Influencing Factors Of Impedance In PCB Circuit Board Processing

- Sep 22, 2017-

Influencing factors of impedance in PCB circuit board processing

 

Under normal PCB design conditions, the following major factors are fabricated by the PCB and have an impact on the impedance:

 

1 the dielectric layer thickness is directly proportional to the impedance value.

2. The dielectric constant is inversely proportional to the impedance.

3. the thickness of copper foil is inversely proportional to the impedance.

4. The line width is inversely proportional to the impedance.

5. The thickness of the ink is inversely proportional to the impedance.

 

So we should pay attention to the above points when we control the impedance.

 


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