Copper plating of semiconductor devices using intermediate immersion step
    71.
    发明申请
    Copper plating of semiconductor devices using intermediate immersion step 有权
    使用中间浸渍步骤的半导体器件的镀铜

    公开(公告)号:US20050250327A1

    公开(公告)日:2005-11-10

    申请号:US10840095

    申请日:2004-05-06

    摘要: A method of electroplating a metal layer on a semiconductor device includes a sequence of biasing operations that includes a first electroplating step at a first current density followed by a second immersion step at a second current density being less than the first current density, and subsequent electroplating steps of increasing current densities beginning with a third electroplating step having a third current density that is greater than the first current density. The second, low current density immersion step improves the quality of the plating process and produces a plated film that completely fills openings such as vias and trenches and avoids hollow vias and pull-back on the bottom corners of via and trench openings. The low current density second immersion step produces an electrochemical deposition process that provides low contact resistance and therefore reduces device failure.

    摘要翻译: 在半导体器件上电镀金属层的方法包括一系列偏置操作,其包括第一电流密度的第一电镀步骤,随后是第二电流密度小于第一电流密度的第二浸入步骤,随后的电镀 从具有大于第一电流密度的第三电流密度的第三电镀步骤开始增加电流密度的步骤。 第二,低电流密度浸没步骤提高了电镀工艺的质量,并且产生完全填充诸如通孔和沟槽等开口的电镀膜,并避免了通孔和沟槽开口的底角上的中空通孔和拉回。 低电流密度第二浸入步骤产生电化学沉积工艺,其提供低接触电阻并因此减少器件故障。

    Method of forming barrier layer with reduced resistivity and improved reliability in copper damascene process
    72.
    发明申请
    Method of forming barrier layer with reduced resistivity and improved reliability in copper damascene process 失效
    在铜镶嵌工艺中形成具有降低电阻率和改善可靠性的阻挡层的方法

    公开(公告)号:US20050191855A1

    公开(公告)日:2005-09-01

    申请号:US10788912

    申请日:2004-02-27

    IPC分类号: H01L21/44 H01L21/768

    摘要: A method for forming a copper dual damascene with improved copper migration resistance and improved electrical resistivity including providing a semiconductor wafer including upper and lower dielectric insulating layers separated by a middle etch stop layer; forming a dual damascene opening extending through a thickness of the upper and lower dielectric insulating layers wherein an upper trench line portion extends through the upper dielectric insulating layer thickness and partially through the middle etch stop layer; blanket depositing a barrier layer including at least one of a refractory metal and refractory metal nitride to line the dual damascene opening; carrying out a remote plasma etch treatment of the dual damascene opening to remove a bottom portion of the barrier layer to reveal an underlying conductive area; and, filling the dual damascene opening with copper to provide a substantially planar surface.

    摘要翻译: 一种用于形成具有改善的铜迁移阻力和改善的电阻率的铜双镶嵌的方法,包括提供包括由中间蚀刻停止层分隔的上和下介电绝缘层的半导体晶片; 形成延伸通过上下介电绝缘层的厚度的双镶嵌开口,其中上沟槽线部分延伸穿过上介电绝缘层的厚度并部分地穿过中蚀刻停止层; 毯子沉积包括难熔金属和难熔金属氮化物中的至少一种的阻挡层,以便排列双镶嵌开口; 对双镶嵌开口执行远程等离子体蚀刻处理以去除阻挡层的底部以露出下面的导电区域; 并且用铜填充双镶嵌开口以提供基本平坦的表面。

    CMP process leaving no residual oxide layer or slurry particles
    74.
    发明授权
    CMP process leaving no residual oxide layer or slurry particles 失效
    CMP工艺不留下残留的氧化物层或浆料颗粒

