Best China Wholesale Pcb Printed Circuit Factories - 2 Layer F4B OSP PCB – Huihe Manufacturer and Factory

China Wholesale Pcb Printed Circuit Factories - 2 Layer F4B OSP PCB – Huihe

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China Wholesale Pcb Printed Circuit Factories - 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

Equipment display

5-PCB circuit board automatic plating line

Automatic Plating Line

7-PCB circuit board PTH production line

PTH line

6 Layer Rogers+ FR4 PCB (4)

LDI

6 Layer Rogers+ FR4 PCB (2)

CCD Exposure Machine

Application

Communication Equipment

Communications

14 Layer Blind Buried Via PCB

Security electronics

Rail Transit

Railtransit

Our factory

woleisbu
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manufacturing (1)

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