LITHOGRAPHY WAVE-FRONT CONTROL SYSTEM AND METHOD
    11.
    发明申请
    LITHOGRAPHY WAVE-FRONT CONTROL SYSTEM AND METHOD 审中-公开
    LITHOGRAPHY波前控制系统和方法

    公开(公告)号:US20140247476A1

    公开(公告)日:2014-09-04

    申请号:US14277323

    申请日:2014-05-14

    Abstract: Some embodiments include system and methods to obtain information for adjusting variations in features formed on a substrate of a semiconductor device. Such methods can include determining a first pupil in an illumination system used to form a first feature, and determining a second pupil used to form a second feature. The methods can also include determining a pupil portion belonging to only one of the pupils, and generating a modified pupil portion from the pupil portion. Information associated with the modified pupil portion can be obtained for controlling a portion of a projection lens assembly of an illumination system. Other embodiments are described.

    Abstract translation: 一些实施例包括用于获得用于调整形成在半导体器件的衬底上的特征的变化的信息的系统和方法。 这样的方法可以包括确定用于形成第一特征的照明系统中的第一光瞳,以及确定用于形成第二特征的第二光瞳。 所述方法还可以包括确定属于仅一个瞳孔的瞳孔部分,并且从瞳孔部分产生修改的瞳孔部分。 可以获得与修改的瞳孔部分相关联的信息,用于控制照明系统的投影透镜组件的一部分。 描述其他实施例。

    Methods of fabricating substrates
    13.
    发明授权

    公开(公告)号:US09653315B2

    公开(公告)日:2017-05-16

    申请号:US14445478

    申请日:2014-07-29

    Abstract: A method of fabricating a substrate includes forming spaced first features over a substrate. An alterable material is deposited over the spaced first features and the alterable material is altered with material from the spaced first features to form altered material on sidewalls of the spaced first features. A first material is deposited over the altered material, and is of some different composition from that of the altered material. The first material is etched to expose the altered material and spaced second features comprising the first material are formed on sidewalls of the altered material. Then, the altered material is etched from between the spaced second features and the spaced first features. The substrate is processed through a mask pattern comprising the spaced first features and the spaced second features. Other embodiments are disclosed.

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