Dependence of extreme ultraviolet emission on xenon flow rate from a Z-pinch discharge plasma

作者:Zhang Chaohai*; Cheng Yuanli; Katsuki Sunao; Akiyama Hidenori
来源:Japanese Journal of Applied Physics, 2008, 47(6): 4878-4880.
DOI:10.1143/JJAP.47.4878

摘要

Extreme ultraviolet (EUV) radiation with wavelengths of I I to 14 nm is seen as the most promising candidate for a new lithographic technology. Compared to synchrotron radiation sources and laser produced plasmas, gas discharge produced plasma (GDPP) sources for EUV radiation are expected to offer lower cost of ownership. This paper describes the dependence of EUV emission on gas flow rate. Using xenon a broadband emission in the investigated wavelength range from 10 to 18 nm is observed. Very short current pulses were applied across the xenon-filled Z-pinch capillary (3 mm diameter and 5 mm length) to produce EUV radiation. A EUV radiation from the Z-pinch plasma was characterized, which is based on the temporal behavior of EUV intensity and the pinhole images.

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