Continuous, non-agglomerated adhesion of a seed layer to a barrier layer
    22.
    发明授权
    Continuous, non-agglomerated adhesion of a seed layer to a barrier layer 有权
    种子层与阻挡层的连续的非团聚粘附

    公开(公告)号:US06627542B1

    公开(公告)日:2003-09-30

    申请号:US09604858

    申请日:2000-06-27

    IPC分类号: H01L2144

    摘要: A method and apparatus is provided for improving adherence of metal seed layers to barrier layers in electrochemical deposition techniques. The method includes depositing an adhesion layer continuously or semi-continuously without agglomeration onto a barrier layer prior to depositing a seed layer by controlling the substrate temperature, the chamber pressure, and/or the power delivered to a deposition chamber. Deposition of the adhesion layer prevents layer delamination which leads to agglomeration of the deposited layers and formation of voids in the high aspect ratio features.

    摘要翻译: 提供了一种用于在电化学沉积技术中改善金属种子层对阻挡层的粘附性的方法和装置。 该方法包括通过控制衬底温度,室压力和/或输送到沉积室的功率沉积种子层之前将粘附层连续地或半连续地沉积在阻挡层上。 粘附层的沉积防止了层析层,导致沉积层的聚集和高纵横比特征形成空隙。

    Metal gate structures and methods for forming thereof
    25.
    发明授权
    Metal gate structures and methods for forming thereof 有权
    金属门结构及其形成方法

    公开(公告)号:US08637390B2

    公开(公告)日:2014-01-28

    申请号:US13116794

    申请日:2011-05-26

    IPC分类号: H01L21/4763

    摘要: Metal gate structures and methods for forming thereof are provided herein. In some embodiments, a method for forming a metal gate structure on a substrate having a feature formed in a high k dielectric layer may include depositing a first layer within the feature atop the dielectric layer; depositing a second layer comprising cobalt or nickel within the feature atop the first layer; and depositing a third layer comprising a metal within the feature atop the second layer to fill the feature, wherein at least one of the first or second layers forms a wetting layer to form a nucleation layer for a subsequently deposited layer, wherein one of the first, second, or third layers forms a work function layer, and wherein the third layer forms a gate electrode.

    摘要翻译: 本文提供了金属门结构及其形成方法。 在一些实施例中,在具有形成在高k电介质层中的特征的衬底上形成金属栅极结构的方法可以包括在电介质层顶部的特征内沉积第一层; 在所述特征内在所述第一层顶部沉积包含钴或镍的第二层; 以及在第二层顶部沉积包括特征内的金属的第三层以填充该特征,其中第一层或第二层中的至少一层形成润湿层以形成后续沉积层的成核层,其中第一层 第二层或第三层形成功函数层,并且其中第三层形成栅电极。

    Methods for forming a contact metal layer in semiconductor devices
    26.
    发明授权
    Methods for forming a contact metal layer in semiconductor devices 失效
    在半导体器件中形成接触金属层的方法

    公开(公告)号:US08586479B2

    公开(公告)日:2013-11-19

    申请号:US13356002

    申请日:2012-01-23

    IPC分类号: H01L21/44

    摘要: Methods for forming a contact metal layer in a contact structure in semiconductor devices are provided in the present invention. In one embodiment, a method for depositing a contact metal layer for forming a contact structure in a semiconductor device includes pulsing a deposition precursor gas mixture to a surface of a substrate disposed in a metal deposition processing chamber, pulsing a purge gas mixture to an edge of the substrate, wherein the purge gas mixture includes at least a hydrogen containing gas and an inert gas, and forming a contact metal layer on the substrate from the first deposition precursor gas mixture.

    摘要翻译: 在本发明中提供了在半导体器件的接触结构中形成接触金属层的方法。 在一个实施例中,用于在半导体器件中沉积用于形成接触结构的接触金属层的方法包括:将沉积前体气体混合物脉动到设置在金属沉积处理室中的衬底的表面,将清洗气体混合物脉冲到边缘 其中所述吹扫气体混合物至少包含含氢气体和惰性气体,并且从所述第一沉积前体气体混合物在所述衬底上形成接触金属层。

    METHODS FOR FORMING A CONTACT METAL LAYER IN SEMICONDUCTOR DEVICES
    28.
    发明申请
    METHODS FOR FORMING A CONTACT METAL LAYER IN SEMICONDUCTOR DEVICES 失效
    在半导体器件中形成接触金属层的方法

    公开(公告)号:US20130189840A1

    公开(公告)日:2013-07-25

    申请号:US13356002

    申请日:2012-01-23

    IPC分类号: H01L21/285

    摘要: Methods for forming a contact metal layer in a contact structure in semiconductor devices are provided in the present invention. In one embodiment, a method for depositing a contact metal layer for forming a contact structure in a semiconductor device includes pulsing a deposition precursor gas mixture to a surface of a substrate disposed in a metal deposition processing chamber, pulsing a purge gas mixture to an edge of the substrate, wherein the purge gas mixture includes at least a hydrogen containing gas and an inert gas, and forming a contact metal layer on the substrate from the first deposition precursor gas mixture.

