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A special copper-clad laminate is used, and the surface of the copper-plated layer is pre-coated with a layer of photosensitive material, so it is called “pre-coated photosensitive copper plate”
The pcb multi-layer board is a special kind of printed board. Its existence "location" is generally special. For example, there will be pcb multi-layer board in the circuit board. This kind of multi-...
The transmission at this time does not cause reflection, which means that all energy is absorbed by the load. Otherwise, there is energy loss in the transmission. In high-speed PCB design, the matchin...
In order to solve the heat dissipation problem, aluminum PCB and some high-power IC are widely used in LED trace design. Aluminum PCB consists of copper layer, thermally conductive dielectric layer an...
The classification of printed circuit boards for communication products, material selection, technical development direction, design and processing technical specifications, can be used by printed cir...
Printed Circuit Board Warping And Leveling Method 1. Flatten Warped Plate in PCB Process In the PCB process, the plate with a relatively large warpage is picked out and leveled by a roll-type level...
For electronic products, the printed circuit board design is a design process that must be passed from electrical schematic to a specific product. The rationality of its design is closely related to p...
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The solder resistance film of printed circuit board is a permanent protective layer. It not only has the function of solder resistance, protection, insulation resistance and so on, but also has a grea...
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