DETERMINATION OF DEFECTS AND/OR EDGE ROUGHNESS IN A SPECIMEN BASED ON A REFERENCE IMAGE

    公开(公告)号:US20220222797A1

    公开(公告)日:2022-07-14

    申请号:US17149614

    申请日:2021-01-14

    Abstract: There are provided systems and methods of obtaining a segmented image of a semiconductor specimen, the image comprising first structural elements, obtaining a reference image of the semiconductor specimen, the reference image being based on design data and comprising second structural elements, determining, for at least one pair of elements including a first structural element and a corresponding second structural element, data Dspat informative of a spatial transformation required in order to match the elements of the pair in accordance with a matching criterion, and determining at least one of data informative of a defect in the first structural element and data informative of edge roughness of the first structural element using at least Dspat.

    METHOD OF PERFORMING METROLOGY OPERATIONS AND SYSTEM THEREOF

    公开(公告)号:US20190121933A1

    公开(公告)日:2019-04-25

    申请号:US16179700

    申请日:2018-11-02

    Abstract: One or more metrology objects and one or more metrology operations may be identified. A design-based representation of a first metrology object of the one or more metrology objects may be received. Furthermore, an image-based representation of the first metrology object of the one or more metrology objects may be received where the one or more metrology operations include a first metrology operation associated with the first metrology object that is to be performed on the image-based representation of the first metrology object. The design-based representation of the first metrology object may be mapped with the image-based representation of the first metrology object. The first metrology operation may be performed based on the mapping.

    METHOD OF PERFORMING METROLOGY OPERATIONS AND SYSTEM THEREOF

    公开(公告)号:US20180268098A1

    公开(公告)日:2018-09-20

    申请号:US15460078

    申请日:2017-03-15

    CPC classification number: G06F17/5081 G06F2217/12

    Abstract: There are provided system and method of performing metrology operations related to a specimen. The method comprises: accommodating definitions of metrology objects and metrology operations, at least one of the group consisting of the metrology objects and the metrology operations being defined using design data; accommodating a design-based representation and an image-based representation of the specimen, the design-based representation of the specimen comprising design-based representation of at least first metrology object, the image-based representation of the specimen comprising image-based representation of the at least first metrology object, the metrology operations including at least first metrology operation defined as related to the at least first metrology object and performed on at least the image-based representation of the specimen; mapping between the design-based representation and the image-based representation of the at least first metrology object; and performing the at least first metrology operation according to definition thereof using the mapping.

Patent Agency Ranking