Shallow trench isolation structure
    22.
    发明授权
    Shallow trench isolation structure 有权
    浅沟隔离结构

    公开(公告)号:US09318371B2

    公开(公告)日:2016-04-19

    申请号:US14189155

    申请日:2014-02-25

    Abstract: A semiconductor device includes a semiconductor substrate, an active region and a trench isolation. The active region is formed in the semiconductor substrate. The trench isolation is disposed adjacent to the active region. The trench isolation includes a lower portion and an upper portion. The upper portion is located on the lower portion. The upper portion has a width gradually decreased from a junction between the upper portion and the lower portion toward a top of the trench isolation. In a method for fabricating the semiconductor device, at first, the semiconductor substrate is etched to form a trench in the semiconductor substrate. Then, an insulator fills the trench to form the trench isolation. Thereafter, the gate structure is formed on the semiconductor substrate. Then, the semiconductor substrate is etched to form a recess adjacent to the trench isolation. Thereafter, at least one doped epitaxial layer grows in the recess.

    Abstract translation: 半导体器件包括半导体衬底,有源区和沟槽隔离。 在半导体衬底中形成有源区。 沟槽隔离设置在有源区附近。 沟槽隔离包括下部和上部。 上部位于下部。 上部具有从上部和下部之间的接合部朝向沟槽隔离的顶部逐渐减小的宽度。 在制造半导体器件的方法中,首先蚀刻半导体衬底以在半导体衬底中形成沟槽。 然后,绝缘体填充沟槽以形成沟槽隔离。 此后,在半导体衬底上形成栅极结构。 然后,蚀刻半导体衬底以形成与沟槽隔离相邻的凹部。 此后,至少一个掺杂的外延层在凹槽中生长。

    Photomask and method for forming dual STI structure by using the same
    23.
    发明授权
    Photomask and method for forming dual STI structure by using the same 有权
    用于形成双STI结构的光掩模和方法

    公开(公告)号:US09318368B2

    公开(公告)日:2016-04-19

    申请号:US14080631

    申请日:2013-11-14

    CPC classification number: H01L21/76229 G03F1/00 H01L21/0274 H01L21/3083

    Abstract: In a method for manufacturing a dual shallow trench isolation structure, a substrate is provided, and a mask layer is formed on the substrate. The mask layer is patterned by using a photomask to form at least one first hole and at least one second hole in the mask layer, in which a depth of the at least one first hole is different from a depth of the at least one second hole. The mask layer and the substrate are etched to form at least one first trench having a first depth and at least one second trench having a second depth, in which the first depth is different from the second depth. The remaining mask layer is removed. A first isolation layer and A second isolation layer are respectively formed in the at least one first trench and the at least one second trench.

    Abstract translation: 在制造双浅沟槽隔离结构的方法中,提供衬底,并且在衬底上形成掩模层。 通过使用光掩模来对掩模层进行构图,以在掩模层中形成至少一个第一孔和至少一个第二孔,其中至少一个第一孔的深度不同于至少一个第二孔的深度 。 蚀刻掩模层和衬底以形成具有第一深度的至少一个第一沟槽和具有第二深度的至少一个第二沟槽,其中第一深度不同于第二深度。 剩下的掩模层被去除。 第一隔离层和第二隔离层分别形成在至少一个第一沟槽和至少一个第二沟槽中。

    SEMICONDUCTOR DEVICE AND FABRICATING METHOD THEREOF
    24.
    发明申请
    SEMICONDUCTOR DEVICE AND FABRICATING METHOD THEREOF 有权
    半导体器件及其制造方法

    公开(公告)号:US20150200299A1

    公开(公告)日:2015-07-16

    申请号:US14224961

    申请日:2014-03-25

    Abstract: A semiconductor device and a method of fabricating the semiconductor device are provided. The semiconductor device includes a substrate; a source/drain region having a first dopant in the substrate; a barrier layer having a second dopant formed around the source/drain region in the substrate. When a semiconductor device is scaled down, the doped profile in source/drain regions might affect the threshold voltage uniformity, the provided semiconductor device may improve the threshold voltage uniformity by the barrier layer to control the doped profile.

    Abstract translation: 提供半导体器件和制造半导体器件的方法。 半导体器件包括衬底; 在衬底中具有第一掺杂剂的源/漏区; 阻挡层,其具有形成在衬底中的源极/漏极区周围的第二掺杂物。 当半导体器件按比例缩小时,源极/漏极区域中的掺杂分布可能影响阈值电压均匀性,所提供的半导体器件可以通过阻挡层来改善阈值电压均匀性以控制掺杂分布。

Patent Agency Ranking