Multi-layer circuit board factory: multi-layer circuit board proofing matters needing attention
At present, various enterprises pay special attention to the quality of products. In the manufacturing industry, the improvement of product quality also plays an important role in the reputation of the industry. Multi-layer circuit board has good quality in the circuit board manufacturing industry, so many manufacturers of multi-layer circuit board will calibrate the multi-layer circuit board before production to verify whether the performance of the circuit design meets the requirements.
1, Material: First, explain to the circuit board manufacturer to confirm the material used to calibrate multilayer circuit board . Currently, FR4 is widely used. Its main material is epoxy resin stripped fiber cloth board, which is not only environmentally friendly but also more durable.
2, Board Layer: Secondly, the number of layers of multilayer circuit board proofing needs to be explained and confirmed to the circuit board manufacturer to ensure that multilayer board products that meet the design requirements are produced.
3, solder resist and silk screen color: now the general circuit board manufacturers can provide a variety of colors for customers to choose from, but mostly green, while silk screen is white by default, so if there are specific color requirements, you must make it clear to the manufacturer of multilayer circuit board proofing.
4, whether the via hole is covered with solder resist: because whether the via hole is covered with solder resist will directly determine whether the via hole is insulated, it is necessary to fully explain the coverage of solder resist with the manufacturer when proofing multilayer circuit board .
5, Surface Coating: At present, tin spraying and gold plating are commonly used for surface treatment of multilayer circuit board proofing. It is necessary to explain to the manufacturer which method to use.
6, Quantity: The key point is to make clear the specific quantity of multilayer circuit board proofing, because the quantity is directly related to the cost.
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