METHOD AND APPARATUS FOR PRODUCING UNIFORM PROCESS RATES
    11.
    发明申请
    METHOD AND APPARATUS FOR PRODUCING UNIFORM PROCESS RATES 审中-公开
    用于生产统一过程速率的方法和装置

    公开(公告)号:WO0145134A9

    公开(公告)日:2002-11-14

    申请号:PCT/US0042174

    申请日:2000-11-14

    CPC classification number: H01J37/32467 H01J37/321

    Abstract: A plasma processing apparatus for processing a substrate with a plasma is disclosed. The apparatus includes a first RF power source having a first RF frequency, and a process chamber. Further, the apparatus includes a substantially circular antenna operatively coupled to the first RF power source and disposed above a plane defined by the substrate when the substrate is disposed within the process chamber for processing. The substantially circular antenna being configured to induce an electric field inside the process chamber with a first RF energy generated by the first RF power source. The substantially circular antenna including at least a first pair of concentric loops in a first plane and a second pair of concentric loops in a second plane. The first pair of concentric loops and the second pair of concentric loops being substantially identical and symmetrically aligned with one another. The substantially circular antenna forming an azimuthally symmetric plasma inside the process chamber. The apparatus also includes a coupling window disposed between the antenna and the process chamber. The coupling window being configured to allow the passage of the first RF energy from the antenna to the interior of the process chamber. The coupling window having a first layer and a second layer. The second layer being configured to substantially suppress the capacitive coupling formed between the substantially circular antenna and the plasma. The substantially circular antenna and the coupling window working together to produce a substantially uniform process rate across the surface of the substrate.

    Abstract translation: 公开了一种用等离子体处理衬底的等离子体处理装置。 该装置包括具有第一RF频率的第一RF电源和处理室。 此外,该设备包括可操作地耦合到第一RF电源并且当基板设置在处理室内以进行处理时设置在由基板限定的平面之上的基本圆形的天线。 基本上圆形的天线被配置为利用由第一RF电源产生的第一RF能量来诱导处理室内的电场。 基本上圆形的天线包括第一平面中的至少第一对同心环和在第二平面中的第二对同心环。 第一对同心环和第二对同心环彼此基本相同和对称地对准。 大致圆形天线在处理室内形成方位对称等离子体。 该装置还包括设置在天线和处理室之间的耦合窗口。 耦合窗口被配置为允许第一RF能量从天线通过到处理室的内部。 耦合窗具有第一层和第二层。 第二层被配置为基本上抑制形成在基本上圆形的天线和等离子体之间的电容耦合。 基本上圆形的天线和耦合窗口一起工作,以在衬底的表面上产生基本均匀的工艺速率。

    METHOD AND APPARATUS FOR CONTROLLING THE VOLUME OF A PLASMA
    12.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING THE VOLUME OF A PLASMA 审中-公开
    用于控制等离子体积的方法和装置

    公开(公告)号:WO0137311A3

    公开(公告)日:2001-10-11

    申请号:PCT/US0042158

    申请日:2000-11-14

    CPC classification number: H01J37/32623 H01J37/32688

    Abstract: A plasma confinement arrangement for controlling the volume of a plasma while processing a substrate inside a process chamber using a plasma enhanced process is disclosed. The arrangement includes a first magnetic bucket having a plurality of first magnetic elements. The first magnetic elements being configured for producing a first magnetic field inside the process chamber. The arrangement further includes a second magnetic bucket having a plurality of second magnetic elements. The second magnetic elements being configured for producing a second magnetic field inside the process chamber. The second magnetic field being configured to combine with the first magnetic field to produce a resultant magnetic field between the first magnetic bucket and the second magnetic bucket. The resultant magnetic field being configured to permit by-product gas from the processing to pass through while substantially confining the plasma within a volume defined at least by the process chamber and the resultant magnetic field.