    公开(公告)号:US06903019B2

    公开(公告)日:2005-06-07

    申请号:US10706495

    申请日:2003-11-12

    摘要: Two problems seen in CMP as currently executed are a tendency for slurry particles to remain on the surface and the formation of a final layer of oxide. These problems have been solved by adding to the slurry a quantity of TMAH or TBAH. This has the effect of rendering the surface being polished hydrophobic. In that state a residual layer of oxide will not be left on the surface at the conclusion of CMP. Nor will many slurry abrasive particles remain cling to the freshly polished surface. Those that do are readily removed by a simple rinse or buffing. As an alternative, the CMP process may be performed in three stages—first convention CMP, then polishing in a solution of TMAH or TBAH, and finally a gentle rinse or buffing.

    摘要翻译: 当前执行的CMP中看到的两个问题是浆料颗粒保留在表面上并形成最后一层氧化物的倾向。 这些问题已经通过向浆料中加入一定量的TMAH或TBAH来解决。 这具有使表面被抛光的疏水性的效果。 在该状态下,在CMP结束时,残留的氧化层不会残留在表面上。 许多浆料磨料颗粒也不会保持粘附到新鲜抛光的表面。 那些可以通过简单的冲洗或抛光容易地去除。 作为替代方案,CMP工艺可以在三个阶段进行 - 第一个惯例CMP,然后在TMAH或TBAH的溶液中抛光,最后进行温和的冲洗或抛光。

    Dual contact ring and method for metal ECP process
    75.
    发明申请
    Dual contact ring and method for metal ECP process 有权
    双接触环和金属ECP工艺方法

    公开(公告)号:US20050056544A1

    公开(公告)日:2005-03-17

    申请号:US10664347

    申请日:2003-09-16

    IPC分类号: C25D5/02 C25D5/48 B23H7/26

    CPC分类号: C25D5/48 C25D5/028 Y10S204/07

    摘要: A dual contact ring for contacting a patterned surface of a wafer and electrochemical plating of a metal on the patterned central region of the wafer and removing the metal from the outer, edge region of the wafer. The dual contact ring has an outer voltage ring in contact with the outer, edge region of the wafer and an inner voltage ring in contact with the inner, central region of the wafer. The outer voltage ring is connected to a positive voltage source and the inner voltage ring is connected to a negative voltage source. The inner voltage ring applies a negative voltage to the wafer to facilitate the plating of metal onto the patterned region of the wafer. A positive voltage is applied to the wafer through the outer voltage ring to remove the plated metal from the outer, edge region of the substrate.

    摘要翻译: 用于接触晶片的图案化表面的双接触环和在晶片的图案化中心区域上的金属的电化学电镀,并从晶片的外边缘区域移除金属。 双接触环具有与晶片的外部边缘区域接触的外部电压环和与晶片的内部中心区域接触的内部电压环。 外部电压环连接到正电压源,内部电压环连接到负电压源。 内部电压环向晶片施加负电压以便于将金属电镀到晶片的图案化区域上。 通过外部电压环将正电压施加到晶片,以从衬底的外部边缘区域去除镀覆的金属。

    Use of a capping layer to reduce particle evolution during sputter pre-clean procedures
    76.
    发明授权
    Use of a capping layer to reduce particle evolution during sputter pre-clean procedures 有权
    在溅射预清洁过程中使用覆盖层来减少颗粒的发生

    公开(公告)号:US06531382B1

    公开(公告)日:2003-03-11

    申请号:US10140662

    申请日:2002-05-08

    IPC分类号: H01L213205

    CPC分类号: H01L21/76802 H01L21/76838

    摘要: A process for preparing a surface of a lower level metal structure, exposed at the bottom of a sub-micron diameter opening, to allow a low resistance interface to be obtained when overlaid with an upper level metal structure, has been developed. A disposable, capping insulator layer is first deposited on the composite insulator layer in which the sub-micron diameter opening will be defined in, to protect underlying components of the composite insulator from a subsequent metal pre-metal procedure. After anisotropically defining the sub-micron diameter opening in the capping insulator, and composite insulator layers, and after removal of the defining photoresist shape, an argon sputtering procedure is used to remove native oxide from the surface of the lower level metal structure. In addition to native oxide removal the argon sputtering procedure, featuring a negative DC bias applied to the substrate, also removes the capping insulator layer from the top surface of the composite insulator layer. An in situ metal deposition then allows a clean interface to result between the overlying metal layer, and the underlying plasma treated, metal surface.

