Dec. 27, 2021
Brown oxidation and black oxidation in the PCB manufacturing process are to increase the adhesion between the original board and PP (prepreg).
Dec. 24, 2021
The hole wall copper is divided into several points, porthole, innerside & porthole of other side. If the hole copper is uneven, it will affect the in…
Dec. 24, 2021
Compared with the traditional CCD semi-automatic exposure machine, LDI has many advantages. For example, it does not need film, which reduces the film…
Dec. 22, 2021
LDI exposure machine is easier to realize automatic operation, saves labor cost, greatly improves product quality and avoids defective rate.
Dec. 20, 2021
Photoresist etching is also used as another key step in the production of printed circuit boards. Protecting the copper required during etching requir…
Dec. 17, 2021
Advantages: it has high manufacturing precision and neat edges, process easy to control. It is suitable for the production of PCB boards with high pre…
