HIGH-K METAL GATE ELECTRODE STRUCTURES FORMED BY SEPARATE REMOVAL OF PLACEHOLDER MATERIALS USING A MASKING REGIME PRIOR TO GATE PATTERNING
    50.
    发明申请
    HIGH-K METAL GATE ELECTRODE STRUCTURES FORMED BY SEPARATE REMOVAL OF PLACEHOLDER MATERIALS USING A MASKING REGIME PRIOR TO GATE PATTERNING 有权
    高K金属电极结构通过使用屏蔽方式在放置栅格之前单独移除位置材料而形成

    公开(公告)号:US20110127613A1

    公开(公告)日:2011-06-02

    申请号:US12905440

    申请日:2010-10-15

    IPC分类号: H01L27/092 H01L21/336

    摘要: In a replacement gate approach in sophisticated semiconductor devices, the place-holder material of gate electrode structures of different type are separately removed. Furthermore, electrode metal may be selectively formed in the resulting gate opening, thereby providing superior process conditions in adjusting a respective work function of gate electrode structures of different type. In one illustrative embodiment, the separate forming of gate openings in gate electrode structures of different type may be based on a mask material that is provided in a gate layer stack.

    摘要翻译: 在复杂半导体器件中的替代栅极方法中,分别去除不同类型的栅电极结构的放置保持材料。 此外,可以在所得到的栅极开口中选择性地形成电极金属,从而在调整不同类型的栅电极结构的各自的功函数方面提供优异的工艺条件。 在一个说明性实施例中,在不同类型的栅极电极结构中单独形成栅极开口可以基于设置在栅极层叠层中的掩模材料。