Semiconductor device structure and methods of forming the same

    公开(公告)号:US11557511B2

    公开(公告)日:2023-01-17

    申请号:US17146821

    申请日:2021-01-12

    摘要: An interconnection structure, along with methods of forming such, are described. The structure includes a dielectric layer, a first conductive feature disposed in the dielectric layer, and a conductive layer disposed over the dielectric layer. The conductive layer includes a first portion and a second portion adjacent the first portion, and the second portion of the conductive layer is disposed over the first conductive feature. The structure further includes a first barrier layer in contact with the first portion of the conductive layer, a second barrier layer in contact with the second portion of the conductive layer, and a support layer in contact with the first and second barrier layers. An air gap is located between the first and second barrier layers, and the dielectric layer and the support layer are exposed to the air gap.

    INTERCONNECT STRUCUTRE WITH PROTECTIVE ETCH-STOP

    公开(公告)号:US20220293462A1

    公开(公告)日:2022-09-15

    申请号:US17829611

    申请日:2022-06-01

    摘要: In some embodiments, the present disclosure relates to an integrated chip. The integrated chip may comprise a first metal line disposed over a substrate. A via may be disposed directly over a top of the first metal line and the via may comprise a first lower surface and a second lower surface above the first lower surface. A first dielectric structure may be disposed laterally adjacent to the first metal line and may be disposed along a sidewall of the first metal line. A first protective etch-stop structure may be disposed directly over a top of the first dielectric structure and the first protective etch-stop structure may vertically separate the second lower surface of the via from the top of the first dielectric structure.

    NOVEL SELF-ALIGNED VIA STRUCTURE BY SELECTIVE DEPOSITION

    公开(公告)号:US20220285266A1

    公开(公告)日:2022-09-08

    申请号:US17193595

    申请日:2021-03-05

    摘要: In one embodiment, a self-aligned via is presented. In one embodiment, an inhibitor layer is selectively deposited on the lower conductive region. In one embodiment, a dielectric is selectively deposited on the lower conductive region. In one embodiment, the deposited dielectric may be selectively etched. In one embodiment, an inhibitor is selectively deposited on the lower dielectric region. In one embodiment, a dielectric is selectively deposited on the lower dielectric region. In one embodiment, the deposited dielectric over the lower conductive region has a different etch rate than the deposited dielectric over the lower dielectric region which may lead to a via structure that is aligned with the lower conductive region.