Semiconductor device including through-electrodes

    公开(公告)号:US11961788B2

    公开(公告)日:2024-04-16

    申请号:US17708137

    申请日:2022-03-30

    Abstract: A semiconductor device includes: a semiconductor substrate having opposing first side and second sides; an active region and an isolation region on the first side; a circuit device on the active region; a front side interconnection structure on the first side and including front side interconnection layers disposed on different levels; first and second back side interconnection structures below the second side; a buried structure having a portion disposed in the isolation region and including a conductive line; a first through-electrode structure including a first through-electrode contacting the conductive line and penetrating the semiconductor substrate between the conductive line and the first back side interconnection structure; and a second through-electrode structure including a second through-electrode penetrating the semiconductor substrate between a first front side interconnection layer and the second back side interconnection structure. The first front side interconnection layer is on a level higher than that of the conductive line.

    Semiconductor device
    25.
    发明授权

    公开(公告)号:US11804419B2

    公开(公告)日:2023-10-31

    申请号:US17185166

    申请日:2021-02-25

    Abstract: A semiconductor device may include a substrate including a first surface and a second surface, which are opposite to each other, an insulating layer on the first surface of the substrate, a first via structure and a second via structure penetrating the substrate and a portion of the insulating layer and having different widths from each other in a direction parallel to the first surface of the substrate, metal lines provided in the insulating layer, and an integrated circuit provided on the first surface of the substrate. A bottom surface of the first via structure may be located at a level lower than a bottom surface of the second via structure, when measured from the first surface of the substrate. The second via structure may be electrically connected to the integrated circuit through the metal lines.

    Semiconductor devices including through vias and methods of fabricating the same

    公开(公告)号:US11791211B2

    公开(公告)日:2023-10-17

    申请号:US17691178

    申请日:2022-03-10

    CPC classification number: H01L21/76898 H01L21/02068 H01L21/76831

    Abstract: Disclosed are semiconductor devices including through vias and methods of fabricating the same. The methods may include forming a first structure including a metal pattern and a second structure on the first structure. The metal pattern includes an upper surface facing the second structure. The methods may also include etching the second structure to form a via hole exposing the metal pattern, oxidizing a first etch residue in the via hole to convert the first etch residue into an oxidized first etch residue, and removing the oxidized first etch residue. After removing the oxidized first etch residue, the upper surface of the metal pattern may include a first portion that includes a recess and has a first surface roughness and a second portion that is different from the first portion and has a second surface roughness. The first surface roughness may be greater than the second surface roughness.

    SEMICONDUCTOR DEVICE
    28.
    发明申请

    公开(公告)号:US20220359348A1

    公开(公告)日:2022-11-10

    申请号:US17645472

    申请日:2021-12-22

    Abstract: A semiconductor device includes a semiconductor substrate having a first surface adjacent to an active layer; a first insulating layer disposed on the first surface of the semiconductor substrate; a second insulating layer disposed on the first insulating layer; an etch stop structure interposed between the first insulating layer and the second insulating layer and including a plurality of etch stop layers; a contact wiring pattern disposed inside the second insulating layer and surrounded by at least one etch stop layer of the plurality of etch stop layers; and a through electrode structure configured to pass through the semiconductor substrate, the first insulating layer, and at least one etch stop layer of the plurality of etch stop layers in a vertical direction and contact the contact wiring pattern.

    Semiconductor device
    29.
    发明授权

    公开(公告)号:US11380607B2

    公开(公告)日:2022-07-05

    申请号:US17147927

    申请日:2021-01-13

    Abstract: A semiconductor device includes a substrate having a first surface on which an active region is disposed, and a second surface opposite the first surface, a buried conductive line extending in one direction and having a portion buried in the active region, an insulating portion covering the buried conductive line, a contact structure disposed on the insulating portion and connected to the buried conductive line, a through-hole extending from the second surface to the insulating portion and exposing the buried portion of the buried conductive line, an insulating isolation film disposed on a side surface of the buried conductive line and exposing a bottom surface of the buried portion and a side surface adjacent to the bottom surface, a through-via contacting the bottom surface and the adjacent side surface of the buried conductive line, an insulating liner surrounding the through-via.

    SEMICONDUCTOR DEVICE AND SEMICONDUCTOR PACKAGE

    公开(公告)号:US20210020543A1

    公开(公告)日:2021-01-21

    申请号:US16794782

    申请日:2020-02-19

    Abstract: A semiconductor device includes a semiconductor substrate including at least one semiconductor structure, an interlayer insulating layer disposed on the semiconductor substrate, at least one first via structure penetrating the semiconductor substrate and the interlayer insulating layer, including a first region having a first width at an upper surface of the interlayer insulating layer and a second region extending from the first region and having a second width at a lower surface of the semiconductor substrate, wherein a side surface of the first region and a side surface of the second region have different profiles at a boundary between the first region and the second region, and at least one second via structure penetrating the semiconductor substrate and the interlayer insulating layer and having a third width greater than the first width at an upper surface of the interlayer insulating layer.

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