Methods for forming metal wiring layers and metal interconnects and metal interconnects formed thereby
    61.
    发明授权
    Methods for forming metal wiring layers and metal interconnects and metal interconnects formed thereby 有权
    用于形成金属布线层和金属互连的方法以及由此形成的金属互连

    公开(公告)号:US06602782B2

    公开(公告)日:2003-08-05

    申请号:US09862937

    申请日:2001-05-22

    IPC分类号: H01L2144

    摘要: Methods of forming a metal interconnects include forming an electrically insulating layer having a contact hole therein, on a substrate. A step is also performed to form an electrically conductive seed layer. The seed layer extends on a sidewall of the contact hole and on a portion of an upper surface of the electrically insulating layer extending adjacent the contact hole. The seed layer is sufficiently thick along an upper portion of the sidewall and sufficiently thin along a lower portion of the sidewall that an upper portion of the contact hole is partially constricted by the seed layer and a constricted contact hole is thereby defined. An anti-nucleation layer is deposited on a portion of the seed layer that extends outside the constricted contact hole. The constricted contact hole is used as a mask to inhibit deposition of the anti-nucleation layer adjacent a bottom of the constricted contact hole. A metal liner is then formed on a portion of the electrically conductive seed layer that defines a sidewall of the constricted contact hole. Next, a metal interconnect layer is reflowed into the constricted contact hole to thereby fill and bury the contact hole.

    摘要翻译: 形成金属互连的方法包括在基板上形成其中具有接触孔的电绝缘层。 还进行步骤以形成导电种子层。 种子层在接触孔的侧壁上延伸,并且在邻近接触孔延伸的电绝缘层的上表面的一部分上延伸。 种子层沿着侧壁的上部足够厚,并且沿着侧壁的下部足够薄,接触孔的上部被种子层部分地收缩,从而限定了收缩的接触孔。 在种子层的在收缩的接触孔外延伸的部分上沉积抗成核层。 收缩的接触孔用作掩模以抑制邻接于缩小的接触孔的底部的防着色层的沉积。 然后在导电种子层的限定收缩的接触孔的侧壁的部分上形成金属衬垫。 接下来,将金属互连层回流到收缩的接触孔中,从而填充并埋入接触孔。

    Methods for forming aluminum metal wirings
    62.
    发明授权
    Methods for forming aluminum metal wirings 有权
    铝金属布线形成方法

    公开(公告)号:US06673718B1

    公开(公告)日:2004-01-06

    申请号:US10305244

    申请日:2002-11-27

    IPC分类号: H01L2144

    摘要: An aluminum wiring is selectively formed within a contact hole or groove of a substrate. An intermediate layer which includes nitrogen is formed over the main surface of a substrate and over the interior surface of the contact hole or groove. A first surface portion of the intermediate layer which is located over the main surface of the substrate is treated with a plasma to form a passivity layer at the first surface portion of the intermediate layer. Then, without an intervening vacuum break, an aluminum film is CAD deposited only over a second surface portion of the intermediate layer which is located over the interior surface of the contact hole or recess. The plasma treatment of the first surface portion of the intermediate layer prevents the CAD deposition of the aluminum film over the first surface portion of the intermediate layer.

    摘要翻译: 在基板的接触孔或凹槽内选择性地形成铝布线。 包含氮的中间层形成在基板的主表面上并在接触孔或凹槽的内表面上方。 用等离子体处理位于基板的主表面上方的中间层的第一表面部分,以在中间层的第一表面部分处形成被动层。 然后,没有中间真空断裂,铝膜仅沉积在中间层的位于接触孔或凹槽的内表面上方的第二表面部分上。 中间层的第一表面部分的等离子体处理防止铝膜在中间层的第一表面部分上的CAD沉积。

    Method of fabricating semiconductor device
    63.
    发明授权
    Method of fabricating semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US08889543B2

    公开(公告)日:2014-11-18

    申请号:US13795807

    申请日:2013-03-12

    IPC分类号: H01L21/4763 H01L21/768

    摘要: A method of fabricating a semiconductor device includes forming switching devices on a substrate. A lower structure is formed in the substrate having the switching devices. A lower conductive layer is formed on the lower structure. Sacrificial mask patterns are formed on the lower conductive layer. Lower conductive patterns are formed by etching the lower conductive layer using the sacrificial mask patterns as an etch mask. An interlayer insulating layer is formed on the substrate having the lower conductive patterns. Interlayer insulating patterns are formed by planarizing the interlayer insulating layer until the sacrificial mask patterns are exposed. Openings exposing the lower conductive patterns are formed by removing the exposed sacrificial mask patterns. Upper conductive patterns self-aligned with the lower conductive patterns are formed in the openings.

