Performance of the full field EUV systems

The ASML extreme ultraviolet lithography (EUV) alpha demo tool is a 0.25NA fully functional lithography tool with a field size of 26×33 mm2, enabling process development for sub-40-nm technology. Two exposure tools are installed at customer facilities, and are equipped with a Sn discharge source. In this paper we present data measured at intermediate focus of the Sn source-collector module. We also present performance data from both exposure tools, show the latest results of resist exposures including excellent 32-nm half pitch dense staggered and aligned contact hole images, and present the highlights of the first demonstration of an electrically functional full field device with one of the layers made using EUVL in ASML's alpha demo tool.