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    • 1. 发明申请
    • Substrate illumination and inspection system
    • 基板照明和检查系统
    • US20070258085A1
    • 2007-11-08
    • US11417297
    • 2006-05-02
    • Michael RobbinsPaul ForderhaseJoel BaileyKevin Nguyen
    • Michael RobbinsPaul ForderhaseJoel BaileyKevin Nguyen
    • G01N21/00
    • G01N21/9503G01N21/4738
    • A substrate illumination and inspection system provides for illuminating and inspecting a substrate particularly the substrate edge. The system uses a light diffuser with a plurality of lights disposed at its exterior or interior for providing uniform diffuse illumination of a substrate. An optic and imaging system exterior of the light diffuser are used to inspect the plurality of surfaces of the substrate including specular surfaces. The optic is held at an angle from a surface normal to avoid reflective artifacts from the specular surface of the substrate. The optic can be rotated radially relative to a center point of the substrate edge to allow for focused inspection of all surfaces of the substrate edge. The plurality of lights can modulate color and intensity of light to enhance inspection of the substrate for defects.
    • 衬底照明和检查系统提供用于照明和检查衬底,特别是衬底边缘。 该系统使用具有设置在其外部或内部的多个光的光漫射器,用于提供衬底的均匀漫射照明。 光扩散器的光学和成像系统外部用于检查包括镜面的基板的多个表面。 光学元件保持与表面法线成一定角度,以避免来自基板的镜面的反射伪影。 光学元件可以相对于基板边缘的中心点径向旋转,以允许对基板边缘的所有表面进行聚焦检查。 多个光可以调制光的颜色和强度,以增强基板对缺陷的检查。