    摘要翻译: 制造半导体器件的方法包括在衬底上形成开关器件。 在具有开关装置的基板中形成下部结构。 下导电层形成在下结构上。 牺牲掩模图案形成在下导电层上。 通过使用牺牲掩模图案作为蚀刻掩模蚀刻下导电层来形成下导电图案。 在具有较低导电图案的基板上形成层间绝缘层。 通过平坦化层间绝缘层直到牺牲掩模图案曝光来形成层间绝缘图案。 通过去除暴露的牺牲掩模图案来形成露出下导电图案的开口。 在开口中形成与下导电图案自对准的上导电图案。

    METHODS OF FORMING METAL INTERCONNECTION STRUCTURES
    64.
    发明申请
    METHODS OF FORMING METAL INTERCONNECTION STRUCTURES 有权
    形成金属互连结构的方法

    公开(公告)号:US20100151672A1

    公开(公告)日:2010-06-17

    申请号:US12711812

    申请日:2010-02-24

    IPC分类号: H01L21/768

    摘要: Methods of forming a metal interconnection structure are provided. The methods include forming an insulating layer on a semiconductor substrate including a first metal interconnection. The insulating layer is patterned to form an opening that exposes the first metal interconnection. A first diffusion barrier layer is formed on the exposed first metal interconnection. After forming the first diffusion barrier layer, a second diffusion barrier layer is formed on the first diffusion barrier layer in the opening, the second diffusion barrier layer contacting a sidewall of the opening. A second metal interconnection is formed on the second diffusion barrier layer.

    摘要翻译: 提供形成金属互连结构的方法。 所述方法包括在包括第一金属互连的半导体衬底上形成绝缘层。 图案化绝缘层以形成露出第一金属互连的开口。 在暴露的第一金属互连上形成第一扩散阻挡层。 在形成第一扩散阻挡层之后,在开口中的第一扩散阻挡层上形成第二扩散阻挡层,第二扩散阻挡层与开口的侧壁接触。 第二金属互连形成在第二扩散阻挡层上。

    Method of forming a contact in a semiconductor device
    65.
    发明授权
    Method of forming a contact in a semiconductor device 失效
    在半导体器件中形成接触的方法

    公开(公告)号:US06905960B2

    公开(公告)日:2005-06-14

    申请号:US10657140

    申请日:2003-09-09

    摘要: In a method of forming a contact in a semiconductor device, an insulating layer is formed on the semiconductor substrate. Then, a contact hole is formed by selectively etching the insulating layer. A barrier metal layer is deposited on side and bottom surfaces of the contact hole and on a top surface of the insulating layer to a uniform thickness. A wetting layer of an oxidation-resistive metal material is deposited on the barrier metal layer. A metal layer is formed on the wetting layer and fills the contact hole to thereby form a contact in the semiconductor device.

    摘要翻译: 在半导体器件中形成接触的方法中,在半导体衬底上形成绝缘层。 然后,通过选择性地蚀刻绝缘层形成接触孔。 阻挡金属层沉积在接触孔的侧表面和底表面上,并且在绝缘层的顶表面上沉积到均匀的厚度。 在阻挡金属层上沉积抗氧化金属材料的润湿层。 在润湿层上形成金属层,并填充接触孔,从而在半导体器件中形成接触。

    Methods of forming metal interconnection structures
    67.
    发明授权
    Methods of forming metal interconnection structures 有权
    形成金属互连结构的方法

    公开(公告)号:US08124524B2

    公开(公告)日:2012-02-28

    申请号:US12711812

    申请日:2010-02-24

    IPC分类号: H01L21/4763

    摘要: Methods of forming a metal interconnection structure are provided. The methods include forming an insulating layer on a semiconductor substrate including a first metal interconnection. The insulating layer is patterned to form an opening that exposes the first metal interconnection. A first diffusion barrier layer is formed on the exposed first metal interconnection. After forming the first diffusion barrier layer, a second diffusion barrier layer is formed on the first diffusion barrier layer in the opening, the second diffusion barrier layer contacting a sidewall of the opening. A second metal interconnection is formed on the second diffusion barrier layer.

    摘要翻译: 提供形成金属互连结构的方法。 所述方法包括在包括第一金属互连的半导体衬底上形成绝缘层。 图案化绝缘层以形成露出第一金属互连的开口。 在暴露的第一金属互连上形成第一扩散阻挡层。 在形成第一扩散阻挡层之后,在开口中的第一扩散阻挡层上形成第二扩散阻挡层,第二扩散阻挡层与开口的侧壁接触。 第二金属互连形成在第二扩散阻挡层上。