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    Methods and apparatus of creating airgap in dielectric layers for the reduction of RC delay
    1.
    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

    申请人： Amir Al-Bayati ,  Alexandros T. Demos ,  Kang Sub Yim ,  Mehul Naik ,  Zhenjiang “David” Cui ,  Mihaela Balseanu ,  Meiyee (Maggie Le) Shek ,  Li-Qun Xia

    发明人： Amir Al-Bayati ,  Alexandros T. Demos ,  Kang Sub Yim ,  Mehul Naik ,  Zhenjiang “David” Cui ,  Mihaela Balseanu ,  Meiyee (Maggie Le) Shek ,  Li-Qun Xia

    IPC分类号： H01L21/76

    CPC分类号： H01L21/7682 ,  H01L21/3105 ,  H01L21/31111 ,  H01L21/31144 ,  H01L21/76825 ,  H01L21/76834 ,  H01L21/76849 ,  H01L21/76885

    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。

    METHODS AND APPARATUS OF CREATING AIRGAP IN DIELECTRIC LAYERS FOR THE REDUCTION OF RC DELAY
    2.
    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

    申请人： AMIR AL-BAYATI ,  Alexandros T. Demos ,  Kang Sub Yim ,  Mehul Naik ,  Zhenjiang 'David' Cui ,  Mihaela Balseanu ,  Meiyee (Maggie Le) Shek ,  Li-Qun Xia

    发明人： AMIR AL-BAYATI ,  Alexandros T. Demos ,  Kang Sub Yim ,  Mehul Naik ,  Zhenjiang 'David' Cui ,  Mihaela Balseanu ,  Meiyee (Maggie Le) Shek ,  Li-Qun Xia

    IPC分类号： H01L21/4763

    CPC分类号： H01L21/7682 ,  H01L21/3105 ,  H01L21/31111 ,  H01L21/31144 ,  H01L21/76825 ,  H01L21/76834 ,  H01L21/76849 ,  H01L21/76885

    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。

    METHODS AND APPARATUS OF CREATING AIRGAP IN DIELECTRIC LAYERS FOR THE REDUCTION OF RC DELAY
    3.
    发明申请
    METHODS AND APPARATUS OF CREATING AIRGAP IN DIELECTRIC LAYERS FOR THE REDUCTION OF RC DELAY 审中-公开
    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：US20110104891A1

    公开(公告)日：2011-05-05

    申请号：US12986809

    申请日：2011-01-07

    申请人： AMIR AL-BAYATI ,  Alexandros T. Demos ,  Kang Sub Yim ,  Mehul Naik ,  Zhenjiang David Cui ,  Mihaela Balseanu ,  Meiyee Maggie Le Shek ,  Li-Qun Xia

    发明人： AMIR AL-BAYATI ,  Alexandros T. Demos ,  Kang Sub Yim ,  Mehul Naik ,  Zhenjiang David Cui ,  Mihaela Balseanu ,  Meiyee Maggie Le Shek ,  Li-Qun Xia

    IPC分类号： H01L21/768

    CPC分类号： H01L21/7682 ,  H01L21/3105 ,  H01L21/31111 ,  H01L21/31144 ,  H01L21/76825 ,  H01L21/76834 ,  H01L21/76849 ,  H01L21/76885

    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。