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 […]

In order to fulfill the requirements of printed circuit board inspection, a variety of inspection equipment has been produced. Automated Optical Inspection (AOI) systems are often […]

1. Single-sided rosin PCB board (no drilling, punching with die) Cutting material — silk screen circuit (black oil) — etching — etching QC — hand drilling […]