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ArF excimer laser for 193-nm lithography

机译:用于193 nm光刻的ArF准分子激光器

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Abstract: Considerable progress has been made in the development of the major components for 193 nm lithography tools. Here we describe the parameters of a line-narrowed ArF excimer laser for microlithography. With a specified FWHM bandwidth of less than 0.7 pm, the laser is applicable for refractive steppers and scanners which utilize some degree of achromatization. Prototype lasers have been built to study the optimum parameters. The main challenge of the development was the achievement of high efficiency in the conversion from the laser's broadband emission into line-narrowed emission. The lasers are operated at up to 1 kHz repetition rate with a maximum power of 10 W. This paper provides an overview of the currently achievable power levels, energy stability and bandwidths and discusses future trends. !3
机译:摘要:193 nm光刻工具的主要组件的开发已取得了相当大的进展。在这里,我们描述了用于微光刻的细线ArF准分子激光器的参数。在指定的FWHM带宽小于0.7 pm的情况下,该激光器适用于利用了一定程度消色差的折射步进器和扫描仪。已建立原型激光器来研究最佳参数。发展的主要挑战是要实现从激光器的宽带发射到线窄发射的高效转换。激光器以高达1 kHz的重复频率运行,最大功率为10W。本文概述了当前可达到的功率水平,能量稳定性和带宽,并讨论了未来的趋势。 !3

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