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This product is analogous to Panasonic’s conventional offerings. This implies that the Megtron 8 PCB laminate maintains the same processability and manufacturability as conventional materials within standard circuit board processes. Additionally, it is specifically designed for high-layer-count and high-performance circuit boards.
In this article, we’ll discuss what really characterizes the high speed MEGTRON 8 R-5795(N) laminate. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the high speed print circuit board, so please feel free to contact us.
What is the high speed MEGTRON 8 R-5795(N) laminate?
Panasonic has achieved the lowest transmission loss in the industry by leveraging its advanced resin material and design compounding technologies, which enable superior dielectric properties, an exceptionally low dielectric dissipation factor, and a low-profile copper foil.
The new materials support 800GbE used for next-generation highspeed communication technology. Comparison of MEGTRON8 R-579Y(U), R-5795(U) and MEGTRON7 R578Y(N), R-5785(N), improving transmission loss by about 30% (@28GHz) and contributing to improvement in the signal processing performance of high-speed communication networking equipment. The company’s proprietary material compounding and resin design technologies enable both a high thermal decomposition temperature and a high glass transition temperature. Moreover, the Megtron 8 PCB material exhibits superior insulation reliability and heat resistance.
All these exceptional properties ensure outstanding reliability even in high-temperature environments, including circuit boards with over 20 layers used in routers and high-end servers. These features contribute to the stable operation of the equipment. Furthermore, the Megtron 8 PCB material can be manufactured using standard multilayer circuit board fabrication processes. Unlike fluoropolymer-based circuit board materials that utilize PTFE, a resin known for its low transmission loss, the Megtron 8 PCB laminate is produced from a thermoset resin system.
Moreover, these advancements enhance the signal processing performance of high speed networking equipment used in communication systems. Utilizing circuit board materials with low transmission loss improves current transmission efficiency, thereby reducing power loss due to heat generation.
The high speed MEGTRON 8 R-5795(N) laminate data sheet
Features of the high speed MEGTRON 8 R-5795(N) laminate
High Glass Transition Temperature (Tg 220°C)
Boasting a Tg above 220 °C, MEGTRON 8 R-5795(N) maintains dimensional integrity through multiple lead free reflow cycles and harsh thermal excursions, preventing warpage and preserving layer registration in complex multilayer stacks. The material retains structural integrity at elevated temperatures, making it ideal for high-power applications and environments prone to thermal stress.
Ultra-Low Loss Dielectric Constant (Dk 3.13)
With a nominal Dk of 3.13 (measured at 14 GHz) , this laminate ensures precise impedance control—critical for maintaining signal fidelity on GHz range traces and microstrip lines. Ensures minimal signal distortion and precise impedance control across GHz frequencies, critical for high-speed digital and RF applications.
Low Dissipation Factor (Df 0.0016)
Featuring a dissipation factor 0.0016 at 14 GHz, this laminate minimizes insertion loss, which is crucial for preserving signal amplitude over long trace lengths and in passive networks. Ultra-low signal loss ensures high-speed data integrity and energy efficiency, critical for 5G, AI, and high-frequency systems.
High Decomposition Temperature
With a decomposition is 370 °C, MEGTRON 8 R-5795(N) withstands harsh thermal excursions without resin breakdown, maintaining dielectric integrity even under elevated power densities. Exceptional thermal stability prevents material degradation during high-temperature assembly processes like lead-free soldering.
High Peel Strength
Robust copper adhesion enhances reliability in multilayer PCBs, reducing delamination risks during thermal cycling or mechanical stress. Offers excellent adhesion between layers, contributing to the durability and reliability of multilayer PCBs.
Low Coefficient of Thermal Expansion
Tight CTE matching with copper minimizes warpage and via cracking, ensuring long-term reliability in multilayer designs. Minimal expansion or contraction with temperature changes reduces the risk of delamination and improves long-term reliability.
Applications of the high speed MEGTRON 8 R-5795(N) laminate
From data centers to semiconductor testing, MEGTRON 8 R-5795(N) is the backbone of cutting-edge technologies:
Routers & Switches
High speed backplanes and signal cores leverage MEGTRON 8’s low-loss characteristics to support multi GHz data rates with minimal jitter and attenuation. Enables terabit-speed data transmission with ultra-low latency, essential for cloud computing and 5G networks.
Optical Transmission Equipment
Supports high-bandwidth fiber-optic systems with minimal signal loss for long-haul communication. Transponder and transceiver modules demand tight impedance control and thermal resilience—qualities inherent to this laminate’s design.
AI Servers & Supercomputers
Facilitates high-speed interconnects and dense PCB layouts to meet the computational demands of machine learning and big data. Dense memory channels and PCIe Gen 5/6 lanes benefit from the material’s stable dielectric properties, enabling reliable high bandwidth interconnects in data center environments.
Semiconductor Test Equipment & Probe Cards
Ensures signal accuracy and durability in high-frequency testing environments. Precision signal paths in high pin count test fixtures rely on the laminate’s dimensional stability and consistent dielectric constant for accurate timing measurements.
Base Stations
RF front end and feed network substrates require low insertion loss and low PIM; MEGTRON 8’s electrical performance helps maximize link budgets for 5G and beyond. Delivers reliable millimeter-wave performance for 5G/6G networks and automotive radar systems.
Manufacturing Advantages of MEGTRON 8 R-5795(N) laminate
Beyond its technical prowess, MEGTRON 8 R-5795(N) streamlines production for cost-effective, high-yield outcomes:
High Efficiency Rates
Compatible with standard FR-4 manufacturing processes, reducing fabrication time and costs without specialized equipment. Optimized for standard PCB fab lines, MEGTRON 8 processes seamlessly through drilling, plating, and lamination steps—delivering high efficiency rates and tight process windows.
Exceptional Durability
Its resin system and reinforcement combination provide mechanical robustness, reducing board failures during handling, assembly, and field operation. Resists mechanical stress, moisture, and chemical exposure, extending the lifespan of end products in harsh environments.
Superior Electric & Thermal Conductivity
Enhanced filler chemistry ensures uniform thermal conductivity, aiding heat dissipation in power dense areas, while copper interface treatments improve electrical continuity at vias and planes. Enhances heat dissipation in high-power designs, reducing hotspots and improving component reliability.
Through-Hole Reliability
Low CTE matched and strong copper adhesion minimize via barrel cracking, boosting reliability in multilayer builds with dense via arrays. Excellent plating adhesion and dimensional stability ensure robust via connections, even in complex multilayer stack-ups.
MEGTRON 8 R-5795(N) laminates represent a leap forward in high speed PCB material technology, combining ultra-low signal loss, thermal resilience, and manufacturing efficiency. For engineers designing routers, AI servers, semiconductor test systems, or advanced communication infrastructure, this material offers the performance and reliability needed to push the boundaries of what’s possible.
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