China Wholesale Matte Black Pcb Quotes - 2 Layer F4B OSP PCB – Huihe
China Wholesale Matte Black Pcb Quotes - 2 Layer F4B OSP PCB – Huihe Detail:
Effect of different types of copper foil on electrical properties
In the design of high-frequency PCB, designers usually pay more attention to the dielectric constant (DK) and tangent loss (DF) of PCB when selecting materials, and only pay attention to the thickness of copper foil when selecting copper foil, which is easy to ignore the influence of different types of copper foil roughness on the electrical properties of products.
SEM analysis of the micro morphology of different types of copper foil and dielectric contact surface shows that the roughness of different types of copper foil is quite different. In the design of microstrip line, the roughness of copper foil and dielectric contact surface will directly affect the insertion loss of the whole transmission line.
Material parameters of F4B PCB
|
Material type |
Model |
Filling Material |
Dk（@10GHZ） |
Df（@10GHZ） |
|
F4B-1/2 |
PTFE+Glass cloth |
2.55/2.65 |
≤0.001 |
|
|
F4BK |
F4BK225 |
PTFE+Glass cloth |
2.55 |
≤0.001 |
|
F4BK265 |
PTFE+Glass cloth |
2.65 |
≤0.001 |
|
|
F4BK300 |
PTFE+Glass cloth |
3 |
≤0.001 |
|
|
F4BK350 |
PTFE+Glass cloth |
3.5 |
≤0.001 |
|
|
F4BM |
F4BM220 |
PTFE+Glass cloth |
2.2 |
≤0.007 |
|
F4BM225 |
PTFE+Glass cloth |
2.55 |
≤0.007 |
|
|
F4BM265 |
PTFE+Glass cloth |
2.65 |
≤0.007 |
|
|
F4BM300 |
PTFE+Glass cloth |
3 |
≤0.007 |
|
|
F4BM350 |
PTFE+Glass cloth |
3.5 |
≤0.007 |
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Well-run equipment, expert income workforce, and far better after-sales expert services; We are also a unified large family, anyone stick to the corporate value "unification, dedication, tolerance" for China Wholesale Matte Black Pcb Quotes - 2 Layer F4B OSP PCB – Huihe , The product will supply to all over the world, such as: Philadelphia, Korea, Lisbon, We attained ISO9001 which provides solid foundation for our further development. Persisting in "High quality, Prompt Delivery, Competitive Price", we have established long-term cooperation with clients from both overseas and domestically and get new and old clients' high comments. It is our great honor to meet your demands. We are sincerely expecting your attention.
By Marcy Real from Oslo - 2017.11.29 11:09
The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
By Betsy from Pakistan - 2017.09.22 11:32
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