Method and apparatus for electroplating
    41.
    发明授权
    Method and apparatus for electroplating 有权
    电镀方法和装置

    公开(公告)号:US07476306B2

    公开(公告)日:2009-01-13

    申请号:US10814175

    申请日:2004-04-01

    IPC分类号: C25D17/02

    摘要: Apparatus and method for metal electroplating. The apparatus for metal electroplating includes an electroplating tank for containing an electrolyte at a first temperature, a substrate holder for holding a semiconductor substrate, and a heater for heating the portion of the electrolyte adjacent to the substrate holder to a second temperature higher than the first temperature.

    摘要翻译: 金属电镀设备及方法 用于金属电镀的设备包括用于在第一温度下容纳电解质的电镀槽,用于保持半导体衬底的衬底保持器和用于将邻近衬底保持器的部分电解质加热至高于第一温度的第二温度的加热器 温度。

    Method for integrating an electrodeposition and electro-mechanical polishing process
    43.
    发明授权
    Method for integrating an electrodeposition and electro-mechanical polishing process 失效
    整合电沉积和机电抛光工艺的方法

    公开(公告)号:US06793797B2

    公开(公告)日:2004-09-21

    申请号:US10106733

    申请日:2002-03-26

    IPC分类号: C25D518

    摘要: A method for alternately electrodepositing and electro-mechanically polishing to selectively fill a semiconductor feature with metal including a) providing an anode assembly and a semiconductor wafer disposed in spaced apart relation including an electrolyte there between the semiconductor wafer including a process surface including anisotropically etched features arranged for an electrodeposition process; b) applying an electric potential across the anode assembly and the semiconductor wafer to induce an electrolyte flow at a first current density to electrodeposit a metal filling portion onto the process surface; c) reversing the electric potential to reverse the electrolyte flow at a second current density to electropolish the process surface in an electropolishing process; and, d) sequentially repeating the steps b and c to electrodeposit at least a second metal filling portion to substantially fill the anisotropically etched features.

    摘要翻译: 一种用于交替电沉积和电机械抛光以选择性地用金属填充半导体特征的方法,包括:a)提供以间隔开的关系设置的阳极组件和半导体晶片,所述阳极组件和半导体晶片在半导体晶片之间包括电解质,所述电解质包括包括各向异性蚀刻特征 安排电沉积过程; b)在阳极组件和半导体晶片之间施加电位以在第一电流密度下引起电解质流动,以将金属填充部分电沉积到工艺表面上; c)逆转电位以在第二电流密度下反转电解质流动,以在电抛光过程中电镀处理表面; 以及d)依次重复步骤b和c以电沉积至少第二金属填充部分以基本上填充各向异性蚀刻的特征。

    Method for improving an electrodeposition process through use of a multi-electrode assembly
    44.
    发明授权
    Method for improving an electrodeposition process through use of a multi-electrode assembly 失效
    通过使用多电极组件来改善电沉积工艺的方法

    公开(公告)号:US06706166B2

    公开(公告)日:2004-03-16

    申请号:US10139975

    申请日:2002-05-06

    IPC分类号: C25D500

    摘要: A method for improving an electrodeposited metal film uniformity and preventing metal deposition and peeling of deposited metal from an electrode during an electrodeposition and electropolishing process including providing a first anode electrode assembly and a semiconductor wafer plating surface disposed in an electrolyte bath including a plating metal for deposition onto the semiconductor wafer plating surface; providing at least one additional anode electrode assembly including the plating metal disposed peripheral to the first anode electrode assembly for selectively applying the cathodic electrical potential during an electropolishing process; and, periodically alternating between an electrodeposition process and electropolishing process with respect to the semiconductor wafer plating surface such that the plating metal is preferentially plated onto the at least one additional electrode assembly.

