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    • 34. 发明授权
    • Method of and apparatus for purifying reduced pressure process chambers
    • 减压处理室的净化方法及装置
    • US6135460A
    • 2000-10-24
    • US124799
    • 1998-07-29
    • Rick L. WiseMichael A. Kasner
    • Rick L. WiseMichael A. Kasner
    • B01D53/04C09K3/10H01L21/00
    • H01L21/67017B01D53/04C09K3/10B01D2253/202B01D2258/0216Y10S277/913Y10S277/918
    • Gas purification resins are encapsulated in deformable, permeable polymer sheaths to form purification rings, gaskets or seals. A primary source of contaminants in advanced vacuum processors equipped with vacuum load-lock systems and process gas purifiers is from the leakage of outside ambient contaminants around O-ring seals. Using gas purification rings, gaskets or seals properly placed inside or outside of the outer O-ring seal, the level of contaminants (particularly hydrocarbons, oxygen and moisture) may be significantly reduced or eliminated. The gas purification ring is preferably a hydrocarbon and/or oxygen and/or moisture absorbing and/or adsorbing material encased within a contaminant permeable casing. The gas purification ring can be round or flattened and is preferably more resilient than the O-rings adjacent thereto which form the seal. An adhesive can be placed around the casing holding the purification resin to prevent movement from its purifying location.
    • 气体净化树脂被封装在可变形的可渗透的聚合物护套中以形成净化环,垫圈或密封件。 配备真空负载锁定系统和工艺气体净化器的先进真空处理器中的主要污染源是O型圈密封件周围外部污染物的泄漏。 使用气体净化环,垫圈或密封圈适当地放置在外部O形圈密封件的内部或外部,污染物(特别是碳氢化合物,氧气和水分)的水平可能会显着降低或消除。 气体净化环优选为包封在可渗透污染的外壳内的烃类和/或氧气和/或吸湿材料和/或吸附材料。 气体净化环可以是圆形或扁平的,并且优选地比形成密封件的与其相邻的O形环更有弹性。 粘合剂可以放置在保持净化树脂的外壳周围,以防止从其净化位置移动。