What is etching?

2023-11-10 339

  Generally, etching is also called photochemical etching, which means that after plate making and development by exposure, the protective film in the etching area is removed, and the chemical solution is touched during etching to dissolve corrosion and form concave convex or hollow forming effect.

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  In the early stage, it can be used to make copper plate, zinc plate and other printing concave convex plates. It is also widely used in the processing of weight reduction instrument panels, nameplates and thin workpieces that are difficult to be processed by traditional processing methods; After continuous improvement and development of process equipment, it can also be used for the processing of fine etching products of electronic sheet parts in aviation, machinery and chemical industries. Especially in semiconductor process, etching is an indispensable skill.

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