Key factors affecting the cost of 4-layer PCB-深圳市海博精密电路有限公司

The cost calculation of a 4-layer PCB is significantly different from that of a 2-layer PCB. There are many factors that can affect the cost of a 4-layer circuit board, some of which include:

The use of impedance control: Using impedance control will increase the cost of a 4-layer circuit board. Impedance control requires precision manufacturing and multiple tests to confirm the required accuracy.

Layer stacking: A 4-layer circuit board can have various combinations of dielectric layers and copper layers. For example, having more than one core will increase the cost of PCB.

Using advanced technology: The use of HDI and other advanced features will significantly increase the cost of PCB. Using HDI not only introduces finer wiring, but also increases costs by adding blind holes on the PCB.

Copper weight: The weight of copper used accounts for a significant portion of the cost of a 4-layer PCB. The more copper is used, the higher the cost of PCB. The amount of copper used depends on the expected current and the signal integrity of the PCB.

Other factors such as shape and size, surface finish, order quantity, materials used, etc. remain unchanged for all PCBs.

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