Comparison of Dry Film and Wet Film for PCB Processing Dry film is easy to operate, especially using an automatic film laminating machine, which can be […]

In the process of producing double-sided or multi-layer PCB, it is generally used the following steps. Punching – chemical immersion copper – full board thickening copper […]

The surface quality of the copper foil plays an important role in the success and throughput of the image transfer process. The surface of the copper […]

B. Machine Cleaning During machine cleaning, the machine is typically cleaned by abrasive brushes. Figure 7-2 Use solvent strippers such as corundum, corundum, alumina, and silicon […]