Low-pressure deposition of metal layers from metal-carbonyl precursors
    3.
    发明申请
    Low-pressure deposition of metal layers from metal-carbonyl precursors 有权
    金属 - 羰基前驱体金属层的低压沉积

    公开(公告)号:US20050070100A1

    公开(公告)日:2005-03-31

    申请号:US10673908

    申请日:2003-09-30

    CPC分类号: C23C16/16 H01L21/28556

    摘要: A method for depositing metal layers on semiconductor substrates by a thermal chemical vapor deposition (TCVD) process includes introducing a process gas containing a metal carbonyl precursor in a process chamber and depositing a metal layer on a substrate. The TCVD process utilizes a short residence time for the gaseous species in the processing zone above the substrate to form a low-resistivity metal layer. In one embodiment of the invention, the metal carbonyl precursor can be selected from at least one of W(CO)6, Ni(CO)4, Mo(CO)6, Co2(CO)8, Rh4(CO)12, Re2(CO)10, Cr(CO)6, and Ru3(CO)12 precursors. In another embodiment of the invention, a method is provided for depositing low-resistivity W layers at substrate temperatures below about 500° C., by utilizing a residence time less than about 120 msec.

    摘要翻译: 通过热化学气相沉积(TCVD)方法在金属层上沉积金属层的方法包括在处理室中引入含有羰基金属前驱体的工艺气体并在基底上沉积金属层。 TCVD工艺利用在衬底上方的处理区域中的气态物质的短暂停留时间以形成低电阻率金属层。 在本发明的一个实施方案中,金属羰基前体可以选自W(CO)6,Ni(CO)4,Mo(CO)6,Co 2(CO)8,Rh 4(CO)12,Re 2 (CO)10,Cr(CO)6和Ru 3(CO)12前体)。 在本发明的另一个实施例中,提供了一种通过利用小于约120毫秒的停留时间在低于约500℃的衬底温度下沉积低电阻W层的方法。

    Method of forming a metal layer
    5.
    发明申请
    Method of forming a metal layer 审中-公开
    形成金属层的方法

    公开(公告)号:US20050221000A1

    公开(公告)日:2005-10-06

    申请号:US10813680

    申请日:2004-03-31

    摘要: A method and a processing tool are provided for forming a metal layer with improved morphology on a substrate. The method includes pre-treating the substrate by exposing the substrate to excited species in a plasma, exposing the pre-treated substrate to a process gas containing a metal-carbonyl precursor, and forming a metal layer on the pre-treated substrate surface by a chemical vapor deposition process. The metal-carbonyl precursor can contain W(CO)6, Ni(CO)4, Mo(CO)6, CO2(CO)8, Rh4(CO)12, Re2(CO)10, Cr(CO)6, or Ru3(CO)12 or any combination thereof, and the metal layer can contain W, Ni, Mo, Co, Rh, Re, Cr, or Ru, or any combination thereof, respectively.

    摘要翻译: 提供了一种用于在衬底上形成具有改善的形态的金属层的方法和加工工具。 该方法包括通过将衬底暴露于等离子体中的激发物质来预处理衬底,将预处理的衬底暴露于含有羰基金属前体的工艺气体中,以及在预处理的衬底表面上形成金属层 化学气相沉积工艺。 金属羰基前体可以含有W(CO)6,Ni(CO)4,Mo(CO)6,CO, 2(CO)8,Rh 4(CO)12,Re 2(CO) Cr(CO)6或Ru 3(CO)12 12或其任何组合,和 金属层可以分别含有W,Ni,Mo,Co,Rh,Re,Cr或Ru,或其任何组合。

    CVD process capable of reducing incubation time
    6.
    发明授权
    CVD process capable of reducing incubation time 失效
    CVD工艺能够减少孵化时间

    公开(公告)号:US07063871B2

    公开(公告)日:2006-06-20

    申请号:US10617819

    申请日:2003-07-14

    IPC分类号: C23C16/16

    CPC分类号: C23C16/16

    摘要: A metal CVD process includes a step (A) of introducing a gaseous source material containing a metal carbonyl compound into a process space adjacent to a surface of a substrate to be processed in such a manner that the metal carbonyl compound has a first partial pressure, and a step (B) of depositing a metal film on the surface of the substrate by introducing a gaseous source material containing the metal carbonyl compound into the process space in such a mater that the metal carbonyl compound has a second, smaller partial pressure. The step (A) is conducted such that there is caused no substantial deposition of the metal film on the substrate.

    摘要翻译: 金属CVD法包括将含有羰基金属化合物的气态源材料以与金属羰基化合物具有第一分压的方式相连接的待处理基板的表面的工艺空间引入的工序(A) 以及在金属羰基化合物具有第二较小分压的情况下,通过将含有羰基金属化合物的气态源材料引入到工艺空间中,在基板的表面上沉积金属膜的工序(B)。 进行步骤(A),使得金属膜不会在基板上实质上沉积。

    Film Forming Method, Plasma Film Forming Apparatus and Storage Medium
    8.
    发明申请
    Film Forming Method, Plasma Film Forming Apparatus and Storage Medium 有权
    成膜方法,等离子体成膜装置和储存介质

