Method for a lithographic apparatus

    公开(公告)号:US10331042B2

    公开(公告)日:2019-06-25

    申请号:US15271947

    申请日:2016-09-21

    Abstract: A method is described that includes illuminating a patterning device pattern with a radiation beam having a symmetric illumination mode, the patterning device pattern comprising a first pattern feature that substantially diffracts radiation of the radiation beam, and a second pattern feature that does not substantially diffract radiation of the radiation beam, introducing an asymmetry, relative to an optical axis, in the substantially diffracted radiation using a phase modulation element, illuminating a radiation beam receiving element with radiation emanating from the phase modulation element to form a receiving element pattern that is related to the patterning device pattern, the receiving element pattern having first and second receiving element pattern features related to the first and second pattern features respectively, and determining information at least indicative of a focal property from positional information regarding the relative positions of the first and second receiving element pattern features.

    METHODS OF PROVIDING PATTERNED TEMPLATES FOR SELF-ASSEMBLABLE BLOCK COPOLYMERS FOR USE IN DEVICE LITHOGRAPHY
    3.
    发明申请
    METHODS OF PROVIDING PATTERNED TEMPLATES FOR SELF-ASSEMBLABLE BLOCK COPOLYMERS FOR USE IN DEVICE LITHOGRAPHY 有权
    提供用于自组装块式共聚物的图案模式的方法用于器件平台的使用

    公开(公告)号:US20150034594A1

    公开(公告)日:2015-02-05

    申请号:US14385047

    申请日:2013-03-06

    Abstract: A method is disclosed to form a patterned template on a substrate, to direct orientation of a self-assemblable block copolymer. The method involves providing a resist layer of a positive tone resist on the substrate and overexposing the resist with actinic (e.g. UV) radiation by photolithography to expose a continuous region of the resist layer with a sub-resolution unexposed resist portion at the interface between the resist and the substrate. The resist portion remaining at the interface, after removal of the exposed region, provides a basis for a chemical epitaxy template. The method may allow for simple, direct photolithography to form a patterned chemical epitaxy template and optionally include an accurately co-aligned graphoepitaxy feature and/or a substrate alignment feature.

    Abstract translation: 公开了一种在基底上形成图案化模板以引导自组装嵌段共聚物的取向的方法。 该方法包括在衬底上提供正色调抗蚀剂的抗蚀剂层,并通过光刻法用光化(例如UV)辐射过度曝光抗蚀剂,以在抗蚀剂层的连接区域之间的界面处暴露抗蚀剂层的亚分辨率未曝光抗蚀剂部分 抗蚀剂和基材。 在除去暴露区域之后残留在界面处的抗蚀剂部分为化学外延模板提供了基础。 该方法可以允许简单的直接光刻以形成图案化的化学外延模板,并且可选地包括精确地共同对准的图案电子特征和/或衬底对准特征。

    Patterning stack optimization
    4.
    发明授权

    公开(公告)号:US10775705B2

    公开(公告)日:2020-09-15

    申请号:US16325228

    申请日:2017-08-02

    Abstract: A method of tuning a patterning stack, the method including: defining a function that measures how a parameter representing a physical characteristic pertaining to a pattern transferred into a patterning stack on a substrate is affected by change in a patterning stack variable, the patterning stack variable representing a physical characteristic of a material layer of the patterning stack; varying, by a hardware computer system, the patterning stack variable and evaluating, by the hardware computer system, the function with respect to the varied patterning stack variable, until a termination condition is satisfied; and outputting a value of the patterning stack variable when the termination condition is satisfied.

    METHOD FOR A LITHOGRAPHIC APPARATUS
    5.
    发明申请
    METHOD FOR A LITHOGRAPHIC APPARATUS 审中-公开
    一种平面设备的方法

    公开(公告)号:US20170010542A1

    公开(公告)日:2017-01-12

    申请号:US15271947

    申请日:2016-09-21

    Abstract: A method is described that includes illuminating a patterning device pattern with a radiation beam having a symmetric illumination mode, the patterning device pattern comprising a first pattern feature that substantially diffracts radiation of the radiation beam, and a second pattern feature that does not substantially diffract radiation of the radiation beam, introducing an asymmetry, relative to an optical axis, in the substantially diffracted radiation using a phase modulation element, illuminating a radiation beam receiving element with radiation emanating from the phase modulation element to form a receiving element pattern that is related to the patterning device pattern, the receiving element pattern having first and second receiving element pattern features related to the first and second pattern features respectively, and determining information at least indicative of a focal property from positional information regarding the relative positions of the first and second receiving element pattern features.

    Abstract translation: 描述了一种方法,其包括用具有对称照明模式的辐射束照射图案形成装置图案,图案形成装置图案包括基本上衍射辐射束的辐射的第一图案特征,以及基本上不辐射辐射的第二图案特征 使用相位调制元件在基本上衍射的辐射中引入相对于光轴的不对称性,用相位调制元件发射的辐射照射辐射束接收元件,以形成与 图案形成装置图案,接收元件图案具有分别与第一和第二图案特征相关的第一和第二接收元件图案特征,以及根据关于第一和第二图案特征的相对位置的位置信息来确定至少指示焦点特性的信息 g元素图案特征。

    Lithographic mask, lithographic apparatus and method

    公开(公告)号:US09513109B2

    公开(公告)日:2016-12-06

    申请号:US14608011

    申请日:2015-01-28

    CPC classification number: G01B11/06 G03F1/38

    Abstract: A lithographic mask has a substrate substantially transmissive for radiation of a certain wavelength, the substrate having a radiation absorbing material in an arrangement, the arrangement configured to apply a pattern to a cross-section of a radiation beam of the certain wavelength, wherein the absorbing material has a thickness which is substantially equal to the certain wavelength divided by a refractive index of the absorbing material.

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