Semiconductor device and manufacturing method thereof

    公开(公告)号:US10573649B2

    公开(公告)日:2020-02-25

    申请号:US15045258

    申请日:2016-02-17

    Abstract: A semiconductor device includes a substrate, a first well formed in the substrate, a second well formed in the substrate, a first fin formed on the first well, and a second fin formed on the second well. The first well includes a first conductivity type, the second well includes a second conductivity type, and the first conductivity type and the second conductivity type are complementary to each other. The substrate includes a first semiconductor material. The first fin and the second fin include the first semiconductor material and a second semiconductor material. A lattice constant of the second semiconductor material is larger than a lattice constant of the first semiconductor material. The first semiconductor material in the first fin includes a first concentration, the first semiconductor material in the second fin includes a second concentration, and the second concentration is larger than the first concentration.

    METHOD OF ADJUSTING CHANNEL WIDTHS OF SEMICONDUCTIVE DEVICES
    15.
    发明申请
    METHOD OF ADJUSTING CHANNEL WIDTHS OF SEMICONDUCTIVE DEVICES 有权
    调整半导体器件通道宽度的方法

    公开(公告)号:US20170025286A1

    公开(公告)日:2017-01-26

    申请号:US14809270

    申请日:2015-07-26

    Abstract: A method of adjusting channel widths of semiconductive devices includes providing a substrate divided into a first region and a second region, wherein the substrate comprises numerous fins. A first implantation process is performed on the fins within the first region. Then, a second implantation process is performed on the fins within the second region, wherein the first implantation process and the second implantation process are different from each other in at least one of the conditions comprising dopant species, dopant dosage or implantation energy. After that, part of the fins within the first region and the second region are removed simultaneously to form a plurality of first recesses within the first region and a plurality of second recesses within the second region. Finally, a first epitaxial layer and a second epitaxial layer are formed to fill up each first recess and each second recess, respectively.

    Abstract translation: 调整半导体器件的沟道宽度的方法包括提供分成第一区域和第二区域的衬底,其中衬底包括多个鳍片。 在第一区域内的翅片上执行第一注入工艺。 然后,对第二区域内的翅片执行第二注入工艺,其中第一注入工艺和第二注入工艺在包括掺杂剂种类,掺杂剂剂量或注入能量的至少一个条件中彼此不同。 之后,同时去除第一区域和第二区域内的部分散热片,以在第一区域内形成多个第一凹槽,在第二区域内形成多个第二凹槽。 最后,形成第一外延层和第二外延层以分别填充每个第一凹槽和每个第二凹槽。

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