    公开(公告)号:US20100167540A1

    公开(公告)日:2010-07-01

    申请号:US12223781

    申请日:2007-02-09

    IPC分类号: H01L21/768 C23C14/34

    摘要: Disclosed is a technique for embedding metal in a recess provided in the surface of a process object, such as a semiconductor wafer W, only by plasma sputtering. The metal is copper as a typical example. The recess has a microscopic hole or trench having a diameter or width of 100 nm or less as a typical example. A film forming step and a diffusion step are alternately performed a plurality of times. The film forming step deposits a small amount of a metal film in the recess. The diffusion step moves the deposited metal film toward the bottom portion of the recess. In the film forming step, bias power to be applied to a stage for supporting the wafer W is set to a value ensuring that, on the surface of the wafer W, the rate of metal deposition due to the drawing-in of metal particles is substantially equal to the rate of the sputter etching by plasma. In the diffusion step, the wafer W is maintained at a temperature which permits occurrence of surface diffusion of the metal film deposited in the recess.

    摘要翻译: 公开了一种仅通过等离子体溅射将金属嵌入设置在诸如半导体晶片W的处理对象表面的凹部中的技术。 金属是铜,作为典型的例子。 该凹部具有作为典型实例的直径或宽度为100nm或更小的微孔或沟槽。 交替进行成膜步骤和扩散步骤。 成膜步骤在凹槽中沉积少量的金属膜。 扩散步骤将沉积的金属膜移向凹部的底部。 在成膜步骤中,施加到用于支撑晶片W的载物台的偏置功率被设定为确保在晶片W的表面上由金属颗粒的吸入引起的金属沉积速率为 基本上等于通过等离子体的溅射蚀刻的速率。 在扩散步骤中,晶片W保持在允许沉积在凹槽中的金属膜的表面扩散出现的温度。

    Seed Film Forming Method, Plasma-Assisted Film Forming System and Storage Medium
    9.
    发明申请
    Seed Film Forming Method, Plasma-Assisted Film Forming System and Storage Medium 审中-公开
    种子成膜方法,等离子体辅助成膜系统和储存介质

    公开(公告)号:US20090183984A1

    公开(公告)日:2009-07-23

    申请号:US12223383

    申请日:2007-01-26

    IPC分类号: C23C14/34 C23C14/14

    摘要: The invention is related to A seed film forming method capable of forming a seed film in recesses without forming overhangs.The seed film forming method of depositing a seed film for plating includes the steps of: producing metal ions by ionizing a metal target with a plasma in a processing vessel that can be evacuated; and depositing a metal film on a surface provided with recesses of a workpiece mounted on a stage placed in the processing vessel by supplying bias power to the workpiece to attract the metal ions to the workpiece; wherein a film deposition step of depositing the metal film by using the bias power determined so that the metal film deposited on the surface of the workpiece may not be sputtered, and a film deposition interrupting step of interrupting the deposition of the metal film by stopping producing the metal ions are repeated alternately by a number of cycles.

    摘要翻译: 本发明涉及能够在不形成突出端的情况下在凹陷中形成种子膜的种子膜形成方法。 沉积用于电镀的种子膜的种子膜形成方法包括以下步骤:通过在能够被抽真空的处理容器中用等离子体电离金属靶产生金属离子; 以及通过向所述工件提供偏置功率以将金属离子吸引到所述工件上,在安装在放置在所述处理容器中的工作台上的工件的设置有凹部的表面上沉积金属膜; 其中,通过使用确定为使得沉积在所述工件的表面上的金属膜不会被溅射的偏置功率来沉积所述金属膜的膜沉积步骤,以及通过停止产生来中断所述金属膜的沉积的膜沉积中断步骤 金属离子交替重复多次。

    Film forming method, plasma film forming apparatus and storage medium
    10.
    发明授权
    Film forming method, plasma film forming apparatus and storage medium 有权
    成膜方法,等离子体成膜装置和存储介质

    公开(公告)号:US08026176B2

    公开(公告)日:2011-09-27

    申请号:US12223781

    申请日:2007-02-09

    IPC分类号: H01L21/311

    摘要: A technique for embedding metal in a microscopic recess provided in the surface of a process object, such as a semiconductor wafer, by plasma sputtering. A film forming step and a diffusion step are alternately performed a plurality of times. The film forming step deposits a small amount of metal film in the recess. The diffusion step moves the deposited metal film towards the bottom portion of the recess. In the film forming step, bias power to be applied to a stage for supporting the wafer is set to a value ensuring that, on the surface of the wafer, the rate of metal deposition due to the drawing-in of metal particles is substantially equal to the rate of the sputter etching by plasma. In the diffusion step, the wafer is maintained at a temperature which permits occurrence of surface diffusion of the metal film deposited in the recess.

    摘要翻译: 通过等离子体溅射将金属嵌入设置在处理对象(例如半导体晶片)的表面中的微观凹槽中的技术。 交替进行成膜步骤和扩散步骤。 成膜步骤在凹槽中沉积少量的金属膜。 扩散步骤将沉积的金属膜移向凹部的底部。 在成膜步骤中,施加到用于支撑晶片的载物台的偏置功率被设定为确保在晶片的表面上由于金属颗粒的吸入引起的金属沉积速率基本相等的值 到等离子体的溅射蚀刻速率。 在扩散步骤中,晶片保持在允许沉积在凹槽中的金属膜的表面扩散出现的温度。