    摘要翻译: 在本发明中提供了在半导体器件的接触结构中形成接触金属层的方法。 在一个实施例中,用于在半导体器件中沉积用于形成接触结构的接触金属层的方法包括:将沉积前体气体混合物脉动到设置在金属沉积处理室中的衬底的表面,将清洗气体混合物脉冲到边缘 其中所述吹扫气体混合物至少包含含氢气体和惰性气体,并且从所述第一沉积前体气体混合物在所述衬底上形成接触金属层。

    Krypton sputtering of low resistivity tungsten
    29.
    发明授权
    Krypton sputtering of low resistivity tungsten 有权
    低电阻钨氪溅射

    公开(公告)号:US08216933B2

    公开(公告)日:2012-07-10

    申请号:US12872522

    申请日:2010-08-31

    IPC分类号: H01L21/02

    摘要: A method of depositing a bilayer of tungsten over tungsten nitride by a plasma sputtering process in which krypton is used as the sputter working gas during the tungsten deposition. Argon may be used as the sputtering working gas during the reactive sputtering deposition of tungsten nitride. The beneficial effect of reduction of tungsten resistivity is increased when the thickness of the tungsten layer is less than 50 nm and further increased when less than 35 nm. The method may be used in forming a gate stack including a polysilicon layer over a gate oxide layer over a silicon gate region of a MOS transistor in which the tungsten nitride acts as a barrier. A plasma sputter chamber in which the invention may be practiced includes gas sources of krypton, argon, and nitrogen.

    摘要翻译: 通过等离子体溅射工艺在钨沉积中使用氪作为溅射工作气体的钨沉积钨层的方法。 在氮化钨的反应溅射沉积期间,可以使用氩作为溅射工作气体。 当钨层的厚度小于50nm时,降低钨电阻率的有益效果增加,当小于35nm时,钨电阻率的降低进一步增加。 该方法可以用于在MOS晶体管的硅栅极区域上的栅极氧化物层上形成包括多晶硅层的栅极堆叠,其中氮化钨作为势垒。 可以实施本发明的等离子体溅射室包括氪气,氩气和氮气的气源。

    Substrate device having a tuned work function and methods of forming thereof
    30.
    发明授权
    Substrate device having a tuned work function and methods of forming thereof 有权
    具有调谐功能的基板装置及其形成方法

    公开(公告)号:US08129280B2

    公开(公告)日:2012-03-06

    申请号:US12508820

    申请日:2009-07-24

    IPC分类号: H01L21/311

    摘要: Substrate devices having tuned work functions and methods of forming thereof are provided. In some embodiments, forming devices on substrates may include depositing a dielectric layer atop a substrate having a conductivity well; depositing a work function layer comprising titanium aluminum or titanium aluminum nitride having a first nitrogen composition atop the dielectric layer; etching the work function layer to selectively remove at least a portion of the work function layer from atop the dielectric layer; depositing a layer comprising titanium aluminum or titanium aluminum nitride having a second nitrogen composition atop the work function layer and the substrate, wherein at least one of the work function layer or the layer comprises nitrogen; etching the layer and the dielectric layer to selectively remove a portion of the layer and the dielectric layer from atop the substrate; and annealing the substrate at a temperature less than about 1500 degrees Celsius.

    摘要翻译: 提供具有调谐功能的衬底器件及其形成方法。 在一些实施例中,在衬底上形成器件可以包括在具有导电性的衬底顶上淀积介电层; 在所述电介质层的顶部沉积包含具有第一氮组成的钛铝或氮化铝钛的功函数层; 蚀刻功函数层以从电介质层顶部选择性地去除功函数层的至少一部分; 在所述功函数层和所述衬底的顶部上沉积包含具有第二氮组成的钛铝或氮化铝钛的层,其中所述功函数层或所述层中的至少一个包含氮; 蚀刻所述层和所述介电层以从所述衬底顶部选择性地去除所述层和所述电介质层的一部分; 并在低于约1500摄氏度的温度下退火衬底。