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TF600 Copper Clad Laminates

 

 

Introduction

 

TF600 laminate is a premium high-frequency PCB material and a typical representative of the TF series, composed of microwave-grade, temperature-resistant polytetrafluoroethylene (PTFE) resin and high-purity ceramics, with no fiberglass cloth. Its core advantage is a precisely tunable dielectric constant, adjusted by modifying the ratio of ceramics to PTFE resin during production. Produced via a special process, TF600 boasts excellent dielectric performance, high reliability and strong thermal stability, suitable for critical RF and microwave applications. Available in three variants—TF600 (unclad), TF600-1 (single-sided copper-clad) and TF600-2 (double-sided copper-clad)—it caters to diverse PCB design needs while retaining all core advantages.

 

TF series 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 3.016

Tolerance of Dielectric Constant

Dielectric Constant 3.011.0

/

±2%

Dielectric Constant 11.116.0

/

±2.5%

Loss Tangent

Dielectric Constant 3.09.5

10GHz

/

0.0010

Dielectric Constant 9.611.0

10GHz

/

0.0012

Dielectric Constant 11.116.0

5GHz

/

0.0014

Dielectric Constant Temperature Coefficient

Dielectric Constant 3.04.5

-55 º~150ºC

PPM/℃

-60

Dielectric Constant 6.06.5

-55 º~150ºC

PPM/℃

-210

Dielectric Constant 9.011.0

-55 º~150ºC

PPM/℃

-260

Dielectric Constant 12.016.0

-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

>1×10^7

Coefficient of Thermal Expansion
(XY Z)

Dielectric Constant 3.006.15

-55 º~150ºC

PPM/℃

60,60,80

Dielectric Constant 6.1611.0

-55 º~150ºC

PPM/℃

50,50,65

Dielectric Constant 11.116.0

-55 º~150ºC

PPM/℃

40,40,55

Water Absorption

20±2℃, 24 hours

%

≤0.05

Long-Term Operating Temperature

High-Low Temperature Chamber

-80200ºC

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

 

A TF600 Laminate and Applications

Displayed on the screen is the TF600 laminate, a premium high-frequency PCB material widely utilized in microwave and millimeter-wave printed circuit board applications. Specifically, TF600 high frequency circuit material is well-suited for millimeter-wave radar sensors, antennas, transceivers, modulators, multiplexers, as well as power supply equipment and automatic control equipment, leveraging its excellent performance to meet the high-demand requirements of these critical electronic systems.