Etching is a technique in which a material is removed using a chemical reaction or a physical impact.
Etching techniques can be classified into two types: wet etching and dry etching.
It can be used to manufacture printed embossed plates such as copper plates and zinc plates.
It is also widely used in the processing of weight reduction instrument panels, nameplates and thin workpieces that are difficult to machine by conventional processing methods.
Through continuous improvement and development of process equipment, it can also be used in the processing of precision etching products for electronic sheet parts in the aerospace, machinery and chemical industries.
Etching is an indispensable technique especially in semiconductor processes.
Etching principle
The commonly referred to etch is also referred to as photochemical etching.
It means that after the plate is formed by exposure and developed, the protective film to be etched is removed, and the chemical solution is contacted during etching to dissolve and corrode, thereby forming the effect of unevenness or hollowing.
Process flow
Exposure method
The project is based on the pattern to prepare the material size → material preparation → material cleaning → drying → film or coating → drying → exposure → development → drying → etching → stripping → OK
Screen printing method
cutting material → cleaning sheet (stainless steel other metal materials) → screen printing → etching → stripping → OK
