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    • 5. 发明授权
    • Methods of forming nickel silicide layers with low carbon content
    • 形成低碳含量的硅化镍层的方法
    • US07704858B2
    • 2010-04-27
    • US11731275
    • 2007-03-29
    • Michael L. McSwineyMatthew V. Metz
    • Michael L. McSwineyMatthew V. Metz
    • H01L21/322H01L21/44
    • C23C16/45534C23C16/18C23C16/45542H01L29/665H01L29/78
    • A method for forming a nickel silicide layer on a MOS device with a low carbon content comprises providing a substrate within an ALD reactor and performing an ALD process cycle to form a nickel layer on the substrate, wherein the ALD process cycle comprises pulsing a nickel precursor into the reactor, purging the reactor after the nickel precursor, pulsing a mixture of hydrogen and silane into the reactor, and purging the reactor after the hydrogen and silane pulse. The ALD process cycle can be repeated until the nickel layer reaches a desired thickness. The silane used in the ALD process functions as a getterer for the advantageous carbon, resulting in a nickel layer that has a low carbon content. The nickel layer may then be annealed to form a nickel silicide layer with a low carbon content.
    • 在具有低碳含量的MOS器件上形成硅化镍层的方法包括在ALD反应器内提供衬底并执行ALD工艺循环以在衬底上形成镍层,其中ALD工艺循环包括将镍前体 进入反应器,在镍前体之后吹扫反应器,将氢和硅烷的混合物脉冲进入反应器,并在氢和硅烷脉冲之后清洗反应器。 可以重复ALD工艺循环,直到镍层达到所需的厚度。 用于ALD工艺中的硅烷作为有利碳的吸收剂起作用,产生具有低碳含量的镍层。 然后镍层可以退火以形成具有低碳含量的硅化镍层。
    • 9. 发明申请
    • Methods of forming nickel silicide layers with low carbon content
    • 形成低碳含量的硅化镍层的方法
    • US20080242059A1
    • 2008-10-02
    • US11731275
    • 2007-03-29
    • Michael L. McSwineyMatthew V. Metz
    • Michael L. McSwineyMatthew V. Metz
    • H01L21/322C23C16/06
    • C23C16/45534C23C16/18C23C16/45542H01L29/665H01L29/78
    • A method for forming a nickel silicide layer on a MOS device with a low carbon content comprises providing a substrate within an ALD reactor and performing an ALD process cycle to form a nickel layer on the substrate, wherein the ALD process cycle comprises pulsing a nickel precursor into the reactor, purging the reactor after the nickel precursor, pulsing a mixture of hydrogen and silane into the reactor, and purging the reactor after the hydrogen and silane pulse. The ALD process cycle can be repeated until the nickel layer reaches a desired thickness. The silane used in the ALD process functions as a getterer for the advantageous carbon, resulting in a nickel layer that has a low carbon content. The nickel layer may then be annealed to form a nickel silicide layer with a low carbon content.
    • 在具有低碳含量的MOS器件上形成硅化镍层的方法包括在ALD反应器内提供衬底并执行ALD工艺循环以在衬底上形成镍层,其中ALD工艺循环包括将镍前体 进入反应器,在镍前体之后吹扫反应器,将氢和硅烷的混合物脉冲进入反应器,并在氢和硅烷脉冲之后清洗反应器。 可以重复ALD工艺循环,直到镍层达到所需的厚度。 用于ALD工艺中的硅烷作为有利碳的吸收剂起作用,产生具有低碳含量的镍层。 然后镍层可以退火以形成具有低碳含量的硅化镍层。