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2022-02-24
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
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
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
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 […]
