APPARATUS AND METHOD FOR REMOVING BUBBLES FROM A PROCESS LIQUID
    42.
    发明申请
    APPARATUS AND METHOD FOR REMOVING BUBBLES FROM A PROCESS LIQUID 有权
    从工艺液中除去泡沫的装置和方法

    公开(公告)号:US20100024724A1

    公开(公告)日:2010-02-04

    申请号:US12567279

    申请日:2009-09-25

    CPC classification number: C25D21/04 C25D5/08 C25D17/02 H01L21/2885

    Abstract: The present invention is directed to methods and apparatuses for removing bubbles from a process liquid. The process liquid can comprise a plating solution used in a plating tool. The process liquid is supplied to a tank. A plurality of streams of the process liquid are directed towards a surface of the process liquid from below. This can be done by feeding the process liquid to a flow distributor comprising a plurality of openings providing flow communication between an inner volume of the flow distributor and a main volume of the tank. Before leaving the tank through an outlet, the process liquid flows through a flow barrier.

    Abstract translation: 本发明涉及从处理液中除去气泡的方法和装置。 处理液体可以包括用于电镀工具中的电镀液。 将处理液体供给到罐中。 处理液体的多个流从下方引导到处理液体的表面。 这可以通过将处理液体供给到包括多个开口的流量分配器来实现,该多个开口提供流量分配器的内部容积与罐的主体积之间的流动连通。 在离开水箱通过出口之前,工艺液体流过流动屏障。

    Method of reducing wafer contamination by removing under-metal layers at the wafer edge
    46.
    发明授权
    Method of reducing wafer contamination by removing under-metal layers at the wafer edge 有权
    通过在晶片边缘去除下金属层来减少晶片污染的方法

    公开(公告)号:US07169664B2

    公开(公告)日:2007-01-30

    申请号:US10747722

    申请日:2003-12-29

    Abstract: According to the present invention, a metal and a barrier material, such as copper and a tantalum-based barrier material, are effectively removed from the wafer edge and especially from the bevel by using an etchant that comprises a diluted mixture of hydrofluoric acid and nitric acid. The method is compatible with currently available etch modules for removing metal from the wafer edge, wherein, depending on the hardware specifics, copper, barrier material and dielectric material may be removed in a single etch step, or a first etch step may be performed substantially without any nitric acid so as to avoid the formation of nitric oxides. In this way, the formation of instable layer stacks may be substantially avoided, thereby reducing the risk of material delamination from the substrate edge.

    Abstract translation: 根据本发明,通过使用包含氢氟酸和硝酸的稀释混合物的蚀刻剂,有效地从晶片边缘,特别是从斜面去除金属和阻挡材料,例如铜和钽基阻挡材料 酸。 该方法与当前可用的用于从晶片边缘去除金属的蚀刻模块兼容,其中,根据硬件特性,可以在单个蚀刻步骤中去除铜,阻挡材料和电介质材料,或者可以基本上执行第一蚀刻步骤 没有任何硝酸,以避免形成一氧化氮。 以这种方式,可以基本上避免形成不稳定层叠,从而降低材料从基板边缘分层的风险。

    Method and system for controlling ion distribution during plating of a metal on a workpiece surface
    47.
    发明授权
    Method and system for controlling ion distribution during plating of a metal on a workpiece surface 有权
    在工件表面镀金属时控制离子分布的方法和系统

    公开(公告)号:US06974530B2

    公开(公告)日:2005-12-13

    申请号:US10358969

    申请日:2003-02-05

    Abstract: The flow of electrolyte and/or of ions is controlled by a diffuser element provided in a plating reactor, wherein, in one embodiment, the diffuser element comprises a mechanical adjustment mechanism to adjust the effective size of passages of the diffuser element. In another embodiment, the diffuser element comprises at least two patterns of passages that are movable relatively to each other so as to adjust an overlap and thus an effective size of the corresponding passages. Moreover, the path of ions within the plating reactor may be controlled by an electromagnetically driven diffuser element so that a required thickness profile on the workpiece surface may be obtained.

    Abstract translation: 电解质和/或离子的流动由设置在电镀反应器中的扩散器元件控制,其中在一个实施例中,漫射元件包括用于调节扩散器元件的通道的有效尺寸的机械调节机构。 在另一个实施例中,扩散器元件包括可相对于彼此移动的至少两个通道图案,以便调整相应通道的重叠并因此调整有效尺寸。 此外,电镀反应器内的离子路径可以由电磁驱动的扩散器元件来控制,从而可获得工件表面上所需的厚度分布。

    Apparatus and method for treating a substrate electrochemically while reducing metal corrosion
    48.
    发明授权
    Apparatus and method for treating a substrate electrochemically while reducing metal corrosion 失效
    电化学处理基板同时减少金属腐蚀的装置和方法

    公开(公告)号:US06841056B2

    公开(公告)日:2005-01-11

    申请号:US10304903

    申请日:2002-11-26

    Applicant: Axel Preusse

    Inventor: Axel Preusse

    Abstract: A process tool for electrochemically treating a substrate is configured to reduce the oxygen concentration and/or the sulfur dioxide concentration in the vicinity of the substrate so that corrosion of copper may be reduced. In one embodiment, a substantially inert atmosphere is established within the process tool including a plating reactor by providing a continuous inert gas flow and/or by providing a cover that reduces a gas exchange with the ambient atmosphere. The substantially inert gas atmosphere may also be maintained during further process steps involved in electrochemically treating the substrate including required transportation steps between the individual process steps.

    Abstract translation: 用于电化学处理衬底的工艺工具被配置为降低衬底附近的氧浓度和/或二氧化硫浓度,从而可以降低铜的腐蚀。 在一个实施方案中,通过提供连续的惰性气体流和/或通过提供减少与环境气氛的气体交换的盖,在工艺工具内建立基本上惰性的气氛,包括电镀反应器。 在涉及电化学处理衬底的进一步工艺步骤期间,还可以维持基本上惰性的气体气氛,包括在各个工艺步骤之间所需的运输步骤。

    Apparatus for forming a copper interconnect
    49.
    发明授权
    Apparatus for forming a copper interconnect 有权
    用于形成铜互连的装置

    公开(公告)号:US06106680A

    公开(公告)日:2000-08-22

    申请号:US237573

    申请日:1999-01-26

    CPC classification number: C25D17/001 C25D17/005 H01L21/2885

    Abstract: A method and apparatus for fabricating electrochemical copper interconnections between the component parts of an integrated circuit on a semiconductor device. A cathodic platter is provided that includes contact pins that contact the surface of a semiconductor wafer at predetermined locations during the electrochemical deposition process. The contact pins are arranged on the cathodic platter so that when placed on the surface of the semiconductor wafer the contact pins surround the perimetrical edges of each respective semiconductor device on the semiconductor wafer. Once the semiconductor wafer is properly positioned on the cathodic platter, a copper conductive layer can be electrochemically and uniformly deposited on the surface of the semiconductor device.

    Abstract translation: 一种用于在半导体器件上的集成电路的部件之间制造电化学铜互连的方法和装置。 提供了一种阴极拼盘,其包括在电化学沉积过程期间在预定位置处接触半导体晶片的表面的接触针。 接触针布置在阴极盘上,使得当放置在半导体晶片的表面上时,接触引脚围绕半导体晶片上每个相应半导体器件的周边。 一旦半导体晶片正确地定位在阴极盘上,铜导电层可以电化学均匀地沉积在半导体器件的表面上。

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