Method and apparatus for uniform electropolishing of damascene IC structures by selective agitation
    31.
    发明授权
    Method and apparatus for uniform electropolishing of damascene IC structures by selective agitation 失效
    通过选择性搅拌均匀电解抛光镶嵌IC结构的方法和装置

    公开(公告)号:US07531079B1

    公开(公告)日:2009-05-12

    申请号:US11065708

    申请日:2005-02-23

    IPC分类号: C25F3/16

    摘要: The present invention pertains to apparatus and methods for planarization of metal surfaces having both recessed and raised features, over a large range of feature sizes. The invention accomplishes this by increasing the fluid agitation in raised regions with respect to recessed regions. That is, the agitation of the electropolishing bath fluid is agitated or exchanged as a function of elevation on the metal film profile. The higher the elevation, the greater the movement or exchange rate of bath fluid. In preferred methods of the invention, this agitation is achieved through the use of a microporous electropolishing pad that moves over (either near or in contact with) the surface of the wafer during the electropolishing process. Thus, methods of the invention are electropolishing methods, which in some cases include mechanical polishing elements.

    摘要翻译: 本发明涉及在大范围的特征尺寸上具有凹陷和凸起特征的金属表面的平坦化的装置和方法。 本发明通过增加相对于凹陷区域的凸起区域中的流体搅拌来实现。 也就是说,作为金属膜轮廓上的仰角的函数来搅动或更换电抛光浴液的搅动。 海拔越高,浴液的运动或汇率越高。 在本发明的优选方法中,通过使用在电解抛光过程中在晶片表面上移动(接近或接触)的微孔电解抛光垫来实现该搅拌。 因此,本发明的方法是电抛光方法,其在一些情况下包括机械抛光元件。

    Selectively accelerated plating of metal features
    32.
    发明授权
    Selectively accelerated plating of metal features 有权
    选择性加速电镀金属功能

    公开(公告)号:US07405163B1

    公开(公告)日:2008-07-29

    申请号:US10824069

    申请日:2004-04-13

    IPC分类号: H01L21/303

    摘要: An accelerator solution is globally applied to a workpiece to form an accelerator film, and then a portion of the accelerator film is selectively removed from the workpiece to form an acceleration region having a higher concentration of accelerator. The higher concentration of accelerator causes metal to deposit at a faster rate in the acceleration region than in a non-accelerated region for the duration of metal deposition. To make a metal feature, a resist layer is applied to a workpiece surface and patterned to form a recessed region and a field region. Then, a metal seed layer is deposited on the workpiece surface. An accelerator solution is applied so that an accelerator film forms on the metal seed layer. A portion of the accelerator film is selectively removed from the field region, leaving another portion of the accelerator film in the recessed region. Then, copper is electroplated onto the workpiece, and the copper plates at an accelerated rate in the recessed region, resulting in a greater thickness of copper in the recessed region compared to copper in the field region. A wet etch is performed to remove copper from the field region. Then, the resist is removed from the field region, resulting in a coarse copper wire.

    摘要翻译: 将加速器溶液全局应用于工件以形成加速剂膜,然后将一部分加速剂膜从工件中选择性地除去,形成加速剂浓度较高的加速区域。 在金属沉积期间,较高浓度的促进剂会导致金属在加速区域以比非加速区域更快的速率沉积。 为了形成金属特征,将抗蚀剂层施加到工件表面并图案化以形成凹陷区域和场区域。 然后,金属种子层沉积在工件表面上。 施加促进剂溶液,使得在金属种子层上形成促进剂膜。 加速膜的一部分从场区域选择性地去除,另外部分加速器膜在凹陷区域中。 然后,在凹陷区域中以铜加速的方式将铜电镀到工件上,铜板以加速的速度电镀,导致与凹陷区域中的铜相比,凹陷区域中的铜的厚度更大。 执行湿蚀刻以从场区域去除铜。 然后,从场区域去除抗蚀剂,导致粗铜线。

    Process for electroplating metal into microscopic recessed features
    33.
    发明授权
    Process for electroplating metal into microscopic recessed features 有权
    将金属电镀成微观凹陷特征的工艺

    公开(公告)号:US06946065B1

    公开(公告)日:2005-09-20

    申请号:US09716016

    申请日:2000-11-16

    摘要: Several techniques are described for reducing or mitigating the formation of seams and/or voids in electroplating the interior regions of microscopic recessed features. Cathodic polarization is used to mitigate the deleterious effects of introducing a substrate plated with a seed layer into an electroplating solution. Also described are diffusion-controlled electroplating techniques to provide for bottom-up filling of trenches and vias, avoiding thereby sidewalls growing together to create seams/voids. A preliminary plating step is also described that plates a thin film of conductor on the interior surfaces of features leading to adequate electrical conductivity to the feature bottom, facilitating bottom-up filling.

