Usually the circuit is chemically etched on the assembly line and cleaned immediately, and the etching and cleaning are carried out simultaneously on the same assembly line. However, depending on the etching process, different cleaning methods will be used. Usually wet etching will be strictly controlled when chemical etching copper traces. Avoid unnecessary blemishes and etching incompleteness.

As FPC supplier knows that, this can be perfectly guaranteed on the JHD etching line. Usually only distilled water is required for simple cleaning. Dry etching, on the other hand, does not require any chemicals to be cleaned and dried. Fully automatic plasma etching and laser etching machines can be molded in one go with precise computer control.