Signal integrity circuit board design criteria include SI problems, pre-design preparation, cascade, crosstalk and impedance control, high-speed nodes, technology selection, pre-wiring stage, post-wiring SI simulation, post-manufacturing stage, model sele
The bubbling of the circuit board is actually the problem of poor binding force of the board, that is, the surface quality of the board, which includes the cleanliness of the board and the surface microscopic roughness (or surface energy).
the trend of automobile electrification and electronization is more and more obvious. As the infrastructure of electronic products, PCB manufacturing is becoming increasingly important in the automotive supply chain
Special attention needs to be paid to the selection of materials to ensure stability in terms of temperature, humidity and bias in addition to electrical properties. This will lead to future restrictions on material selection and design rules.
Perforation is one of the important components of multilayer PCB board, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB board. Simply put, every hole in the PCB can be called a pass hole.
Testing PCB board should pay attention to insulation performance, working principle, test instrument internal resistance, power integrated circuit heat dissipation, welding quality, do not easily determine the damage of integrated circuit and other proble
With the continuous upgrading of electronic products, single and double panels have been unable to meet the needs of most electronic products, multilayer board has been greatly developed, the demand is greatly increased, multi-layer pcb circuit board rapi
With the continuous development of The Times, the current type of electronic products is more and more, so pcb circuit board design engineers in the early design, in order to determine the feasibility of the program, will keep on the circuit board proofin
With the rapid development of the electronic industry, the demand for circuit boards is more and more, before the mass production of circuit boards, many customers will choose proofing, but the market PCB proofing manufacturers are mixed, not only the del
Solder resistance coating is a kind of protective material suitable for the exterior surface of circuit board. The solder resistance coating will cover the entire surface of the board, including metal and dielectric materials, except for the pads and hole
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
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.
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