Multilayer sidewall spacer for seam protection of a patterned structure
    1.
    发明授权
    Multilayer sidewall spacer for seam protection of a patterned structure 有权
    用于图案结构的接缝保护的多层侧壁间隔件

    公开(公告)号:US08673725B2

    公开(公告)日:2014-03-18

    申请号:US12751926

    申请日:2010-03-31

    IPC分类号: H01L29/78

    CPC分类号: H01L21/28247 H01L29/6656

    摘要: A semiconducting device with a multilayer sidewall spacer and method of forming are described. In one embodiment, the method includes providing a substrate containing a patterned structure on a surface of the substrate and depositing a first spacer layer over the patterned structure at a first substrate temperature, where the first spacer layer contains a first material. The method further includes depositing a second spacer layer over the patterned substrate at a second substrate temperature that is different from the first substrate temperature, where the first and second materials contain the same chemical elements, and the depositing steps are performed in any order. The first and second spacer layers are then etched to form the multilayer sidewall spacer on the patterned structure.

    摘要翻译: 描述了具有多层侧壁间隔件和形成方法的半导体器件。 在一个实施例中,该方法包括在衬底的表面上提供含有图案化结构的衬底,并且在第一衬底温度下在第一衬底温度下沉积在图案化结构上的第一间隔层,其中第一间隔层包含第一材料。 该方法还包括在不同于第一衬底温度的第二衬底温度下在图案化衬底上沉积第二间隔层,其中第一和第二材料含有相同的化学元素,并且沉积步骤以任何顺序进行。 然后蚀刻第一和第二间隔层以在图案化结构上形成多层侧壁间隔物。

    Dual sidewall spacer for seam protection of a patterned structure
    2.
    发明授权
    Dual sidewall spacer for seam protection of a patterned structure 有权
    用于图案化结构的接缝保护的双侧壁间隔件

    公开(公告)号:US08664102B2

    公开(公告)日:2014-03-04

    申请号:US12751891

    申请日:2010-03-31

    IPC分类号: H01L21/3205 H01L21/4763

    摘要: A semiconducting device with a dual sidewall spacer and method of forming are provided. The method includes: depositing a first spacer layer over a patterned structure, the first spacer layer having a seam propagating through a thickness of the first spacer layer near an interface region of a surface of the substrate and a sidewall of the patterned structure, etching the first spacer layer to form a residual spacer at the interface region, where the residual spacer coats less than the entirety of the sidewall of the patterned structure, depositing a second spacer layer on the residual spacer and on the sidewall of the patterned structure not coated by the residual spacer, the second spacer layer being seam-free on the seam of the residual spacer, and etching the second spacer layer to form a second spacer coating the residual spacer and coating the sidewall of the patterned structure not coated by the residual spacer.

    摘要翻译: 提供了具有双侧壁间隔件和成形方法的半导体器件。 该方法包括:在图案化结构上沉积第一间隔层,第一间隔层具有在衬底的表面的界面区附近传播穿过第一间隔层的厚度的接缝和图案化结构的侧壁,蚀刻 第一间隔层,以在界面区域处形成残留间隔物,其中残余间隔物涂覆小于图案化结构的侧壁的整体,在剩余间隔物上和在图案化结构的侧壁上沉积第二间隔层, 所述剩余间隔物,所述第二间隔层在所述残余间隔物的接缝上是无缝的,并且蚀刻所述第二间隔层以形成涂覆所述剩余间隔物并涂覆未被所述残留间隔物涂覆的所述图案化结构的侧壁的第二间隔物。

    HDP-based ILD capping layer
    3.
    发明授权
    HDP-based ILD capping layer 有权
    基于HDP的ILD覆盖层

    公开(公告)号:US07372158B2

    公开(公告)日:2008-05-13

    申请号:US11467593

    申请日:2006-08-28

    IPC分类号: H01L29/40

    摘要: A cap nitride stack which prevents etch penetration to the HDP nitride while maintaining the electromigration benefits of HDP nitride atop Cu. In one embodiment, the stack comprises a first layer of HDP nitride and a second layer of a Si—C—H compound disposed over the first layer. The Si—C—H compound is for example BLoK, or N-BLoK (Si—C—H—N), and is selected from a group of materials that has high selectivity during via RIE such that RIE chemistry from the next wiring level does not punch through. Carbon and nitrogen are the key elements. In another embodiment, the stack comprises a first layer of HDP nitride, followed by a second layer of UVN (a plasma nitride), and a third layer comprising HDP nitride disposed over the second layer.

    摘要翻译: 一种覆盖氮化物叠层,可以防止蚀刻渗透到HDP氮化物,同时保持在Cu顶部的HDP氮化物的电迁移效果。 在一个实施例中,堆叠包括第一层HDP氮化物和设置在第一层上的Si-C-H化合物的第二层。 Si-C-H化合物例如是BLoK或N-BLoK(Si-C-H-N),并且选自在通孔RIE期间具有高选择性的一组材料,使得来自下一个布线层的RIE化学不会穿透。 碳氮是关键要素。 在另一个实施例中,堆叠包括第一层HDP氮化物,随后是第二层UVN(等离子体氮化物),以及包含设置在第二层上的HDP氮化物的第三层。