TF High Frequency PCB Supplier

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TF High Frequency PCB

Introduction

This series of laminates is a composite of microwave and temperature-resistant polytetrafluoroethylene (PTFE) resin material and ceramics. It does not contain fiberglass cloth. The dielectric constant is precisely adjusted by adjusting the ratio between ceramics and PTFE resin. It has special production processes and exhibits excellent dielectric performance and high reliability. TF refers to the smooth surface material without copper cladding, TF-1 refers to the material with copper cladding on one side, and TF-2 refers to the material with copper cladding on both sides.

Product Features:

The dielectric constant ranges from 3 to 16 and is stable. Common dielectric constants include 3.0, 6.0, 9.2, 9.6, 10.2, and 16, with low dielectric loss.
Used for the fabrication of microwave and millimeter-wave printed circuit boards.
Long-term working temperature is higher than TP materials and can be used in the range of -80°C to +200°C.
Thickness options range from 0.635mm to 2.5mm.
Resistant to radiation and low outgassing.
Convenient for PCB processing, can be processed using methods suitable for thermoplastic materials.

Product Models & Data Sheet

The data sheet contains technical parameters and product features for the specified product models. Let's explore the details:

Dielectric Constant: The dielectric constant is a measure of a material's ability to store electrical energy in an electric field. The test conditions vary based on the dielectric constant value. For dielectric constants ≤11, the test condition is 10GHz, while for dielectric constants >11, the test condition is 5GHz. The product models TF, TF-1, and TF-2 have different dielectric constant values as follows:

TF300: 3.0±0.06
TF440: 4.4±0.09
TF600: 6.0±0.12
TF615: 6.15±0.12
TF920: 9.2±0.18
TF960: 9.6±0.19
TF1020: 10.2±0.2
TF1600: 16.0±0.4
It's worth noting that the dielectric constant can be customized within the range of 3.0 to 16.

Tolerance of Dielectric Constant: The tolerance of the dielectric constant is specified based on the range. For dielectric constants ranging from 3.0 to 11.0, the tolerance is ±2%. For dielectric constants ranging from 11.1 to 16.0, the tolerance is ±2.5%.

Loss Tangent: The loss tangent measures the dissipation of energy in a dielectric material. It is provided for different dielectric constant ranges and test conditions. The values are as follows:

Dielectric Constant 3.0 to 9.5 at 10GHz: 0.0010
Dielectric Constant 9.6 to 11.0 at 10GHz: 0.0012
Dielectric Constant 11.1 to 16.0 at 5GHz: 0.0014

Dielectric Constant Temperature Coefficient: The dielectric constant temperature coefficient indicates the change in dielectric constant with temperature. It is provided for different dielectric constant ranges and temperature conditions. The values are expressed in parts per million per degree Celsius (PPM/℃). Here are the values:

Dielectric Constant 3.0 to 4.5: -55ºC to 150ºC, -60 PPM/℃
Dielectric Constant 6.0 to 6.5: -55ºC to 150ºC, -210 PPM/℃
Dielectric Constant 9.0 to 11.0: -55ºC to 150ºC, -260 PPM/℃
Dielectric Constant 12.0 to 16.0: -55ºC to 150ºC, -205 PPM/℃

Peel Strength: Peel strength measures the strength of adhesion between layers of the product. The values are provided for two different states:

1 OZ Normal State: >0.6 N/mm
1 OZ After AC Humidity Test: >0.4 N/mm

Volume Resistivity: Volume resistivity measures the resistance to electrical current through the volume of the material. The value in the normal state with a voltage of 500V is greater than 1×10^9 MΩ.cm.

Surface Resistivity: Surface resistivity measures the resistance to electrical current across the surface of the material. The value in the normal state with a voltage of 500V is greater than 1×10^7 MΩ.

Coefficient of Thermal Expansion (XY Z): The coefficient of thermal expansion indicates the change in size of the material with temperature. It is provided for different dielectric constant ranges and temperature conditions. The values are expressed in PPM/℃. Here are the values:

Dielectric Constant 3.00 to 6.15: -55ºC to 150ºC, 60, 60, 80 PPM/℃
Dielectric Constant 6.16 to 11.0: -55ºC to 150ºC, 50, 50, 65 PPM/℃
Dielectric Constant 11.1 to 16.0: -55ºC to 150ºC, 40, 40, 55 PPM/℃

Water Absorption: Water absorption measures the amount of water absorbed by the material. The test is conducted at a temperature of 20±2℃ for 24 hours, and the value is reported to be ≤0.05%.

Long-Term Operating Temperature: The long-term operating temperature range is tested in a high-low temperature chamber and spans from -80ºC to 200ºC.

Material Composition: The PCB material is composed of Polytetrafluoroethylene (PTFE), ceramic, and paired with ED copper foil.

