Double-Sided PCB with TP980, 4.1mm Thickness, and ENIG 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 constructed using TP980, a high-frequency
thermoplastic laminate with ceramic and PPO resin composition. The
absence of fiberglass reinforcement ensures smooth surfaces and
precise dielectric properties, making it ideal for microwave and RF
designs. With a 9.8 dielectric constant (Dk) and low dissipation
factor (Df) of 0.0012 at 10 GHz, the TP980 core enables stable
performance even in demanding conditions.
The ENIG surface finish enhances solderability and provides
long-lasting corrosion resistance. Designed with 100% electrical
testing to meet IPC-Class-2 quality standards, this PCB ensures
reliability and consistency for critical applications.
2. PCB Construction Details
| Parameter | Specification |
| Base Material | TP980 |
| Layer Count | Double-sided |
| Board Dimensions | 68mm x 68mm ± 0.15mm |
| Minimum Trace/Space | 7/5 mils |
| Minimum Hole Size | 0.7mm |
| Via Type | No Blind Vias |
| Finished Board Thickness | 4.1mm |
| Finished Copper Weight | 1oz (1.4 mils) outer layers |
| Via Plating Thickness | 20 μm |
| Surface Finish | Electroless Nickel Immersion Gold (ENIG) |
| 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
This 2-layer rigid PCB stackup is optimized for high-frequency RF
and microwave applications. Here’s the stackup structure:
| Layer | Material | Thickness |
| Copper Layer 1 | Copper (1oz) | 35 μm |
| Core Material | TP980 | 4.0mm (157.5mil) |
| Copper Layer 2 | Copper (1oz) | 35 μm |
4. Features of TP980
- Dielectric Constant (Dk): 9.8 ± 0.2 at 10 GHz, ensuring stable signal propagation.
- Dissipation Factor (Df): 0.0012 at 10 GHz, minimizing signal loss.
- Low TCDk: -40 ppm/°C (-55°C to 150°C), ensuring consistent dielectric
performance over temperature changes.
- CTE (Coefficient of Thermal Expansion): X-axis: 40 ppm/°C. Y-axis: 40 ppm/°C. Z-axis: 55 ppm/°C. Suitable
for high-reliability plated-through-hole applications.
- Thermal Conductivity: 0.65 W/mK, enabling effective heat dissipation.
- Moisture Absorption: 0.01%, ensuring consistent performance in humid environments.
- Flammability Rating: UL 94 V-0 for enhanced safety.
5. Benefits of TP980 Material
Low Dielectric Loss: Ensures high-frequency signal integrity with minimal loss.
Thermally Stable Dielectric Properties: Consistent Dk and Df across a wide temperature range ensure
reliability in extreme conditions.
Dimensional Stability: The absence of fiberglass reinforcement provides a smooth surface
and enhances precision in high-frequency designs.
Moisture Resistance: Low moisture absorption ensures consistent performance in marine or
humid environments.
High Thermal Conductivity: Enables effective heat dissipation in high-power applications.
6. Applications of the Double-Sided PCB
Global Satellite Navigation Systems: Provides reliable signal transmission for high-accuracy navigation
devices.
Missile-Borne Systems: Ensures reliable performance under extreme vibration and thermal
conditions.
Fuze Technology: Suitable for precision-guided systems requiring high-frequency
consistency.
Miniaturized Antennas: Ideal for compact, high-performance RF antenna designs.
With its TP980 material, this PCB offers outstanding reliability
and performance for critical high-frequency applications.
Why Choose Bicheng Technologies?
At Bicheng Technologies Limited, we specialize in manufacturing
high-quality PCBs for RF and microwave applications. Our
double-sided PCB with TP980 material combines advanced materials
with precise manufacturing techniques to deliver reliable and
high-performance solutions 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 project 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.
