Samsung has made significant progress in extreme ultraviolet (EUV) lithography technology and is using EUV films produced in Japan. EUV films play an important role in the photolithography process in semiconductor manufacturing, preventing foreign particles from causing defects. According to reports, the light transmittance of the EUV film currently used by Samsung has reached 90%, and it plans to increase it to 94-96%. Advances in this technology will help improve the efficiency and quality of semiconductor manufacturing.