14-Layer Panasonic M6 R-5775(N) Laminate High Speed PCB ENEPIG Green Solder Mask

14-Layer Panasonic M6 R-5775(N) LaminateHigh Speed PCB ENEPIG Green Solder Mask

Product Introduction

In the era of 5G communication, high-performance computing (HPC), artificial intelligence, and advanced networking equipment, the demand for ultra-stable, low-loss, high-frequency capable printed circuit boards (PCBs) has reached unprecedented levels. This 14-layer high-speed board is engineered around Panasonic MEGTRON6 series high-speed low-loss dielectric materials, specifically the R-5775(N) laminate and R-5670(N) prepreg, to deliver exceptional electrical performance, mechanical reliability, and thermal stability for mission-critical applications.

Designed with a compact form factor of 106mmx102mm, this multilayer High Speed PCB integrates precision microvia technology, strict impedance control, and industry-leading ENEPIG surface finishing to satisfy the rigorous requirements of high-speed signal transmission, miniaturized assembly, and long-term operational durability. Compliant with IPC-3 Class 3 performance standards, the board undergoes 100% electrical testing before shipment, ensuring zero electrical defects and consistent quality across every unit.

This article provides an in-depth overview of the PCB’s construction, stack-up design, manufacturing features, performance characteristics, and the fundamental material science of the MEGTRON6 R-5775(N) dielectric system.

PCB Construction Details

The following table consolidates all critical structural and finishing specifications of the 14-layer high-speed PCB, validated against IPC-3 Class 3 standards.

14-layer PCB Stack-up Design

This table presents the layer sequence, function, dielectric material, thickness, and copper weight for each layer.

Key PCB Performance Features

1)High-Speed Material Foundation

The board is built on Panasonic MEGTRON6, a second-generation low-Dk, low-Df hydrocarbon-ceramic laminate system designed for multi-gigabit-per-second data rates. The material’s stable electrical properties across wide frequency bands preserve signal integrity, reduce insertion loss, and minimize jitter in high-speed serial links.

2)Precision Microvia and Plating Technology

The minimum finished hole size is 0.2 mm, fully filled with resin and electroplated to ensure structural integrity, excellent thermal conduction, and reliable electrical connection. All via plating meets IPC-3 Class 3 requirements, ensuring uniform coverage and high reliability under thermal cycling.

3)Impedance Control

Five critical locations are precisely controlled for impedance, supporting standard high-speed transmission line types:

4)Surface Finish: ENEPIG

ENEPIG (Electroless Nickel / Electroless Palladium / Immersion Gold) provides outstanding wire bondability, solderability, and corrosion resistance. The palladium layer prevents nickel corrosion and gold-diffusion-related embrittlement, making the finish ideal for fine-pitch components, high-reliability assembly, and long-term field use.

MEGTRON6 R-5775(N) & R-5670(N) CCL Technical Knowledge

Overview of MEGTRON6 Series

Panasonic M6 is a high-performance, low-loss multi-layer dielectric material system designed for high-speed, high-frequency printed circuit boards. It consists of R-5775(N) laminate (core material) and R-5670(N) prepreg (bonding sheet), both featuring low dielectric constant (Dk) and extremely low dissipation factor (Df) for minimal signal attenuation at GHz frequencies. The material delivers excellent thermal stability, low coefficient of thermal expansion (CTE), and high glass transition temperature (Tg), making it ideal for14-layer+ high-layer-count PCBs.

Core Material: R-5775(N) Laminate–Full Specifications

The following table lists the key thermal, electrical, and physical properties of R-5775(N) laminate based on official datasheet values.

Electrical Performance Across Frequencies

R-5775(N) laminate maintains stable Dk/Df across 1–58 GHz, supporting 5G, 6G, and high-speed computing protocols.

Prepreg: R-5670(N) Bonding Sheet

R-5670(N) prepreg matches the electrical performance of R-5775(N) laminate and supports reliable multilayer lamination.

• Low Dk: 3.13–3.40 (1GHz)
• Low Df: 0.002 (1GHz), 0.0037 (13GHz)
• Compatible with standard PCB lamination profiles (185°C, 75 minutes)
• Low moisture absorption and excellent flow characteristics

Processing Guidelines for MEGTRON6

1. Storage: Prepreg≤23°C,≤50%RH; open bag≤8 hours.
2. Lamination: Ramp 2–4°C/min; pressure 3.0–4.0 MPa; temp >185°C for 75 min.
3. Desmear: Permanganate process at twice standard FR-4 conditions; plasma at half time.
4. Surface finish: ENEPIG compatible; pre-bake recommended before plating.

Material Image Description

MEGTRON6 R-5775(N) laminate appears as a smooth, matte-finish core sheet with uniform copper cladding. The dielectric layer is light tan in color, with consistent resin distribution and glass-cloth reinforcement. R-5670(N) prepreg is a semi-cured B-stage sheet with uniform resin coating on glass cloth, designed for lamination flow and bonding. Both materials exhibit excellent mechanical rigidity, low warpage, and high copper peel strength after lamination.

Conclusion

This 14-layer MEGTRON6 high-speed PCB with ENEPIG finish combines advanced material science, precision stack-up design, and Class 3 manufacturing quality to deliver industry-leading signal integrity, thermal reliability, and assembly performance. Backed by Panasonic’s R-5775(N)/R-5670(N) low-loss dielectric system, the board is fully capable of supporting next-generation high-speed electronic systems while maintaining long-term durability in demanding operating environments.