China Wholesale Ic Boards Manufacturers - 2 Layer F4B OSP PCB – Huihe
China Wholesale Ic Boards Manufacturers - 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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We have now sophisticated machines. Our solutions are exported to the USA, the UK and so on, enjoying a great reputation amid consumers for China Wholesale Ic Boards Manufacturers - 2 Layer F4B OSP PCB – Huihe , The product will supply to all over the world, such as: Porto, Sudan, Detroit, Based on our guiding principle of quality is the key to development, we continually strive to exceed our customers' expectations. As such, we sincerely invite all interested companies to contact us for future cooperation, We welcome old and new customers to hold hands together for exploring and developing; For more information, be sure to feel free to contact us. Thanks. Advanced equipment, strict quality control, customer-orientation service, initiative summary and improvement of defects and extensive industry experience enable us to guarantee more customer satisfaction and reputation which, in return, brings us more orders and benefits. If you are interested in any of our merchandise, make sure you feel free to contact us. Inquiry or visit to our company are warmly welcome. We sincerely hope to start a win-win and friendly partnership with you. You can see more details in our website.
By Frederica from Birmingham - 2018.06.03 10:17
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!
By Marjorie from Greenland - 2017.01.28 18:53
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