Keyou Circuit is a professional production of high precision multilayer circuit board, module gold circuit board, vehicle circuit board, traffic recorder,COB power supply, computer motherboard, medical circuit board
In short, the technological parameters and conditions of copper plating must be strictly controlled to ensure that the thickness of the copper plating layer in the hole meets the requirements of the technical standard.
various components (chips, resistors, capacitors, inductors, plugs, fuses, etc.) will be welded or affixed to the PCB, so that it is together with the copper foil layer. To form a complete circuit.
It is said that PCB manufacturers marketing girl is a arrived at five gourd baby, specializing in the treatment of customers with various difficult and complex diseases, professional mediation factory is not satisfied。
Most copper crepe will occur in areas where the line density is different, especially where one side is designed to be large copper but the other side has a large empty area.
For different product needs, to strengthen effective quality control and maintain the due trust, we must first improve the technology, material development and overall manufacturing engineering quality control system to achieve.
In the past, circuit board factories have lost a lot of money because of this problem, and after a period of improvement, they disappeared without knowing what changes to solve the problem.
The direction of the circuit board into the tin and the direction of the tin wave is opposite, the solder liquid surface oxide too much affect the welding.
The common multilayer board is generally 4 or 6 layers, complexMultilayer board can reach dozens of layers.
There are some micro short circuit, short circuit phenomenon of PCB circuit board, with ordinary low-voltage computer testing machine can not guarantee its quality, once into the hands of users will affect our own credibility.
The deformation of the circuit board (PCBA board) usually comes from the rapid temperature rise and rapid temperature drop (thermal expansion and cold contraction) caused by Reflow。
usually in the process of high-speed PCB design, the seemingly simple holes usually bring great negative effects to the circuit design.
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