There are many forms of pcb files. In order to meet different market needs, pcb board manufacturers can open these different forms of files. Then, what materials need to be prepared before pcb board proofing? Follow along to find out!
Compared with traditional electronic circuit board, it not only shortens the production cycle of a single circuit board, but also has greater advantages in production cost and quality.
Selective welding processes include flux spraying, circuit board preheating, dip welding and drag welding. Flux coating process in selective welding, flux coating process plays an important role.
PCB design, not only technology, but also art, art involves a lot of subjective factors, so engineers should also pay attention to improve their own culture.
sinking gold plate and gold plate is the same process product, electric gold plate and flash gold plate is the same process product, in fact, it is just different people in the PCB industry of different names, sinking gold plate and electric gold plate is
The negative film is used for direct etching, and the corrosion resistance left after development is a circuit, which is etched directly with acid etching solution.
The circuitry on the circuit board is designed to bend to ensure the stability of the signal. Circuit board design is a kind of technical work, only using the corresponding design to ensure the stability of the signal.
Most of the equity is controlled by banks and trust shareholders or occupies a large proportion, which is not conducive to stand out in the competition of PCB market in the future.
There are many kinds of surface treatment of the circuit board. PCB proofing personnel should choose according to the performance and requirements of the board.
which also means that the frequency is higher and higher, the requirements of the circuit board substrate is also higher and higher.
When the production of laminate using copper foil and the resin system does not match, resulting in sheet metal foil peeling strength is not enough, plug-in will also appear bad copper wire shedding.
For PCB products in these emerging markets, the process and raw materials of high-end high frequency and high speed pcb board need to be comprehensively upgraded, and the technical barriers are comprehensively improved. The key to realize high frequency o