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Etching, must adhere to the first processing. To determine the etching parameters (speed, temperature, etc.) through the first processing, the processing of the determination by the board after etching, graphic precision, width and other compliance requirements. After etching the first piece inspection and approval, and then batch processing.

Etched section configured one scale microscope inspection tools, strengthen inspection before and after etching. On the board before and after etching microscopic examination using microstrip line width scale, to identify problems and improve the processing, testing quality.

For wire toward more intensive graphics, should be consistent with the transmission direction etching machine, etching solution in preventing the accumulation of problems arising board, and in the relatively dense etching the wire side down, on a wire sparse face, but also can improve the uniformity of the pattern etched on both sides.

Etching process, the etching machine should be checked at any time, to check the state of the spray nozzles, nozzle clogging attention, conveyors functioning properly, prevent etching mechanical failure, scratch lines and scrap boards occur.