Semiconductor device and method of fabricating the same
    1.
    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。

    SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME
    2.
    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 Gate Structure and Fabricating Method thereof
    10.
    发明申请
    Metal Gate Structure and Fabricating Method thereof 审中-公开
    金属门结构及其制造方法

    公开(公告)号:US20110254060A1

    公开(公告)日:2011-10-20

    申请号:US12760782

    申请日:2010-04-15

    IPC分类号: H01L29/772 H01L21/28

    摘要: A method of fabricating a metal gate structure is provided. Firstly, a high-K gate dielectric layer is formed on a semiconductor substrate. Then, a first metal-containing layer having a surface away from the gate dielectric layer is formed on the gate dielectric layer. After that, the surface of the first metal-containing layer is treated to improve the nitrogen content thereof of the surface. Subsequently, a silicon layer is formed on the first metal-containing layer. Because the silicon layer is formed on the surface having high nitrogen content, the catalyzing effect to the silicon layer resulted from the metal material in the first metal-containing layer can be prevented. As a result, the process yield is improved.

    摘要翻译: 提供一种制造金属栅极结构的方法。 首先,在半导体衬底上形成高K栅介质层。 然后,在栅极电介质层上形成具有离开栅极电介质层的表面的第一含金属层。 之后,处理第一含金属层的表面以改善其表面的氮含量。 随后,在第一含金属层上形成硅层。 由于在具有高氮含量的表面上形成硅层,所以可以防止由第一含金属层中的金属材料产生的对硅层的催化作用。 结果,工艺产量提高。