Development of high-power EUV sources for lithography

Autor: Vladimir M. Borisov, Uwe Stamm, Vladimir Korobotchko, Sven Goetze, Imtiaz Ahmad, Juergen Kleinschmidt, Aleksandr Yu. Vinokhodov, Jens Ringling, O B Khristoforov, Alexander S. Ivanov, Guido Schriever
Rok vydání: 2002
Předmět:
Zdroj: Emerging Lithographic Technologies VI.
ISSN: 0277-786X
Popis: We report on the experimental status of the development of gas discharge produced plasma EUV sources for lithography based on the Z-pinch concept. The plasma size of approximately 1.3 mm X 1.5 mm has been matched to come close to the requirements resulting from the etendue of the optical system. The spatial stability of the plasma size as well as the plasma center is better than 15 percent standard deviation. The solid angle of emission is 1.8 sr, i.e. +/- 45 deg. The sources can be operated continuously at 1000 Hz repetition frequency and provide an EUV in-band power of 10 W in 1.8 sr. Spectral measurements providing in-band and out-of-band spectral distribution of the source are discussed.
Databáze: OpenAIRE