PE-ALD of TaN diffusion barrier region on low-k materials
    3.
    发明授权
    PE-ALD of TaN diffusion barrier region on low-k materials 有权
    低k材料的TaN扩散阻挡区的PE-ALD

    公开(公告)号:US07211507B2

    公开(公告)日:2007-05-01

    申请号:US10709865

    申请日:2004-06-02

    IPC分类号: H01L21/285

    摘要: Methods of depositing a tantalum-nitride (TaN) diffusion barrier region on low-k materials. The methods include forming a protective layer on the low-k material substrate by performing plasma-enhanced atomic layer deposition (PE-ALD) from tantalum-based precursor and a nitrogen plasma in a chamber. The protective layer has a nitrogen content greater than its tantalum content. A substantially stoichiometric tantalum-nitride layer is then formed by performing PE-ALD from the tantalum-based precursor and a plasma including hydrogen and nitrogen. The invention also includes the tantalum-nitride diffusion barrier region so formed. In one embodiment, the metal precursor includes tantalum penta-chloride (TaCl5). The invention generates a sharp interface between low-k materials and liner materials.

    摘要翻译: 在低k材料上沉积氮化钽(TaN)扩散阻挡区域的方法。 所述方法包括通过从钽基前体和室中的氮等离子体进行等离子体增强原子层沉积(PE-ALD)在低k材料衬底上形成保护层。 保护层的氮含量大于其钽含量。 然后通过从钽基前体和包括氢和氮的等离子体中进行PE-ALD形成基本上化学计量的氮化钽层。 本发明还包括如此形成的氮化钽 - 氮化物扩散阻挡区域。 在一个实施方案中,金属前体包括五氯化钽(TaCl 5 N 5)。 本发明在低k材料和衬垫材料之间产生尖锐的界面。

    Plasma enhanced ALD of tantalum nitride and bilayer
    4.
    发明授权
    Plasma enhanced ALD of tantalum nitride and bilayer 有权
    氮化钽和双层的等离子体增强ALD

    公开(公告)号:US07186446B2

    公开(公告)日:2007-03-06

    申请号:US10699226

    申请日:2003-10-31

    IPC分类号: H05H1/24

    摘要: A method to deposit TaN by plasma enhanced layer with various nitrogen content. Using a mixture of hydrogen and nitrogen plasma, the nitrogen content in the film can be controlled from 0 to N/Ta=1.7. By turning off the nitrogen flow during deposition of TaN, a TaN/Ta bilayer is easily grown, which has copper diffusion barrier properties superior to those of a single Ta layer or a single TaN layer.

    摘要翻译: 一种用各种氮含量的等离子体增强层沉积TaN的方法。 使用氢和氮等离子体的混合物,膜中的氮含量可以从0到N / Ta = 1.7。 通过在TaN沉积期间关闭氮气流,容易生长TaN / Ta双层,其具有优于单个Ta层或单个TaN层的铜扩散阻挡性能。

    Temperature stable metal nitride gate electrode
    5.
    发明授权
    Temperature stable metal nitride gate electrode 有权
    温度稳定的金属氮化物栅电极

    公开(公告)号:US07023064B2

    公开(公告)日:2006-04-04

    申请号:US10710063

    申请日:2004-06-16

    IPC分类号: H01L29/76

    摘要: An integrated circuit is provided including an FET gate structure formed on a substrate. This structure includes a gate dielectric on the substrate, and a metal nitride layer overlying the gate dielectric and in contact therewith. This metal nitride layer is characterized as MNx, where M is one of W, Re, Zr, and Hf, and x is in the range of about 0.7 to about 1.5. Preferably the layer is of WNx, and x is about 0.9. Varying the nitrogen concentration in the nitride layer permits integration of different FET characteristics on the same chip. In particular, varying x in the WNx layer permits adjustment of the threshold voltage in the different FETs. The polysilicon depletion effect is substantially reduced, and the gate structure can be made thermally stable up to about 1000° C.

    摘要翻译: 提供了一种集成电路,其包括形成在衬底上的FET栅极结构。 该结构包括衬底上的栅极电介质和覆盖栅极电介质并与其接触的金属氮化物层。 该金属氮化物层的特征在于MN x,其中M是W,Re,Zr和Hf之一,x在约0.7至约1.5的范围内。 优选地,该层为W N x X,x为约0.9。 改变氮化物层中的氮浓度允许在同一芯片上集成不同的FET特性。 特别地,在WN 层中改变x允许调节不同FET中的阈值电压。 多晶硅耗尽效应显着降低,并且栅极结构可以在高达约1000℃下热稳定。

    Highly dilutable polishing concentrates and slurries
    7.
    发明授权
    Highly dilutable polishing concentrates and slurries 有权
    高度可稀释的抛光浓缩液和浆液

    公开(公告)号:US08404143B2

    公开(公告)日:2013-03-26

    申请号:US13402365

    申请日:2012-02-22

    IPC分类号: C09K13/00

    摘要: The present disclosure provides a concentrate for use in chemical mechanical polishing slurries, and a method of diluting that concentrate to a point of use slurry. The concentrate comprises abrasive, complexing agent, and corrosion inhibitor, and the concentrate is diluted with water and oxidizer. These components are present in amounts such that the concentrate can be diluted at very high dilution ratios, without affecting the polishing performance.

    摘要翻译: 本公开提供了用于化学机械抛光浆料的浓缩物,以及将该浓缩物稀释到使用点浆料的方法。 浓缩物包括研磨剂,络合剂和缓蚀剂,浓缩物用水和氧化剂稀释。 这些组分的存在量使得浓缩物可以以非常高的稀释比稀释,而不影响抛光性能。

    HIGHLY DILUTABLE POLISHING CONCENTRATES AND SLURRIES
    8.
    发明申请
    HIGHLY DILUTABLE POLISHING CONCENTRATES AND SLURRIES 有权
    高灵敏度的抛光浓度和流动性

    公开(公告)号:US20120145951A1

    公开(公告)日:2012-06-14

    申请号:US13402365

    申请日:2012-02-22

    IPC分类号: C09K13/00 C09K13/04

    摘要: The present disclosure provides a concentrate for use in chemical mechanical polishing slurries, and a method of diluting that concentrate to a point of use slurry. The concentrate comprises abrasive, complexing agent, and corrosion inhibitor, and the concentrate is diluted with water and oxidizer. These components are present in amounts such that the concentrate can be diluted at very high dilution ratios, without affecting the polishing performance.

    摘要翻译: 本公开提供了用于化学机械抛光浆料的浓缩物,以及将该浓缩物稀释到使用点浆料的方法。 浓缩物包括研磨剂,络合剂和缓蚀剂,浓缩物用水和氧化剂稀释。 这些组分的存在量使得浓缩物可以以非常高的稀释比稀释,而不影响抛光性能。