ELECTROLESS COBALT-CONTAINING LINER FOR MIDDLE-OF-THE-LINE (MOL) APPLICATIONS
    72.
    发明申请
    ELECTROLESS COBALT-CONTAINING LINER FOR MIDDLE-OF-THE-LINE (MOL) APPLICATIONS 审中-公开
    用于中间线(MOL)应用的电镀含钴包装线

    公开(公告)号:US20070210448A1

    公开(公告)日:2007-09-13

    申请号:US11308186

    申请日:2006-03-10

    IPC分类号: H01L23/48

    摘要: A semiconductor structure that includes a Co-containing liner disposed between an oxygen-getter layer and a metal-containing conductive material is provided. The Co-containing liner, the oxygen-getter layer and the metal-containing conductive material form MOL metallurgy where the Co-containing liner replaces a traditional TiN liner. By “Co-containing” is meant that the liner includes elemental Co alone or elemental Co and at least one of P or B. In order to provide better step coverage of the inventive Co-containing liner within a high aspect ratio contact opening, the Co-containing liner is formed via an electroless deposition process.

    摘要翻译: 提供了包括设置在吸氧剂层和含金属的导电材料之间的含Co衬里的半导体结构。 含Co的内衬,吸氧剂层和含金属的导电材料形成MOL冶金,其中含Co衬垫代替了传统的TiN衬里。 “含Co”是指衬垫包括元素Co单体或元素Co以及P或B中的至少一种。为了在高纵横比接触开口内提供本发明的含Co衬垫的更好的台阶覆盖, 通过无电镀沉积工艺形成含钴内衬。

    Metal cap for interconnect structures
    74.
    发明授权
    Metal cap for interconnect structures 有权
    用于互连结构的金属盖

    公开(公告)号:US07790599B2

    公开(公告)日:2010-09-07

    申请号:US11734958

    申请日:2007-04-13

    IPC分类号: H01L21/4763

    摘要: A structure and method of forming an improved metal cap for interconnect structures is described. The method includes forming an interconnect feature in an upper portion of a first insulating layer; deposing a dielectric capping layer over the interconnect feature and the first insulating layer; depositing a second insulating layer over the dielectric capping layer; etching a portion of the second insulating layer to form a via opening, wherein the via opening exposes a portion of the interconnect feature; bombarding the portion of the interconnect feature for defining a gauging feature in a portion of the interconnect feature; etching the via gauging feature for forming an undercut area adjacent to the interconnect feature and the dielectric capping layer; depositing a noble metal layer, the noble metal layer filling the undercut area of the via gauging feature to form a metal cap; and depositing a metal layer over the metal cap.

    摘要翻译: 描述了形成用于互连结构的改进的金属帽的结构和方法。 该方法包括在第一绝缘层的上部形成互连特征; 在所述互连特征和所述第一绝缘层上方覆盖介电覆盖层; 在所述电介质覆盖层上沉积第二绝缘层; 蚀刻所述第二绝缘层的一部分以形成通孔开口,其中所述通孔开口暴露所述互连特征的一部分; 轰击互连特征的部分以在互连特征的一部分中定义测量特征; 蚀刻通孔测量特征,用于形成邻近互连特征和电介质覆盖层的底切区域; 沉积贵金属层,所述贵金属层填充通孔测量特征的底切区域以形成金属盖; 以及在所述金属盖上沉积金属层。

    Interconnect structure having enhanced electromigration reliability and a method of fabricating same
    75.
    发明授权
    Interconnect structure having enhanced electromigration reliability and a method of fabricating same 有权
    具有增强的电迁移可靠性的互连结构及其制造方法

    公开(公告)号:US07569475B2

    公开(公告)日:2009-08-04

    申请号:US11560044

    申请日:2006-11-15

    IPC分类号: H01L21/4763

    摘要: An interconnect structure having improved electromigration (EM) reliability is provided. The inventive interconnect structure avoids a circuit dead opening that is caused by EM failure by incorporating a EM preventing liner at least partially within a metal interconnect. In one embodiment, a “U-shaped” EM preventing liner is provided that abuts a diffusion barrier that separates conductive material from the dielectric material. In another embodiment, a space is located between the “U-shaped” EM preventing liner and the diffusion barrier. In yet another embodiment, a horizontal EM liner that abuts the diffusion barrier is provided. In yet a further embodiment, a space exists between the horizontal EM liner and the diffusion barrier.

