发明授权
US07072438B2 Reflection type mask 失效
反射型面具

Reflection type mask
摘要:
A reflection type mask includes a substrate on which a multi-layered film for reflecting X-rays is provided, a mask pattern which is formed on the multi-layered film for absorbing the X-rays, and a cover for protecting the mask pattern. The cover is detachably attached to the substrate.
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