Introduction
MEGTRON 6 is the original PCB industry standard for high-speed, ultra-low loss circuit materials. The family includes MEGTRON 6(G), MEGTRON 6(K), and MEGTRON 6(N), offering a range of laminates and prepregs tailored to various applications. MEGTRON 6 materials are ideal for mobile devices, networking, and wireless applications, especially where high-speed signal transmission, low dielectric loss, and thermal reliability are critical.
The material supports high-density interconnect (HDI) designs and provides excellent thermal performance, making it suitable for complex multi-layer PCB structures.
Material Overview
| Material | Type | Typical Use |
|---|---|---|
| MEGTRON 6(N) | Low Dielectric Constant (Dk) Glass Cloth | Ultra-low loss applications requiring minimal signal attenuation |
| MEGTRON 6 | Standard E Glass Cloth | General high-performance PCB applications |
| MEGTRON 6(G/K) | Variants with optimized resin content and thickness | HDI and thermal-critical applications |
Thermal Properties
MEGTRON 6 exhibits exceptional thermal stability for high-frequency, high-density circuits:
| Property | Units | Test Method | Typical Value |
|---|---|---|---|
| Glass Transition Temperature (Tg) | °C | DSC / DMA | 185 / 210 |
| Thermal Decomposition Temperature (Td) | °C | TGA | 410 |
| Time to Delamination (T288) | min | IPC TM-650 | >120 (with or without Cu) |
| Coefficient of Thermal Expansion (CTE) X/Y < Tg | ppm/°C | IPC TM-650 | 14–16 |
| Coefficient of Thermal Expansion (CTE) Z < Tg | ppm/°C | IPC TM-650 | 45 |
| Coefficient of Thermal Expansion (CTE) Z > Tg | ppm/°C | IPC TM-650 | 260 |
These properties ensure dimensional stability and minimal risk of delamination during thermal cycling or high-temperature soldering processes.
Electrical Properties
MEGTRON 6 materials provide ultra-low transmission loss and stable dielectric properties across a wide frequency range:
| Property | Units | 1GHz | 10GHz |
|---|---|---|---|
| Dielectric Constant (Dk) | – | 3.71 | 3.61 |
| Dissipation Factor (Df) | – | 0.002 | 0.004 |
| Volume Resistivity | MΩ·cm | 1 × 10⁹ | – |
| Surface Resistivity | MΩ | 1 × 10⁸ | – |
Low Dk and low Df ensure excellent signal integrity for RF, microwave, and high-speed digital circuits.
Mechanical and Physical Properties
| Property | Units | Typical Value |
|---|---|---|
| Water Absorption | % | 0.14 |
| Peel Strength 1oz (H-VLP) | kN/m | 0.8 |
| Flammability | – | UL 94V-0 |
These characteristics provide high reliability in harsh environments, including high humidity, elevated temperatures, and mechanically demanding applications.
Thickness and High-Frequency Performance
MEGTRON 6 is available in a range of core and prepreg thicknesses, supporting multi-layer PCB designs:
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Dielectric constant (Dk) range: 3.19–4.07
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Dissipation factor (Df) range: 0.002–0.004
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Frequency range: 1 GHz – 10 GHz
The material maintains consistent electrical performance across different thicknesses and layer counts, enabling high-speed signal routing with minimal loss in RF/microwave circuits.
Applications
MEGTRON 6 is widely used in:
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Mobile and wireless communication devices: 5G, Wi-Fi, and millimeter-wave applications
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Networking equipment: Routers, switches, and high-speed data transfer systems
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Automotive electronics: Advanced driver-assistance systems (ADAS) and in-vehicle networking
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Aerospace and defense: RF/microwave and high-reliability electronics
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Industrial control systems: High-speed digital and power electronics
Its combination of ultra-low loss, thermal stability, and high-density interconnect support makes it ideal for demanding high-speed PCB applications.
Conclusion
The MEGTRON 6 family represents the benchmark for ultra-low loss, high-performance PCB materials. With variants optimized for low Dk, HDI, and thermal reliability, MEGTRON 6 ensures superior signal integrity, mechanical strength, and thermal stability.
Before adoption, it is recommended to evaluate the material for specific application requirements and confirm delivery specifications with your supplier to ensure consistent performance.
IPC-4101E Specification Sheet 251592_fileversion
Panasonic R-5775(N)/R-5670(N) Datasheet
