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    • 2. 发明申请
    • LASER OPTICAL SYSTEM
    • 激光光学系统
    • WO2008080099A3
    • 2008-09-18
    • PCT/US2007088648
    • 2007-12-21
    • UV TECH SYSTEMS INCELLIOTT DAVID JHARTE KENNETH JMILLMAN RONALD PCHAPLICK VICTORIA M
    • ELLIOTT DAVID JHARTE KENNETH JMILLMAN RONALD PCHAPLICK VICTORIA M
    • B23K26/08
    • G02B19/0014B23K26/082B23K2201/40B29C64/135G02B19/0052G02B19/0095G02B27/0955H01L21/268
    • A compact optical system (10') is provided for delivering laser radiation with high optical efficiency and uniformity. The optical system includes, in order of the propagation of light, a refractive beam expander (40) to adjust beam size and energy density, a beam flattening module (60) to increase throughput and beam uniformity, an anamorphic corrector (30) to equalize ray distribution in both axes, an attenuator assembly (21) to adjust beam intensity, galvanometer mirrors (84, 86) to scan the beam across a substrate surface- (100), and a. focusing lens (88) containing a plurality of refractive elements to deliver the beam at the substrate plane. The laser optical system shapes the laser source beam (14) to increase its effective width for greater productivity in manufacturing, and reduces peak intensity to minimize substrate damage. The laser optical system design is optimized for maximum transmission and optical efficiency for low cost operation with a small laser (12). '.
    • 提供了一种紧凑的光学系统(10'),用于传递具有高光学效率和均匀性的激光辐射。 光学系统以光的传播顺序包括用于调节光束尺寸和能量密度的折射光束扩展器(40),用于增加光通量和光束均匀性的光束平坦化模块(60),变形校正器(30) 以及用于调整光束强度的衰减器组件(21),检测反射镜(84,86)以跨越衬底表面扫描所述光束(100),以及a。 聚焦透镜(88)包含多个折射元件以将光束传送到基板平面。 激光光学系统形成激光源光束(14)以增加其有效宽度,以提高制造生产率,并降低峰值强度以最小化衬底损伤。 激光光学系统设计通过小型激光器(12)进行优化,实现最低的传输和光学效率,实现低成本操作。 ”。