2. Technical Specifications

Parameter	Specification
Layer Count	18 Layers
Base Material	Megtron 6 (Panasonic)
Copper Foil Type	R5775G (HVLP)
Glass Transition Temp (Tg)	185°C
Board Thickness	2.013 mm
Inner Layer Copper	35 μm (1 oz)
Outer Layer Copper	35 μm (1 oz)
Surface Finish	ENIG (Immersion Gold), 2U'' Thickness, 29% Area
Solder Mask	Matte Green, PSR-2000 CE887M (CE97)
Legend	White
Board Dimensions	240 mm × 115 mm (1 Unit per Panel)
Key Processes	Via Resin Filling (Plated Shut), Sequential Numbering, Balanced Copper Design
Electrical Tests	Impedance Control Test, Low-Resistance Test

 

 

3. Core Material: Megtron 6 High-Speed Laminate

Megtron 6 is a premier high-frequency laminate from Panasonic, designed specifically for ultra-high-speed digital and RF applications. Its properties make it an ideal choice for this multi-layer construction:

 

Ultra-Low Dielectric Loss (Df): Ensures minimal signal attenuation at high frequencies, critical for maintaining signal integrity in multi-gigabit systems.

 

Stable Dielectric Constant (Dk): Provides consistent impedance control across the board and over a range of operating temperatures.

 

High Thermal Reliability: With a Tg of 185°C, it offers excellent thermal resistance for lead-free assembly and high-power applications.

 

Superior Surface Profile: The use of HVLP (Very Low Profile) copper foil (R5775G) minimizes signal loss at high frequencies due to skin effect and provides a smooth surface for precise etching.

 

4. Understanding High-Speed PCB Technology

 

4.1 What Defines a High-Speed PCB?

A high-speed PCB is designed to reliably transmit signals with fast edge rates and high frequencies where the physical characteristics of the board significantly influence electrical performance. The primary focus shifts from simple connectivity to managing signal integrity, which involves controlling impedance, minimizing crosstalk, reducing insertion loss, and ensuring proper power delivery.

Such rigorous performance requirements are typically addressed in advanced designs like Megtron 6 16-Layer high-speed HDI PCB, where high-performance materials and sophisticated layer structures work together to optimize signal transmission quality.

 

4.2 Critical Design and Manufacturing Features

This PCB incorporates several advanced features to meet high-speed demands:

 

Impedance Control: Precise dielectric thickness and trace geometry are maintained to achieve target impedance values (e.g., 50Ω, 100Ω differential), verified through testing.

 

Via Optimization: Via resin filling (plated shut) reduces signal reflections and improves reliability by eliminating air pockets.

 

Balanced Stackup: A symmetrical copper distribution and material stackup minimizes the risk of board warpage and ensures consistent electrical properties.

 

Comprehensive Testing: Includes impedance testing to validate signal path performance and low-resistance testing to ensure power integrity and connection reliability.

 

4.3 Application Scenarios for High-Speed PCBs

The capabilities of this Megtron 6-based PCB make it suitable for forefront technologies:

 

Data Center & Network Equipment: High-speed routers, switches, server motherboards, and optical transceivers for 400G/800G Ethernet.

 

Telecommunications Infrastructure: 5G NR baseband units (BBUs), active antenna units (AAUs), and fronthaul/backhaul equipment.

 

High-Performance Computing (HPC): AI accelerator cards, GPU clusters, and supercomputing interconnect boards.

 

Advanced Test & Measurement: Equipment for semiconductor validation, high-frequency signal analysis, and radar systems.

 

5. Design and Performance Summary

Megtron6 18-layer PCB is a culmination of advanced material science and precision engineering, tailored for the challenges of high-speed digital design. From its controlled impedance and low-loss material base to its robust via-in-pad and finishing processes, every aspect is optimized for signal fidelity and manufacturing reliability. The inclusion of electrical testing guarantees performance adherence, providing designers with confidence for complex, high-bandwidth applications.

 

For system architects and engineers pushing the boundaries of data rate and processing power, this PCB offers a proven, high-performance foundation that balances speed, density, and reliability.

 

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd is an established high frequency PCB supplier and exporter in Shenzhen, China, serving customers worldwide.

 

We are devoted to delivering high-frequency PCB products and solutions of the highest quality, along with customized service. Get in touch with us to start your project !

Visit https://www.bicheng-enterprise.com to learn more.