公开(公告)号：US20060144703A1

公开(公告)日：2006-07-06

申请号：US11029641

申请日：2005-01-05

申请人： Hong Yang ,  Tza-Jing Gung ,  Jian-Xin Lei ,  Ted Guo

发明人： Hong Yang ,  Tza-Jing Gung ,  Jian-Xin Lei ,  Ted Guo

IPC分类号： C23C14/00

CPC分类号： H01J37/3408 ,  H01J37/3405

摘要： A multi-track magnetron having a convolute shape and asymmetric about the target center about which it rotates. A plasma track is formed as a closed loop between opposed inner and outer magnetic poles, preferably as two or three radially arranged and spirally shaped counter-propagating tracks with respect to the target center and preferably passing over the rotation axis. The pole shape may be optimized to produce a cumulative track length distribution conforming to the function L=arn. After several iterations of computerized optimization, the pole shape may be tested for sputtering uniformity with different distributions of magnets in the fabricated pole pieces. If the uniformity remains unsatisfactory, the design iteration is repeated with a different n value, different number of tracks, or different pole widths. The optimization reduces azimuthal sidewall asymmetry and improves radial deposition uniformity.

摘要翻译： 具有卷绕形状且围绕其旋转的目标中心不对称的多轨磁控管。 等离子体轨道形成为相对的内部和外部磁极之间的闭合回路，优选地相对于目标中心并且优选地通过旋转轴线而形成为两个或三个径向布置且螺旋形的反向传播轨迹。 极点形状可以被优化以产生符合函数L = ar 的累积轨迹长度分布。 经过数次迭代的计算机化优化，可以测试极点形状，使其在制造的极片中具有不同的磁体分布的溅射均匀性。 如果均匀性不能令人满意，则使用不同的n值，不同数量的轨道或不同的极宽重复设计迭代。 优化可减少方位角侧壁不对称性，提高径向沉积均匀性。

公开(公告)号：US07186319B2

公开(公告)日：2007-03-06

申请号：US11029641

申请日：2005-01-05

申请人： Hong S. Yang ,  Tza-Jing Gung ,  Jian-Xin Lei ,  Ted Guo

发明人： Hong S. Yang ,  Tza-Jing Gung ,  Jian-Xin Lei ,  Ted Guo

IPC分类号： C23C14/35

CPC分类号： H01J37/3408 ,  H01J37/3405

摘要： A multi-track magnetron having a convolute shape and asymmetric about the target center about which it rotates. A plasma track is formed as a closed loop between opposed inner and outer magnetic poles, preferably as two or three radially arranged and spirally shaped counter-propagating tracks with respect to the target center and preferably passing over the rotation axis. The pole shape may be optimized to produce a cumulative track length distribution conforming to the function L=arn. After several iterations of computerized optimization, the pole shape may be tested for sputtering uniformity with different distributions of magnets in the fabricated pole pieces. If the uniformity remains unsatisfactory, the design iteration is repeated with a different n value, different number of tracks, or different pole widths. The optimization reduces azimuthal sidewall asymmetry and improves radial deposition uniformity.

摘要翻译： 具有卷绕形状且围绕其旋转的目标中心不对称的多轨磁控管。 等离子体轨道形成为相对的内部和外部磁极之间的闭合回路，优选地相对于目标中心并且优选地通过旋转轴线而形成为两个或三个径向布置且螺旋形的反向传播轨迹。 极点形状可以被优化以产生符合函数L = ar 的累积轨迹长度分布。 经过数次迭代的计算机化优化，可以测试极点形状，使其在制造的极片中具有不同的磁体分布的溅射均匀性。 如果均匀性不能令人满意，则使用不同的n值，不同数量的轨道或不同的极宽重复设计迭代。 优化可减少方位角侧壁不对称性，提高径向沉积均匀性。

公开(公告)号：US20060076232A1

公开(公告)日：2006-04-13

申请号：US11226858

申请日：2005-09-14

申请人： Keith Miller ,  Anantha Subramani ,  Maurice Ewert ,  Tza-Jing Gung ,  Hong Yang ,  Vincent Burkhart

发明人： Keith Miller ,  Anantha Subramani ,  Maurice Ewert ,  Tza-Jing Gung ,  Hong Yang ,  Vincent Burkhart

IPC分类号： C23C14/00 ,  C23C14/32

CPC分类号： H01J37/3455 ,  C23C14/35 ,  H01J37/3408

摘要： A continuously variable multi-position magnetron that is rotated about a central axis in back of a sputtering target at a freely selected radius. The position is dynamically controlled from the outside, for example, through a hydraulic actuator connected between a pivoting arm supporting the magnetron and an arm fixed to the shaft, by two coaxial shafts independent controllable from the outside and supporting the magnetron through a frog-leg mechanism, or a cable connected between the pivoting arms and moved by an external slider. The magnetron can be rotated at two, three, or more discrete radii or be moved in a continuous spiral pattern.

