Graphene and metal interconnects
    12.
    发明专利

    公开(公告)号:GB2523948A

    公开(公告)日:2015-09-09

    申请号:GB201511991

    申请日:2013-12-09

    Applicant: IBM

    Abstract: A graphene and metal interconnect structure and methods of making the same. A multiple layer graphene structure may be grown using a graphene catalyst. The graphene forms an electrical connection 30 between two or more vias (16,36) or components 20, or a combination of vias and components. A via includes a fill metal, with at least a portion of the fill metal 36 being surrounded by a barrier metal 38. A component may be a routing track, a clock signal source, a power source, an electromagnetic signal source, a ground terminal, a transistor, a macrocell, or a combination thereof. The graphene is grown, using a graphene catalyst, from both solid and liquid carbon sources using chemical vapor deposition (CVD) at a temperature between 300°C - 400°C. The graphene catalyst can be an elemental form of, or alloy including, nickel, palladium, ruthenium, iridium or copper.

    Method of improving mechanical properties of semiconductor interconnects with nanoparticles

    公开(公告)号:GB2497485B

    公开(公告)日:2014-12-24

    申请号:GB201305611

    申请日:2011-08-10

    Applicant: IBM

    Abstract: In a BEOL process, UV radiation is used in a curing process of ultra low-k (ULK) dielectrics. This radiation penetrates through the ULK material and reaches the cap film underneath it. The interaction between the UV light and the film leads to a change the properties of the cap film. Of particular concern is the change in the stress state of the cap from compressive to tensile stress. This leads to a weaker dielectric-cap interface and mechanical failure of the ULK film. A layer of nanoparticles is inserted between the cap and the ULK film. The nanoparticles absorb the UV light before it can damage the cap film, thus maintaining the mechanical integrity of the ULK dielectric.

    Method of improving mechanical properties of semiconductor interconnects with nanoparticles

    公开(公告)号:GB2497485A

    公开(公告)日:2013-06-12

    申请号:GB201305611

    申请日:2011-08-10

    Applicant: IBM

    Abstract: In a BEOL process, UV radiation is used in a curing process of ultra low-k (ULK) dielectrics 100. This radiation penetrates through the ULK material and reaches the cap film underneath it. The interaction between the UV light and the film leads to a change the properties of the cap film. Of particular concern is the change in the stress state of the cap from compressive to tensile stress. This leads to a weaker dielectric-cap interface and mechanical failure of the ULK film. A layer of nanoparticles 120 is inserted between the cap 130 and the ULK film. The nanoparticles absorb the UV light before it can damage the cap film, thus maintaining the mechanical integrity of the ULK dielectric.

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