Process gas distribution system and method with supervisory control
    4.
    发明授权
    Process gas distribution system and method with supervisory control 失效
    工艺气体分配系统及其监控方法

    公开(公告)号:US5220517A

    公开(公告)日:1993-06-15

    申请号:US576067

    申请日:1990-08-31

    IPC分类号: F17C13/02 F17C13/04 H01L21/00

    摘要: A plurality of gas flow control units in cabinets are connected to distribute process gas, on demand, to a plurality of utilization locations known as "tool" locations in a semi-conductor manufacturing plant. Each gas flow control unit is connected to a single tool interface controller over a single communications cable. The status and operational characteristics of the individual units are communicated through the tool interface controller to a supervisory control computer by means of polling. Each flow control cabinet has its own data processor, and can be operated alone. Also, the supervisory computer can be used to operate each cabinet, as well as to monitor operations of the system. Gas demand and other signals are communicated from each tool location to the control units through a single cable connected to the interface controller, thus reducing the original wiring cost. Changing the communications path to accompany a change of the tool to which a given conduit in one of the cabinets delivers its gas can be done quickly, in software, with a few keystrokes. Mechanical re-wiring is not needed.

    摘要翻译: 连接机柜中的多个气体流量控制单元,以将处理气体根据需要分配到半导体制造工厂中被称为“工具”位置的多个利用位置。 每个气体流量控制单元通过单个通信电缆连接到单个工具接口控制器。 各个单元的状态和操作特性通过工具界面控制器通过轮询方式传送到监控控制计算机。 每个流量控制柜都有自己的数据处理器,可以单独操作。 此外,监控计算机可用于操作每个机柜,以及监视系统的操作。 气体需求和其他信号通过连接到接口控制器的单个电缆从每个工具位置传送到控制单元,从而降低原始接线成本。 改变通信路径以伴随其中一个机柜中的给定导管传送其气体的工具的改变,可以通过软件快速地进行几次击键。 不需要机械重新布线。

    Multiple flashpoint vaporization system
    5.
    发明授权
    Multiple flashpoint vaporization system 失效
    多闪点蒸发系统

    公开(公告)号:US6077480A

    公开(公告)日:2000-06-20

    申请号:US878539

    申请日:1997-06-19

    IPC分类号: A61L2/20 A61L2/24

    摘要: A multiple flashpoint vaporization system rapidly sterilizes large enclosures. A plurality of vaporizers (10) inject hydrogen peroxide vapor into streams of carrier gas supplied by a generator (20). Supply lines (30) transport the mixture of carrier gas and hydrogen peroxide vapor to a plurality of regions of an enclosure (32). Monitors (52) monitor hydrogen peroxide vapor concentration or other conditions in each region of the enclosure. A control system (50) adjusts the hydrogen peroxide vapor supply rate in response to the corresponding monitored conditions.

    摘要翻译: 多个闪点蒸发系统可快速消毒大型外壳。 多个蒸发器(10)将过氧化氢蒸汽注入由发生器(20)供应的载气流中。 供应管线(30)将载气和过氧化氢蒸气的混合物输送到外壳(32)的多个区域。 监视器(52)监视外壳每个区域中的过氧化氢蒸气浓度或其他条件。 控制系统(50)响应于相应的监测条件调节过氧化氢蒸汽供应速率。

    Continuous-operation, closed loop decontamination system and method
    6.
    发明授权
    Continuous-operation, closed loop decontamination system and method 失效
    连续操作,闭环净化系统及方法

    公开(公告)号:US5876664A

    公开(公告)日:1999-03-02

    申请号:US664985

    申请日:1996-06-14

    摘要: The invention provides a method and apparatus for minimizing heat degradation of a vapor decontaminant in a vaporizer by selectively operating a plurality of vaporizer heaters to provide a decreasing heat gradient through the vaporizer. A method and apparatus are also provided for selectively operating a plurality of preheaters, in series, for preheating a carrier gas entering a vaporizer in a flow-through decontamination system, and for maintaining a predetermined carrier gas temperature. A further method and apparatus are provided for fine-tuning chamber pressure in a high flow rate closed-loop flow-through vapor phase decontamination system.

    摘要翻译: 本发明提供了一种用于通过选择性地操作多个蒸发器加热器以减少通过蒸发器的热梯度来最小化汽化器中的蒸气去污剂的热降解的方法和装置。 还提供了一种方法和装置,用于选择性地操作多个串联的预热器,用于预热在流通净化系统中进入蒸发器的载气,并保持预定的载气温度。 提供了一种用于在高流量闭环流通气相净化系统中微调腔室压力的方法和装置。