Doped protection layer for contact formation
    4.
    发明授权
    Doped protection layer for contact formation 有权
    用于接触形成的掺杂保护层

    公开(公告)号:US09136340B2

    公开(公告)日:2015-09-15

    申请号:US13910610

    申请日:2013-06-05

    Abstract: Embodiments of mechanisms for forming a semiconductor device are provided. The semiconductor device includes a semiconductor substrate having a first doped region and a second doped region, and a gate stack formed on the semiconductor substrate. The semiconductor device also includes a main spacer layer formed on a sidewall of the gate stack. The semiconductor device further includes a protection layer formed between the main spacer layer and the semiconductor substrate, and the protection layer is doped with a quadrivalent element. In addition, the semiconductor device includes an insulating layer formed on the semiconductor substrate and the gate stack, and a contact formed in the insulating layer. The contact has a first portion contacting the first doped region and has a second portion contacting the second doped region. The first region extends deeper into the semiconductor substrate than the second portion.

    Abstract translation: 提供了用于形成半导体器件的机构的实施例。 半导体器件包括具有第一掺杂区和第二掺杂区的半导体衬底和形成在半导体衬底上的栅叠层。 半导体器件还包括形成在栅叠层的侧壁上的主间隔层。 半导体器件还包括形成在主间隔层和半导体衬底之间的保护层,并且保护层掺杂有四价元素。 此外,半导体器件包括形成在半导体衬底和栅极堆叠上的绝缘层和形成在绝缘层中的接触。 接触件具有接触第一掺杂区域的第一部分,并且具有接触第二掺杂区域的第二部分。 第一区域比第二部分更深地延伸到半导体衬底中。

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