Seal ring structures and methods of forming same

    公开(公告)号:US10453832B2

    公开(公告)日:2019-10-22

    申请号:US15665495

    申请日:2017-08-01

    Abstract: A three-dimensional (3D) integrated circuit (IC) includes a first IC die and a second IC die. The first IC die includes a first semiconductor substrate, and a first interconnect structure over the first semiconductor substrate. The second IC die includes a second semiconductor substrate, and a second interconnect structure that separates the second semiconductor substrate from the first interconnect structure. A seal ring structure separates the first interconnect structure from the second interconnect structure and perimetrically surrounds a gas reservoir between the first IC die and second IC die. The seal ring structure includes a sidewall gas-vent opening structure configured to allow gas to pass between the gas reservoir and an ambient environment surrounding the 3D IC.

    APPARATUS FOR BOND WAVE PROPAGATION CONTROL
    12.
    发明申请

    公开(公告)号:US20190096848A1

    公开(公告)日:2019-03-28

    申请号:US15935309

    申请日:2018-03-26

    Abstract: An apparatus and method is provided for controlling a propagation of a bond wave during semiconductor processing. The apparatus has a first chuck to selectively retain a first workpiece. A second chuck selectively retains a second workpiece. The first and second chucks selectively secure at least a periphery of the respective first workpiece and second workpiece. An air vacuum is circumferentially located in a region between the first chuck and second chuck. The air vacuum is configured to induce a vacuum between the first workpiece and second workpiece to selectively bring the first workpiece and second workpiece together from a propagation point. The air vacuum can be localized air vacuum guns, a vacuum disk, or an air curtain positioned about the periphery of the region between the first chuck and second chuck. The air curtain induces a lower pressure within the region between the first and second chucks.

    Method of forming semiconductor-on-insulator (SOI) substrate

    公开(公告)号:US11710656B2

    公开(公告)日:2023-07-25

    申请号:US16812533

    申请日:2020-03-09

    CPC classification number: H01L21/76245 H01L21/84 H01L27/1203

    Abstract: The present disclosure, in some embodiments, relates to a method of forming a semiconductor structure. The method includes forming a plurality of bulk micro defects within a handle substrate. Sizes of the plurality of bulk micro defects are increased to form a plurality of bulk macro defects (BMDs) within the handle substrate. Some of the plurality of BMDs are removed from within a first denuded region and a second denuded region arranged along opposing surfaces of the handle substrate. An insulating layer is formed onto the handle substrate. A device layer comprising a semiconductor material is formed onto the insulating layer. The first denuded region and the second denuded region vertically surround a central region of the handle substrate that has a higher concentration of the plurality of BMDs than both the first denuded region and the second denuded region.

    Seal ring structures and methods of forming same

    公开(公告)号:US11342322B2

    公开(公告)日:2022-05-24

    申请号:US16933082

    申请日:2020-07-20

    Abstract: Some embodiments relate to a three-dimensional (3D) integrated circuit (IC). The 3D IC includes a first IC die comprising a first semiconductor substrate, and a first interconnect structure over the first semiconductor substrate. The 3D IC also includes a second IC die comprising a second semiconductor substrate, and a second interconnect structure that separates the second semiconductor substrate from the first interconnect structure. A seal ring structure separates the first interconnect structure from the second interconnect structure and perimetrically surrounds a gas reservoir between the first IC die and second IC die. The seal ring structure includes a sidewall gas-vent opening structure configured to allow gas to pass between the gas reservoir and an ambient environment surrounding the 3D IC.

    Seal ring structures and methods of forming same

    公开(公告)号:US10727218B2

    公开(公告)日:2020-07-28

    申请号:US16201113

    申请日:2018-11-27

    Abstract: Some embodiments relate to a three-dimensional (3D) integrated circuit (IC). The 3D IC includes a first IC die comprising a first semiconductor substrate, and a first interconnect structure over the first semiconductor substrate. The 3D IC also includes a second IC die comprising a second semiconductor substrate, and a second interconnect structure that separates the second semiconductor substrate from the first interconnect structure. A seal ring structure separates the first interconnect structure from the second interconnect structure and perimetrically surrounds a gas reservoir between the first IC die and second IC die. The seal ring structure includes a sidewall gas-vent opening structure configured to allow gas to pass between the gas reservoir and an ambient environment surrounding the 3D IC.

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