Semiconductor device and manufacturing method thereof

    公开(公告)号:US10157843B2

    公开(公告)日:2018-12-18

    申请号:US15816843

    申请日:2017-11-17

    Abstract: In a method for manufacturing a semiconductor device, a first dielectric layer is formed over a substrate, first recesses are formed in the first dielectric layer. Metal wirings extending is a first direction are formed in the first recesses. A mask layer is formed over the metal wirings and the first dielectric layer, which includes a first opening extending in the first direction and is located above a space between adjacent two metal wirings. A first groove corresponding to the first opening is formed between the adjacent two metal wirings by etching the first dielectric layer using the mask layer as an etching mask. A second dielectric layer is formed so that a first air gap is formed in the first groove. A width of the first opening in a perpendicular direction to the first direction is smaller than a space between the adjacent two metal wirings.

    SEMICONDUCTOR STRUCTURE WITH BONDING INTERFACE AND METHODS OF FORMING THE SAME

    公开(公告)号:US20250149482A1

    公开(公告)日:2025-05-08

    申请号:US18587104

    申请日:2024-02-26

    Abstract: In an embodiment, a method includes forming active devices over a semiconductor substrate; forming an interconnect structure over the semiconductor substrate, the interconnect structure comprising a contact pad embedded in a dielectric layer; forming a first passivation layer over the interconnect structure; forming a first opening through the first passivation layer to expose the contact pad; depositing a seed layer over the first passivation layer and in the first opening; forming a sacrificial material over the seed layer; patterning the sacrificial material to reform the first opening and to form a second opening; depositing conductive material to form a first redistribution line in the first opening and a second redistribution line in the second opening; removing the sacrificial material; and attaching an integrated circuit die to the first redistribution line and the second redistribution line.

    Semiconductor device and manufacturing method thereof

    公开(公告)号:US11355436B2

    公开(公告)日:2022-06-07

    申请号:US17135791

    申请日:2020-12-28

    Abstract: In a method for manufacturing a semiconductor device, a first dielectric layer is formed over a substrate, first recesses are formed in the first dielectric layer. Metal wirings extending is a first direction are formed in the first recesses. A mask layer is formed over the metal wirings and the first dielectric layer, which includes a first opening extending in the first direction and is located above a space between adjacent two metal wirings. A first groove corresponding to the first opening is formed between the adjacent two metal wirings by etching the first dielectric layer using the mask layer as an etching mask. A second dielectric layer is formed so that a first air gap is formed in the first groove. A width of the first opening in a perpendicular direction to the first direction is smaller than a space between the adjacent two metal wirings.

    Semiconductor Device and Method
    10.
    发明申请

    公开(公告)号:US20250070064A1

    公开(公告)日:2025-02-27

    申请号:US18403064

    申请日:2024-01-03

    Abstract: An embodiment is a device including a first die and a substrate including a first surface and a second surface opposite the first surface. The device also includes an active device on the first surface of the substrate. The device also includes a first interconnect structure on the first surface of the substrate. The device also includes a through substrate via extending through the first interconnect structure and the substrate to the second surface of the substrate, the through substrate via being electrically coupled to metallization patterns in the first interconnect structure. The device also includes one or more material-filled trench structures extending from the second surface of the substrate into the substrate, the one or more material-filled trench structures being electrically isolated from the through substrate via.

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