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    • 2. 发明公开
    • 기판상의 표면결점 검출방법 및 그 방법을 사용하는 표면결점 검출장치
    • 用于检测基板上的表面缺陷的方法和使用上述方法的设备
    • KR1020100014555A
    • 2010-02-10
    • KR1020097019902
    • 2008-03-27
    • 소이텍알따떼크 세미컨덕터
    • 물랭,쎄씰모리쯔,소피갸스딸도,필립베르줴,프랑수아델까리,장뤽벨랭,빠트리스말르빌,크리스토프
    • G01B11/25G01N21/95H01L21/66
    • G01N21/9501G01B11/2527G01B11/306G01N2021/8829
    • Method for detecting surface defects on a substrate and device using said method. This invention relates to a method for detecting surface defects, such as type defects, on a substrate (2) designed to be used in electronics, optoelectronics or analogue, remarkable in that it comprises at least the following steps:-projection of a pattern composed of an alternation of light fringes and dark bands onto the substrate (2), so as to generate fringes reflected by the surface of the substrate (2),-relative displacement of the pattern and the substrate (2) along at least one direction, so as to displace the fringes of the pattern on the substrate (2),-acquisition of a sequence of at least three images of the pattern reflected by the substrate (2) by a sensor (8), the images corresponding to displacement of the fringes of the pattern,-determination of the gradient of the surface of the substrate (2) using displacements of fringes of the pattern, and-determination of the presence of a surface defect on the substrate (2) using variations in the gradient of the surface of the substrate (2). Another purpose of the invention relates to a device using said method.
    • 使用所述方法检测衬底和器件上的表面缺陷的方法。 本发明涉及一种用于在设计用于电子学,光电子学或类似物的衬底(2)上检测诸如<滑线>型缺陷的表面缺陷的方法,其显着的至少包括以下步骤: - 投影 由基板(2)上的光条纹和暗带的交替组成的图案,以产生由基板(2)的表面反射的边缘, - 图案和基板(2)沿着相对位移 至少一个方向,以便移动基板(2)上的图案的条纹, - 通过传感器(8)获取由基板(2)反射的图案的至少三个图像的序列,所述图像对应 使图案的边缘移位,使用图案的边缘的位移确定基底(2)的表面的梯度,以及使用基底(2)上的变化来确定表面缺陷的存在 冲浪的梯度 (2)。 本发明的另一个目的涉及一种使用所述方法的装置。