Film coating apparatus
    2.
    发明申请
    Film coating apparatus 审中-公开
    薄膜包衣机

    公开(公告)号:US20090277379A1

    公开(公告)日:2009-11-12

    申请号:US12311396

    申请日:2007-09-28

    IPC分类号: B05B13/02

    摘要: A gas ejected from a sonic nozzle toward the rear surface of a wafer. The flow speed of the gas flowing to the outer circumference side along the rear surface of the wafer is increased between the rear surface of the wafer and a second cup and is kept by Bernoulli's effects. Thus, flapping of wafer is suppressed. Furthermore, a resist solution is prevented from flowing around to the rear surface.

    摘要翻译: 从声波喷嘴朝向晶片的后表面喷射的气体。 沿着晶片的后表面流动到外周侧的气体的流速在晶片的后表面和第二杯之间增加,并且保持由伯努利的作用。 因此,抑制了晶片的振荡。 此外,防止抗蚀剂溶液流到背面。