发明授权
US5549994A Exposure apparatus and reflection type mask to be used in the same 失效
曝光装置和反射型面罩一并使用

Exposure apparatus and reflection type mask to be used in the same
摘要:
A reflection type mask includes a reflective portion having a multilayered film, a non-reflective portion having an absorbing material and being formed on the multilayered film, and a non-reflective portion being defined by destroying the multilayered film.
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