摘要
我们研制了一台用于光刻的KrF准分子激光器(248nm),单脉冲能量200mJ平均功率5~9W,能量不稳定度<土5%,脉宽35ns,线宽0.52nm,重复频率0.5~100Hz,单次充气寿命>5×105次脉冲数,储气寿命约一个月,近场光斑尺寸8mm×20mm,性能指标和光束的均匀性满足了光刻的要求。
A krF excimer laser (248nm) for optical etching is developted. The property of the laser is followlly described: pulse energy 200. mJ,average power 5-9W, pulse to pulse stability <5%, pulse duration 35ns, line width 0. 52nm, repitition rate 0. 5-100Hz, beam dimensions 8mm×20mm, one gas fitting>5×105 pulses and storage of one month.
出处
《应用激光》
CSCD
北大核心
1995年第1期22-25,共4页
Applied Laser