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发明授权
CN104882371B 激光退火方法以及装置 有权

激光退火方法以及装置
摘要：
本发明涉及激光退火方法以及装置。在透镜阵列方式的均化器光学系统的情况下，一边使长轴用透镜阵列（20a、20b）在与线状光束的长轴方向对应的方向（X方向）往复移动，一边进行激光照射，由此，入射到在后级设置的构成长轴用聚光光学系统的大型透镜（长轴用聚光透镜22）的激光（1）的入射角以及强度按照每次发射而变化，所以，纵向条纹被大幅度降低。另外，一边使短轴用透镜阵列（26a、26b）在与线状光束的长轴方向对应的方向（Y方向）往复移动，一边进行激光照射，由此，入射到在后级设置的构成长轴用聚光光学系统的大型透镜（投影透镜30）的激光（1）的入射角以及强度按照每次发射而变化，所以，横向条纹被大幅度降低。
摘要（英）：

In the case of a lens array type homogenizer optical system, the incident angle and intensity of a laser beam 1 entering a large-sized lens (long-axis condenser lens 22) of a long-axis condensing optical system, which is provided on the rear side, are changed for every shot by performing laser irradiation while long-axis lens arrays 20a and 20b are reciprocated in a direction corresponding to a long axial direction of a linear beam (X-direction). Therefore, vertical stripes are significantly reduced. Further, the incident angle and intensity of a laser beam 1 entering a large-sized lens (projection lens 30) of a short-axis condensing optical system, which is provided on the rear side, are changed for every shot by performing laser irradiation while short-axis lens arrays 26a and 26b are reciprocated in a direction corresponding to a short axial direction of a linear beam (Y-direction). Therefore, horizontal stripes are significantly reduced.

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