MEASUREMENT OF FILM THICKNESS ON AN ARBITRARY SUBSTRATE
    6.
    发明申请
    MEASUREMENT OF FILM THICKNESS ON AN ARBITRARY SUBSTRATE 审中-公开
    测量薄膜厚度在基底上

    公开(公告)号:US20150203966A1

    公开(公告)日:2015-07-23

    申请号:US14594446

    申请日:2015-01-12

    Abstract: Embodiments of the present disclosure enable measurement of film properties, such as thickness, using reflectometry regardless of the underlying pattern on the substrate or base layer because the amount of phase shift resulting from the growing film at any wavelength is independent of the substrate or base layer. One embodiment of the method includes determining properties of the substrate from a time series data. Another embodiment of the method includes removing a plasma background for measuring data by making two consecutive measurement with a light source on and off respectively. Another embodiment includes determining a deposition start time by monitoring a plasma marker or a phase shift of optical properties.

    Abstract translation: 本公开的实施例使得可以使用反射测量法来测量膜性质,例如厚度,而不管衬底或基底层上的底层图案如何,因为在任何波长处生长的膜产生的相移量与衬底或基底层无关 。 该方法的一个实施例包括从时间序列数据确定衬底的特性。 该方法的另一实施例包括通过分别用光源进行两次连续测量来移除用于测量数据的等离子体背景。 另一实施例包括通过监测等离子体标记或光学性质的相移来确定沉积开始时间。

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