Test reticle for proximity characterizing of scanner lenses in lithography technology

    公开(公告)号:DE10124736A1

    公开(公告)日:2002-12-05

    申请号:DE10124736

    申请日:2001-05-21

    Abstract: On the test reticle are located modules (1), contg. cells (3) in which are fitted lines of given width and spacing in different orientation. Preferably on both sides of mask middle line (M) of reticle are arranged middle line modules alternating in Z and Y direction. In the region of mask middle line the middle line modules extend in Y-direction over the entire width (5) of the scanner slit. The middle line modules of different orientation are point-symmetrically arranged w.r.t. reticle Center point (Z). Independent claims are included for method of proximity characterizing of scanner lenses.

    4.
    发明专利
    未知

    公开(公告)号:DE10115281A1

    公开(公告)日:2002-10-24

    申请号:DE10115281

    申请日:2001-03-28

    Inventor: HASMANN JENS

    Abstract: The present invention provides a method for optimizing the overlay adjustment of two mask planes in a photolithographic process for the production of an integrated circuit having the following steps: provision of a substrate (S) with at least one first mask plane (ME), which has been patterned by exposure of a first mask using a first exposure device; orientation of a second mask (M), which is provided for the patterning of a second mask plane using a second exposure device, with respect to the first mask plane (ME); measurement of the overlay between the first mask plane (ME) and the second mask (M); analysis of the measured overlay taking account of error data (FAD, FXD, FBD, FYD) provided, in advance regarding errors (FA, FX, FB, FY) of the first and second masks and/or errors of the first and second exposure devices; carrying out of a correction of the orientation of the second mask (M) depending on the result of the analysis.

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