摘要翻译： 一种连续可变的多位磁控管，其以可自由选择的半径在溅射靶的背面绕中心轴旋转。 该位置从外部动态地控制，例如通过连接在支撑磁控管的枢转臂和固定到轴的臂之间的液压致动器，通过两个独立可从外部控制的同轴轴并且通过青蛙支撑磁控管 机构或连接在枢转臂之间并由外部滑块移动的电缆。 磁控管可以以两个，三个或更多个离散的半径旋转或以连续的螺旋图案移动。

公开(公告)号：US20080083610A1

公开(公告)日：2008-04-10

申请号：US11689720

申请日：2007-03-22

申请人： Xianmin Tang ,  Hua Chung ,  Rongjun Wang ,  Tza-Jing Gung ,  Praburam Gopalraja ,  Jick Yu ,  Hong Yang

发明人： Xianmin Tang ,  Hua Chung ,  Rongjun Wang ,  Tza-Jing Gung ,  Praburam Gopalraja ,  Jick Yu ,  Hong Yang

IPC分类号： C23C14/35

CPC分类号： C23C14/0641 ,  C23C14/345 ,  C23C14/35 ,  H01J37/3408 ,  H01J37/3455

摘要： A plasma sputter chamber and process for sputtering ruthenium and tantalum at low pressure or with self-sustained sputtering (SSS). The source magnetron is strongly unbalanced and of sufficient size to project the unbalanced magnetic field toward the wafer to increase the ionization probability. Sputter etch uniformity is increased by the use of an auxiliary magnet system rotating with the source magnetron but placed towards the center of rotation. It may be a larger, nearly balanced auxiliary magnetron with an outer polarity matching that of the source magnetron or an array of magnets of that polarity. An integrated process includes a directional deposition of the refractory metal and its nitride, a sputter etch, and a flash deposition.

摘要翻译： 一种等离子体溅射室和用于在低压或自持溅射（SSS）下溅射钌和钽的工艺。 源极磁控管是非常不平衡的，并且具有足够的尺寸以将不平衡磁场投射到晶片以增加电离概率。 通过使用与源磁控管一起旋转但是朝向旋转中心放置的辅助磁体系统来增加溅射蚀刻均匀性。 它可以是较大的，几乎平衡的辅助磁控管，其外极性与源极磁控管或该极性的磁体阵列的极性匹配。 集成工艺包括难熔金属及其氮化物的定向沉积，溅射蚀刻和闪蒸沉积。

公开(公告)号：US08557094B2

公开(公告)日：2013-10-15

申请号：US11689720

申请日：2007-03-22

申请人： Xianmin Tang ,  Hua Chung ,  Rongjun Wang ,  Tza-Jing Gung ,  Praburam Gopalraja ,  Jick Yu ,  Hong Yang

发明人： Xianmin Tang ,  Hua Chung ,  Rongjun Wang ,  Tza-Jing Gung ,  Praburam Gopalraja ,  Jick Yu ,  Hong Yang

IPC分类号： C23C14/34

CPC分类号： C23C14/0641 ,  C23C14/345 ,  C23C14/35 ,  H01J37/3408 ,  H01J37/3455

摘要： A plasma sputter chamber and process for sputtering ruthenium and tantalum at low pressure or with self-sustained sputtering (SSS). The source magnetron is strongly unbalanced and of sufficient size to project the unbalanced magnetic field toward the wafer to increase the ionization probability. Sputter etch uniformity is increased by the use of an auxiliary magnet system rotating with the source magnetron but placed towards the center of rotation. It may be a larger, nearly balanced auxiliary magnetron with an outer polarity matching that of the source magnetron or an array of magnets of that polarity. An integrated process includes a directional deposition of the refractory metal and its nitride, a sputter etch, and a flash deposition.

摘要翻译： 一种等离子体溅射室和用于在低压或自持溅射（SSS）下溅射钌和钽的工艺。 源极磁控管是非常不平衡的，并且具有足够的尺寸以将不平衡磁场投射到晶片以增加电离概率。 通过使用与源磁控管一起旋转但是朝向旋转中心放置的辅助磁体系统来增加溅射蚀刻均匀性。 它可以是较大的，几乎平衡的辅助磁控管，其外极性与源极磁控管或该极性的磁体阵列的极性匹配。 集成工艺包括难熔金属及其氮化物的定向沉积，溅射蚀刻和闪蒸沉积。

公开(公告)号：US20050211548A1

公开(公告)日：2005-09-29

申请号：US10949735

申请日：2004-09-23

申请人： Tza-Jing Gung ,  Hong Yang ,  Anantha Subramani ,  Maurice Ewert ,  Keith Miller ,  Vincent Burkhart

