Investigating The Ru/Ta Bilayer As An Alternative EUV Absorber To Mitigate Mask 3D Effects


A technical paper titled “Ru/Ta bilayer approach to EUV mask absorbers: Experimental patterning and simulated imaging perspective” was published by researchers at KU Leuven and imec. Abstract: "The optical properties and geometry of EUV mask absorbers play an essential role in determining the imaging performance of a mask in EUV lithography. Imaging metrics, including Normalized Imag... » read more