2-Layer PCB with TLX-8, 0.3mm Thickness, and ENIG Finish for Microwave Applications
(All PCBs are custom-manufactured. Reference images and parameters may vary based on your design requirements.)


1. Overview of the 2-Layer PCB
This 2-layer PCB uses Taconic TLX-8 laminates, a PTFE fiberglass material renowned for its outstanding thermal resistance, low dissipation factor, and stable dielectric constant. With a 10mil TLX-8 core, surrounded by 1oz copper layers on both sides, this PCB ensures signal integrity, durability, and reliability in extreme environments.
The ENIG surface finish provides excellent solderability and long-term corrosion resistance. While this PCB does not include solder masks or silkscreens, its compact size (20mm x 21.35mm) and precise manufacturing make it a top choice for high-performance microwave applications.




2. PCB Construction Details

3. PCB Stackup
The two-layer stackup of this PCB is simple yet optimized for high-frequency RF applications. Its structure is as follows:

4. Features of Taconic TLX-8
The TLX-8 laminates are designed for microwave applications requiring low loss and high reliability. Below are its standout features:

• Dielectric Constant (Dk): 2.55 ± 0.04 at 10 GHz, ensuring stable signal propagation.
• Dissipation Factor (Df): 0.0018 at 10 GHz, minimizing signal loss.
• Tg: >535°C (2% weight loss) and >553°C (5% weight loss), ensuring reliable performance in high-heat environments.
• X-axis: 21 ppm/°C.
• Y-axis: 23 ppm/°C.
• Z-axis: 215 ppm/°C, ensuring dimensionally stable plated-through holes.
• Moisture Absorption: 0.02%, ensuring reliability in humid environments.
• Flammability Rating: UL 94 V-0, meeting stringent safety standards.

5. Benefits of TLX-8

Low Signal Loss: Its low dissipation factor ensures high-frequency signal integrity.

Thermal and Mechanical Reliability: With excellent thermal properties and dimensional stability, it performs well in extreme environments like space launches, engine modules, and high-vibration conditions.

Low Moisture Absorption: Ensures consistent performance even in humid or marine environments.

High PIM Performance: Superior passive intermodulation (PIM) values measured at lower than -160 dBc make it ideal for microwave and RF applications.

Cost-Effective Manufacturing: Compatible with standard PCB processing methods, reducing fabrication costs.



6. Applications of the 2-Layer PCB
This PCB is specifically designed for microwave and RF applications requiring high reliability and low loss. Typical applications include:

Radar Systems
Mobile Communications
Microwave Test Equipment
Microwave Transmission Devices
Couplers, Splitters, and Combiners
Antennas



Why Choose Bicheng Technologies?
At Bicheng Technologies Limited, we prioritize delivering high-quality PCBs tailored for RF and microwave applications. Our 2-layer PCB with Taconic TLX-8 material is manufactured with precision and care to ensure reliable performance and durability in even the most demanding environments.


Why Work With Us?
Global Reach: We ship worldwide and provide timely support.
High Standards: All PCBs are tested to IPC-Class-2 standards to ensure quality.
Customer Support: We work closely with clients to meet their unique requirements.

If you’re looking for a reliable partner for your next high-frequency project, feel free to contact me at sales30@bichengpcb.com. Let’s turn your innovative ideas into reality with our expertise in advanced PCB manufacturing.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. The circuit board ranges from conventional FR-4 to PTFE, metal core to flexible circuits which are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

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