    摘要翻译: 已经开发了制备在亚微米直径开口的底部露出的下层金属结构的表面以允许在与上层金属结构重叠时获得低电阻界面的方法。 首先将一次性封盖绝缘体层沉积在复合绝缘体层上,在该复合绝缘层上将限定亚微米直径的开口,以保护复合绝缘子的下面的部件免于后续的金属预金属工艺。 在各向异性地限定封盖绝缘体中的亚微米直径开口和复合绝缘体层之后,并且在去除限定的光致抗蚀剂形状之后,使用氩溅射方法从下层金属结构的表面去除自然氧化物。 除了自然氧化物除去之外,具有施加到衬底的负DC偏压的氩溅射工艺也从复合绝缘体层的顶表面去除封盖绝缘体层。 原位金属沉积然后允许在上覆的金属层和下面的等离子体处理的金属表面之间产生干净的界面。

    Three-dimensional type inductor for mixed mode radio frequency device
    77.
    发明授权
    Three-dimensional type inductor for mixed mode radio frequency device 有权
    用于混合模式射频设备的三维型电感器

    公开(公告)号:US06291872B1

    公开(公告)日:2001-09-18

    申请号:US09433255

    申请日:1999-11-04

    IPC分类号: H01L2900

    摘要: Vertical type structures for integrated circuit inductors are disclosed. These vertical type inductors include the single-loop type, the parallel-loop type and the screw type, which form three different embodiments in the present invention. In the first embodiment, three-dimensional type structures, a single-loop type is utilized as an integrated circuit inductor. This inductor structure is formed on a substrate and the axis of the structure is upright to the substrate. In another embodiment according to the present invention, a parallel-loop type structure for radio frequency (RF) integrated circuit inductor is provided. A screw type structure according to this invention is the third embodiment. It features an axis that is parallel to the surface of the substrate and threads into the semiconductor device.

    摘要翻译: 公开了集成电路电感器的垂直型结构。 这些垂直型电感器包括在本发明中形成三个不同实施例的单环型,并联环型和螺旋型。 在第一实施例中,采用单环型的三维型结构作为集成电路电感器。 该电感器结构形成在基板上,并且该结构的轴线垂直于基板。 在根据本发明的另一实施例中,提供了一种用于射频(RF)集成电路电感器的并联环路结构。 根据本发明的螺杆型结构是第三实施例。 它具有平行于衬底表面并进入半导体器件的轴线。

    Modular grinding apparatuses and methods for wafer thinning
    79.
    发明授权
    Modular grinding apparatuses and methods for wafer thinning 有权
    用于晶片薄化的模块化研磨装置和方法

    公开(公告)号:US09570311B2

    公开(公告)日:2017-02-14

    申请号:US13370946

    申请日:2012-02-10

    摘要: Methods of thinning a plurality of semiconductor wafers and apparatuses for carrying out the same are disclosed. A grinding module within a set of grinding modules receives and grinds a semiconductor wafer. A polishing module receives the semiconductor wafer from the grinding module and polishes the wafer. The polishing module is configured to polish the semiconductor wafer in less time than the grinding module is configured to grind the corresponding wafer.

    摘要翻译: 公开了使多个半导体晶片变薄的方法及其实施方法。 一组研磨模块内的研磨模块接收并研磨半导体晶片。 抛光模块从研磨模块接收半导体晶片并抛光晶片。 抛光模块被配置为在比研磨模块构造成磨碎相应晶片的时间少的时间内抛光半导体晶片。