Factors affecting PCB prices
When we design a project, we care more about layout and wiring, and often overlook the additional PCB manufacturing cost in the design. We discuss what factors in the design affect the price of pcb and avoid increasing costs for customers.
- Number of wiring layers: The number of layers is much better, but the price rises linearly with the number of layers. The higher the number of layers, the more the price doubles.
- Via: As much as possible, 0.25mm or more, less than 0.25mm, most manufacturers have to charge.
Hole in the plate: Usually the manufacturer has to increase the cost. Try not to use it unless there are restrictions on the signal and layout.
Back drilling: high-speed signals such as backplane, do not use other.
Line width: Normally less than 6mil, manufacturers should increase the charge.
Sheets (high tg halogen-free high frequency = non-conventional sheet) increase the procurement cycle and increase production costs. Some high-frequency plates can be mixed with ordinary plates, which can reduce costs.
HDI and blind burial: The cost increase is very large, and it is best not to use if the package is allowed. (0.65 and above bga packages can be fanned out through holes, some 0.5bga packages can be fanned out through holes, mainly looking at package pads and available pins)
The surface process (Shen Jin, Shen Xi, Shenyin, Jinjiu =) increases the related costs, which are mainly determined by the customer and can be explained to the customer during design. b: Add a point: copper thickness, PCB area, the number and type of holes, the thickness of the gold layer treated on the surface, and even the delivery date will affect the price of the PCB. It is difficult to consider. Because some product prices are strictly controlled, you need a lot of attention, such as PCB cascading, via backdrill and plug hole, especially the choice of PCB materials; some products, not particularly concerned about cost, this time can be willful . Of course, in general, we must consider the reliability when controlling costs, because sometimes the cost of PCB is not the most expensive (except for some high-end PCBs).
Grace Zheng
Email: sales06@andwinpcb.com
Skype: andwinpcb