At present, various companies pay special attention to the quality of their products. In the manufacturing industry, the improvement of product quality also plays an important role in the reputation of the industry. Multilayer circuit boards have good quality in the circuit board manufacturing industry. Therefore, many related manufacturers of multilayer circuit boards will calibrate the multilayer circuit boards before production to verify whether the performance of the circuit design meets the requirements.

1. Material: First, please explain with the circuit board manufacturer to confirm the material used to calibrate the multilayer circuit board. At present, the more commonly used FR4, the main material is epoxy resin peeled fiber cloth board, which is not only environmentally friendly but also more durable.

2. Board layer: Secondly, the number of layers of multi-layer circuit board proofing needs to be confirmed by the circuit board manufacturer to ensure that the multi-layer board product that meets the design requirements is produced.

3. Solder mask and silk screen color: Now the general circuit board manufacturers can provide a variety of colors for customers to choose, but green is the majority, while silk screen is white by default, so if there are specific requirements for color, it must be more and more. The manufacturer of the multi-layer circuit board proofing made it clear.

4. Whether the vias are covered with solder mask: because whether the vias are covered with solder mask will directly determine whether the vias are insulated, so when proofing the multi-layer circuit board, the coverage of the solder mask should be fully explained with the manufacturer.

5. Surface coating: The surface treatment of multi-layer circuit board proofing currently has two coatings: tin spraying and gold plating. It is necessary to explain to the manufacturer which method to use.

6. Quantity: The key point is to clarify the specific quantity of multi-layer circuit board proofing, because the quantity is directly related to the cost issue.