发明人： Tza-Jing Gung ,  Hong Yang ,  Anantha Subramani ,  Maurice Ewert ,  Keith Miller ,  Vincent Burkhart

IPC分类号： C23C14/35 ,  H01J37/34

CPC分类号： H01J37/3455 ,  C23C14/35 ,  H01J37/3408

摘要： A dual-position magnetron that is rotated about a central axis in back of a sputtering target, particularly for sputtering an edge of a target of a barrier material onto a wafer and cleaning material redeposited at a center of the target. During target cleaning, wafer bias is reduced. In one embodiment, an arc-shaped magnetron is supported on a pivot arm pivoting on the end of a bracket fixed to the rotary shaft. A spring biases the pivot arm such that the magnetron is urged towards and overlies the target center. Centrifugal force at increased rotation rate overcomes the spring bias and shift the magnetron to an outer position with the long magnetron dimension aligned with the target edge. Mechanical stops prevent excessive movement in either direction. Other mechanisms include linear slides and actuators.

摘要翻译： 一种双位磁控管，其围绕溅射靶的背面的中心轴旋转，特别是用于将阻挡材料的靶的边缘溅射到晶片上，并且清理物质再沉积在靶的中心。 在目标清洁期间，晶片偏置减小。 在一个实施例中，弧形磁控管被支撑在枢转臂上，枢转臂在固定到旋转轴的支架的端部上枢转。 弹簧偏压枢转臂，使得磁控管被推向目标中心并覆盖在目标中心上方。 提高旋转速度的离心力克服了弹簧偏压，并将磁控管移动到外部位置，长磁导管尺寸与目标边缘对齐。 机械停止可防止任何方向上的过度运动。 其他机构包括线性滑块和致动器。

公开(公告)号：US08871064B2

公开(公告)日：2014-10-28

申请号：US12695643

申请日：2010-01-28

申请人： Tza-Jing Gung ,  Xinyu Fu ,  Arvind Sundarrajan ,  Edward P. Hammond, IV ,  Praburam Gopalraja ,  John C. Forster ,  Mark A. Perrin ,  Andrew S. Gillard

发明人： Tza-Jing Gung ,  Xinyu Fu ,  Arvind Sundarrajan ,  Edward P. Hammond, IV ,  Praburam Gopalraja ,  John C. Forster ,  Mark A. Perrin ,  Andrew S. Gillard

IPC分类号： C23C14/34 ,  H01J37/32 ,  C23C14/35 ,  C23C14/04 ,  H01L21/768 ,  H01J37/34 ,  C23C14/16 ,  H01L21/285 ,  C23F4/00 ,  C23C14/06

CPC分类号： H01J37/3266 ,  C23C14/046 ,  C23C14/0641 ,  C23C14/165 ,  C23C14/358 ,  C23F4/00 ,  H01J37/321 ,  H01J37/32623 ,  H01J37/32688 ,  H01J37/3408 ,  H01L21/2855 ,  H01L21/76844 ,  H01L21/76846 ,  H01L21/76865

摘要： A multi-step process performed in a plasma sputter chamber including sputter deposition from the target and argon sputter etching of the substrate. The chamber includes a quadruple electromagnetic coil array coaxially arranged in a rectangular array about a chamber axis outside the sidewalls of a plasma sputter reactor in back of an RF coil within the chamber. The coil currents can be separately controlled to produce different magnetic field distributions, for example, between a sputter deposition mode in which the sputter target is powered to sputter target material onto a wafer and a sputter etch mode in which the RF coil supports the argon sputtering plasma. A TaN/Ta barrier is first sputter deposited with high target power and wafer bias. Argon etching is performed with even higher wafer bias. A flash step is applied with reduced target power and wafer bias.

摘要翻译： 在等离子体溅射室中执行的包括从靶的溅射沉积和对衬底的氩溅射蚀刻的多步骤过程。 该腔室包括一个四重电磁线圈阵列，该四极电磁线圈阵列围绕室内RF射频线圈背面的等离子体溅射反应器的侧壁外的腔室轴线同轴地布置。 可以单独控制线圈电流以产生不同的磁场分布，例如在其中溅射靶被驱动以将靶材料溅射到晶片上的溅射沉积模式和其中RF线圈支撑氩溅射的溅射蚀刻模式之间 等离子体。 首先以高目标功率和晶片偏置溅射沉积TaN / Ta势垒。 以更高的晶片偏压进行氩蚀刻。 应用闪光步骤，降低目标功率和晶片偏置。

公开(公告)号：US20100252416A1

公开(公告)日：2010-10-07

申请号：US12723199

申请日：2010-03-12

申请人： Zhendong Liu ,  Rongjun Wang ,  Xianmin Tang ,  Srinivas Gandikota ,  Tza-Jing Gung ,  Muhammad M. Rasheed

发明人： Zhendong Liu ,  Rongjun Wang ,  Xianmin Tang ,  Srinivas Gandikota ,  Tza-Jing Gung ,  Muhammad M. Rasheed

IPC分类号： C23C14/34

CPC分类号： C23C14/3407 ,  H01J37/342 ,  H01J37/3423

摘要： Target assemblies and PVD chambers including target assemblies are disclosed. The target assembly includes a target that has a concave shaped target. When used in a PVD chamber, the concave target provides more radially uniform deposition on a substrate disposed in the sputtering chamber.

