Pellicle for EUV exposure
Abstract:
There is provided a pellicle for EUV lithography, which has a filter attached to a vent hole made through a pellicle frame bar for air pressure adjustment, and this filter is designed to be heat-resistant by being made of either a metal or a ceramic material, and is adhered to the pellicle frame by weldering or soldering, and also the filter has a filtration accuracy of 0.1 through 0.3 μm.
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