    摘要翻译: 提供了具有改进的电迁移(EM)可靠性的互连结构。 本发明的互连结构避免了通过将至少部分地在金属互连内部结合EM防止衬垫而由EM故障引起的电路死路。 在一个实施例中,提供了一种“U形”防EM衬垫,其与导电材料与电介质材料分离的扩散屏障相邻。 在另一个实施例中,空间位于“U形”EM防护衬垫和扩散阻挡层之间。 在另一个实施例中,提供了一个与扩散阻挡件相邻的水平EM衬垫。 在又一个实施例中,在水平EM衬垫和扩散阻挡层之间存在一个空间。

    Method to generate porous organic dielectric
    76.
    发明申请
    Method to generate porous organic dielectric 失效
    生成多孔有机电介质的方法

    公开(公告)号:US20050200024A1

    公开(公告)日:2005-09-15

    申请号:US11125549

    申请日:2005-05-10

    摘要: The invention provides a method of forming a wiring layer in an integrated circuit structure that forms an organic insulator, patterns the insulator, deposits a liner on the insulator, and exposes the structure to a plasma to form pores in the insulator in regions next to the liner. The liner is formed thin enough to allow the plasma to pass through the liner and form the pores in the insulator. During the plasma processing, the plasma passes through the liner without affecting the liner. After the plasma processing, additional liner material may be deposited. After this, a conductor is deposited and excess of portions of the conductor are removed from the structure such that the conductor only remains within patterned portions of the insulator. This method produces an integrated circuit structure that has an organic insulator having patterned features, a liner lining the patterned features, and a conductor filling the patterned features. The insulator includes pores along surface areas of the insulator that are in contact with the liner and the pores exist only along the surface areas that are in contact with the liner (the liner is not within the pores).

    摘要翻译: 本发明提供一种形成集成电路结构中的布线层的方法,该集成电路结构形成有机绝缘体,图案化绝缘体,将衬垫沉积在绝缘体上,并将该结构暴露于等离子体,以在绝缘体旁边的区域中形成孔 衬垫。 衬垫形成得足够薄以允许等离子体穿过衬垫并在绝缘体中形成孔。 在等离子体处理期间,等离子体通过衬垫而不影响衬垫。 在等离子体处理之后,可以沉积另外的衬里材料。 此后,导体被沉积,导体的多余部分从结构中移除,使得导体仅保留在绝缘体的图案化部分内。 该方法产生集成电路结构,其具有具有图案化特征的有机绝缘体,衬里图案化特征的衬垫和填充图案化特征的导体。 绝缘体包括与绝缘体的表面区域相接触的孔,该孔与衬垫接触,并且孔仅沿着与衬垫接触的表面区域(衬里不在孔内)存在。

    Interconnect structure having enhanced electromigration reliability and a method of fabricating same
    78.
    发明授权
    Interconnect structure having enhanced electromigration reliability and a method of fabricating same 有权
    具有增强的电迁移可靠性的互连结构及其制造方法

    公开(公告)号:US08138083B2

    公开(公告)日:2012-03-20

    申请号:US12534478

    申请日:2009-08-03

    IPC分类号: H01L21/768

    摘要: An interconnect structure having improved electromigration (EM) reliability is provided. The inventive interconnect structure avoids a circuit dead opening that is caused by EM failure by incorporating a EM preventing liner at least partially within a metal interconnect. In one embodiment, a “U-shaped” EM preventing liner is provided that abuts a diffusion barrier that separates conductive material from the dielectric material. In another embodiment, a space is located between the “U-shaped” EM preventing liner and the diffusion barrier. In yet another embodiment, a horizontal EM liner that abuts the diffusion barrier is provided. In yet a further embodiment, a space exists between the horizontal EM liner and the diffusion barrier.

