A well PCB design is the important step on PCB board production, but PCB material is the key bridge to make a good PCB board.
How to choose PCB material is very important.
When Choosing PCB board meterial, it must meet the needs of the design and production and cost to achieve a balance between the point.
Design requirements include electrical and mechanism of these two parts. Usually in the design of very high speed PCB board (more than GHz frequency) this material issue will be more important.
For example, now commonly used FR-4 material, the frequency of a few GHz when the dielectric loss (loss dielectric) will have a great impact on the signal attenuation, may not be applicable.
On the electrical, we should pay attention to the dielectric constant (constant dielectric) and dielectric loss in the design of the frequency is applicable.
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