Invention Grant
US07666553B2 Fabrication method for photomask, fabrication method for device and monitoring method for photomask 有权
光掩模的制造方法,装置的制造方法和光掩模的监视方法

Fabrication method for photomask, fabrication method for device and monitoring method for photomask
Abstract:
A fabrication method for a photomask is disclosed. Two or more metal containing layers are formed over a substrate, and a main pattern and a monitor pattern are formed over one or more of the two or more metal containing layers other than the lowermost metal containing layer. Then, the monitor pattern is measured, and the monitor pattern after being measured is removed. Then, the main pattern is formed over the lowermost metal containing layer to fabricate a photomask formed from the two or more metal containing layers.
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