Teflon High Frequency PCB
Teflon High Frequency PCB
Product Name: | Teflon PCB |
Layers: | up to 34 layers |
Material: | Teflon laminate (polytetrafluoroethylene, PTFE) |
Quality Standards: | IPC6012 Class II or III |
Dielectric Constant: | 2.0 - 3.5 |
Copper Thickness: | Base copper 0.5 oz, finished copper 1 oz |
Thickness: | 0.1 mm to 12 mm |
Surface Technology: | Immersion Gold, ISIG |
Special Requirements: | High-precision RF lines, specific DK and DF values for materials |
Applications: | High-frequency PCB, microwave applications |
Material Characteristics: Teflon, scientifically known as PTFE, offers unique qualities, making it ideal for high-frequency PCBs. Teflon is highly resistant to acids, alkalis, and organic solvents and is nearly insoluble in most substances. Key characteristics include:
--- High-Temperature Resistance: Operating temperature range of 200-260°C
--- Low-Temperature Tolerance: Flexible at temperatures as low as -100°C
--- Corrosion Resistance: Withstands aqua regia and all organic solvents
--- Weather Resistance: Superior aging life among plastics
--- High Lubrication: Lowest coefficient of friction among plastics (0.04)
--- Non-Stick Properties: Minimal surface tension prevents adhesion to other materials
--- Physiological Inertness: Safe for various applications
--- Electrical Insulation: Excellent electrical properties with high voltage resistance
Performance Characteristics of Teflon PCBs:
1. Income (Voltage Gain): Enhances output power, particularly in resonant differential amplifier circuits.
2. Passband: Critical for maintaining signal integrity within frequency limits.
3. Selectivity: Effective in suppressing unwanted signals, with high signal selectivity measured by the suppression ratio.
4. Noise Figure: Teflon’s low-noise properties ensure clear signal transmission.
5. Stability: Consistent performance across varying conditions, including temperature fluctuations and power supply changes.
Applications of High-Frequency Teflon PCB: Teflon PCBs are vital in high-frequency (≥300MHz) and microwave (≥3GHz) applications, including radar, communications equipment, and advanced radio systems. Specific applications include:
--- Lighting and Communication Systems
--- Power Amplifiers and Low Noise Amplifiers
--- Passive Components: Power splitters, couplers, duplexers, and filters
--- Automotive and Satellite Systems: Key for high-frequency electronic equipment in anti-collision and satellite technologies