摘要翻译： 公开了包括目标组件的目标组件和PVD室。 目标组件包括具有凹形目标的目标。 当在PVD室中使用时，凹目标在设置在溅射室中的基板上提供更径向均匀的沉积。

公开(公告)号：US20080190760A1

公开(公告)日：2008-08-14

申请号：US11838796

申请日：2007-08-14

申请人： XIANMIN TANG ,  Arvind Sundarrajan ,  Daniel Lubben ,  Qian Luo ,  Tza-Jing Gung ,  Anantha Subramani ,  Hua Chung ,  Xinyu Fu ,  Rongjun Wang ,  Yong Cao ,  Jick Yu ,  John Forster ,  Praburam Gopalraja

发明人： XIANMIN TANG ,  Arvind Sundarrajan ,  Daniel Lubben ,  Qian Luo ,  Tza-Jing Gung ,  Anantha Subramani ,  Hua Chung ,  Xinyu Fu ,  Rongjun Wang ,  Yong Cao ,  Jick Yu ,  John Forster ,  Praburam Gopalraja

IPC分类号： C23C14/32

CPC分类号： C23C14/165 ,  C23C14/046 ,  C23C14/358 ,  C23C14/5826 ,  C23C14/584 ,  H01J37/3408 ,  H01J37/3455 ,  H01L21/2855 ,  H01L21/76865 ,  H01L21/76873 ,  H01L21/76877

摘要： An integrated copper deposition process, particularly useful for forming a copper seed layer in a narrow via prior to electrochemical plating of copper, including at least one cycle of sputter deposition of copper followed by sputter etching of the deposited copper, preferably performed in a same sputter chamber. The deposition is performed under conditions promoting high copper ionization fractions and strong wafer biasing to draw the copper ions into the via. The etching may be done with argon ions, preferably inductively excited by an RF coil around the chamber, or by copper ions, which may be formed with high target power and intense magnetron or by use of the RF coil. Two or more cycles of deposition/etch may be performed. A final flash deposition may be performed with high copper ionization and low wafer biasing.

摘要翻译： 一种集成的铜沉积工艺，特别适用于在铜的电化学电镀之前在窄通孔中形成铜籽晶层，包括至少一个铜的溅射沉积循环，然后溅射蚀刻沉积的铜，优选在相同的溅射 房间。 沉积在促进高铜离子化分数和强晶片偏置的条件下进行以将铜离子吸入通孔。 蚀刻可以用氩离子进行，优选地通过围绕室的RF线圈进行感应激励，或者通过可以用高目标功率和强磁控管形成的铜离子或通过使用RF线圈进行。 可以执行两个或更多个沉积/蚀刻循环。 最终的闪蒸沉积可以用高铜离子化和低晶片偏压进行。

公开(公告)号：US20150155193A1

公开(公告)日：2015-06-04

申请号：US14094601

申请日：2013-12-02

申请人： Chih-Hsun Hsu ,  Tza-Jing Gung ,  Benjamin Schwarz ,  Shahid Rauf ,  Ankur Agarwal ,  Vijay D. Parkhe ,  Michael D. Willwerth ,  Zhiqiang Guo

发明人： Chih-Hsun Hsu ,  Tza-Jing Gung ,  Benjamin Schwarz ,  Shahid Rauf ,  Ankur Agarwal ,  Vijay D. Parkhe ,  Michael D. Willwerth ,  Zhiqiang Guo

IPC分类号： H01L21/683 ,  H01L21/67

CPC分类号： H01L21/6833 ,  H01J37/3266 ,  H01J37/32715

摘要： Electrostatic chucks with variable pixelated magnetic field are described. For example, an electrostatic chuck (ESC) includes a ceramic plate having a front surface and a back surface, the front surface for supporting a wafer or substrate. A base is coupled to the back surface of the ceramic plate. A plurality of electromagnets is disposed in the base, the plurality of electromagnets configured to provide pixelated magnetic field tuning capability for the ESC.

摘要翻译： 描述了具有可变像素化磁场的静电卡盘。 例如，静电卡盘（ESC）包括具有前表面和后表面的陶瓷板，前表面用于支撑晶片或基板。 基座耦合到陶瓷板的背面。 多个电磁铁设置在基座中，多个电磁铁构造成为ESC提供像素化的磁场调谐能力。