INTERCONNECTION STRUCTURE AND METHOD FOR FORMING THE SAME

    公开(公告)号:US20190096806A1

    公开(公告)日:2019-03-28

    申请号:US16200076

    申请日:2018-11-26

    Abstract: A structure includes a non-insulator structure, an etch stop layer, a dielectric layer, a conductive feature, and a first diffusion barrier layer. The etch stop layer is over the non-insulator structure. The dielectric layer is over the etch stop layer. The conductive feature is in the dielectric layer. The first diffusion barrier layer wraps around the conductive feature, the first diffusion barrier layer has a base portion between the non-insulator structure and the conductive feature, and the first diffusion barrier layer has a lateral extension from the base portion of the first diffusion barrier layer.

    INTERCONNECT STRUCTURE WITH LOW RESISTIVITY AND METHOD FOR FORMING THE SAME

    公开(公告)号:US20200091055A1

    公开(公告)日:2020-03-19

    申请号:US16135088

    申请日:2018-09-19

    Abstract: A method for forming a semiconductor device structure is provided. The method includes forming a first conductive feature over a substrate. The method also includes forming an insulating layer over the substrate and covering the first conductive feature. The method also includes forming a first opening in the insulating layer to expose the first conductive feature. The method also includes recessing the exposed first conductive feature through the first opening, so as to form a second opening in the first conductive feature and below the first opening. The method also includes filling the first opening and the second opening with a second conductive feature.

Patent Agency Ranking