    摘要翻译: 提供了具有改进的电迁移(EM)可靠性的互连结构。 本发明的互连结构避免了通过将至少部分地在金属互连内部结合EM防止衬垫而由EM故障引起的电路死路。 在一个实施例中,提供了一种“U形”防EM衬垫,其与导电材料与电介质材料分离的扩散屏障相邻。 在另一个实施例中,空间位于“U形”EM防护衬垫和扩散阻挡层之间。 在另一个实施例中,提供了一个与扩散阻挡件相邻的水平EM衬垫。 在又一个实施例中,在水平EM衬垫和扩散阻挡层之间存在一个空间。

    METAL CAP FOR INTERCONNECT STRUCTURES
    79.
    发明申请
    METAL CAP FOR INTERCONNECT STRUCTURES 有权
    用于互连结构的金属盖

    公开(公告)号:US20080254624A1

    公开(公告)日:2008-10-16

    申请号:US11734958

    申请日:2007-04-13

    IPC分类号: H01L21/44

    摘要: A structure and method of forming an improved metal cap for interconnect structures is described. The method includes forming an interconnect feature in an upper portion of a first insulating layer; deposing a dielectric capping layer over the interconnect feature and the first insulating layer; depositing a second insulating layer over the dielectric capping layer; etching a portion of the second insulating layer to form a via opening, wherein the via opening exposes a portion of the interconnect feature; bombarding the portion of the interconnect feature for defining a gauging feature in a portion of the interconnect feature; etching the via gauging feature for forming an undercut area adjacent to the interconnect feature and the dielectric capping layer; depositing a noble metal layer, the noble metal layer filling the undercut area of the via gauging feature to form a metal cap; and depositing a metal layer over the metal cap.

    摘要翻译: 描述了形成用于互连结构的改进的金属帽的结构和方法。 该方法包括在第一绝缘层的上部形成互连特征; 在所述互连特征和所述第一绝缘层上方覆盖介电覆盖层; 在所述电介质覆盖层上沉积第二绝缘层; 蚀刻所述第二绝缘层的一部分以形成通孔开口,其中所述通孔开口暴露所述互连特征的一部分; 轰击互连特征的部分以在互连特征的一部分中定义测量特征; 蚀刻通孔测量特征,用于形成邻近互连特征和电介质覆盖层的底切区域; 沉积贵金属层,所述贵金属层填充通孔测量特征的底切区域以形成金属盖; 以及在所述金属盖上沉积金属层。

    INTERCONNECT STRUCTURE HAVING ENHANCED ELECTROMIGRATION RELIABILTY AND A METHOD OF FABRICATING SAME
    80.
    发明申请
    INTERCONNECT STRUCTURE HAVING ENHANCED ELECTROMIGRATION RELIABILTY AND A METHOD OF FABRICATING SAME 有权
    具有增强电化学可靠性的互连结构及其制造方法

    公开(公告)号:US20080111239A1

    公开(公告)日:2008-05-15

    申请号:US11560044

    申请日:2006-11-15

    IPC分类号: H01L23/52 H01L21/4763

    摘要: An interconnect structure having improved electromigration (EM) reliability is provided. The inventive interconnect structure avoids a circuit dead opening that is caused by EM failure by incorporating a EM preventing liner at least partially within a metal interconnect. In one embodiment, a “U-shaped” EM preventing liner is provided that abuts a diffusion barrier that separates conductive material from the dielectric material. In another embodiment, a space is located between the “U-shaped” EM preventing liner and the diffusion barrier. In yet another embodiment, a horizontal EM liner that abuts the diffusion barrier is provided. In yet a further embodiment, a space exists between the horizontal EM liner and the diffusion barrier.

    摘要翻译: 提供了具有改进的电迁移(EM)可靠性的互连结构。 本发明的互连结构避免了通过将至少部分地在金属互连内部结合EM防止衬垫而由EM故障引起的电路死路。 在一个实施例中,提供了一种“U形”防EM衬垫,其与导电材料与电介质材料分离的扩散阻挡层相邻。 在另一个实施例中,空间位于“U形”EM防护衬垫和扩散阻挡层之间。 在另一个实施例中,提供了一个与扩散阻挡件相邻的水平EM衬垫。 在又一个实施例中,在水平EM衬垫和扩散阻挡层之间存在一个空间。