Optimization design skills of circuit board heat dissipation :1. Heat dissipation by PCB board itself,2. High heating device with radiator, heat conduction plate,3. For the use of free convection air cooling equipment, the integrated circuit is arranged i
The establishment of more and more circuit board recycling plants, to a large number of waste circuit boards to provide the final place, but also to better protect the environment and their own health.
To summarize, the production process of a typical pcb factory is as follows: blanking → inner fabrication → pressing → drilling → copper plating → outer fabrication → soldering paint printing → text printing → surface treatment → contour processing.
Soft board is a printed circuit board made of flexible insulating material, which has many advantages that rigid printed circuit boards do not have. Rigid circuit boards can be high-density.
The milling technology of circuit board CNC milling machine includes the selection of cutting direction, compensation method, positioning method, frame structure, the next cutter point, which is an important aspect to ensure the milling precision.
Five common silver plating defects of multilayer circuit boards have been solved by solution manufacturers, equipment manufacturers and PCB factories, and some methods have been found to prevent and improve them.
The number of layers of the multilayer board is not limited, there are more than 100 layers. Relatively speaking, PCB with even layers does have more advantages than PCB with odd layers.
In the PCB industry using laser marking two-dimensional code technology, can realize PCB production, process, quality traceability, and realize the automation, intelligent management requirements.
No cleaning means that the residues of PCB circuit boards are safe from the chemical point of view, will not have any impact on the production line of PCB circuit boards, and can be left on PCB circuit boards
Prevention can be carried out in the following ways: 1, moisture-proof storage of components, 2, choose well-known brand solder paste, 3, adjust printing parameters, 4, adjust reflow temperature curve, 5, try to use reflow welding, reduce manual welding,
So what are the factors that affect the price of a PCB board? 1, PCB material difference, 2, surface treatment process difference, 3, PCB itself difficulty difference, 4, copper foil thickness difference, 5, customer quality acceptance standard difference
What are SMT patch, PCB circuit board, PCBA processing and DIP plug-in respectively? First, SMT is one of the basic components of electronic components, which is called surface assembly technology; second, PCB is the most important component of electronic
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