    摘要翻译: 描述了几种用于减少或减轻在电镀微观凹陷特征的内部区域中的接缝和/或空隙的形成的技术。 阴极极化用于减轻将电镀有种子层的基板引入电镀溶液中的有害影响。 还描述了扩散控制的电镀技术,以提供沟槽和通孔的自下而上的填充,从而避免由此侧壁一起生长以产生接缝/空隙。 还描述了初步电镀步骤,在特征的内表面上镀覆导电薄膜,导致特征底部具有足够的导电性,便于自底向上填充。

    Method and apparatus for uniform electropolishing of damascene ic structures by selective agitation
    34.
    发明授权
    Method and apparatus for uniform electropolishing of damascene ic structures by selective agitation 有权
    通过选择性搅拌均匀电解抛光镶嵌结构的方法和装置

    公开(公告)号:US06709565B2

    公开(公告)日:2004-03-23

    申请号:US09967075

    申请日:2001-09-28

    IPC分类号: B23H1100

    摘要: The present invention pertains to apparatus and methods for planarization of metal surfaces having both recessed and raised features, over a large range of feature sizes. The invention accomplishes this by increasing the fluid agitation in raised regions with respect to recessed regions. That is, the agitation of the electropolishing bath fluid is agitated or exchanged as a function of elevation on the metal film profile. The higher the elevation, the greater the movement or exchange rate of bath fluid. In preferred methods of the invention, this agitation is achieved through the use of a microporous electropolishing pad that moves over (either near or in contact with) the surface of the wafer during the electropolishing process. Thus, methods of the invention are electropolishing methods, which in some cases include mechanical polishing elements.

    摘要翻译: 本发明涉及在大范围的特征尺寸上具有凹陷和凸起特征的金属表面的平坦化的装置和方法。 本发明通过增加相对于凹陷区域的凸起区域中的流体搅拌来实现。 也就是说,作为金属膜轮廓上的仰角的函数来搅动或更换电抛光浴液的搅动。 海拔越高,浴液的运动或汇率越高。 在本发明的优选方法中,通过使用在电解抛光过程中在晶片表面上移动(接近或接触)的微孔电解抛光垫来实现该搅拌。 因此,本发明的方法是电抛光方法,其在一些情况下包括机械抛光元件。

    Mixed lithium manganese oxide and lithium nickel cobalt oxide positive electrodes
    36.
    发明授权
    Mixed lithium manganese oxide and lithium nickel cobalt oxide positive electrodes 失效
    混合锂锰氧化物和锂镍钴氧化物正极

    公开(公告)号:US06379842B1

    公开(公告)日:2002-04-30

    申请号:US09413744

    申请日:1999-10-06

    申请人: Steven T. Mayer

    发明人: Steven T. Mayer

    IPC分类号: H01M458

    摘要: Positive electrodes including a lithium nickel cobalt metal oxide are disclosed. The lithium nickel cobalt metal oxides have the general formula LixNiyCOzMnO2, where M is selected from the group consisting of aluminum, titanium, tungsten, chromium, molybdenum, magnesium, tantalum, silicon, and combinations thereof, x is between about 0 and about 1 and can be varied within this range by electrochemical insertion and extraction, the sum of y+z+n is about 1, n ranges between above 0 to about 0.25, y and z are both greater than 0, and the ratio z/y ranges from above 0 to about 1/3. Also disclosed are composite positive electrodes including the above-described lithium nickel cobalt metal oxides together with a lithium manganese metal oxide of the formula LixMn2−rM1rO4, where r is a value between 0 and 1 and M1 is chromium, titanium, tungsten, nickel, cobalt, iron, tin, zinc, zirconium, silicon, or a combination thereof.

    摘要翻译: 公开了包括锂镍钴金属氧化物的正电极。 锂镍钴金属氧化物具有通式LixNiyCOzMnO2,其中M选自铝,钛,钨,铬,钼,镁,钽,硅及其组合,x为约0至约1,以及 可以在该范围内通过电化学插入和提取而变化,y + z + n的和为约1,n在0至约0.25之间,y和z都大于0,z / y的比率范围为 高于0至约1/3。 还公开了包括上述锂镍钴金属氧化物和式LixMn2-rM1rO4的锂锰金属氧化物的复合正电极,其中r是0和1之间的值,M1是铬,钛,钨,镍, 钴,铁,锡,锌,锆,硅或其组合。

    Disk-assisted editing for recorded video material
    37.
    发明授权
    Disk-assisted editing for recorded video material 失效
    用于录制视频素材的磁盘辅助编辑

    公开(公告)号:US06201924B1

    公开(公告)日:2001-03-13

    申请号:US08482905

    申请日:1995-06-07

    IPC分类号: H04N576

    摘要: A disk-assisted system for editing video tapes. Source material from video tapes is logged onto random access storage such as a hard disk drive using of a Macintosh-based computer system. At any one time, only a small portion of the tape material is stored as video frames on the computer disk. By software control, material is cached back and forth between the computer disk and the video tape. Thus editing is accomplished and an edit decision list constructed for compilation of the final video production. This provides the advantage of fast access time for editing of the material which is on the disk while allowing actual physical editing at the end of the project of the actual video tape material. The processes of logging the material onto the disk and editing the final tape are performed automatically.