    Abstract translation: 公开了一种等离子体限制装置,用于在使用等离子体增强过程处理处理室内的衬底的同时控制等离子体的体积。 该装置包括具有多个第一磁性元件的第一磁性桶。 第一磁性元件被配置用于在处理室内产生第一磁场。 该装置还包括具有多个第二磁性元件的第二磁性桶。 第二磁性元件构造成用于在处理室内产生第二磁场。 第二磁场被配置为与第一磁场组合以在第一磁性铲斗和第二磁性铲斗之间产生合成的磁场。 所得到的磁场被配置为允许来自处理的副产物气体通过,同时基本上将等离子体限制在至少由处理室限定的体积和所得的磁场中。

    METHOD AND APPARATUS FOR PRODUCING UNIFORM PROCESS RATES

    公开(公告)号:WO2001045134A3

    公开(公告)日:2001-06-21

    申请号:PCT/US2000/042174

    申请日:2000-11-14

    Abstract: A plasma processing apparatus for processing a substrate with a plasma is disclosed. The apparatus includes a first RF power source having a first RF frequency, and a process chamber. Further, the apparatus includes a substantially circular antenna operatively coupled to the first RF power source and disposed above a plane defined by the substrate when the substrate is disposed within the process chamber for processing. The substantially circular antenna being configured to induce an electric field inside the process chamber with a first RF energy generated by the first RF power source. The substantially circular antenna including at least a first pair of concentric loops in a first plane and a second pair of concentric loops in a second plane. The first pair of concentric loops and the second pair of concentric loops being substantially identical and symmetrically aligned with one another. The substantially circular antenna forming an azimuthally symmetric plasma inside the process chamber. The apparatus also includes a coupling window disposed between the antenna and the process chamber. The coupling window being configured to allow the passage of the first RF energy from the antenna to the interior of the process chamber. The coupling window having a first layer and a second layer. The second layer being configured to substantially suppress the capacitive coupling formed between the substantially circular antenna and the plasma. The substantially circular antenna and the coupling window working together to produce a substantially uniform process rate across the surface of the substrate.

    APPARATUS FOR REDUCING POLYMER DEPOSITION ON SUBSTRATE SUPPORT
    16.
    发明申请
    APPARATUS FOR REDUCING POLYMER DEPOSITION ON SUBSTRATE SUPPORT 审中-公开
    降低基板支撑聚合物沉积的装置

    公开(公告)号:WO1998014636A1

    公开(公告)日:1998-04-09

    申请号:PCT/US1997017663

    申请日:1997-09-30

    Abstract: In a plasma processing system for processing substrates such as semiconductor wafers, deposition of polymer in an area (30) between a focus ring (16) and an electrostatic chuck (14) in a plasma processing chamber (10) is achieved by providing a clearance gas in a gap between the chuck and the focus ring. A series of channels delivers the clearance gas to the annular gap between the outer surface of the substrate support and the inner surface of the focus ring surrounding the substrate support. The clearance gas supplied to the annular gap is preferably a gas such as helium which will not affect the wafer processing operation. In the case of plasma etching, the clearance gas is supplied at a flow rate which is sufficient to block the migration of process gas and volatile by products thereof into the annular gap without adversely affecting edge etch performance.

    Abstract translation: 在用于处理诸如半导体晶片的衬底的等离子体处理系统中,通过提供等离子体处理室(10)中的聚焦环(16)和静电吸盘(14)之间的区域(30)中的聚合物的沉积, 在卡盘和聚焦环之间的间隙中的气体。 一系列通道将间隙气体传送到衬底支撑件的外表面和围绕衬底支撑件的聚焦环的内表面之间的环形间隙。 提供给环形间隙的间隙气体优选为不影响晶片加工操作的诸如氦气等气体。 在等离子体蚀刻的情况下,间隙气体以足以阻止工艺气体的迁移并由其产物挥发到环形间隙中的流量提供,而不会不利地影响边缘蚀刻性能。

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