Air gap formation in interconnection structure by implantation process
    26.
    发明授权
    Air gap formation in interconnection structure by implantation process 有权
    通过植入工艺在互连结构中形成气隙

    公开(公告)号:US09595467B2

    公开(公告)日:2017-03-14

    申请号:US14597149

    申请日:2015-01-14

    Abstract: Methods for forming air gaps in an interconnection structure with desired materials formed on different locations of the interconnection structure using an ion implantation process to define an etching boundary followed by an etching process for semiconductor devices are provided. In one embodiment, a method for forming air gaps in an interconnection structure on a substrate, the method includes implanting ions in a first region of an insulating material disposed on a substrate, leaving a second region without implanted ions, the second region having a first surface interfaced with the first region and a second surface interfaced with the substrate, and performing an etching process to selectively etch the second region away from the substrate, forming an air gap between the first region and the substrate.

    Abstract translation: 提供了使用离子注入工艺形成在互连结构的不同位置上形成的所需材料的互连结构中的空气间隙以限定蚀刻边界,然后进行半导体器件的蚀刻工艺的方法。 在一个实施例中,一种用于在衬底上形成互连结构中的气隙的方法,所述方法包括将离子注入设置在衬底上的绝缘材料的第一区域中,留下没有注入离子的第二区域,第二区域具有第一 与第一区域接合的表面和与衬底接合的第二表面,以及执行蚀刻工艺以选择性地蚀刻第二区域远离衬底,在第一区域和衬底之间形成气隙。

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