How to choose a reliable circuit board proofing manufacturer
When it comes to PCB, people in the industry are no strangers. PCB is the circuit board that we talk about everyday. Almost all electronic products we use will use circuit boards and play a key role in them. Now, many manufacturers also have a lot of demand for circuit boards, but now there are many circuit board proofing manufacturers on the market, mixed, how to choose a reliable circuit board proofing manufacturers. first clear their own dosage, according to their own needs to find the corresponding circuit board proofing manufacturers. At present, there are many types of manufacturers in the market, including those who make large quantities, those who make military boards, those who make soft boards, those who make small and medium batches of proofing, and those who only make simple boards.
There is no best, only the most appropriate. Find a matching circuit board proofing manufacturer, you can first choose to try the proofing. The second choice of formal and professional circuit board proofing manufacturers, must look at their production capacity. Specifically look at the following aspects: The first thing to see is whether the process from opening to surface treatment to later electronic testing and milling can be completed independently. The key is mainly in light imaging, etching, solder resist, surface treatment, drilling. In addition to the process capacity, small domestic factories usually produce
2 to 4 layers, high production of 8 layers, and powerful manufacturers can achieve the standard 12 or even 26 layers. Then the parameters provided by the manufacturer include process capability, line width and line spacing, copper thickness, solder mask thickness, etc. It is also important to carry out strict quality inspection on the products of circuit board proofing. Before entering the market, the circuit board factory ensures that the appearance of each product is intact and the performance is complete. The more formal the manufacturer, the higher the requirements for quality inspection and the more professional the process.
Then, regarding after-sales service, it is also important to choose a formal and professional circuit board proofing manufacturer. After purchasing the product, there may be no problem when the product leaves the factory, but in specific use, it may be due to some reasons,
PCB board will have problems. When there is a problem with the product, a series of after-sales services provided by the circuit board proofing manufacturer can ensure the normal use of the product and ensure the interests of consumers. Finally, regarding the price, due to the different scale and production capacity of regular professional circuit board proofing manufacturers, different quotations are given, and reasonable acceptable quotations are selected to cooperate with manufacturers. Don't choose irregular professional circuit board manufacturers because you are greedy for cheap prices, so there will be many follow-up problems.
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In the graphic electroplating process method of multi-layer circuit board factory, because the circuit pattern is easy to produce side etching in the etching process, the tin-lead alloy plating part is in the air and produces a suspension layer, which is easy to fall off, resulting in a short circuit caused by bridging between wires. Multilayer circuit board factory uses infrared hot melt process method, can make the exposed copper surface get very good protection. However, when it is used for infrared thermal melting of multi-layer circuit boards, the phenomenon of delamination and foaming between layers of multi-layer circuit boards is very serious due to high temperature, resulting in a very low yield of multi-layer circuit boards. _Blind buried hole circuit board_multilayer circuit board
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Before designing multilayer circuit boards, the multilayer circuit board structure must be determined according to the circuit scale, circuit board size and electromagnetic compatibility (EMC) requirements. That is to decide whether to use a 4-layer, 6-layer or higher multilayer circuit board. Once the number of layers is determined, the multilayer circuit board factory has decided to determine the placement of the electrical layers in the multilayer circuit board and how to distribute different signals on these layers. This is the choice of multilayer circuit board factory laminated structure.
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