RAPID DETECTION OF AMMINENT FAILURE IN LASER THERMAL PROCESSING OF A SUBSTRATE
    2.
    发明公开
    RAPID DETECTION OF AMMINENT FAILURE IN LASER THERMAL PROCESSING OF A SUBSTRATE 审中-公开
    站在面前在衬底的激光热处理故障快速检测

    公开(公告)号:EP1824637A1

    公开(公告)日:2007-08-29

    申请号:EP05813276.2

    申请日:2005-10-12

    IPC分类号: B23K26/42

    摘要: A thermal processing system (10) includes a source of laser radiation having an array (34) of lasers emitting light at a laser wavelength, a substrate support, optics (48,52,62,64,66,70) disposed between said source and said substrate support for forming a line beam in a substrate plane of the substrate support from the light emitted by the source of laser radiation, and scanning apparatus (16,18) for effecting movement of said line beam relative to said substrate support in a direction transverse to the longitudinal axis of said line beam. The system further includes a housing (68) encompassing said optics, a light detector (81) disposed inside said housing for sensing an ambient light level, a power supply (100) coupled to the source of laser radiation, and a controller (90) governing said power supply and responsive to said light detector (81) for interrupting said power supply upon an increase in the output of said light detector (81) above a threshold ambient level.

    MULTIPLE BAND PASS FILTERING FOR PYROMETRY IN LASER BASED ANNEALING SYSTEMS
    4.
    发明公开
    MULTIPLE BAND PASS FILTERING FOR PYROMETRY IN LASER BASED ANNEALING SYSTEMS 有权
    多带通滤波器,用于在高温计激光辅助退火设备

    公开(公告)号:EP1831658A2

    公开(公告)日:2007-09-12

    申请号:EP05809879.9

    申请日:2005-10-12

    IPC分类号: G01J5/06 B23K26/073 B23K26/03

    摘要: A thermal processing system includes a source of laser radiation emitting at a laser wavelength, beam projection optics disposed between the reflective surface and a substrate support capable of holding a substrate to be processed, a pyrometer responsive to a pyrometer wavelength, and a wavelength responsive optical element having a first optical path for light in a first wavelength range including the laser wavelength, the first optical path being between the source of laser radiation and the beam projection optics, and a second optical path for light in a second wavelength range including the pyrometer wavelength, the second optical path being between the beam projection optics and the pyrometer. The system can further include a pyrometer wavelength blocking filter between the source of laser radiation and the wavelength responsive optical element.

    SINGLE AXIS LIGHT PIPE FOR HOMOGENIZING ONE AXIS OF ILLUMINATION SYSTEMS BASED ON LASER DIODES
    6.
    发明公开
    SINGLE AXIS LIGHT PIPE FOR HOMOGENIZING ONE AXIS OF ILLUMINATION SYSTEMS BASED ON LASER DIODES 审中-公开
    基于激光二极管的单轴光线均质化的轴照明系统

    公开(公告)号:EP1828820A1

    公开(公告)日:2007-09-05

    申请号:EP05804317.5

    申请日:2005-10-12

    摘要: Apparatus for thermally processing a semiconductor wafer includes an array of semiconductor laser emitters arranged in plural parallel rows extending along a slow axis, plural respective cylindrical lenses overlying respective ones of the rows of laser emitters for collimating light from the respective rows along a fast axis generally perpendicular to the slow axis, a homogenizing light pipe having an input face at a first end for receiving light from the plural cylindrical lenses and an output face at an opposite end, the light pipe comprising a. pair of reflective walls extending between the input and output faces and separated from one another along the direction of the slow axis, and scanning apparatus for scanning light emitted from the homogenizing light pipe across the wafer in a scanning direction parallel to the fast axis.