TLY-5 125mil laminates are manufactured with woven fiberglass and Immersion Gold Finish for high frequency double sided PCB
Double-Sided PCB with TLY-5, 3.2mm Thickness, and Immersion Gold Finish
(All PCBs are custom-manufactured. Reference images and parameters may vary based on your design requirements.)
1. Overview of the Double-Sided PCB
This double-sided PCB is built with TLY-5, a high-frequency laminate manufactured with lightweight woven fiberglass, offering exceptional mechanical stability and low dissipation factor. The ENIG surface finish ensures excellent solderability and corrosion resistance, making it a reliable choice for millimeter-wave applications at frequencies up to 77 GHz.
With 1oz copper layers, precise 7/7 mil trace and space tolerances, and a 3.2mm board thickness, this PCB is optimized for high-frequency signal integrity. Every unit undergoes 100% electrical testing to meet IPC-Class-2 quality standards.
2. PCB Construction Details
| Parameter | Specification |
| Base Material | TLY-5 |
| Layer Count | 2 layers |
| Board Dimensions | 106mm x 48.5mm ± 0.15mm |
| Minimum Trace/Space | 7/7 mils |
| Minimum Hole Size | 0.4mm |
| Via Type | No Blind Vias |
| Finished Board Thickness | 3.2mm |
| Finished Copper Weight | 1oz (1.4 mils) outer layers |
| Via Plating Thickness | 20 μm |
| Surface Finish | Immersion Gold |
| Top Solder Mask | None |
| Bottom Solder Mask | None |
| Top Silkscreen | None |
| Bottom Silkscreen | None |
| Electrical Testing | 100% tested to IPC-Class-2 standards |
3. PCB Stackup
The 2-layer rigid PCB stackup is optimized for high-frequency RF applications. Here’s the stackup structure:
| Layer | Material | Thickness |
| Copper Layer 1 | Copper (1oz) | 35 μm |
| Core Material | TLY-5 | 3.175mm (125mil) |
| Copper Layer 2 | Copper (1oz) | 35 μm |
4. Features of TLY-5
- Dielectric Constant (Dk): 2.2 ± 0.02 at 10 GHz/23°C, ensuring stable signal propagation.
- Dissipation Factor (Df): 0.0009 at 10 GHz, minimizing signal loss.
- Moisture Absorption: 0.02%, ensuring consistent performance in humid environments.
- CTE (Coefficient of Thermal Expansion): X-axis: 26 ppm/°C. Y-axis: 15 ppm/°C. Z-axis: 217 ppm/°C.
- Enables dimensional stability and reliable plated-through hole performance.
- Density (Specific Gravity): 2.19 g/cm³, offering lightweight but durable performance.
- Flammability Rating: UL 94 V-0 for enhanced safety.
5. Benefits of TLY-5 Material
- Low Dielectric Loss: Ensures high signal integrity for millimeter-wave and RF applications.
- Stable Dielectric Constant: Consistent Dk ensures reliable performance across temperature and frequency ranges.
- Dimensional Stability: The woven fiberglass reinforcement improves handling and reduces warping during assembly.
- Low Moisture Absorption: Maintains performance in humid or marine environments.
- High Copper Peel Strength: Ensures robust interconnects, even under challenging conditions.
6. Applications of the Double-Sided PCB
Automotive Radar: Enables reliable 77 GHz radar systems for collision avoidance and autonomous driving.
Satellite/Cellular Communications: Provides high signal integrity for satellite and cellular infrastructure.
Power Amplifiers: Ensures efficient and reliable power transmission at high frequencies.
Low Noise Blocks (LNBs), LNAs, and LNCs: Suitable for high-performance RF front-end designs.
Ka, E, and W Band Applications: Ideal for applications in millimeter-wave frequency bands.
Aerospace Systems: Withstands extreme environments, making it suitable for critical aerospace applications.
With its TLY-5 material, this PCB offers exceptional performance and reliability for cutting-edge RF and millimeter-wave designs.
Why Choose Bicheng Technologies?
At Bicheng Technologies Limited, we specialize in manufacturing high-quality PCBs for RF and millimeter-wave applications. Our double-sided PCB with TLY-5 material combines advanced materials with precise manufacturing processes to deliver reliable performance for your projects.
Why Work With Us?
- Global Reach: We deliver worldwide and provide excellent customer support.
- High Standards: All PCBs are tested to IPC-Class-2 standards, ensuring quality and reliability.
- Customized Solutions: We work closely with you to meet your specific requirements.
If you’re looking for a trusted partner for your next high-frequency project, feel free to contact me at sales30@bichengpcb.com. Let’s collaborate to bring your innovative designs to life.
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