METHODS AND APPARATUS OF CREATING AIRGAP IN DIELECTRIC LAYERS FOR THE REDUCTION OF RC DELAY
    45.
    发明申请
    METHODS AND APPARATUS OF CREATING AIRGAP IN DIELECTRIC LAYERS FOR THE REDUCTION OF RC DELAY 有权
    用于减少RC延迟的电介质层中产生气泡的方法和装置

    公开(公告)号:US20090093112A1

    公开(公告)日:2009-04-09

    申请号:US11869396

    申请日:2007-10-09

    IPC分类号: H01L21/4763

    摘要: A method and apparatus for generating air gaps in a dielectric material of an interconnect structure. One embodiment provides a method for forming a semiconductor structure comprising depositing a first dielectric layer on a substrate, forming trenches in the first dielectric layer, filling the trenches with a conductive material, planarizing the conductive material to expose the first dielectric layer, depositing a dielectric barrier film on the conductive material and exposed first dielectric layer, depositing a hard mask layer over the dielectric barrier film, forming a pattern in the dielectric barrier film and the hard mask layer to expose selected regions of the substrate, oxidizing at least a portion of the first dielectric layer in the selected region of the substrate, removing oxidized portion of the first dielectric layer to form reversed trenches around the conductive material, and forming air gaps in the reversed trenches while depositing a second dielectric material in the reversed trenches.

    摘要翻译: 一种用于在互连结构的电介质材料中产生气隙的方法和装置。 一个实施例提供了一种用于形成半导体结构的方法,包括在衬底上沉积第一介电层,在第一介电层中形成沟槽,用导电材料填充沟槽,平坦化导电材料以暴露第一介电层, 在导电材料和暴露的第一电介质层上的阻挡膜,在介电阻挡膜上沉积硬掩模层,在介电阻挡膜和硬掩模层中形成图案,以暴露衬底的选定区域,氧化至少一部分 在衬底的选定区域中的第一介电层,去除第一电介质层的氧化部分以在导电材料周围形成反向沟槽,以及在反向沟槽中形成气隙,同时在反向沟槽中沉积第二电介质材料。

    MODULATED COMPOSITIONAL AND STRESS CONTROLLED MULTILAYER ULTRATHIN CONFORMAL SiNx DIELECTRICS USED IN NANO DEVICE FABRICATION
    47.
    发明申请
    MODULATED COMPOSITIONAL AND STRESS CONTROLLED MULTILAYER ULTRATHIN CONFORMAL SiNx DIELECTRICS USED IN NANO DEVICE FABRICATION 审中-公开
    在纳米器件制造中使用的调制组合和应力控制的多层超大规模SiNx电介质

    公开(公告)号:US20130333923A1

    公开(公告)日:2013-12-19

    申请号:US13495545

    申请日:2012-06-13

    IPC分类号: C23C16/34 H05K1/02

    摘要: A layer of silicon nitride having a thickness from 0.5 nanometers to 2.4 nanometers is deposited on a substrate. A plasma nitridation process is carried out on the layer. These steps are repeated for a plurality of additional layers of silicon nitride, until a predetermined thickness is attained. Such steps can be used to provide a multilayer silicon nitride dielectric formed on a substrate having an upper surface of dielectric material with Cu and other conductors embedded within, and a plurality of steps. The multilayer silicon nitride dielectric has a plurality of individual layers each having a thickness from 0.5 nanometers to 2.4 nanometers, and the multilayer silicon nitride dielectric conformally covers the steps of the substrate with a conformality of at least seventy percent. A multilayer silicon nitride dielectric, and a multilevel back end of line interconnect wiring structure using same, are also provided.

    摘要翻译: 将厚度为0.5纳米至2.4纳米的氮化硅层沉积在基底上。 在层上进行等离子体氮化处理。 对于多个附加氮化硅层重复这些步骤,直到达到预定厚度。 可以使用这样的步骤来提供形成在具有介电材料的上表面的衬底上的多层氮化硅电介质,其中Cu和其它导体嵌入其中并且多个步骤。 多层氮化硅电介质具有各自具有0.5纳米至2.4纳米厚度的多个单独层,多层氮化硅电介质保形地覆盖具有至少百分之七十的保形度的基底的步骤。 还提供了多层氮化硅电介质,以及使用该多层氮化硅电介质的多层后端的布线结构。

    Methods and apparatus of creating airgap in dielectric layers for the reduction of RC delay
    49.
    发明授权
    Methods and apparatus of creating airgap in dielectric layers for the reduction of RC delay 有权
    在电介质层中产生气隙以减少RC延迟的方法和装置

    公开(公告)号:US07879683B2

    公开(公告)日:2011-02-01

    申请号:US11869396

    申请日:2007-10-09

    IPC分类号: H01L21/76

    摘要: A method and apparatus for generating air gaps in a dielectric material of an interconnect structure. One embodiment provides a method for forming a semiconductor structure comprising depositing a first dielectric layer on a substrate, forming trenches in the first dielectric layer, filling the trenches with a conductive material, planarizing the conductive material to expose the first dielectric layer, depositing a dielectric barrier film on the conductive material and exposed first dielectric layer, depositing a hard mask layer over the dielectric barrier film, forming a pattern in the dielectric barrier film and the hard mask layer to expose selected regions of the substrate, oxidizing at least a portion of the first dielectric layer in the selected region of the substrate, removing oxidized portion of the first dielectric layer to form reversed trenches around the conductive material, and forming air gaps in the reversed trenches while depositing a second dielectric material in the reversed trenches.

    摘要翻译: 一种用于在互连结构的电介质材料中产生气隙的方法和装置。 一个实施例提供了一种用于形成半导体结构的方法,包括在衬底上沉积第一介电层,在第一介电层中形成沟槽,用导电材料填充沟槽,平坦化导电材料以暴露第一介电层, 在导电材料和暴露的第一电介质层上的阻挡膜,在介电阻挡膜上沉积硬掩模层,在介电阻挡膜和硬掩模层中形成图案,以暴露衬底的选定区域,氧化至少一部分 在衬底的选定区域中的第一介电层,去除第一电介质层的氧化部分以在导电材料周围形成反向沟槽,以及在反向沟槽中形成气隙,同时在反向沟槽中沉积第二电介质材料。