ELECTRICAL MASK VALIDATION
    6.
    发明申请

    公开(公告)号:US20190163857A1

    公开(公告)日:2019-05-30

    申请号:US15827618

    申请日:2017-11-30

    Abstract: An embodiment of the invention may include a method for ensuring semiconductor design integrity. The method may include analyzing a photomask design for a semiconductor circuit. The photomask may include a primary electrical design necessary for the operation of the semiconductor circuit, and white space, which has no primary electrical design. The method may include inserting a secondary electrical design into the white space of the photomask design for the semiconductor circuit. The secondary electrical design may have known electrical properties for validating the semiconductor circuit design.

    Lithographic dose characterization

    公开(公告)号:US10921716B1

    公开(公告)日:2021-02-16

    申请号:US16595862

    申请日:2019-10-08

    Abstract: Methods for determining unintentional exposure dose such as flare or out-of-band radiation of a lithography tool are provided. The methods generally include performing a series of open frame exposures with the lithography tool on a substrate having a photoresist therein to produce a primary array of controlled exposure dose blocks in the photoresist. Secondary exposure blocks are embedded within the primary array. The resultant open frame images are scanned with oblique light and the light scattered from the substrate surface captured. A haze map is created from a background signal of the captured scattered light data and converted to a graphical image file. Analyzing the graphical image file can be used to correlate any localized changes in the effective dose of the primary exposure array to the impact of secondary exposure blocks to characterize flare or out-of-band radiation associated with the exposure dose.

    Electrical mask validation
    8.
    发明授权

    公开(公告)号:US10650111B2

    公开(公告)日:2020-05-12

    申请号:US15827618

    申请日:2017-11-30

    Abstract: An embodiment of the invention may include a method for ensuring semiconductor design integrity. The method may include analyzing a photomask design for a semiconductor circuit. The photomask may include a primary electrical design necessary for the operation of the semiconductor circuit, and white space, which has no primary electrical design. The method may include inserting a secondary electrical design into the white space of the photomask design for the semiconductor circuit. The secondary electrical design may have known electrical properties for validating the semiconductor circuit design.

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