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2022-02-24

Comparison of Dry Film and Wet Film for PCB Processing

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 […]

2022-02-24

One-Step Electroplating Copper Production PCB Process and Advantages

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 […]

2022-02-23

Cleaning Method of PCB Substrate Surface (1)

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 […]

2022-02-23

Cleaning Method of PCB Substrate Surface (2)

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 […]