Mo/Si multilayer mirrors with 300-bilayers for EUV lithography

Autor: Satoshi Oku, Masatoshi Hatayama, Satoshi Ichimaru, Tadayuki Ohchi
Rok vydání: 2015
Předmět:
Zdroj: Photomask Japan 2015: Photomask and Next-Generation Lithography Mask Technology XXII.
ISSN: 0277-786X
Popis: Mo/Si multilayer mirror with 300-bilayers for EUV lithography is developed for the purpose of long-lifetime use in LPP EUV source. The multilayer mirrors are fabricated by a magnetron sputtering method and are characterized by coherence scanning interferometry, XRR and EUV reflectometer. The results show the excellent performance of 320 layer pair multilayer being useful for EUV multilayer mirror.
Databáze: OpenAIRE