首页> 外国专利> METHOD FOR INSPECTING DEFECTS, INSPECTED WAFER OR SEMICONDUCTOR DEVICE MANUFACTURED USING THE SAME, METHOD FOR QUALITY CONTROL OF WAFERS OR SEMICONDUCTOR DEVICES AND DEFECT INSPECTING APPARATUS

METHOD FOR INSPECTING DEFECTS, INSPECTED WAFER OR SEMICONDUCTOR DEVICE MANUFACTURED USING THE SAME, METHOD FOR QUALITY CONTROL OF WAFERS OR SEMICONDUCTOR DEVICES AND DEFECT INSPECTING APPARATUS

机译:检查缺陷的方法,使用相同方法制造的被检验晶片或半导体器件,晶片或半导体器件的质量控制方法和缺陷检查设备

摘要

Light from a light source device is polarized through a polarizer and is caused to impinge obliquely onto an object to be inspected. The resulting scattered light is received by a CCD imaging device having an element for separating scattered polarized light disposed in a dark field. Component light intensities are worked out for an obtained P-polarized component image and an obtained S-polarized component image and a polarization direction is determined as a ratio of them. The component light intensities and the polarization directions are determined from images obtained by imaging of the light scattering entities in a state where static stress is not applied to the object to the inspected and in a state where static load is applied thereto so as to generate tensional stress on the side irradiated by light. The component light intensities and the polarization directions are compared with predetermined threshold values.
机译:来自光源装置的光通过偏振器偏振,并倾斜入射到检查对象上。所产生的散射光被CCD成像装置接收,该CCD成像装置具有用于分离设置在暗场中的散射偏振光的元件。对获得的P偏振分量图像和获得的S偏振分量图像求出分量光强度,并将偏振方向确定为它们的比率。分量光强度和偏振方向是根据在不对被检体施加静应力的状态下以及对被检体施加静载荷的状态下通过对光散射实体进行成像而获得的图像来确定的。光线照射一侧的应力。将分量光强度和偏振方向与预定阈值进行比较。

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