Etching of Printed Circuit board

Etching of Printed Circuit board

Etching of PCB manufacturing
The pre-etching treatment is a key process of printed circuit board to ensure good adhesion between the screen printing ink and the metal surface. Therefore, it is necessary to thoroughly remove the oil and oxide film on the metal etching PCB board surface. Usually referred to as etching is also called photochemical etching, which refers to the removal of the protective film from the area to be etched after exposure to plate making and development of the PCB. And exposure to chemical solutions during etching to achieve the effect of dissolving and etching, forming bumps or hollowing out.

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