    摘要翻译: 用于编辑录像带的磁盘辅助系统。 来自视频磁带的源材料被记录到使用基于Macintosh的计算机系统的随机存取存储器例如硬盘驱动器上。 在任何一个时间,只有一小部分磁带材料作为视频帧存储在计算机磁盘上。 通过软件控制,材料在计算机磁盘和录像带之间来回缓存。 因此编辑完成并且为编译最终的视频制作而构造的编辑决定列表。 这提供了用于编辑磁盘上的材料的快速访问时间的优点,同时允许在实际录像带材料的项目结束时的实际物理编辑。 将材料记录到磁盘上并编辑最终磁带的过程自动执行。

    Capacitor with a composite carbon foam electrode
    38.
    发明授权
    Capacitor with a composite carbon foam electrode 失效
    电容器用复合碳泡沫电极

    公开(公告)号:US5898564A

    公开(公告)日:1999-04-27

    申请号:US760852

    申请日:1996-12-02

    IPC分类号: H01B1/04 H01G9/04

    摘要: Carbon aerogels used as a binder for granularized materials, including other forms of carbon and metal additives, are cast onto carbon or metal fiber substrates to form composite carbon thin film sheets. The thin film sheets are utilized in electrochemical energy storage applications, such as electrochemical double layer capacitors (aerocapacitors), lithium based battery insertion electrodes, fuel cell electrodes, and electrocapacitive deionization electrodes. The composite carbon foam may be formed by prior known processes, but with the solid partides being added during the liquid phase of the process, i.e. prior to gelation. The other forms of carbon may include carbon microspheres, carbon powder, carbon aerogel powder or particles, graphite carbons. Metal and/or carbon fibers may be added for increased conductivity. The choice of materials and fibers will depend on the electrolyte used and the relative trade off of system resistivity and power to system energy.

    摘要翻译: 用作颗粒状材料(包括其他形式的碳和金属添加剂)的粘合剂的碳气凝胶被浇铸到碳或金属纤维基材上以形成复合碳薄膜片。 薄膜片用于电化学储能应用,例如电化学双层电容器(aerocapacitors),锂基电池插入电极,燃料电池电极和电容去离子电极。 复合碳泡沫可以通过先前已知的方法形成,但是在该方法的液相期间,即在凝胶化之前加入固体成分。 碳的其他形式可以包括碳微球,碳粉,碳气凝胶粉或石墨碳。 可以加入金属和/或碳纤维以增加导电性。 材料和纤维的选择将取决于所使用的电解质和系统电阻率和功率对系统能量的相对折衷。

    Removal of field and embedded metal by spin spray etching
    39.
    发明授权
    Removal of field and embedded metal by spin spray etching 失效
    通过旋转喷涂蚀刻去除场和嵌入金属

    公开(公告)号:US5486234A

    公开(公告)日:1996-01-23

    申请号:US375054

    申请日:1995-01-19

    CPC分类号: H01L21/76838 H01L21/32134

    摘要: A process of removing both the field metal, such as copper, and a metal, such as copper, embedded into a dielectric or substrate at substantially the same rate by dripping or spraying a suitable metal etchant onto a spinning wafer to etch the metal evenly on the entire surface of the wafer. By this process the field metal is etched away completely while etching of the metal inside patterned features in the dielectric at the same or a lesser rate. This process is dependent on the type of chemical etchant used, the concentration and the temperature of the solution, and also the rate of spin speed of the wafer during the etching. The process substantially reduces the metal removal time compared to mechanical polishing, for example, and can be carried out using significantly less expensive equipment.

    摘要翻译: 通过将合适的金属蚀刻剂滴落或喷涂到旋转的晶片上以均匀地蚀刻金属,以基本上相同的速率将现场金属(例如铜)和金属(例如铜)两者嵌入电介质或基底中的步骤 晶片的整个表面。 通过该处理,在以相同或较小的速率蚀刻电介质中的图案化特征内的金属的同时蚀刻完全场地金属。 该过程取决于所使用的化学蚀刻剂的类型,溶液的浓度和温度,以及蚀刻期间晶片的旋转速度。 例如,与机械抛光相比,该方法显着降低了金属去除时间,并且可以使用显着更便宜的设备进行。