Chamber cleaning method
    23.
    发明申请
    Chamber cleaning method 审中-公开
    室内清洗方式

    公开(公告)号:US20050155625A1

    公开(公告)日:2005-07-21

    申请号:US10761654

    申请日:2004-01-20

    CPC classification number: C23C16/4405 B08B7/00

    Abstract: A method suitable for cleaning the interior surfaces of a process chamber is disclosed. The invention is particularly effective in removing silicon nitride and silicon dioxide residues from the interior surfaces of a chemical vapor deposition (CVD) chamber. The method includes reacting nitrous oxide (N2O) gas with nitrogen trifluoride (NF3) gas in a plasma to generate nitric oxide (NO) and fluoride (F) radicals. Due to the increased density of nitric oxide radicals generated from the nitrous oxide, the etch and removal rate of the residues on the interior surfaces of the chamber is enhanced. Consequently, the quantity of nitrogen trifluoride necessary to efficiently and expeditiously carry out the chamber cleaning process is reduced.

    Abstract translation: 公开了一种适于清洁处理室内表面的方法。 本发明特别有效地从化学气相沉积(CVD)室的内表面去除氮化硅和二氧化硅残余物。 该方法包括在等离子体中使一氧化二氮(N 2 O 2 O)气体与三氟化氮(NF 3 N 3)气体反应以产生一氧化氮(NO)和氟化物(F)基团 。 由于由一氧化二氮产生的一氧化氮自由基的密度增加,腔室内表面上残留物的蚀刻和去除速度增强。 因此,有效且快速地进行室清洁处理所需的三氟化氮的量减少。

    Metal surface and film protection method to prolong Q-time after metal deposition
    25.
    发明授权
    Metal surface and film protection method to prolong Q-time after metal deposition 失效
    金属表面和膜保护方法延长金属沉积后的Q时间

    公开(公告)号:US06825120B1

    公开(公告)日:2004-11-30

    申请号:US10176855

    申请日:2002-06-21

    CPC classification number: H01L21/76877 H01L21/7684

    Abstract: The present invention relates to a method of protecting a fresh metal surface, preferably copper, after a metal deposition step. The metal deposition is preferably part of single or dual damascene process. The metal surface is treated with an amine, preferably BTA, to form a metal complex that is a hydrophobic monolayer and prevents the underlying metal from reacting to form oxides that can degrade device performance. The amine can be applied in various ways including dipping, spraying, spin coating, and by a CVD method. The sacrificial protective layer can remain on the substrate during a storage period of up to hours or days before it is removed in a subsequent chemical mechanical polish step. The use of a sacrificial protective layer improves throughput in a damascene process by allowing long queue times between metal deposition and CMP which gives more flexibility to production flow and reduces cost.

    Abstract translation: 本发明涉及在金属沉积步骤之后保护新鲜金属表面,优选铜的方法。 金属沉积优选是单镶嵌或双镶嵌工艺的一部分。 用胺(优选BTA)处理金属表面以形成作为疏水性单层的金属络合物,并防止下面的金属反应形成可能降低器件性能的氧化物。 胺可以以各种方式施用,包括浸渍,喷涂,旋涂和通过CVD方法。 在后续化学机械抛光步骤中除去之前,牺牲保护层可以在高达数小时或数天的储存期间保留在基材上。 牺牲保护层的使用通过允许金属沉积和CMP之间的长队列时间来提高镶嵌工艺中的生产率,这为生产流程提供了更大的灵活性并降低了成本。

    Method for capping over a copper layer
    26.
    发明授权
    Method for capping over a copper layer 失效
    覆铜层的方法

    公开(公告)号:US06790778B1

    公开(公告)日:2004-09-14

    申请号:US10658270

    申请日:2003-09-10

    CPC classification number: H01L21/76834 H01L21/76883 Y10S438/902 Y10S438/906

    Abstract: A method for capping over a copper layer. A copper layer is deposited overlying a substrate. The copper surface is treated with hydrogen-containing plasma to remove copper oxides formed thereon, thereby suppressing copper hillock formation. The treated copper surface is treated again with nitrogen-containing plasma to improve adhesion of the copper surface. A capping layer is formed on the copper layer.

    Abstract translation: 一种覆盖铜层的方法。 将铜层沉积在衬底上。 用含氢等离子体处理铜表面以除去其上形成的铜氧化物,从而抑制铜形成小丘。 处理的铜表面再次用含氮等离子体处理以改善铜表面的粘附。 在铜层上形成覆盖层。

    Method and system for slurry usage reduction in chemical mechanical polishing
    27.
    发明授权
    Method and system for slurry usage reduction in chemical mechanical polishing 失效
    化学机械抛光中浆料用量减少的方法和系统

    公开(公告)号:US06769959B2

    公开(公告)日:2004-08-03

    申请号:US10050314

    申请日:2002-01-15

    CPC classification number: B24B37/04 B24B57/02

    Abstract: A method and system is disclosed for reducing slurry usage in a chemical mechanical polishing operation utilizing at least one polishing pad thereof. Slurry can be intermittently supplied to a chemical mechanical polishing device. The slurry is generally flushed so that a portion of said slurry is trapped in a plurality of pores of at least one polishing pad associated with said chemical mechanical polishing device, wherein only a minimum amount of said slurry necessary is utilized to perform said chemical mechanical polishing operation, thereby reducing slurry usage and maintaining a consistent level of slurry removal rate performance and a decrease in particle defects thereof. The present invention thus discloses a method and system for intermittently delivering slurry to a chemical mechanical polishing device in a manner that significantly conserves slurry usage.

