INTERCONNECT STRUCTURE AND FORMING METHOD THEREOF

    公开(公告)号:US20220216165A1

    公开(公告)日:2022-07-07

    申请号:US17706039

    申请日:2022-03-28

    Abstract: An interconnect structure comprises a first dielectric layer, a first metal layer, a second dielectric layer, a metal via, and a second metal layer. The first dielectric layer is over a substrate. The first metal layer is over the first dielectric layer. The first metal layer comprises a first portion and a second portion spaced apart from the first portion. The second dielectric layer is over the first metal layer. The metal via has an upper portion in the second dielectric layer, a middle portion between the first and second portions of the first metal layer, and a lower portion in the first dielectric layer. The second metal layer is over the metal via. From a top view the second metal layer comprises a metal line having longitudinal sides respectively set back from opposite sides of the first portion of the first metal layer.

    Through-Circuit Vias In Interconnect Structures

    公开(公告)号:US20230386973A1

    公开(公告)日:2023-11-30

    申请号:US18232200

    申请日:2023-08-09

    Abstract: An integrated circuit (IC) with through-circuit vias (TCVs) and methods of forming the same are disclosed. The IC includes a semiconductor device, first and second interconnect structures disposed on first and second surfaces of the semiconductor device, respectively, first and second inter-layer dielectric (ILD) layers disposed on front and back surfaces of the substrate, respectively, and a TCV disposed within the first and second interconnect structures, the first and second ILD layers, and the substrate. The TCV is spaced apart from the semiconductor device by a portion of the substrate and portions of the first and second ILD layers. A first end of the TCV, disposed over the front surface of the substrate, is connected to a conductive line of the first interconnect structure and a second end of the TCV, disposed over the back surface of the substrate, is connected to a conductive line of the second interconnect structure.

    GRAPHENE-METAL HYBRID INTERCONNECT
    8.
    发明公开

    公开(公告)号:US20230402384A1

    公开(公告)日:2023-12-14

    申请号:US17835924

    申请日:2022-06-08

    Abstract: Material properties of graphene can be leveraged to improve performance of interconnects in an integrated circuit. One way to circumvent challenges involved in depositing graphene onto a copper surface is to incorporate graphene into the bulk metal layer to create a hybrid metal/graphene interconnect structure. Such a hybrid structure can be created instead of, or in addition to, forming a graphene film on the metal surface as a metal capping layer. A first method for embedding graphene into a copper damascene layer is to alternate the metal fill process with graphene deposition to create a composite graphene matrix. A second method is to implant carbon atoms into a surface layer of metal. A third method is to disperse graphene flakes in a damascene copper plating solution to create a distributed graphene matrix. Any combination of these methods can be used to enhance conductivity of the interconnect.

    ONE-TIME PROGRAMMABLE MEMORY DEVICE INCLUDING ANTI-FUSE ELEMENT

    公开(公告)号:US20230284442A1

    公开(公告)日:2023-09-07

    申请号:US18304834

    申请日:2023-04-21

    CPC classification number: H10B20/20 H01L23/481

    Abstract: A memory device includes a transistor, an anti-fuse element, a source/drain contact, a first gate via, and a second gate via. The transistor is over a substrate. The anti-fuse element is over the substrate and is connected to the transistor in series. The source/drain contact is connected to a source/drain region of the transistor. The first gate via is connected to a first gate structure of the transistor. The first gate structure of the transistor extends along a first direction in a top view. The second gate via is connected to a second gate structure of the anti-fuse element. The second gate via is between the first gate via and the source/drain contact along the first direction in the top view.

    Through-Circuit Vias in Interconnect Structures

    公开(公告)号:US20210375723A1

    公开(公告)日:2021-12-02

    申请号:US17162584

    申请日:2021-01-29

    Abstract: An integrated circuit (IC) with through-circuit vias (TCVs) and methods of forming the same are disclosed. The IC includes a semiconductor device, first and second interconnect structures disposed on first and second surfaces of the semiconductor device, respectively, first and second inter-layer dielectric (ILD) layers disposed on front and back surfaces of the substrate, respectively, and a TCV disposed within the first and second interconnect structures, the first and second ILD layers, and the substrate. The TCV is spaced apart from the semiconductor device by a portion of the substrate and portions of the first and second ILD layers. A first end of the TCV, disposed over the front surface of the substrate, is connected to a conductive line of the first interconnect structure and a second end of the TCV, disposed over the back surface of the substrate, is connected to a conductive line of the second interconnect structure.

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