CO2-LASER DRILLING OF COPPER FOLLOWING EXCIMER LASER PRETREATMENT

被引:6
|
作者
KINSMAN, G
DULEY, WW
机构
[1] York University, Laser Processing Laboratory, North York, Ont. M3J 1P3
关键词
D O I
10.1063/1.102574
中图分类号
O59 [应用物理学];
学科分类号
摘要
Efficient CO2 laser drilling of copper sheet has been obtained following pretreatment with excimer laser radiation at intensities of (1-2)×106 W cm-2. The present studies show a significant reduction in the laser pulse energy, pulse duration, and gas assist parameters required to drill copper sheets with thicknesses of up to 1 mm. Optimization of laser drilling under these conditions involves a material removal regime that differs from that obtained at high laser intensity when drilling untreated surfaces.
引用
收藏
页码:996 / 998
页数:3
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