Product Technical Parameter

Product Models & Data Sheet

Product Features

Test Conditions

Unit

TF TF-1 TF-2

Dielectric Constant

When the dielectric constant is ≤11, the test condition is 10GHz.

When the dielectric constant is >11, the test condition is 5GHz.

3.0±0.06

4.4±0.09

6.0±0.12

6.15±0.12

9.2±0.18

9.6±0.19

10.2±0.2

16.0±0.4

The dielectric constant can be customized within the range of 3.0～16

Tolerance of Dielectric Constant

Dielectric Constant 3.0～11.0

±2%

Dielectric Constant 11.1～16.0

±2.5%

Loss Tangent

Dielectric Constant 3.0～9.5

10GHz

0.0010

Dielectric Constant 9.6～11.0

10GHz

0.0012

Dielectric Constant 11.1～16.0

5GHz

0.0014

Dielectric Constant Temperature Coefficient

Dielectric Constant 3.0～4.5

-55 º~150ºC

PPM/℃

-60

Dielectric Constant 6.0～6.5

-55 º~150ºC

PPM/℃

-210

Dielectric Constant 9.0～11.0

-55 º~150ºC

PPM/℃

-260

Dielectric Constant 12.0～16.0

-55 º~150ºC

PPM/℃

-205

Peel Strength

1 OZ Normal State

N/mm

>0.6

1 OZ ?After AC Humidity Test

N/mm

>0.4

Volume Resistivity

Normal State 500V

MΩ.cm

>1×10^9

Surface Resistivity

Normal State 500V

MΩ

>1×10^7

Coefficient of Thermal Expansion
(XY Z)

Dielectric Constant 3.00～6.15

-55 º~150ºC

PPM/℃

60,60,80

Dielectric Constant 6.16～11.0

-55 º~150ºC

PPM/℃

50,50,65

Dielectric Constant 11.1～16.0

-55 º~150ºC

PPM/℃

40,40,55

Water Absorption

20±2℃, 24 hours

≤0.05

Long-Term Operating Temperature

High-Low Temperature Chamber

℃

-80～200ºC

Material Composition

Polytetrafluoroethylene (PTFE), ceramic, paired with ED copper foil.

The density and thermal conductivity data for materials with different dielectric constants are as follows:

Product Features

Unit

Dielectric Constant

3.0

4.4

6.0

6.15

9.2

9.6

10.2

16.0

Density

g/cm3

2.41

2.58

2.78

2.79

3.0

3.02

3.07

3.27

Thermal Conductivity

W/(M.K)

0.30

0.32

0.45

0.46

0.66

0.68

0.7

0.75

Our PCB Capability (TF series)

The PCB capability includes following items:

Layer count: The PCB can be manufactured as a single-sided or double-sided board.

Copper weight: The PCB can have copper weights of 1oz (35µm) or 2oz (70µm).

Dielectric thickness (Dielectric thickness or overall thickness): The PCB can have dielectric thickness options of 0.635mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, or 2.5mm.

PCB size: The maximum size of the PCB is ≤240mm X 240mm.

Solder mask: The PCB can be manufactured with solder masks of various colors such as green, black, blue, yellow, red, and more.

Surface finish: The PCB can have different surface finishes, including bare copper, HASL (Hot Air Solder Leveling), ENIG (Electroless Nickel Immersion Gold), immersion silver, immersion tin, OSP (Organic Solderability Preservative), pure gold, ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold), and more.

PCB Capability (TF Series)
PCB Material:	Polyphenylene ether, ceramic
Designation (TF Series)	Designation	DK	DF
	TF300	3.0±0.06	0.0010
	TF440	4.4±0.09	0.0010
	TF600	6.0±0.12	0.0010
	TF615	6.15±0.12	0.0010
	TF920	9.2±0.18	0.0010
	TF960	9.6±0.19	0.0012
	TF1020	10.2±0.2	0.0012
	TF1600	16.0±0.4	0.0014
Layer count:	Single Sided, Double Sided PCB
Copper weight:	1oz (35µm), 2oz (70µm)
Dielectric thickness (Dielectric thickness or overall thickness)	0.635mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm
PCB size:	≤240mm X 240mm
Solder mask:	Green, Black, Blue, Yellow, Red etc.
Surface finish:	Bare copper, HASL, ENIG, Immersion silver, Immersion tin, OSP, Pure gold, ENEPIG etc..

A TF PCB and Applications

Displayed on the screen is a double-sided 2.0mm TP high-frequency PCB with a black solder mask and immersion gold on the pads. TF high-frequency PCBs are utilized in applications of microwave and millimeter-wave printed circuit boards, such as millimeter-wave radar sensors, antennas, transceivers, modulators, multiplexers, as well as power supply equipment and automatic control equipment.