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US4876164A Process for manufacturing a photomask 失效
光掩模制造工艺

Process for manufacturing a photomask
摘要:
A photomask manufacturing process including a step of forming metal silicide film on a transparent silica glass substrate. A resist is applied onto the metal silicide film and then a patterning mask is provided by light or electron beam, followed by developing step. Exposed portions of the metal silicide film is etched away using a dry etching process.
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