F4B
High Frequency PCB
F4B
(PTFE based) is a reliable alternative RF material for antenna, filter and
power amplifier. This is a brand of Chinese material which has advantages in
price and volume production.
Today
we talk about high frequency circuit board built on Wangling's F4B substrates.
F4B
series high frequency materials are Wangling's products of PTFE woven glass
fabric. Today, we'll learn the woven
glass fabric with ceramic filler: F4BTM-1/2. It's widely used in navigation,
radar, satellite communication, 4G, 5G communications etc. with advantages in
price and stableness in quality.
F4BTM-1/2
has wide range of dielectric constant (DK) 2.55 to 10.2, and wide laminate
thickness, 0.254mm to 10.0mm. Here I list them in the table and keep 3 seconds,
you can make a screenshot for the purpose of learning.
|
Name
|
Test condition
|
Unit
|
Value
|
|
Density
|
Normal state
|
g/ cm3
|
2.1～2.35
|
|
Moisture
Absorption
|
Dip in the distilled
water of 20±2℃ for 24
hours
|
%
|
≤0.02
|
|
Operating
Temperature
|
High-low temperature
chamber
|
℃
|
-50℃～+260℃
|
|
Thermal
Conductivity
|
|
W/m/k
|
0.8
|
|
CTE （typical）
|
0～100℃ （εr ：2.1~2.3）
|
ppm/℃
|
25（x）
|
|
34（y）
|
|
252（z）
|
|
CTE （typical）
|
0～100℃ （εr ：2.3~2.9）
|
ppm/℃
|
14（x）
|
|
21（y）
|
|
173（z）
|
|
CTE （typical）
|
0～100℃ （εr ：2.9~3.5）
|
ppm/℃
|
12（x）
|
|
15（y）
|
|
95（z）
|
|
Shrinkage
Factor
|
2 hours in boiling
water
|
%
|
0.0002
|
|
Surface Resistivity
|
500V DC
|
Normal state
|
M·Ω
|
≥1×104
|
|
Constant
humidity and temperature
|
≥1×103
|
|
Volume Resistivity
|
Normal state
|
MΩ.cm
|
≥1×106
|
|
Constant
humidity and temperature
|
≥1×105
|
|
Pin Resistance
|
500V DC
|
Normal state
|
MΩ
|
≥1×105
|
|
Constant humidity and temperature
|
≥1×103
|
|
Surface dielectric strength
|
Normal state
|
d=1mm（Kv/mm）
|
≥1.2
|
|
Constant
humidity and temperature
|
≥1.1
|
|
Dielectric Constant
|
10GHZ
|
εr
|
2.20，2.55，2.65，3.0，3.5 （±2%）
|
|
Dissipation Factor
|
10GHZ
|
tgδ
|
2.2
|
≤7×10-4
|
|
2.55~2.65
|
≤1×10-3
|
|
3.0~3.5
|
≤1.5×10-3
|
OK.
copper weight with half ounces, 1 ounce and 2 ounces are available.
Let's
see our PCB capability on F4BTM-1/2.
We
can provide you with single sided board, double sided board, multilayer board
and FR-4 hybrid types.
The
common color of solder mask is green, black or no color used.
The
surface finish usually used is bare copper (no finish), Hot Air Soldering Level
(HASL), immersion gold and immersion silver etc.
We can
provide you with prototype, small batches and volume production services.
Should
you have any questions, please feel free to contact us.
Call Us Now !
Tel : +86 755 27374946
Order Online Now !
Email : info@bichengpcb.com
