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    • 2. 发明申请
    • MULTIPLE LAYER ALIGNMENT SENSING
    • 多层排列感应
    • WO2006058192A3
    • 2006-08-03
    • PCT/US2005042694
    • 2005-11-23
    • HEWLETT PACKARD DEVELOPMENT COPICCIOTTO CARL EGAO JUN
    • PICCIOTTO CARL EGAO JUN
    • G03F9/00
    • G03F9/7003G03F9/7038G03F9/7088
    • Using an imaging system (104) in relation to a plurality of material layers (114, 116) is described, the material layers being separated by a distance greater than a depth of field of the imaging system. A focal plane (106) of the imaging system and a first (114) of the plurality of material layers are brought into correspondence. A first image including at least a portion of the first material layer (114) having a first feature of interest thereon (116) is stored. The focal plane (106) of the imaging system and a second (118) of the plurality of material layers are brought into correspondence. A second image including at least a portion of the second material layer (118) having a second feature of interest thereon (120) is acquired. The first and second images are processed for automatic computation of an alignment measurement between the first and second features of interest.
    • 描述了关于多个材料层(114,116)使用成像系统(104),材料层以大于成像系统的景深的距离分开。 使成像系统的焦平面(106)和多个材料层中的第一个(114)对应。 存储包括其上具有第一感兴趣特征(116)的第一材料层(114)的至少一部分的第一图像。 成像系统的焦平面(106)和多个材料层中的第二个(118)对应。 获取包括其上具有第二感兴趣特征(120)的第二材料层(118)的至少一部分的第二图像。 处理第一和第二图像以自动计算第一和第二感兴趣特征之间的对准测量值。