Lithographic apparatus, method of determining a model parameter, device manufacturing method, and device manufactured thereby
    64.
    发明授权
    Lithographic apparatus, method of determining a model parameter, device manufacturing method, and device manufactured thereby 失效
    光刻设备,确定模型参数的方法,器件制造方法以及由此制造的器件

    公开(公告)号:US07558643B2

    公开(公告)日:2009-07-07

    申请号:US11007578

    申请日:2004-12-09

    IPC分类号: G06F19/00

    CPC分类号: G03F9/7092

    摘要: A method according to one embodiment of the invention relates to determining at least one parameter of a model that provides information about a position of an object. The object may include a plurality of alignment marks of which desired positions are known. The method includes measuring a plurality of positional parameters for each alignment mark. Based on the measured plurality of positional parameters, which are weighted with weighing coefficients, at least one parameter of the model of the object is determined. The numerical value of each weighing coefficient is determined together with the at least one parameter of the model.

    摘要翻译: 根据本发明的一个实施例的方法涉及确定提供关于对象的位置的信息的模型的至少一个参数。 物体可以包括多个对准标记,其中期望的位置是已知的。 该方法包括测量每个对准标记的多个位置参数。 基于所测量的多个位置参数,其被称重系数加权,确定对象的模型的至少一个参数。 每个称重系数的数值与模型的至少一个参数一起确定。

    Calibration Method, Inspection Method and Apparatus, Lithographic Apparatus, and Lithographic Processing Cell
    67.
    发明申请
    Calibration Method, Inspection Method and Apparatus, Lithographic Apparatus, and Lithographic Processing Cell 有权
    校准方法,检验方法和装置,平版印刷设备和平版印刷加工单元

    公开(公告)号:US20110292365A1

    公开(公告)日:2011-12-01

    申请号:US13132011

    申请日:2009-12-01

    IPC分类号: G03B27/54 G01N21/00

    摘要: Disclosed are methods, apparatuses, and lithographic systems for calibrating an inspection apparatus. Radiation is projected onto a pattern in a target position of a substrate. By making a plurality of measurements of the pattern and comparing the measured first or higher diffraction orders of radiation reflected from the pattern of different measurements, a residual error indicative of the error in a scatterometer may be calculated. This error is an error in measurements of substrate parameters caused by irregularities of the scatterometer. The residual error may manifest itself as an asymmetry in the diffraction spectra.

    摘要翻译: 公开了用于校准检查装置的方法,装置和光刻系统。 辐射被投影到基板的目标位置的图案上。 通过对图案进行多次测量并比较从不同测量图案反射的辐射的测量的第一或更高的衍射级数,可以计算指示散射仪中的误差的残差。 该误差是由散射仪的不规则引起的衬底参数的测量误差。 残余误差可能表现为衍射光谱中的不对称性。

    Apparatus and Method for Inspecting a Substrate
    68.
    发明申请
    Apparatus and Method for Inspecting a Substrate 有权
    用于检查基板的装置和方法

    公开(公告)号:US20110255066A1

    公开(公告)日:2011-10-20

    申请号:US12996211

    申请日:2009-06-04

    IPC分类号: G03B27/74 G03B27/32 G01B11/14

    CPC分类号: G03F7/70633

    摘要: An apparatus measures properties, such as overlay error, of a substrate divided into a plurality of fields. The apparatus includes a radiation source configured to direct radiation onto a first target of each field of the substrate. Each first target (T4G) has at least a first grating and a second grating having respective predetermined offsets, the predetermined offset (+d) of the first grating being in a direction opposite the predetermined offset (−d) of the second grating. A detector is configured to detect the radiation reflected from each first target and to obtain an asymmetry value for each first target from the detected radiation. Further, a module is configured to determine an overlay value for each first target based on at least the obtained asymmetry value and the predetermined offsets and determine a polynomial fit across a plurality of first targets of a corresponding plurality of fields of the substrate for a relationship between the obtained asymmetry value and determined overlay value of each first target.

    摘要翻译: 一种装置测量分成多个场的衬底的性质,例如覆盖误差。 该装置包括被配置为将辐射引导到衬底的每个场的第一靶上的辐射源。 每个第一目标(T4G)具有至少第一光栅和具有相应预定偏移的第二光栅,第一光栅的预定偏移(+ d)在与第二光栅的预定偏移(-d)相反的方向上。 检测器被配置为检测从每个第一目标反射的辐射,并且从检测到的辐射获得每个第一目标的不对称值。 此外,模块被配置为基于至少所获得的不对称值和预定偏移来确定每个第一目标的覆盖值,并且确定跨越衬底的相应多个场的多个第一目标的多项式拟合,以获得关系 在获得的不对称值和确定的每个第一目标的覆盖值之间。

    Process, Apparatus and Device
    70.
    发明申请
    Process, Apparatus and Device 有权
    过程,设备和设备

    公开(公告)号:US20100092881A1

    公开(公告)日:2010-04-15

    申请号:US12516909

    申请日:2007-12-03

    IPC分类号: G03F7/20 G03B27/42 G01B11/00

    摘要: A lithographic apparatus includes an illumination system configured to condition a radiation beam, a support for a patterning device, a substrate table for a substrate, a projection system, and a control system. The patterning device is capable of imparting the radiation beam with a pattern in its cross-section to form a patterned radiation beam. The projection system is configured to project the patterned radiation beam as an image onto a target portion of the substrate along a scan path. The scan path is defined by a trajectory in a scanning direction of an exposure field of the lithographic apparatus. The control system is coupled to the support, the substrate table and the projection system for controlling an action of the support, the substrate table and the projection system, respectively. The control system is configured to correct a local distortion of the image in a region along the scan path by a temporal adjustment of the image in that region, hereby reducing the intra-field overlay errors.

    摘要翻译: 光刻设备包括配置成调节辐射束的照明系统,图案形成装置的支撑件,用于衬底的衬底台,投影系统和控制系统。 图案形成装置能够在其横截面中赋予辐射束图案以形成图案化的辐射束。 投影系统被配置为沿着扫描路径将图案化的辐射束作为图像投影到基板的目标部分上。 扫描路径由光刻设备的曝光场的扫描方向上的轨迹限定。 控制系统耦合到支撑件,基板台和投影系统,用于分别控制支撑件,基板台和投影系统的作用。 控制系统被配置为通过在该区域中的图像的时间调整来校正沿着扫描路径的区域中的图像的局部失真,从而减少了场内重叠误差。