EFFICIENT INTERCONNECT STRUCTURE FOR ELECTRICAL FUSE APPLICATIONS
    3.
    发明申请
    EFFICIENT INTERCONNECT STRUCTURE FOR ELECTRICAL FUSE APPLICATIONS 审中-公开
    电气保险丝应用的有效互连结构

    公开(公告)号:WO2009139962A3

    公开(公告)日:2010-01-07

    申请号:PCT/US2009038380

    申请日:2009-03-26

    Abstract: A semiconductor structure is provided that includes an interconnect structure and a fuse structure located in different areas, yet within the same interconnect level. The interconnect structure has high electromigration resistance, while the fuse structure has a lower electromigration resistance as compared with the interconnect structure. The fuse structure includes a conductive material embedded within an interconnect dielectric in which the upper surface of the conductive material has a high concentration of oxygen present therein. A dielectric capping layer is located atop the dielectric material and the conductive material. The presence of the surface oxide layer at the interface between the conductive material and the dielectric capping layer degrades the adhesion between the conductive material and the dielectric capping layer. As such, when current is provided to the fuse structure electromigration of the conductive material occurs and over time an opening is formed in the conductive material blowing the fuse element.

    Abstract translation: 提供了一种半导体结构,其包括互连结构和位于相同互连级别内的不同区域中的熔丝结构。 互连结构具有高的电迁移率,而与互连结构相比,熔丝结构具有较低的电迁移电阻。 熔丝结构包括嵌入在互连电介质内的导电材料,其中导电材料的上表面具有存在于其中的高浓度的氧。 电介质覆盖层位于电介质材料和导电材料的顶部。 在导电材料和电介质覆盖层之间的界面处的表面氧化物层的存在降低了导电材料和电介质覆盖层之间的粘合性。 因此,当电流提供给熔丝结构时,导电材料的电迁移发生,并且随着时间的推移,在引导熔丝元件的导电材料中形成开口。

    DISCONTINUOUS/NON-UNIFORM METAL CAP STRUCTURE AND PROCESS FOR INTERCONNECT INTEGRATION

    公开(公告)号:SG188903A1

    公开(公告)日:2013-04-30

    申请号:SG2013019146

    申请日:2009-07-21

    Applicant: IBM

    Abstract: DISCONTINUOUS/NON-UNIFORM METAL CAP STRUCTURE AND PROCESS FOR INTERCONNECT INTEGRATIONAbstractAn interconnect structure including a noble metal-containing cap that is present at least on some portion of an upper surface of at least one conductive material that is embedded within an interconnect dielectric material is provided. In one embodiment, the noble metal-containing cap is discontinuous, e.g., exists as nuclei or islands on the surface of the at least one conductive material. In another embodiment, the noble metal-containing cap has a non-uniform thickness across the surface of the at least one conductive material.Fig. 4E

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