    摘要翻译: 一种在电沉积和电解抛光过程中改善电沉积金属膜均匀性和防止金属沉积和从电极剥离的方法,包括提供第一阳极电极组件和半导体晶片电镀表面,该表面设置在包括电镀金属的电解液中 沉积到半导体晶片电镀表面上; 提供至少一个额外的阳极电极组件,其包括设置在所述第一阳极电极组件周围的电镀金属,用于在电抛光工艺期间选择性地施加阴极电位; 并且在相对于半导体晶片电镀表面的电沉积工艺和电解抛光工艺之间周期性地交替,使得电镀金属优先地镀在至少一个附加电极组件上。

    Method for fabricating metal gates in deep sub-micron devices
    45.
    发明授权
    Method for fabricating metal gates in deep sub-micron devices 有权
    在深亚微米器件中制造金属栅极的方法

    公开(公告)号:US06660577B2

    公开(公告)日:2003-12-09

    申请号:US10083277

    申请日:2002-02-23

    IPC分类号: H01L218249

    摘要: A method for fabricating metal gates in deep sub-micron CMOS devices. The method blanket deposits a transition metal nitride layer on top of a gate dielectric layer for forming gate electrodes for both a PMOS and an NMOS device. After a cap layer is deposited on top of the gate electrode for PMOS, a rapid thermal annealing process is carried out to drive out nitrogen from the transition metal nitride on top of the NMOS. Gate electrodes having different work functions on top of the PMOS and NMOS are thus achieved simultaneously by the same fabrication process.

    摘要翻译: 一种在深亚微米CMOS器件中制造金属栅极的方法。 该方法覆盖在栅介电层的顶部沉积过渡金属氮化物层,以形成用于PMOS和NMOS器件的栅电极。 在用于PMOS的栅电极的顶部上沉积覆盖层之后,进行快速热退火处理以从NMOS顶部的过渡金属氮化物驱出氮。 因此,通过相同的制造工艺同时实现在PMOS和NMOS之上具有不同功函数的栅电极。

    Process for fabricating tantalum nitride diffusion barrier for copper
matallization
    47.
    发明授权
    Process for fabricating tantalum nitride diffusion barrier for copper matallization 失效
    用于制造铜金属化的氮化钽扩散阻挡层的工艺

    公开(公告)号:US5668054A

    公开(公告)日:1997-09-16

    申请号:US584749

    申请日:1996-01-11

    摘要: A process for fabricating a tantalum nitride diffusion barrier for the advanced copper metallization of semiconductor devices is disclosed. The process comprises the steps of first preparing a semiconductor device fabricated over the surface of a silicon substrate having a component with a fabricated contact opening. Before the formation of the copper contact by deposition, the process performs a tantalum nitride low-pressure chemical-vapor-deposition procedure that deposits a layer of tantalum nitride thin film over the surface of the device substrate. After the copper deposition, a photoresist layer is subsequently fabricated for patterning the deposited copper contact and tantalum nitride layers, whereby the deposited thin film of tantalum nitride is patterned to form the thin film as the metallization diffusion barrier for the semiconductor device. The tantalum nitride low-pressure chemical-vapor-deposition procedure includes depositing a layer of tantalum nitride utilizing a metal-organic precursor terbutylimido-tris-diethylamido tantalum (TBTDET) in a cold-wall low pressure reactor with a base pressure of about 10.sup.-5 torr. The source of the metal-organic precursor is vaporized at a temperature of about 40.degree. to 50.degree. C. The typical deposition pressure is about 20 mtorr. Tantalum nitride layer of low carbon content and low resistivity may thus be formed in the disclosed chemical-vapor-deposition procedure having effective capability against copper diffusion.

