At the same time, it must be easily removed by flux quickly in the subsequent welding high temperature for welding. OSP process is simple, low cost, widely used in PCB manufacturers.
PCB board drawing design is a complex and simple process. For the same circuit or the same instrument, even if the circuit with exactly the same components and parameters, the result may be very different due to the different component layout design and e
Protel is the most convenient to use, the fastest to operate, the best humanized interface auxiliary tool in the circuit aided design (EDA) industry at present, and also the most used EDA tool in China. This paper takes Protel99 SE as a design tool to ana
The bubbling of the circuit board is actually the problem of poor binding force on the board, and by extension, the surface quality of the board, which contains two aspects.
In the early stage of lead welding, the temperature was not very high, and the original PCB board could be tolerated. Since the temperature was increased after lead-free welding, powder was added to the PCB board to strengthen the PCB's resistance to temp
The drilling process can be completed by inputting the drilling coordinate program in the PCB file on the drilling machine and adjusting the corresponding drilling speed. In the via process, drilling accuracy, position deviation and bit fracture must be m
Starting from the most basic PCB board, this paper discusses the function and design skills of PCB stacking in controlling EMI radiation.
Another 6-layer board layout is signal, ground, signal, power, ground, signal, which enables the environment required for advanced signal integrity design. The signal layer is adjacent to the grounding layer, and the power layer is paired with the groundi
The same material produced by different pcb manufacturers varies due to its resin content. The dielectric constant decreases with the increase of frequency, so in practical application, the dielectric constant of materials should be determined according t
PCB circuit board manufacturers to PCB circuit board related design parameters detailed.
High Tg material: the so-called Tg value, now electronic products require the circuit board to be resistant to high temperature, at a certain temperature, the circuit board can not burn, can be softened, the softening temperature is called glass conversio
It has been proved that the reliability of electronic equipment will be adversely affected even if the circuit diagram is designed correctly and the printed circuit board is not designed properly.
Telegram