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    • 3. 发明公开
    • Trap apparatus and trap system
    • Falle und Fallensystem
    • EP1914423A2
    • 2008-04-23
    • EP08002135.5
    • 1999-01-21
    • EBARA CORPORATION
    • Nomura, NorihikoNoji, Nobuharu
    • F04B37/16F04B37/08
    • F04B37/16B01D45/08F04B37/08
    • The present invention provides a trap apparatus which is capable of increasing the trapping efficiency while fulfilling a conductance allowed by a vacuum chamber in a depositing process or the like, for thereby increasing the service life of a vacuum pump and protecting a toxic substance removing device for increased operation reliability, and reducing equipment and running costs. The trap apparatus has a trap unit (18) disposed in a discharge passage (14) for discharging therethrough a gas from a vacuum chamber (10) with a vacuum pump (12) for trapping and removing a product in a discharged gas. The trap unit (18) has trap passages comprising an upstream passage portion (44) spreading outwardly from the center and a downstream passage portion (42) directed inwardly toward the center.
    • 本发明提供一种捕集装置,其能够在沉积过程等中实现真空室允许的导电性的同时提高捕集效率,从而提高真空泵的使用寿命并保护有毒物质去除装置 提高运行可靠性,降低设备运行成本。 捕集装置具有设置在排出通道(14)中的捕集单元(18),用于通过真空室(10)从真空室(10)中排出气体,用于在排放气体中捕获和去除产物。 捕集器(18)具有捕集通道,该通道包括从中心向外展开的上游通道部分(44)和向内朝向中心的下游通道部分(42)。
    • 6. 发明公开
    • Regeneration of a cryopump
    • 低温泵的再生
    • EP0919722A2
    • 1999-06-02
    • EP99104588.1
    • 1995-04-26
    • EBARA CORPORATION
    • Noji, NobuharuHayakawa, JunichiSatoh, MotoyasuAono, HiroshiKomai, Tetsuo
    • F04B37/08
    • F04B37/08F04B37/085F04B49/065F04B2205/01F04B2205/10Y10S417/901
    • A cryopump is provided with a detecting means for detecting an operation parameter at an elapsed operation time in a current operation cycle of the cryopump, a storing means for storing a value of another operation parameter in a past operation cycle of the cryopump as a management parameter, an arithmetic controlling means for calculating a succeeding rotational speed of the expander motor based on the current operational parameter and the management parameter stored in the storing means and outputting the same as a driving instruction signal, with which the succeeding rotational speed of the expander motor is controlled so as to maintain a temperature of a cryopanel or a pressure in a vacuum chamber to which the cryopump is attached at a predetermined value by using the operation parameter at the elapsed operation time in the current operation cycle of the cryopump detected by the detecting means and the operation parameter at the corresponding elapsed operation time in the past operation cycle of the cryopump stored in the storing means as the management parameter, and an expander motor driving means for driving the expander motor according to the driving instruction signal output from the arithmetic controlling means, whereby the cryopump may be operated stably even if a temporal load change has occurred.