What circuit boards do we do? (28) TLX-9 High Frequency PCB

Introduction

Taconic’s TLX-9 high-frequency material is a composite of PTFE fiberglass laminates, representing the pinnacle of innovation in copper-clad PTFE/woven glass technology.

It features excellent mechanical and thermal properties, a low dissipation factor, and a low and stable dielectric constant with tight control, while also meeting the UL 94 V-0 flammability rating. Additionally, TLX-9 laminates can be sheared, drilled, milled, and plated using standard methods applicable to PTFE/woven fiberglass materials.

Features

Now, let's explore the key features and typical values of TLX-9 that highlight its impressive capabilities.

First, the Dielectric Constant at 10 GHz is 2.50. This means TLX-9 performs well in high-frequency applications, helping to keep signals stable and reducing distortion.

Next is the Dissipation Factor, also at 10 GHz, which is just 0.0019. This low value indicates that there is minimal signal loss, ensuring efficient transmission of high-frequency signals.

Regarding Moisture Absorption, TLX-9 absorbs less than 0.02% moisture. This low rate enhances reliability, especially in humid environments.

The Dielectric Breakdown strength exceeds 60 kV, making TLX-9 suitable for high-voltage applications like radar and microwave devices.

For Resistivity, TLX-9 has a Volume Resistivity of 10^7 Mohm/cm and a Surface Resistivity of 10^7 Mohm. These high values demonstrate its effectiveness as an insulator, preventing electrical leakage.

The Peel Strength for 1 oz copper is 12.0 lbs per linear inch, indicating strong adhesion that keeps the copper cladding secure during use.

In terms of Thermal Expansion, the X-Y Coefficient of Thermal Expansion (CTE) is 9 and 12 ppm/°C, while the Z CTE ranges from 130 to 145 ppm/°C. These low values help TLX-9 maintain its size and shape despite temperature changes, which is crucial for precision in electronics.

Finally, TLX-9 meets the UL-94 V-0 flammability rating making it a safe choice for critical applications in aerospace and military sectors.

PCB Capability

For PCB capability on TLX-9, you can choose from a variety options including single-sided, double-sided, multilayer, and hybrid designs.

The material is available in thicknesses of 5, 10, 20, and 30 mils.

Finished copper for track lines can be specified as either 1 oz. or 2 oz.

The maximum PCB size is 400 mm by 500 mm, suitable for single boards or multiple designs on a panel.

You can choose from solder mask colors of green, black, blue, red, and yellow, among others.

For surface finishes, immersion gold, HASL, immersion silver, immersion tin, bare copper, OSP, pure gold, and ENEPIG are available.

Applications

The TLX-9 PCB is employed in a range of advanced applications, such as Low Noise Amplifiers (LNAs), Low Noise Block Converters (LNBs), Low Noise Converters (LNCs), large format antennas for Personal Communications Service (PCS) and Personal Communications Network (PCN), as well as High Power Amplifiers.