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    Method of manufacturing semiconductor device comprising silicon-rich tasin metal gate electrode
    169.
    发明授权
    Method of manufacturing semiconductor device comprising silicon-rich tasin metal gate electrode 有权
    一种制造半导体器件的方法，所述半导体器件包括富含硅的金属栅电极

    公开(公告)号：US06861350B1

    公开(公告)日：2005-03-01

    申请号：US10464508

    申请日：2003-06-19

    Applicant: Minh Van Ngo ,  Christy Mei-Chu Woo ,  Jinsong Yin ,  James Pan ,  Paul R. Besser

    Inventor： Minh Van Ngo ,  Christy Mei-Chu Woo ,  Jinsong Yin ,  James Pan ,  Paul R. Besser

    IPC: H01L21/28 ,  H01L21/336 ,  H01L29/49 ,  H10L21/4763 ,  H10L21/44

    CPC classification number: H01L29/66606 ,  H01L21/28088 ,  H01L29/4966 ,  H01L29/66545

    Abstract: Micro-miniaturized semiconductor devices are fabricated with silicon-rich tantalum silicon nitride replacement metal gate electrodes. Embodiments include removing a removable gate, depositing a layer of tantalum nitride, as by PVD at a thickness of 25 Å to 75 Å, and then introducing silicon into the deposited tantalum nitride layer by thermal soaking in silane or silane plasma treatment to form a layer of silicon-rich tantalum silicon nitride. In another embodiment, the intermediate structure is subjected to thermal soaking in silane or silane plasma treatment before and after depositing the tantalum nitride layer. Embodiments further include pretreating the intermediate structure with silane prior to depositing the tantalum nitride layer, treating the deposited tantalum nitride layer with silane, and repeating these steps a number of times to form a plurality of sub-layers of silicon-rich tantalum silicon nitride.

    Abstract translation: 微型半导体器件由富含硅的钽氮化硅替代金属栅电极制成。 实施例包括去除可移除栅极，通过PVD沉积氮化钽层，厚度为25埃，然后通过在硅烷或硅烷等离子体处理中热浸泡形成层，将硅引入沉积的氮化钽层中 的富硅钽硅氮化物。 在另一个实施方案中，在沉积氮化钽层之前和之后，使中间体在硅烷或硅烷等离子体处理中进行热浸。 实施例还包括在沉积氮化钽层之前用硅烷预处理中间结构，用硅烷处理沉积的氮化钽层，并重复这些步骤多次以形成多个富硅钽硅氮化物的子层。

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