会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明专利
    • Surface inspection system and surface inspection method
    • 空值
    • JP4298720B2
    • 2009-07-22
    • JP2006129701
    • 2006-05-08
    • ケーエルエー−テンカー テクノロジィース コーポレイション
    • ビイ. ウェルズ、キースアール.アイアイアイ ジョーダン、ジョンニコナハッド、メールダッド
    • G01B11/30G01N21/956G01B11/02G01N21/88G01N21/94G01N21/95G01R31/28G01R31/308G06T1/00G06T7/00H01L21/66
    • G01N21/95623G01N21/94G01N21/9501G01N21/956G01N21/95607G01N2021/8825G01R31/2831G01R31/308H01L22/12H01L2924/0002H01L2924/00
    • An optical system for detection of anomalies, such as particles or pattern defects, on a surface (40) comprising: optics (22,26,34,36) arranged to provide a beam (38) of radiation illuminating the surface at an oblique angle; at least two detectors (110a,110b,111a,111b); at least two optical elements (110a,110b,111a,111b) arranged to collect radiation scattered from the surface, each optical element arranged to direct the collected, scattered radiation to a corresponding one of the detectors, causing the detectors to provide output signals in response thereto, wherein the optical elements are located such that each of the detectors senses radiation scattered from the surface in a different direction; a device comprising a moving stage (124) that causes relative motion between the beam and the surface; and a processor (200) processing information from said detector output signals concerning radiation scattered from different parts of the surface in different directions from the detectors, and arranged to identify anomalies; said device further comprising an acousto-optic deflector (30), such that each of the moving stage and the acousto-optic deflector causes relative motion between the beam and the surface so that the beam scans a scan path covering substantially the entire surface, said path including a plurality of arrays of scan path segments (50,50',50",50"'), wherein at least some of such scan path segments have a span shorter than the dimensions of the surface (40), and so that the beam is caused to illuminate different parts of the surface and so that the detectors provide output signals in response to radiation from different parts of the surface illuminated by the beam.
    • 一种用于检测表面(40)上的异常(例如颗粒或图案缺陷)的光学系统,包括:光学器件(22,26,34,36),其布置成提供以倾斜角照射表面的辐射束(38) ; 至少两个检测器(110a,110b,111a,111b); 布置成收集从表面散射的辐射的至少两个光学元件(110a,110b,111a,111b),每个光学元件布置成将所收集的散射辐射引导到相应的一个检测器,使得检测器提供输出信号 响应于此,其中光学元件被定位成使得每个检测器感测从不同方向从表面散射的辐射; 一种装置,包括使所述梁和所述表面之间相对运动的移动台(124); 以及处理器(200)处理来自所述检测器输出信号的信息,所述信号涉及从与所述检测器不同的方向从所述表面的不同部分散射的辐射,并且被布置为识别异常; 所述装置还包括声光偏转器(30),使得每个移动台和声光偏转器引起光束和表面之间的相对运动,使得光束扫描覆盖基本上整个表面的扫描路径,所述扫描路径 所述扫描路径段包括扫描路径段(50,50',50“,50”)的多个阵列,其中所述扫描路径段中的至少一些具有比所述表面(40)的尺寸短的跨度,并且因此 使光束照射表面的不同部分,并且使得检测器响应于由光束照射的表面的不同部分的辐射而提供输出信号。