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    • 4. 发明专利
    • Process, instrument and device
    • 过程,仪器和设备
    • JP2008147654A
    • 2008-06-26
    • JP2007310091
    • 2007-11-30
    • Asml Netherlands Bvエーエスエムエル ネザーランズ ビー.ブイ.
    • MOS EVERHARDUS CORNELISSCHAAR MAURITS VAN DERSIMONS HUBERTUS JOHANNES GERTR
    • H01L21/027
    • G03F7/70725G03F7/70258G03F7/70358G03F7/70458G03F7/70525G03F7/70633G03F7/70783
    • PROBLEM TO BE SOLVED: To provide an instrument and process that can reduce or correct the contribution of the strains or defects of a mask pattern to the strain of an exposure pattern.
      SOLUTION: In the instrument for determining the process parameter of a process for generating an overlay pattern on a substrate, by applying a process model to a proposed process parameter and data, including a deduced overlay error between overlay patterns, the proposed overlay error corresponds to a process control, depending on the proposed value of the process parameter. Thus, the value determined for the process parameter corresponds to the minimum overlay error. The instrument determines the first value of the process parameter that generates the first portion of the overlay pattern in the first section of a target field, and a second value that is different from the first value of the process parameter for generating one of the second portion of the overlay pattern.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供可以减少或校正掩模图案的应变或缺陷对曝光图案的应变的贡献的仪器和工艺。 解决方案:在用于确定用于在衬底上生成覆盖图案的工艺的工艺参数的工具中,通过将工艺模型应用于所提出的工艺参数和数据,包括叠加图案之间的推导覆盖误差,所提出的覆盖 错误对应于过程控制,具体取决于过程参数的建议值。 因此,为过程参数确定的值对应于最小重叠误差。 仪器确定在目标场的第一部分中产生覆盖图案的第一部分的过程参数的第一值,以及不同于用于生成第二部分之一的过程参数的第一值的第二值 的覆盖图案。 版权所有(C)2008,JPO&INPIT
    • 5. 发明申请
    • PROCESS, APPARATUS AND DEVICE
    • 过程,设备和设备
    • WO2008066375A3
    • 2008-08-28
    • PCT/NL2007000298
    • 2007-12-03
    • ASML NETHERLANDS BVMOS EVERHARDUS CORNELISVAN DER SCHAAR MAURITSSIMONS HUBERTUS JOHANNES GERTR
    • MOS EVERHARDUS CORNELISVAN DER SCHAAR MAURITSSIMONS HUBERTUS JOHANNES GERTR
    • G03F7/20
    • G03F7/70725G03F7/70258G03F7/70358G03F7/70458G03F7/70525G03F7/70633G03F7/70783
    • 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.
    • 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。