SEMICONDUCTOR DEVICES AND FABRICATION METHODS THEREOF
    1.
    发明申请
    SEMICONDUCTOR DEVICES AND FABRICATION METHODS THEREOF 审中-公开
    半导体器件及其制造方法

    公开(公告)号:US20090065893A1

    公开(公告)日:2009-03-12

    申请号:US11876489

    申请日:2007-10-22

    IPC分类号: H01L29/00 H01L21/20

    摘要: A semiconductor device and fabrication method thereof is disclosed. The method includes the steps of providing a substrate with a trench and a stacked layer thereon, performing an epitaxy process to form an epitaxial layer in the trench, conformably depositing an oxide layer on the epitaxial layer, and removing a portion of the oxide layer and the epitaxial layer on the bottom of the trench.

    摘要翻译: 公开了一种半导体器件及其制造方法。 该方法包括以下步骤:在其上提供具有沟槽和堆叠层的衬底,执行外延工艺以在沟槽中形成外延层,在外延层上顺应地沉积氧化物层,以及去除一部分氧化物层和 沟槽底部的外延层。