Method of selectively depositing a metal layer in an opening in a dielectric layer by forming a metal-deposition-prevention layer around the opening of the dielectric layer
    2.
    发明授权
    Method of selectively depositing a metal layer in an opening in a dielectric layer by forming a metal-deposition-prevention layer around the opening of the dielectric layer 有权
    通过在电介质层的开口周围形成金属沉积防止层来选择性地在电介质层的开口中沉积金属层的方法

    公开(公告)号:US06432820B1

    公开(公告)日:2002-08-13

    申请号:US09921165

    申请日:2001-08-02

    IPC分类号: H01L2144

    摘要: A method is provided for forming a metal wiring layer of a semiconductor device, which is performed in an airtight space, the pressure of which is maintained below atmospheric pressure, to form a metal deposition prevention layer. An interlayer dielectric layer pattern is formed on a semiconductor substrate so as to define a hole region. A metal film is formed on the top surface of the interlayer dielectric layer pattern under a vacuum state so as to expose the side walls of the hole region. The metal layer is oxidized in the airtight space, the pressure of which is maintained below atmospheric pressure in an oxygen atmosphere, thereby forming a metal deposition prevention layer. A metal liner is selectively formed at the side walls of the hole region. A metal layer is formed inside the hole region defined by the metal liner and on the metal deposition prevention layer. The metal liner is heat-treated and reflowed.

    摘要翻译: 提供了一种用于形成半导体器件的金属布线层的方法,该方法是在压力保持在大气压以下的气密空间中进行,以形成金属沉积防止层。 在半导体衬底上形成层间绝缘层图案,以限定一个孔区。 在真空状态下在层间电介质层图案的顶表面上形成金属膜,以露出孔区域的侧壁。 金属层在气氛中被氧化,其压力在氧气氛中保持低于大气压,从而形成金属沉积防止层。 在孔区域的侧壁上选择性地形成金属衬垫。 在由金属衬垫和金属沉积防止层限定的孔区域内形成金属层。 金属衬垫被热处理和回流。

    Method for forming metal interconnection in semiconductor device and interconnection structure fabricated thereby
    5.
    发明授权
    Method for forming metal interconnection in semiconductor device and interconnection structure fabricated thereby 有权
    用于在半导体器件中形成金属互连的方法和由此制造的互连结构

    公开(公告)号:US06391769B1

    公开(公告)日:2002-05-21

    申请号:US09525154

    申请日:2000-03-14

    IPC分类号: H01L214763

    摘要: A method for forming a metal interconnection filling a contact hole or a groove having a high aspect ratio, and a contact structure fabricated thereby. An interdielectric layer pattern, having a recessed region serving as a contact hole, a via hole or a groove, is formed on a semiconductor substrate. A barrier metal layer is formed on the entire surface of the resultant structure where the interdielectric layer pattern is formed. An anti-nucleation layer is selectively formed only on the non-recessed region of the barrier metal layer. The anti-nucleation layer is formed by forming a metal layer overlying the barrier metal layer in regions other than the recessed region, and then spontaneously oxidizing the metal layer in a vacuum. Also, the anti-nucleation layer may be formed by in-situ forming the barrier metal layer and the metal layer and then oxidizing the metal layer by an annealing process. Subsequently, a metal plug is selectively formed in the recessed region, surrounded by the barrier metal layer, thereby forming a metal interconnection for completely filling the contact hole or the groove having a high aspect ratio. A metal liner may be formed instead of the metal plug, followed by forming a metal layer filling the region surrounded by the metal liner, thereby forming a metal interconnection for completely filling the contact hole or groove having a high aspect ratio.

    摘要翻译: 一种用于形成填充高纵横比的接触孔或槽的金属互连的方法,以及由此制造的接触结构。 在半导体衬底上形成具有用作接触孔的凹陷区域,通孔或沟槽的电介质层图案。 在形成介电层图案的所得结构的整个表面上形成阻挡金属层。 仅在阻挡金属层的非凹陷区域选择性地形成抗成核层。 通过在除了凹陷区域之外的区域中形成覆盖阻挡金属层的金属层,然后在真空中自发氧化金属层,形成抗成核层。 此外,抗成核层可以通过原位形成阻挡金属层和金属层,然后通过退火处理来氧化金属层而形成。 随后,在由阻挡金属层包围的凹陷区域中选择性地形成金属插塞,从而形成用于完全填充接触孔或具有高纵横比的沟槽的金属互连。 可以形成金属衬垫而不是金属插塞,随后形成填充由金属衬垫包围的区域的金属层,从而形成用于完全填充具有高纵横比的接触孔或槽的金属互连。

    METHODS OF FORMING SEMICONDUCTOR DEVICES INCLUDING LANDING PADS FORMED BY ELECTROLESS PLATING
    8.
    发明申请
    METHODS OF FORMING SEMICONDUCTOR DEVICES INCLUDING LANDING PADS FORMED BY ELECTROLESS PLATING 有权
    形成半导体器件的方法,包括通过电镀镀层形成的引线垫

    公开(公告)号:US20110003476A1

    公开(公告)日:2011-01-06

    申请号:US12829776

    申请日:2010-07-02

    IPC分类号: H01L21/768

    摘要: A semiconductor device in which an increase of contact resistance Rc between a metal contact and a plug due to misalignment between the metal contact and the plug can be reduced and the difficulty of a Cu filling process during the process of forming the plug may be reduced. The semiconductor device includes a substrate including an active area and a device isolation layer; a metal contact that is formed on the substrate and is electrically connected to the active area; a landing pad formed on the metal contact by electroless plating; and a plug that is formed on the landing pad and is electrically connected to the metal contact via the landing pad.

    摘要翻译: 可以减少由于金属接触和插塞之间的未对准而导致金属接触和插塞之间的接触电阻Rc增大的半导体器件,并且可以减少在形成插头的过程中Cu填充过程的困难。 半导体器件包括:衬底,其包括有源区和器件隔离层; 金属接触件,其形成在所述基板上并电连接到所述有源区域; 通过无电镀形成在金属接触件上的着陆垫; 以及形成在所述着陆板上并且经由所述着陆垫电连接到所述金属接触件的插头。

    Methods of forming semiconductor devices including landing pads formed by electroless plating
    10.
    发明授权
    Methods of forming semiconductor devices including landing pads formed by electroless plating 有权
    形成半导体器件的方法,包括通过无电镀形成的着陆焊盘

    公开(公告)号:US08497207B2

    公开(公告)日:2013-07-30

    申请号:US12829776

    申请日:2010-07-02

    IPC分类号: H01L21/00

    摘要: A semiconductor device in which an increase of contact resistance Rc between a metal contact and a plug due to misalignment between the metal contact and the plug can be reduced and the difficulty of a Cu filling process during the process of forming the plug may be reduced. The semiconductor device includes a substrate including an active area and a device isolation layer; a metal contact that is formed on the substrate and is electrically connected to the active area; a landing pad formed on the metal contact by electroless plating; and a plug that is formed on the landing pad and is electrically connected to the metal contact via the landing pad.

    摘要翻译: 可以减少由于金属接触和插塞之间的未对准而导致金属接触和插塞之间的接触电阻Rc增大的半导体器件,并且可以减少在形成插头的过程中Cu填充过程的困难。 半导体器件包括:衬底,其包括有源区和器件隔离层; 金属接触件,其形成在所述基板上并电连接到所述有源区域; 通过无电镀形成在金属接触件上的着陆垫; 以及形成在所述着陆板上并且经由所述着陆垫电连接到所述金属接触件的插头。