Methods and apparatus for enhanced gas flow rate control
    12.
    发明授权
    Methods and apparatus for enhanced gas flow rate control 有权
    提高气体流量控制的方法和装置

    公开(公告)号:US09004107B2

    公开(公告)日:2015-04-14

    申请号:US13591212

    申请日:2012-08-21

    Abstract: The present invention provides methods and apparatus for controlling gas flow to a semiconductor-processing chamber. The invention includes deactivating ratio setpoint feedback control in a flow ratio controller; initiating gas flow through the flow ratio controller; moving valves of the flow ratio controller to a preset position based on a stored position when an upstream pressure reaches a stored upstream pressure value, wherein the stored position and the stored upstream pressure value were stored during a prior process run; determining that steady state flow ratio controller output flows have been reached; and activating ratio setpoint feedback control in the flow ratio controller. Numerous additional features are disclosed.

    Abstract translation: 本发明提供了用于控制到半导体处理室的气流的方法和装置。 本发明包括流量比控制器中的停用比率设定点反馈控制; 启动气流通过流量比控制器; 当上游压力达到存储的上游压力值时,基于存储位置,将流量比控制器的阀移动到预设位置,其中在先前的处理运行期间存储所存储的位置和存储的上游压力值; 确定稳态流量比控制器输出流量已达到; 和流量比控制器中的启动比设定点反馈控制。 公开了许多附加特征。

    METHODS AND APPARATUS FOR PROCESSING SUBSTRATES USING MODEL-BASED CONTROL
    13.
    发明申请
    METHODS AND APPARATUS FOR PROCESSING SUBSTRATES USING MODEL-BASED CONTROL 有权
    使用基于模型的控制处理基板的方法和装置

    公开(公告)号:US20130018500A1

    公开(公告)日:2013-01-17

    申请号:US13183520

    申请日:2011-07-15

    CPC classification number: G05D16/2046 G05B17/02 H01L21/67017 H01L21/67253

    Abstract: Methods and apparatus are disclosed herein. In some embodiments, methods of controlling process chambers may include predetermining a relationship between pressure in a processing volume and a position of an exhaust valve as a function of a process parameter; setting the process chamber to a first state having a first pressure in the processing volume and a first value of the process parameter, wherein the exhaust valve is set to a first position based on the predetermined relationship to produce the first pressure at the first value; determining a pressure control profile to control the pressure as the process chamber is changed to a second state having a second pressure and a second process parameter value from the first state; and applying the pressure control profile to control the pressure by varying the position of the exhaust valve while changing the process chamber to the second state.

    Abstract translation: 本文公开了方法和装置。 在一些实施例中,控制处理室的方法可以包括根据处理参数预先确定处理容积中的压力与排气门的位置之间的关系; 将所述处理室设定为处理容积中具有第一压力的第一状态和所述处理参数的第一值,其中所述排气阀基于所述预定关系设定在第一位置以产生所述第一值的所述第一压力; 当所述处理室改变为具有来自所述第一状态的第二压力和第二过程参数值的第二状态时,确定压力控制曲线以控制所述压力; 以及通过在将处理室改变到第二状态的同时改变排气门的位置来施加压力控制曲线来控制压力。

    Real time lead-line characterization for MFC flow verification
    14.
    发明授权
    Real time lead-line characterization for MFC flow verification 有权
    MFC流量验证的实时引线特性

    公开(公告)号:US08205629B2

    公开(公告)日:2012-06-26

    申请号:US12427947

    申请日:2009-04-22

    CPC classification number: G01F25/003 G01F25/0038 Y10T137/0324 Y10T137/7759

    Abstract: A method and apparatus that solve the problem of accurate measurement of gas flow so that the delivery of gases in semiconductor processing may be performed with greater confidence and accuracy by performing real-time characterization of a lead-line for mass flow controller (MFC) flow verification are provided. In one embodiment a mass flow verifier (MFV) provides rate of rise information to a controller via a digital interface without correcting for lead-line influences. After receiving the rate of rise data, the tool host computer computes a gas mass correction factor in real-time based on at least one of the following: MFC temperature sensor data, lead-line temperature sensor data, lead-line pressure transducer data, and lead-line volume. The rate of rise data and gas mass correction factor are used to compute accurate mass flow. The accurate mass flow information may be used to calibrate the MFC.

    Abstract translation: 一种解决气体流量精确测量问题的方法和装置,可以通过对质量流量控制器(MFC)流程的引线进行实时表征,以更高的置信度和准确性进行半导体处理中的气体输送 提供验证。 在一个实施例中,质量流量验证器(MFV)通过数字接口向控制器提供上升信息速率,而不会对引线影响进行校正。 在收到上升数据率之后,工具主机基于以下至少一个实时计算气体质量校正因子:MFC温度传感器数据,引线温度传感器数据,引线压力传感器数据, 和引线量。 上升率和气体质量校正因子用于计算精确质量流量。 准确的质量流量信息可用于校准MFC。

    Method and apparatus for dampening pressure fluctuations in a fluid delivery system
    15.
    发明授权
    Method and apparatus for dampening pressure fluctuations in a fluid delivery system 有权
    用于抑制流体输送系统中的压力波动的方法和装置

    公开(公告)号:US08015989B2

    公开(公告)日:2011-09-13

    申请号:US12135857

    申请日:2008-06-09

    Abstract: A method and apparatus are provided for a cost effective pressure dampening device used in a fluid delivery system for substrate processing. In one embodiment, the pressure dampening device is disposed between a mounting substrate and a control valve within a fluid control assembly in fluid communication with a substrate processing chamber. The pressure dampening device is capable of dampening small pressure perturbations in a process fluid which is used for substrate processing.

    Abstract translation: 提供了一种用于在用于衬底处理的流体输送系统中使用的成本有效的压力衰减装置的方法和装置。 在一个实施例中,减压装置设置在流体控制组件内的安装基板和控制阀之间,该流体控制组件与基板处理室流体连通。 减压装置能够抑制用于基板处理的工艺流体中的小压力扰动。

    METHOD AND APPARATUS FOR DAMPENING PRESSURE FLUCTUATIONS IN A FLUID DELIVERY SYSTEM
    16.
    发明申请
    METHOD AND APPARATUS FOR DAMPENING PRESSURE FLUCTUATIONS IN A FLUID DELIVERY SYSTEM 有权
    用于减轻流体输送系统中的压力波动的方法和装置

    公开(公告)号:US20090301567A1

    公开(公告)日:2009-12-10

    申请号:US12135857

    申请日:2008-06-09

    Abstract: A method and apparatus are provided for a cost effective pressure dampening device used in a fluid delivery system for substrate processing. In one embodiment, the pressure dampening device is disposed between a mounting substrate and a control valve within a fluid control assembly in fluid communication with a substrate processing chamber. The pressure dampening device is capable of dampening small pressure perturbations in a process fluid which is used for substrate processing.

    Abstract translation: 提供了一种用于在用于衬底处理的流体输送系统中使用的成本有效的压力衰减装置的方法和装置。 在一个实施例中,减压装置设置在流体控制组件内的安装基板和控制阀之间,该流体控制组件与基板处理室流体连通。 减压装置能够抑制用于基板处理的工艺流体中的小压力扰动。

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