Method for patterning a mask layer and semiconductor product
    1.
    发明授权
    Method for patterning a mask layer and semiconductor product 失效
    图案化掩模层和半导体产品的方法

    公开(公告)号:US07078135B2

    公开(公告)日:2006-07-18

    申请号:US10653589

    申请日:2003-09-02

    IPC分类号: G01F9/00

    CPC分类号: G03F1/62 G03F1/64

    摘要: During the lithographic exposure of layers to be patterned on semiconductor products, use is made of masks whose mask pattern is imaged on a reduced scale, with the aid of an imaging optical arrangement, onto the layer to be patterned. After the patterning of the mask layer, a membrane is placed onto the mask with a membrane holder in order to keep dust or other contaminants in the air away from the plane of the mask layer during the exposure. When the mask and the membrane holder are mounted, manufacturing-dictated height deviations thereof lead to subsequent distortion of the mask structure of the mask layer, which is transferred to the semiconductor product by means of the lithography. Here, the height tolerances of the mask and of the membrane holder are measured and a corrected mask pattern is calculated, the mask structures of which are offset in the lateral direction such that the mask distortions resulting from the mounting of the membrane holder are compensated for. The deformations of the mask and of the membrane holder perpendicular to the mask plane are compensated for by lateral displacements of the mask structures of the corrected mask pattern.

    摘要翻译: 在要在半导体产品上图案化的层的光刻曝光期间,使用掩模,其掩模图案借助于成像光学布置以缩小的尺度成像到待图案化的层上。 在掩模层的图案化之后,用膜保持器将膜放置在掩模上,以便在曝光期间将灰尘或其它污染物保持在空气中远离掩模层的平面。 当安装掩模和膜保持器时,其制造规定的高度偏差导致掩模层的掩模结构的随后的变形,其通过光刻转印到半导体产品。 这里,测量掩模和膜保持器的高度公差,并且计算校正的掩模图案,其掩模结构在横向方向上偏移,使得由膜保持器的安装导致的掩模失真被补偿 。 垂直于掩模平面的掩模和膜保持器的变形由校正的掩模图案的掩模结构的横向移位来补偿。

    Method for producing phase shifter masks
    6.
    发明授权
    Method for producing phase shifter masks 有权
    用于制造移相器掩模的方法

    公开(公告)号:US07211355B2

    公开(公告)日:2007-05-01

    申请号:US11252476

    申请日:2005-10-18

    IPC分类号: G03F1/00 G03F7/16 G03F7/20

    摘要: The invention relates to a method for producing phase shifter masks for 157 nm lithography. A coating has an organic material and is at least partially configured on the phase shifter mask. This coating is processed with an electron beam. This allows efficient production of very small structures, even for 157 nm lithography.

    摘要翻译: 本发明涉及一种用于制造157nm光刻的移相器掩模的方法。 涂层具有有机材料并且至少部分地配置在移相器掩模上。 用电子束处理该涂层。 这允许非常小的结构的有效生产,甚至对于157nm光刻。