Photolithography process is a key step in the semiconductor device fabrication process, which forms corresponding pattern structures on the surface of photoresist through exposure and development. Then, with the help of etching process, the patterns on the mask are accurately transferred onto the substrate material. The substrate here is not limited to silicon wafers, but can also include various metal layers and dielectric layers. I have mastered multiple photolithography related technologies.

Application materials: Common photolithography materials such as silicon wafers, glass, sapphire, flexible materials, etc

Lithography processing technology: details such as minimum pattern size and etching accuracy

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