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
Copper electroplating is one of the most widely used precoatings to improve the binding force of coatings, which plays an important role in improving the binding force and corrosion resistance between coatings.
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
Different PCB boards have different pads, they all have different roles, in some ways is indispensable.
According to the quantity, it can be divided into urgent proofing, small batch in large batch, and divided into simple board and high difficulty board according to the production difficulty. When choosing a factory, customers should first identify their o
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
Solder pad refers to the part of the board to be coated with green oil. In fact, the solder mask uses a negative output, so when the shape of the solder mask is mapped to the board, it is not green oil solder, but exposed copper. Usually in order to incre
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0 ohm resistance is the resistance of 0 ohm, used in PCB design and other aspects, is a kind of ideal resistance. Zero ohm resistance is not no resistance, it's just close to zero ohm. How much current can be passed through the 0 ohm resistance of each pa
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 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.
