The New Technology of Rogers CLTE-MW PCB Laminate

The Rogers CLTE-MW is a ceramic-filled PTFE composite laminate that is reinforced using woven glass for that extra durability. These features give this laminate enough efficiency to handle 5G plus other wave applications. In addition, it has several features and properties that make it unique and special. But is this laminate worth trying out? And if so, which other features does it bring to the table?

About the Rogers CLTE-MW laminate, what makes them unique?

Rogers CLTE-MW laminates offer PCB assemblers a cost-effective, high-performance material. They bear electrical and physical constraints, making them great for applications with thickness limitations. What’s more, this laminate comes in seven different thickness options. You can choose from a thickness of 3 – 10 mils according to your project’s requirements. With this thickness feature, you get that ideal and perfect signal to ground spacing which is essential for 5G transmission.

The Rogers CLTE-MW laminate has woven glass reinforcement and a fillers loading that is pretty high. These two features help the laminate propagate electromagnet waves efficiently. They also improve the laminate’s durability and stability, making it one of a kind.

Features of the Rogers CLTE-MW laminate

The Rogers CLTE-MW laminates have a pretty low moisture absorption rate of about 0.03%. Due to this feature, you get optimal performance from this laminate over a wide range of application environments.

The Rogers CLTE-MW laminates are also great in terms of thermal conductivity. Their thermal conductivity stands at 0.42 W/mK, which allows heat dissipation to take place aggressively. The laminate also has a higher dielectric strength when you compare it to other laminates. Its dielectric strength hits a whooping 630 V/mil. You can hence ensures that an excellent z-axis insulation exists between the conductor layers.

The Rogers CLTE-MW laminate has a flammability rating of UL94 V-0. You can hence utilize this laminate for commercial applications.

Other features and benefits that make the Rogers CLTE-MW one of a kind

Great dimensional stability

The Rogers CLTE-MW laminate has incredible dimensional stability.

A low Z, X, and Y-axis CTE

The Rogers CLTE-MW laminate has a low Z, X, and Y-axis CTE. Its mechanical performance is hence reliable even when put in an environment that is thermally challenging.

Low loss tangent

The Rogers CLTE-MW laminate has a loss tangent that is pretty low; this reduces circuit losses, improving the PCB’s efficiency.

Applications of the Rogers CLTE-MW laminate

The Rogers CLTE-MW laminate has a couple of applications which include:

1. Creating commercial avionics and communication devices
2. Aerospace/military applications
3. Satellite communication applications
4. Building networks that feature microwave feeds
5. Creating electronic structures that are phase sensitive
6. Generating passive components (baluns, filters, and couplers)

Properties that make up the Rogers CLTE-MW laminate

The Rogers CLTE-MW laminate has some unique properties that make it stand out. These properties include:

Electrical properties

When it comes to PCB laminates, electrical properties are a great factor to consider. These properties bring out a component’s ability to conduct electricity.

Rogers CLTE-MW laminates bear the following electrical properties:

Dielectric constant

When you place the Rogers CLTE-MW laminate under a temperature of 23⁰C, a bandwidth of 10GHz, and an RH of 50%, the dielectric constant hits:

• 2.94 to 3.02 (plus or minus 0.04)

If you switch up the test conditions and replace the 10 GHz bandwidth with a bandwidth within 8 – 40 GHz. And then switch the temperature and RH test conditions with the C-24/23/50 test conditions, you get the following dielectric constant:

• It lies in between the range of 3.03 to 3.10

Dissipation factor

When you place the Rogers CLTE-MW laminate under a temperature of 23⁰C, a bandwidth of 10GHz, and an RH of 50%, you get the following dissipation factor:

• 0.0015

Thermal coefficient of dielectric constant

The thermal coefficient of dielectric constant of the Rogers CLTE-MW laminate is:

• – 35 ppm/⁰C

In this test, utilize a temperature range of 0 – 100 ⁰C and bandwidth of 10GHz.

Volume resistivity

The volume resistivity of the Rogers CLTE-MW laminate under the C-96/35/90 test conditions is:

• 1.3 x 10⁷ Mohm-cm

Surface resistivity

The Rogers CLTE-MW laminate bears the following volume resistivity when you place it under the C-96/35/90 test conditions:

• 2.5 x 10⁴ Mohm

Electrical strength

The Rogers CLTE-MW laminate has the following electrical strength under normal conditions:

• 6.30 V/mil

Dielectric breakdown

The dielectric breakdown of the Rogers CLTE-MW laminate under the D-48/50 test conditions is:

• 44 kV

Comparative tracking index

Rogers CLTE-MW laminate has the following comparative tracking index under c-40/23/50 test conditions:

• 600V/ PLC o class/volts

Thermal properties of the Rogers CLTE-MW laminate

Thermal properties are also pretty crucial to consider when choosing a laminate for your PCB. You do not want a laminate that melts off quickly when you expose it to heat.

The Rogers CLTE-MW laminate has the following thermal properties:

Decomposition temperature

The decomposition temperature of the Rogers CLTE-MW laminate is as follows:

• When you place the laminate under a temperature of 105⁰C for 2 hours at a weight loss of 5%, the decomposition temperature hits 500⁰C.

Coefficient of thermal expansion

The (X/Y) coefficient of thermal expansion of the Rogers CLTE-MW laminate is:

• 8 ppm/⁰C when you place it under a temperature range of -55 – 288⁰C

The Z coefficient of thermal expansion of the Rogers CLTE-MW laminate, on the other hand, is:

• 30 ppm/⁰C with the same test conditions in place

Delamination time

The delamination time of the Rogers CLTE-MW laminate under a temperature of 288⁰C is:

• >60

Thermal conductivity

The thermal conductivity of the Rogers CLTE-MW laminate is:

• 0.42 W/mK

Mechanical properties of the Rogers CLTE-MW laminate

PCBs are sometimes put under a lot of pressure during assembly. You hence require a laminate that is durable under the application of force. Therefore, mechanical features are also crucial properties to consider.

The Rogers CLTE-MW laminate has the following mechanical properties:

Copper peel strength

After the applications of thermal stress, the copper peel strength of the Rogers CLTE-MW laminate hits:

• 1.1 N/mm

Flexure strength

The Rogers CLTE-MW laminate has the following flexure strength:

• 113 MPa

To carry out this test, place the laminate under a temperature of 25⁰C +/- 3⁰C.

Dimensional stability

The Rogers CLTE-MW laminate has the following dimensional stability (after etching and baking)

• 0.22 mil

Physical properties

The Rogers CLTE-MW laminate has the following physical properties:

Moisture absorption

Rogers CLTE-MW laminate has a pretty low moisture absorption rate of:

• 0.03%

Specific heat capacity

The specific heat capacity of the Rogers CLTE-MW laminate under C-24/23/50 test conditions is:

• 2.1 g/cm³

Conclusion

The Rogers CLTE-MW laminate is one of a kind. It bears special features that boost its durability, stability, and performance. All this makes it one of the best laminates on the market today. If you are looking to utilize this laminate in your project, we assure you that it will not disappoint.