POSITION CONTROLLED DUAL MAGNETRON
    1.
    发明申请
    POSITION CONTROLLED DUAL MAGNETRON 有权
    位置控制双磁铁

    公开(公告)号:US20080099329A1

    公开(公告)日:2008-05-01

    申请号:US11553880

    申请日:2006-10-27

    IPC分类号: C23C14/00

    摘要: A dual magnetron for plasma sputtering including a source magnetron and an auxiliary magnetron, each of which rotate about the center of the target at respective radii. The positions of the magnetron can be moved in complementary radial directions between sputter deposition and target cleaning. The magnetrons have different characteristics of size, strength, and imbalance. The source magnetron is smaller, stronger, and unbalanced source magnetron and is positioned near the edge of the wafer in sputter deposition and etching. The auxiliary magnetron is larger, weak, and more balanced and used for cleaning the center of the target and guiding sputter ions from the source magnetron in sputter deposition. Each magnetron may have its plasma shorted out in its radially outer position.

    摘要翻译: 一种用于等离子体溅射的双磁控管,包括源磁控管和辅助磁控管,每个磁控管以相应的半径围绕靶的中心旋转。 磁控管的位置可以在溅射沉积和目标清洁之间沿互补的径向移动。 磁控管具有不同的尺寸,强度和不平衡特性。 源极磁控管是较小,较强和不平衡的源磁控管,并且在溅射沉积和蚀刻中位于晶片边缘附近。 辅助磁控管较大,弱且更均衡,用于清洁靶的中心并在溅射沉积中引导来自源磁控管的溅射离子。 每个磁控管可以使其等离子体在其径向外部位置短路。

    Position controlled dual magnetron
    2.
    发明授权
    Position controlled dual magnetron 有权
    位置控制双磁控管

    公开(公告)号:US07767064B2

    公开(公告)日:2010-08-03

    申请号:US11553880

    申请日:2006-10-27

    IPC分类号: C23C14/00

    摘要: A dual magnetron for plasma sputtering including a source magnetron and an auxiliary magnetron, each of which rotate about the center of the target at respective radii. The positions of the magnetron can be moved in complementary radial directions between sputter deposition and target cleaning. The magnetrons have different characteristics of size, strength, and imbalance. The source magnetron is smaller, stronger, and unbalanced source magnetron and is positioned near the edge of the wafer in sputter deposition and etching. The auxiliary magnetron is larger, weak, and more balanced and used for cleaning the center of the target and guiding sputter ions from the source magnetron in sputter deposition. Each magnetron may have its plasma shorted out in its radially outer position.

    摘要翻译: 一种用于等离子体溅射的双磁控管,包括源磁控管和辅助磁控管,每个磁控管以相应的半径围绕靶的中心旋转。 磁控管的位置可以在溅射沉积和目标清洁之间沿互补的径向移动。 磁控管具有不同的尺寸,强度和不平衡特性。 源极磁控管是较小,较强和不平衡的源磁控管,并且在溅射沉积和蚀刻中位于晶片边缘附近。 辅助磁控管较大,弱且更均衡,用于清洁靶的中心并在溅射沉积中引导来自源磁控管的溅射离子。 每个磁控管可以使其等离子体在其径向外部位置短路。

    Methods of forming layers on substrates
    4.
    发明授权
    Methods of forming layers on substrates 有权
    在基材上形成层的方法

    公开(公告)号:US08476162B2

    公开(公告)日:2013-07-02

    申请号:US13269243

    申请日:2011-10-07

    IPC分类号: H01L21/44

    摘要: Methods for forming layers on a substrate are provided herein. In some embodiments, methods of forming layers on a substrate disposed in a process chamber may include depositing a barrier layer comprising titanium within one or more features in the substrate; and sputtering a material from a target in the presence of a plasma formed from a process gas by applying a DC power to the target, maintaining a pressure of less than about 500 mTorr within the process chamber, and providing up to about 5000 W of a substrate bias RF power to deposit a seed layer comprising the material atop the barrier layer.

    摘要翻译: 本文提供了在基板上形成层的方法。 在一些实施例中,在设置在处理室中的衬底上形成层的方法可以包括在衬底的一个或多个特征内沉积包含钛的阻挡层; 在通过向目标施加DC电力的情况下,在由处理气体形成的等离子体存在下溅射材料,在处理室内保持小于约500mTorr的压力,并提供高达约5000W的 衬底偏置射频功率以在阻挡层顶上沉积包含该材料的晶种层。

    Multi-track magnetron exhibiting more uniform deposition and reduced rotational asymmetry
    5.
    发明授权
    Multi-track magnetron exhibiting more uniform deposition and reduced rotational asymmetry 有权
    多轨磁控管具有更均匀的沉积和减小的旋转不对称性

    公开(公告)号:US07186319B2

    公开(公告)日:2007-03-06

    申请号:US11029641

    申请日:2005-01-05

    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。

    Magnetron having continuously variable radial position
    6.
    发明授权
    Magnetron having continuously variable radial position 有权
    磁控管具有连续可变的径向位置

    公开(公告)号:US07736473B2

    公开(公告)日:2010-06-15

    申请号:US11226858

    申请日:2005-09-14

    IPC分类号: C23C14/35

    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。

    Mechanism for continuously varying radial position of a magnetron
    7.
    发明授权
    Mechanism for continuously varying radial position of a magnetron 有权
    连续变化磁控管径向位置的机理

    公开(公告)号:US08685215B2

    公开(公告)日:2014-04-01

    申请号:US12794452

    申请日:2010-06-04

    IPC分类号: C23C14/35

    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。

    Selectable dual position magnetron
    8.
    发明授权
    Selectable dual position magnetron 有权
    可选双位磁控管

    公开(公告)号:US07018515B2

    公开(公告)日:2006-03-28

    申请号:US10949735

    申请日:2004-09-23

    IPC分类号: C23C14/35

    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。