flare on the various features that are intended to be present in the photoresist. The tiles are made either very small in width or partially absorbing so that the tiles are not resolved in the photoresist. Thus the tiles reduce flare but do not alter the desired pattern in the photoresist.

    摘要翻译: 晶片上的光致抗蚀剂使用掩模上的瓷砖进行曝光,从而改善光斑性能。 在光刻胶上不暴露的特征对应于掩模上的特征。 各种特征被不同的其他特征所包围,从而不同地影响耀斑。 选定的特征具有附近附近的瓷砖,但也足够远,以改善光斑对预期存在于光致抗蚀剂中的各种特征的影响的均匀性。 瓷砖制成的宽度非常小或部分吸收,使得瓷砖未在光致抗蚀剂中分辨。 因此,瓷砖减少了光斑,但不改变光刻胶中所需的图案。

    Cr-capped chromeless phase lithography
    3.
    发明授权
    Cr-capped chromeless phase lithography 有权
    Cr覆盖的无铬相光刻

    公开(公告)号:US07732102B2

    公开(公告)日:2010-06-08

    申请号:US11181169

    申请日:2005-07-14

    IPC分类号: G03F1/00

    CPC分类号: G03F1/34

    摘要: A photolithographic mask is adapted for use in imparting a pattern to a substrate. The pattern comprises a plurality of features. At least one of the plurality of features (201) is implemented in the mask as a phase shifting structure (205) with a unitary layer of opaque material (207) disposed thereon. The mask is utilized to impart the pattern to a layer over a semiconductor substrate.

    摘要翻译: 光刻掩模适用于将图案赋予基板。 该图案包括多个特征。 多个特征(201)中的至少一个在掩模中实施为具有设置在其上的不透明材料(207)的整体层的相移结构(205)。 该掩模用于将图案赋予半导体衬底上的层。