Bonding pad process with protective layer

    公开(公告)号:US10354965B2

    公开(公告)日:2019-07-16

    申请号:US15719370

    申请日:2017-09-28

    Abstract: The present disclosure describes an bonding pad formation method that incorporates an tantalum (Ta) conductive layer to block mobile ionic charges generated during the aluminum-copper (AlCu) metal fill deposition. For example, the method includes forming one or more interconnect layers over a substrate and forming a dielectric over a top interconnect layer of the one or more interconnect layers. A first recess is formed in the dielectric to expose a line or a via from the top interconnect layer. A conductive layer is formed in the first recess to form a second recess that is smaller than the first recess. A barrier metal layer is formed in the second recess to form a third recess that is smaller than the second recess. A metal is formed to fill the third recess.

    Metrology method in reticle transportation

    公开(公告)号:US10345716B2

    公开(公告)日:2019-07-09

    申请号:US15877646

    申请日:2018-01-23

    Abstract: A method for fault detection in a fabrication system is provided. The method includes transferring a reticle carrier containing a reticle from an original position to a destination position. The method further includes detecting environmental condition in the reticle carrier during the transfer of the reticle carrier using a metrology tool that is positioned at the reticle carrier. The method also includes issuing a warning when the detected environmental condition is outside a range of acceptable values.

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