    摘要翻译: 公开了一种用于制造用于半导体器件的先进铜金属化的氮化钽扩散阻挡层的工艺。 该方法包括以下步骤:首先制备在具有制造的接触开口的部件的硅衬底的表面上制造的半导体器件。 在通过沉积形成铜接触之前,该工艺执行在器件衬底的表面上沉积氮化钽薄层的氮化钽低压化学气相沉积工艺。 在铜沉积之后,随后制造光致抗蚀剂层以图案化沉积的铜接触和氮化钽层,由此沉积的氮化钽薄膜被图案化以形成作为半导体器件的金属化扩散阻挡层的薄膜。 氮化钽低压化学气相沉积方法包括使用金属有机前体叔丁基亚氨基 - 三 - 二乙基氨基钽(TBTDET)在基本压力为约10 -6的冷壁低压反应器中沉积氮化钽层, 5托 金属有机前体的来源在约40℃至50℃的温度下蒸发。典型的沉积压力为约20毫托。 因此,可以在具有对铜扩散的有效能力的公开的化学气相沉积方法中形成低碳含量和低电阻率的氮化钽层。

    LOW RESISTANCE AND RELIABLE COPPER INTERCONNECTS BY VARIABLE DOPING
    48.
    发明申请
    LOW RESISTANCE AND RELIABLE COPPER INTERCONNECTS BY VARIABLE DOPING 有权
    低电阻和可靠的铜互连通过可变掺杂

    公开(公告)号:US20120021602A1

    公开(公告)日:2012-01-26

    申请号:US13249823

    申请日:2011-09-30

    IPC分类号: H01L21/768

    摘要: A method and system is provided for efficiently varying the composition of the metal interconnects for a semiconductor device. A metal interconnect according to the present disclosure has an intermediate layer on a dielectric material, the intermediate layer having a relatively higher concentration of an impurity metal along with a primary metal, the impurity metal having a lower reduction potential than the primary metal. The metal interconnect has a main layer of the metal alloy interconnect on top of the intermediate layer and surrounded by the intermediate layer, the main layer having a relatively higher concentration of the primary metal than the intermediate layer, wherein the intermediate and main layers of the metal alloy interconnect each maintains a material uniformity.

    摘要翻译: 提供了一种方法和系统,用于有效地改变半导体器件的金属互连的组成。 根据本公开的金属互连在电介质材料上具有中间层,中间层与主金属一起具有较高浓度的杂质金属,杂质金属具有比初级金属低的还原电位。 金属互连件在中间层的顶部具有金属合金互连的主层,被中间层包围,主层具有比中间层更高的一次金属浓度,其中,中间层和中间层的中间层和主要层 金属合金互连件均保持材料均匀性。

    Composition and process for element displacement metal passivation
    50.
    发明申请
    Composition and process for element displacement metal passivation 审中-公开
    元件位移金属钝化的组成和工艺

    公开(公告)号:US20060189131A1

    公开(公告)日:2006-08-24

    申请号:US11067042

    申请日:2005-02-24

    IPC分类号: H01L21/44 H01L21/302

    摘要: A composition and process suitable for the passivation of metal lines, layers or surfaces, particularly for the passivation of copper in the fabrication of integrated circuit devices on wafer substrates. The process includes providing a novel composition solution in contact with a copper line, layer or surface on a substrate as the copper is subjected to chemical mechanical planarization (CMP). The composition includes reactive cations of a displacement metal which are suspended in solution and spontaneously displace the copper atoms in the copper in an oxidation/reduction reaction. The oxidized and displaced copper cations are carried away by the composition solution, and the newly-incorporated metal atoms in the copper substantially inhibit or prevent growth of copper oxides in the copper.

    摘要翻译: 一种适用于金属线,层或表面的钝化的组合物和方法,特别是在晶片衬底上制造集成电路器件时铜的钝化。 该方法包括当铜经受化学机械平面化(CMP)时,提供与基底上的铜线,层或表面接触的新型组合物溶液。 组合物包括置换金属的反应性阳离子,其悬浮在溶液中并在氧化/还原反应中自发地置换铜中的铜原子。 氧化和置换的铜阳离子被组合物溶液带走,并且铜中新引入的金属原子基本上抑制或阻止铜中铜氧化物的生长。