It is the national comprehensive reform pilot zone, the national logistics hub, the Southeast international shipping center, the pilot free Trade Zone, and the national Marine economy development demonstration zone. It has become the cross-Straits emergin
But as digital circuits became faster and RF circuits were incorporated into PCB, boards became the limiting factor in many designs, and while CAD tools can help engineers design boards, CAD's automatic wire-winding capabilities often cause more problems.
With the PCB design time is shorter and shorter, the size requirements are smaller and smaller, and the device density is higher and higher, the PCB design is more and more difficult. Many manufacturers tend to use special EDA tools to achieve PCB design.
With the decrease of signal rising time and the increase of signal frequency, we pay more and more attention to EMI problems of electronic products. Almost 60% EMI problems can be controlled and solved by high-speed PCB.
Designing high-speed systems requires not only high-speed components, but also genius and careful design.
the process of resin plug hole has been used more and more widely in the PCB industry, especially in some high layer, the board thickness of the product is favored. It was hoped that the use of resin plug holes would solve a range of problems that could n
The appearance of poor tin pcb is generally related to the cleanliness of PCB empty board surface. If there is no pollution, there will be no poor tin. Second, the solder itself is poor, temperature and so on.
pcb board quick proofing is generally charged according to the information provided by customers and process requirements. For example: the number of boards, process requirements, ink color, board thickness, difficulty, expediting time and so on, a compre
PCB technology is very complex, involving many aspects of the problem, whether in the design stage or the production stage, there are a lot of problems need to be answered.
he PCB hole is mainly composed of the hole, the bright plate area around the hole, and a part of the power layer isolation area. In high speed PCB design, it is often necessary to use multi-layer PCB, and the hole is multi-original.An important factor in
Copper coating has advantages and disadvantages. PCB design for two layer board, high resistance loop, multilayer board (microstrip line), copper coating is very necessary. For multilayer high speed digital circuits with a complete power supply and ground
A typical manufacturer can only request it twice per production cycle, and only check it once every few months. IR testing in simulated batches also prevents more spills of defective products, which are a prerequisite for quality PCB factories. In additio