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    • 41. 发明授权
    • Sputtering apparatus and film forming method
    • 溅射装置和成膜方法
    • US06423192B1
    • 2002-07-23
    • US09697442
    • 2000-10-27
    • Junichi WadaHideto MatsuyamaTomio KatataAtsuko SakataKoichi Watanabe
    • Junichi WadaHideto MatsuyamaTomio KatataAtsuko SakataKoichi Watanabe
    • C23C1435
    • C23C14/345C23C14/046C23C14/3457C23C14/35H01J37/32697H01J37/3405H01L21/76877
    • A sputtering apparatus includes a process chamber for accommodating a semiconductor wafer. A susceptor is disposed on the bottom of the interior of the process chamber, and a sputter target is disposed at the top of the process chamber. A cylindrical ion reflecting plate is disposed along the inner wall of the process chamber. A lower grounded component, which forms a path along which electrons are released, is disposed below the ion reflecting plate so as to surround the susceptor. A magnet is disposed behind the target outside the process chamber. Negative potentials are applied to the target and semiconductor wafer, and a positive potential is applied to the ion reflecting plate. The magnet forms a closed magnetic field for trapping electrons in a plasma on the surface of the target, and a divergent magnetic field for directing the electrons in the plasma to the lower grounded component.
    • 溅射装置包括用于容纳半导体晶片的处理室。 感受体设置在处理室内部的底部,并且溅射靶设置在处理室的顶部。 圆柱形离子反射板沿着处理室的内壁设置。 形成电子被释放的路径的下接地部件设置在离子反射板的下方,以围绕基座。 磁体设在处理室外部的目标物后面。 将负电位施加到靶和半导体晶片,并将正电位施加到离子反射板。 磁体形成闭合的磁场,用于捕获目标表面上的等离子体中的电子,以及用于将等离子体中的电子引导到下部接地部件的发散磁场。