Basic Introduction to Metal Etching

The commonly referred metal etching, also known as photochemical metal etching, refers to the removal of the protective film on the metal etching area after exposure plate making and development. During metal etching, it comes into contact with a chemical solution to achieve the effect of dissolution and corrosion, forming concave convex or hollow shapes. Originally used to manufacture printing relief plates such as copperplate and zinc plate, it is also widely used in the processing of weight reduction instrument panels, nameplates, and thin workpieces that are difficult to process using traditional processing methods; After continuous improvement and development of process equipment, it can also be used for the processing of precision metal etching products for electronic thin film parts in aviation, machinery, and chemical industries. Especially in semiconductor processes, metal etching is an indispensable technology.