SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME
    1.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME 有权
    半导体器件及其制造方法

    公开(公告)号:US20120292721A1

    公开(公告)日:2012-11-22

    申请号:US13109599

    申请日:2011-05-17

    IPC分类号: H01L29/78 H01L21/285

    摘要: A method of fabricating a semiconductor device includes following steps. A substrate is provided, wherein a first dielectric layer having a trench therein is formed on the substrate, a source/drain region is formed in the substrate at two sides of the trench, and a second dielectric layer is formed on the substrate in the trench. A first physical vapor deposition process is performed to form a Ti-containing metal layer in the trench. A second physical vapor deposition process is performed to form an Al layer on the Ti-containing metal layer in the trench. A thermal process is performed to anneal the Ti-containing metal layer and the Al layer so as to form a work function metal layer. A metal layer is formed to fill the trench.

    摘要翻译: 制造半导体器件的方法包括以下步骤。 提供了一种衬底,其中在衬底上形成有沟槽的第一电介质层,在沟槽的两侧在衬底中形成源极/漏极区,并且在沟槽中的衬底上形成第二电介质层 。 进行第一物理气相沉积工艺以在沟槽中形成含Ti金属层。 进行第二物理气相沉积工艺以在沟槽中的含Ti金属层上形成Al层。 进行热处理以使含Ti金属层和Al层退火以形成功函数金属层。 形成金属层以填充沟槽。

    Metal oxide semiconductor transistor and method of manufacturing the same
    3.
    发明授权
    Metal oxide semiconductor transistor and method of manufacturing the same 有权
    金属氧化物半导体晶体管及其制造方法

    公开(公告)号:US08580625B2

    公开(公告)日:2013-11-12

    申请号:US13188536

    申请日:2011-07-22

    IPC分类号: H01L21/00 H01L21/84

    摘要: A method for manufacturing a MOS transistor is provided. A substrate has a high-k dielectric layer and a barrier in each of a first opening and a second opening formed by removing a dummy gate and located in a first transistor region and a second transistor region. A dielectric barrier layer is formed on the substrate and filled into the first opening and the second opening to cover the barrier layers. A portion of the dielectric barrier in the first transistor region is removed. A first work function metal layer is formed. The first work function metal layer and a portion of the dielectric barrier layer in the second transistor region are removed. A second work function metal layer is formed. The method can avoid a loss of the high-k dielectric layer to maintain the reliability of a gate structure, thereby improving the performance of the MOS transistor.

    摘要翻译: 提供一种制造MOS晶体管的方法。 基板在通过去除伪栅极并位于第一晶体管区域和第二晶体管区域中形成的第一开口和第二开口中的每一个中具有高k电介质层和势垒。 介电阻挡层形成在衬底上并填充到第一开口和第二开口中以覆盖阻挡层。 去除第一晶体管区域中的介电阻挡层的一部分。 形成第一功函数金属层。 去除第一功函数金属层和第二晶体管区域中的介电阻挡层的一部分。 形成第二功函数金属层。 该方法可以避免高k电介质层的损失,以保持栅极结构的可靠性,从而提高MOS晶体管的性能。

    Semiconductor device and method of fabricating the same
    7.
    发明授权
    Semiconductor device and method of fabricating the same 有权
    半导体装置及其制造方法

    公开(公告)号:US08841733B2

    公开(公告)日:2014-09-23

    申请号:US13109599

    申请日:2011-05-17

    摘要: A method of fabricating a semiconductor device includes following steps. A substrate is provided, wherein a first dielectric layer having a trench therein is formed on the substrate, a source/drain region is formed in the substrate at two sides of the trench, and a second dielectric layer is formed on the substrate in the trench. A first physical vapor deposition process is performed to form a Ti-containing metal layer in the trench. A second physical vapor deposition process is performed to form an Al layer on the Ti-containing metal layer in the trench. A thermal process is performed to anneal the Ti-containing metal layer and the Al layer so as to form a work function metal layer. A metal layer is formed to fill the trench.

    摘要翻译: 制造半导体器件的方法包括以下步骤。 提供了一种衬底,其中在衬底上形成有沟槽的第一电介质层,在沟槽的两侧在衬底中形成源极/漏极区,并且在沟槽中的衬底上形成第二电介质层 。 进行第一物理气相沉积工艺以在沟槽中形成含Ti金属层。 进行第二物理气相沉积工艺以在沟槽中的含Ti金属层上形成Al层。 进行热处理以使含Ti金属层和Al层退火以形成功函数金属层。 形成金属层以填充沟槽。