    Abstract translation: 公开了一种利用其至少一个抛光垫在化学机械抛光操作中减少浆料使用的方法和系统。 浆料可以间歇地供应到化学机械抛光装置。 通常将浆料冲洗,使得所述浆料的一部分被捕获在与所述化学机械抛光装置相关联的至少一个抛光垫的多个孔中,其中仅使用最少量的所需浆料来进行所述化学机械抛光 操作,从而减少浆料的使用并保持一致的浆料去除速率性能水平和其颗粒缺陷的减少。 因此,本发明公开了一种用于以显着节省浆料使用的方式间歇地将浆料输送到化学机械抛光装置的方法和系统。

    Self-aligned method for forming dual gate thin film transistor (TFT) device
    28.
    发明授权
    Self-aligned method for forming dual gate thin film transistor (TFT) device 有权
    用于形成双栅极薄膜晶体管(TFT)器件的自对准方法

    公开(公告)号:US06673661B1

    公开(公告)日:2004-01-06

    申请号:US10324965

    申请日:2002-12-20

    Abstract: A method for fabricating a dual gate thin film transistor (TFT) device provides for forming a pair of source/drain layers self-aligned with respect to a first gate electrode and forming a second gate electrode self-aligned with respect to both the pair of source/drain layers and the first gate electrode. Thus, the dual gate TFT device is fabricated with enhanced alignment. In addition, the dual gate TFT device (or a single gate TFT device) may be fabricated with source/drain layers formed of a silicon-germanium alloy material, such as to provide the TFT device with enhanced performance with respect to a kink effect.

    Abstract translation: 制造双栅极薄膜晶体管(TFT)器件的方法提供了形成相对于第一栅极电极自对准的一对源极/漏极层,并且形成相对于所述一对栅极电极自对准的第二栅电极 源极/漏极层和第一栅极电极。 因此,双栅极TFT器件被制造成具有增强的对准。 此外,双栅极TFT器件(或单栅极TFT器件)可以由硅 - 锗合金材料形成的源极/漏极层制造,以提供相对于扭结效应具有增强性能的TFT器件。

    Method of forming a copper damascene structure comprising a recessed copper-oxide-free initial copper structure
    29.
    发明授权
    Method of forming a copper damascene structure comprising a recessed copper-oxide-free initial copper structure 有权
    形成铜镶嵌结构的方法,其包括凹陷的无铜氧化物的初始铜结构

    公开(公告)号:US06670274B1

    公开(公告)日:2003-12-30

    申请号:US10261967

    申请日:2002-10-01

    CPC classification number: H01L21/02068 H01L21/32134 H01L21/76849

    Abstract: A method of forming a planarized final copper structure including the following steps. A structure is provided having a patterned dielectric layer formed thereover. The patterned dielectric layer having an opening formed therein. A barrier layer is formed over the patterned dielectric layer, lining the opening. An initial planarized copper structure is formed within the barrier layer lined opening, and is planar with the barrier layer overlying the patterned dielectric layer. The initial planarized copper structure is recessed below the barrier layer overlying the patterned dielectric layer a distance to form a recessed copper structure. Any copper oxide formed upon the recessed copper structure is removed. A conductor film is formed over the recessed, copper oxide-free initial copper structure and the barrier layer. The excess of the conductor film is removed from over the barrier layer, and the excess of the barrier layer overlying the patterned dielectric layer is removed, by a planarization process to form the planarized final copper structure. The planarized final copper structure comprising: the lower, recessed copper oxide-free initial copper structure; and an overlying planarized conductor film, wherein the overlying planarized conductor film isolates the lower, recessed copper oxide-free initial copper structure from the ambient atmosphere.

    Abstract translation: 一种形成平面化最终铜结构的方法,包括以下步骤。 提供具有形成在其上的图案化电介质层的结构。 图案化的介电层具有形成在其中的开口。 在图案化的电介质层上形成阻挡层,衬在开口上。 初始的平坦化铜结构形成在阻挡层衬里的开口内,并且与阻挡层叠置在图案化的介电层上是平面的。 初始平坦化的铜结构在阻挡层的下方凹进在图案化的介电层上方一段距离以形成凹陷的铜结构。 形成在凹陷的铜结构上的任何氧化铜被去除。 在凹陷的无铜氧化物的初始铜结构和阻挡层上形成导体膜。 通过平坦化工艺去除覆盖在图案化电介质层上的阻挡层的过量,从而形成平坦化的最终铜结构。 平坦化的最终铜结构包括:较低的凹陷的无铜氧化物的初始铜结构; 和覆盖的平坦化导体膜,其中上覆的平坦化导体膜将较低的凹陷的无铜氧化物的初始铜结构与环境大气隔离。

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