Sputtering process and an apparatus for carrying out the same
    4.
    发明授权
    Sputtering process and an apparatus for carrying out the same 失效
    溅射过程和用于进行溅射的设备

    公开(公告)号:US4963239A

    公开(公告)日:1990-10-16

    申请号:US301468

    申请日:1989-01-26

    IPC分类号: C23C14/34 H01J37/34

    摘要: A sputtering process of a substrate biasing system and an apparatus for carrying out the same, capable of forming a film in satisfactory surface coverage over stepped underlying layer. The present invention solves problems in the quality of films formed by the conventional sputtering process of a substrate biasing system by regulating the bias potential of a substrate on which a film is to be formed so that the kinetic energy of ions of a sputtering gas falling on the substrate is varied periodically. The bias potential is regulated by periodically varying the amplitude of the output of a radio frequency (or dc) bias power supply or by changing the duty factor of a voltage pulse stream of the output of the radio frequency (or dc) bias power supply.

    摘要翻译: 衬底偏压系统的溅射工艺和用于执行衬底偏压系统的设备,能够在阶梯式底层上形成令人满意的表面覆盖的膜。 本发明解决了通过调整衬底偏压系统的常规溅射工艺形成的膜的质量的问题,通过调节其上将形成膜的衬底的偏置电位,使得溅射气体的离子的动能落在 基板周期性变化。 通过周期性地改变射频(或直流)偏置电源的输出的幅度或通过改变射频(或直流)偏压电源的输出的电压脉冲流的占空因数来调节偏置电位。