F4BM220-High-Frequency-PCB-3.0mm-PTFE-DK-2.2

WELCOME TO BICHENG

Home
Company
Quality
Manufacture
Career
PCB Boards
- Newly Shipped RF PCB
- High Frequency PCB
Contact Us

	PCB Prototypes

	HDI PCB

	Rigid-flex PCB

	Multi-layer PCB

	High Speed PCB

	Low Loss PCB

	Hybrid PCB

	Rogers PCB

	Ceramic PCB

	Flexible Circuits

	F4B PCB

	Taconic PCB

F4BM220-High-Frequency-PCB-3.0mm-PTFE-DK-2.2-with-1oz-Copper-HASL-Lead-Free-for-Superior-Signal-Integrity

(Printed Circuit Boards are custom-made products. The picture and parameters shown are for reference only.)

Hi everyone,

Today, let’s discuss a high-frequency circuit board from the F4BM series, specifically designed with a 3.0mm thickness.

The F4BM laminates are manufactured through a precise scientific process, combining fiberglass cloth, polytetrafluoroethylene resin, and polytetrafluoroethylene film under strict pressing conditions. Compared to the F4B series, the F4BM offers enhanced electrical performance, featuring a broader range of dielectric constants, reduced dielectric loss, higher insulation resistance, and improved stability. This makes it a reliable alternative to similar international products.

Basic specifications

Layer count:	Double sided
Base material:	F4BM220 DK 2.2
Dimension:	61 x 62mm
Finished thickness	3.0mm ±10%
Finished Copper weight:	1oz
SMOBC:	No
Surface finish:	HASL Pb free

This board is designed as a double-sided PCB, utilizing F4BM220 as the substrate with a dielectric constant (DK) of 2.2. It measures 61mm in length and 62mm in width, with a finished thickness of 3.0mm. The board features a 1.0oz finished copper weight and comes without solder mask or silkscreen. The surface finish is OSP (Organic Solderability Preservative).

Now, let’s take a closer look at the stack-up details:

The top and bottom layers are finished with 1oz copper. Positioned between these two copper layers is the F4BM220 dielectric material, which has a dielectric constant (DK) of 2.2 and a thickness of 3.0mm.

Here is the photo of this board. The standard color of the F4BM220 PCB is brown.

Our PCB Capability (F4BM)

PCB Capability (F4BM)
PCB Material:	PTFE glass fiber cloth copper clad laminates
Designation (F4BM )	F4BM	DK (10GHz)	DF (10 GHz)
	F4BM217	2.17±0.04	0.0010
	F4BM220	2.20±0.04	0.0010
	F4BM233	2.33±0.04	0.0011
	F4BM245	2.45±0.05	0.0012
	F4BM255	2.55±0.05	0.0013
	F4BM265	2.65±0.05	0.0013
	F4BM275	2.75±0.05	0.0015
	F4BM294	2.94±0.06	0.0016
	F4BM300	3.00±0.06	0.0017
Layer count:	Single Sided, Double Sided PCB, Multilayer PCB, Hybrid PCB
Copper weight:	0.5oz (17 µm), 1oz (35µm), 2oz (70µm)
Dielectric thickness (or overall thickness)	0.127mm (dielectric), 0.2mm, 0.25mm, 0.5mm, 0.508mm, 0.762mm, 0.8mm, 1.0mm, 1.5mm, 1.524mm, 1.575mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm, 12.0mm
PCB size:	≤400mm X 500mm
Solder mask:	Green, Black, Blue, Yellow, Red etc.
Surface finish:	Bare copper, HASL, ENIG, Immersion silver, Immersion tin, OSP, Pure gold, ENEPIG etc..

The F4BM material provides a broad range of dielectric constants, from 2.17 to 3.0, and offers flexible board thickness options, ranging from 0.13mm to 12.0mm. We are fully capable of delivering end-to-end services, including prototype development, small-scale production, and large-volume manufacturing.

Should you have any questions, feel free to contact us. Thank you for your time and interest!

Appendix: Data Sheet (F4BM)

Product Technical Parameters

Product Model & Data Sheet

Product Features

Test Conditions

Unit

F4BM217

F4BM220

F4BM233

F4BM245

F4BM255

F4BM265

F4BM275

F4BM294

F4BM300

Dielectric Constant (Typical)

10GHz

2.17

2.2

2.33

2.45

2.55

2.65

2.75

2.94

3.0

Dielectric Constant Tolerance

±0.04

±0.05

±0.06

Loss Tangent (Typical)

10GHz

0.001

0.0011

0.0012

0.0013

0.0015

0.0016

0.0017

20GHz

0.0014

0.0015

0.0017

0.0018

0.0019

0.0021

0.0023

0.0025

Dielectric Constant Temperature Coefficient

-55ºC～150ºC

PPM/℃

-150

-142

-130

-120

-110

-100

-92

-85

-80

Peel Strength

1 OZ F4BM

N/mm

>1.8

1 OZ F4BME

N/mm

>1.6

Volume Resistivity

Standard Condition

MΩ.cm

≥6×10^6

Surface Resistivity

Standard Condition

MΩ

≥1×10^6

Electrical Strength (Z direction)

5KW，500V/s

KV/mm

>23

>25

>28

>30

Breakdown Voltage (XY direction)

5KW，500V/s

>30

>32

>34

>35

>36

Coefficientof Thermal Expansion

XY direction

-55 º~288ºC

ppm/ºC

25, 34

22, 30

20, 25

16, 21

14, 17

14, 16

12, 15

Z direction

-55 º~288ºC

ppm/ºC

240

205

187

173

142

112

Thermal Stress

260℃, 10s，3 times

No delamination

Water Absorption

20±2℃, 24 hours

≤0.08

Density

Room Temperature

g/cm3

2.17

2.18

2.20

2.22

2.25

2.28

2.29

Long-Term Operating Temperature

High-Low Temperature Chamber

℃

-55～+260

Thermal Conductivity

Z direction

W/(M.K)

0.24

0.28

0.30

0.33

0.36

0.38

0.41

0.42

PIM

Only applicable to F4BME

dBc

≤-159

Flammability

UL-94

V-0

Material Composition

PTFE, Fiberglass Cloth
F4BM paired with ED copper foil, F4BME paired with reverse-treated (RTF) copper foil.

Hot Tags:

F4BM220 High Frequency PCB

3.0mm F4BM220 PCB

F4BM220 Printed Circuit Board

F4BM Series Laminates

F4BM PTFE PCB