ENHANCING DEPOSITION UNIFORMITY OF A CHANNEL SEMICONDUCTOR ALLOY BY AN IN SITU ETCH PROCESS
    2.
    发明申请
    ENHANCING DEPOSITION UNIFORMITY OF A CHANNEL SEMICONDUCTOR ALLOY BY AN IN SITU ETCH PROCESS 有权
    通过现场蚀刻过程增强通道半导体合金的沉积均匀性

    公开(公告)号:US20100289094A1

    公开(公告)日:2010-11-18

    申请号:US12775863

    申请日:2010-05-07

    IPC分类号: H01L27/088 H01L21/8236

    摘要: When forming sophisticated gate electrode structures requiring a threshold adjusting semiconductor alloy for one type of transistor, a recess is formed in the corresponding active region, thereby providing superior process uniformity during the deposition of the semiconductor material. Due to the recess, any exposed sidewall surface areas of the active region may be avoided during the selective epitaxial growth process, thereby significantly contributing to enhanced threshold stability of the resulting transistor including the high-k metal gate stack.

    摘要翻译: 当形成需要用于一种类型的晶体管的阈值调节半导体合金的复杂的栅电极结构时,在相应的有源区中形成凹部,从而在半导体材料的沉积期间提供优异的工艺均匀性。 由于凹槽,可以在选择性外延生长工艺期间避免有源区的任何暴露的侧壁表面区域,从而显着地有助于提高包括高k金属栅叠层的晶体管的阈值稳定性。

    ADJUSTING OF STRAIN CAUSED IN A TRANSISTOR CHANNEL BY SEMICONDUCTOR MATERIAL PROVIDED FOR THRESHOLD ADJUSTMENT
    9.
    发明申请
    ADJUSTING OF STRAIN CAUSED IN A TRANSISTOR CHANNEL BY SEMICONDUCTOR MATERIAL PROVIDED FOR THRESHOLD ADJUSTMENT 有权
    通过用于阈值调整的半导体材料调节晶体管通道中的应变

    公开(公告)号:US20100164016A1

    公开(公告)日:2010-07-01

    申请号:US12648744

    申请日:2009-12-29

    IPC分类号: H01L29/78 H01L21/336

    摘要: The threshold voltage of a sophisticated transistor may be adjusted by providing a specifically designed semiconductor alloy in the channel region of the transistor, wherein a negative effect of this semiconductor material with respect to inducing a strain component in the channel region may be reduced or over-compensated for by additionally incorporating a strain-adjusting species. For example, a carbon species may be incorporated in the channel region, the threshold voltage of which may be adjusted on the basis of a silicon/germanium alloy of a P-channel transistor. Consequently, sophisticated metal gate electrodes may be formed in an early manufacturing stage.

    摘要翻译: 可以通过在晶体管的沟道区域中提供特别设计的半导体合金来调整复杂晶体管的阈值电压,其中该半导体材料相对于在沟道区域中诱导应变分量的负面影响可以被减小或过量, 通过另外结合应变调节物种来补偿。 例如,可以在沟道区域中引入碳物质,其阈值电压可以基于P沟道晶体管的硅/锗合金来调节。 因此,可以在早期制造阶段形成复杂的金属栅电极。

    Adjusting of strain caused in a transistor channel by semiconductor material provided for threshold adjustment
    10.
    发明授权
    Adjusting of strain caused in a transistor channel by semiconductor material provided for threshold adjustment 有权
    通过提供阈值调整的半导体材料来调整晶体管通道中引起的应变

    公开(公告)号:US08518784B2

    公开(公告)日:2013-08-27

    申请号:US12648744

    申请日:2009-12-29

    IPC分类号: H01L21/336

    摘要: The threshold voltage of a sophisticated transistor may be adjusted by providing a specifically designed semiconductor alloy in the channel region of the transistor, wherein a negative effect of this semiconductor material with respect to inducing a strain component in the channel region may be reduced or over-compensated for by additionally incorporating a strain-adjusting species. For example, a carbon species may be incorporated in the channel region, the threshold voltage of which may be adjusted on the basis of a silicon/germanium alloy of a P-channel transistor. Consequently, sophisticated metal gate electrodes may be formed in an early manufacturing stage.

    摘要翻译: 可以通过在晶体管的沟道区域中提供特别设计的半导体合金来调整复杂晶体管的阈值电压,其中该半导体材料相对于在沟道区域中诱导应变分量的负面影响可以被减小或过量, 通过另外结合应变调节物种来补偿。 例如,可以在沟道区域中引入碳物质,其阈值电压可以基于P沟道晶体管的硅/锗合金来调节。 因此,可以在早期制造阶段形成复杂的金属栅电极。