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.
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.
which makes it easy to find PCB manufacturers, find high-quality PCB manufacturers is not easy, and find and cherish!
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.
The cost calculation of PCB industry is the most special and complex in all industries. From opening, platen, forming, to FQC, packaging, completion and warehousing.
in fact, repair maintenance cost greatly increased at the same time, customer brand affected, It doesn't pay off in the long run.
the temperature reproducibility can be obtained through multiple tests, so as to systematically evaluate the performance of the press.
Electrical testing is a very important link in the PCB board manufacturing process, the purpose is to check whether the PCB board is open and short circuit problem, to ensure that the finished products in line with the customer's electrical performanc
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