Etching is a technique to remove a material using a chemical reaction or a physical impact.Etching techniques can be divided into wet etching and dry etching categories.
Generally referred to as etching is also known as photochemical etching, refers to the protective film removal of the etching area after exposure plate printing and development, contact with the chemical solution during etching, to achieve the effect of dissolving corrosion, forming the effect of concave and convex or hollow molding.
The earliest available to manufacture copper plate, zinc plate and other printing bump, is also widely used in weight reduction (Weight Reduction) instrument panels, nameplate and traditional processing method is difficult to process thin workpiece, etc. After continuous improvement and process equipment development, can also be used for precision etching products in aviation, mechanical, chemical industry, especially in the semiconductor process, etching is an indispensable technology.
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