CLTE Series High-Performance PTFE Laminates
CLTE Series laminates are premium, ceramic-filled PTFE composites designed for demanding RF, microwave, and millimeter-wave applications. Combining exceptional electrical performance, mechanical strength, and thermal stability, these laminates are ideal for advanced multilayer PCBs requiring precision, reliability, and long-term operational stability.
Key Features
Low Loss & Stable Dielectric Properties
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Consistent dielectric constant (Dk) across a wide frequency range.
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Ultra-low dissipation factor (Df) minimizing signal loss for high-frequency circuits.
Dimensional Stability
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Excellent mechanical and thermal stability ensures precision in multilayer designs.
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Reliable performance under mechanical stress and thermal cycling.
Low Coefficient of Thermal Expansion (CTE)
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Supports high-reliability designs and compatibility with various PCB materials.
Thermal Reliability
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Wide operating temperature range (-55°C to +200°C).
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Low thermal conductivity ensures stable circuit performance.
Environmental Resistance
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Minimal moisture absorption (<0.05%) and strong chemical resistance.
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Robust performance in harsh and demanding environments.
Typical Applications
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Phased array antennas
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RF/microwave power amplifiers and filters
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Millimeter-wave communication devices
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Automotive radar systems
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Aerospace and defense electronics
Technical Specifications
| Property | Value |
|---|---|
| Dielectric Constant (Dk) | 2.94 ± 0.04 (10 GHz) |
| Dissipation Factor (Df) | ≤ 0.0021 (10 GHz) |
| Thermal Conductivity | 0.5 W/m·K |
| Moisture Absorption | < 0.05% |
| CTE (X-Y) | ~13 ppm/°C |
| CTE (Z) | ~30 ppm/°C |
| Flammability Rating | UL 94 V-0 |
| Operating Temperature Range | -55°C to +200°C |
| Peel Strength (1 oz Copper) | ≥ 8 lbs/in |
Processing Guidelines
Storage
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Keep in a clean, dry, temperature-controlled environment.
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Avoid direct sunlight and high humidity exposure.
Fabrication
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Drilling: Use carbide or diamond-coated tools with appropriate entry/backer materials.
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Etching: Compatible with standard copper etching processes.
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Lamination: Follow recommended pressure, temperature, and cooling cycles.
Surface Preparation
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Ensure surfaces are clean for optimal adhesion and plating quality.
Routing & Cutting
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CNC routing or laser cutting recommended for precise, clean edges.
Compliance & Certification
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RoHS and REACH compliant
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UL 94 V-0 flammability rating
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Meets IPC-4103 specifications
CLTE Series laminates deliver unparalleled electrical performance and mechanical reliability for high-frequency PCB, precision PCB designs. For detailed technical guidance, please contact the manufacturer or your local distributor.
