Semiconductor device including an insulating material layer with concave-convex portions

    公开(公告)号:US11469180B2

    公开(公告)日:2022-10-11

    申请号:US16886444

    申请日:2020-05-28

    Abstract: A semiconductor device includes a semiconductor substrate having a first surface and a second surface opposing each other, and a side surface between the first and second surfaces, and including a device region on the first surface a wiring structure on the surface of the semiconductor substrate, and having a dielectric layer and a metal wiring in the dielectric layer and electrically connected to the device region, and an insulating material layer on a side surface of the wiring structure and having a side surface connected to the side surface of the semiconductor substrate. The side surface of the insulating material layer has a first wave-shaped pattern in which concave-convex portions are repeated in a direction of the wiring structure that is perpendicular to the semiconductor substrate, and the side surface of the semiconductor substrate has a second wave-shaped pattern in which concave-convex portions are repeated in the direction.

    Semiconductor device and method of fabricating the same

    公开(公告)号:US11935832B2

    公开(公告)日:2024-03-19

    申请号:US17938344

    申请日:2022-10-06

    CPC classification number: H01L23/5283 H01L21/3065 H01L21/78 H01L23/481

    Abstract: A semiconductor device includes a semiconductor substrate having a first surface and a second surface opposing each other, and a side surface between the first and second surfaces, and including a device region on the first surface a wiring structure on the surface of the semiconductor substrate, and having a dielectric layer and a metal wiring in the dielectric layer and electrically connected to the device region, and an insulating material layer on a side surface of the wiring structure and having a side surface connected to the side surface of the semiconductor substrate. The side surface of the insulating material layer has a first wave-shaped pattern in which concave-convex portions are repeated in a direction of the wiring structure that is perpendicular to the semiconductor substrate, and the side surface of the semiconductor substrate has a second wave-shaped pattern in which concave-convex portions are repeated in the direction.

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