RF-60A Low Moisture Absorption Material
RF-60A is a high-performance, low-moisture-absorption material designed for RF and microwave applications where environmental stability is critical. The substrate features a ceramic-filled PTFE composite that offers excellent electrical properties, high thermal reliability, and mechanical stability, making it ideal for use in humid environments or applications exposed to fluctuating conditions.
Typical applications include antennas, radomes, satellite communications, and RF transmission systems.
Key Features and Benefits
- Superior Electrical Performance:
- Stable dielectric constant (Dk) ensures predictable performance across a wide frequency range.
- Low dissipation factor (Df) for efficient signal transmission with minimal loss.
- Exceptional Moisture Resistance:
- Extremely low moisture absorption maintains stable electrical properties even in high-humidity environments.
- High Thermal Stability:
- Wide operating temperature range supports high-reliability designs.
- Low Coefficient of Thermal Expansion (CTE) ensures dimensional stability in multilayer and hybrid circuits.
- Mechanical Durability:
- High mechanical strength and robust adhesion to copper foil.
- Ease of Fabrication:
- Compatible with standard PCB manufacturing processes, including drilling, plating, and routing.
Material Properties
| Property | Typical Value |
|---|---|
| Dielectric Constant (Dk) | 6.15 ± 0.15 (10 GHz) |
| Dissipation Factor (Df) | ≤ 0.0020 (10 GHz) |
| Moisture Absorption | < 0.01% |
| Thermal Conductivity | 0.50 W/m·K |
| CTE (Z-Axis) | ~25 ppm/°C |
| Peel Strength | ≥9 lbs/in (1 oz copper) |
| Flammability Rating | UL 94 V-0 |
Applications
- Telecommunications:
- RF and microwave antennas.
- 5G and millimeter-wave systems.
- Aerospace and Defense:
- Radomes and phased-array antennas.
- High-frequency communication devices.
- Industrial and Automotive:
- RF sensors and control systems.
Fabrication Guidelines
- Drilling:
- Use carbide or diamond-coated tools to prevent delamination.
- Optimize feed rates and spindle speeds for precise hole quality.
- Lamination:
- Uniform heat and pressure application ensures consistent bonding with other layers.
- Copper Plating:
- Compatible with standard electroless and electrolytic copper plating.
- Storage Recommendations:
- Store in a controlled environment with temperature between 20-25°C and 40-60% relative humidity.
Compliance and Certifications
- RoHS Compliant
- REACH Compliant
- UL 94 V-0 Flammability Certification
- Low Outgassing Properties (ideal for space applications)
