Shengyi Synamic8G Halogen-free Ultra-low Loss Laminate That Is A Premier Choice For Heat Resistance Multilayer PCB Application

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Shengyi Synamic8G laminates are a next-generation halogen-free solution designed to deliver superior signal integrity, thermal reliability, and manufacturability across a range of high-speed applications.

In this article, we’ll discuss what really characterizes the Shengyi Synamic8G 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 heat resistance Multilayer PCB board, so please feel free to contact us.

Synamic8G pcb
8 layer Synamic8G pcb

What is the Synamic8G pcb material?

Shengyi Synamic8G laminate have a glass transition temperature of 200 degrees Celsius, it is a high Tg value, which significantly influences its thermal performance. Generally speaking, Tg serves as a measure of how a material softens when exposed to temperatures exceeding its threshold. The dielectric constant (DK) of Synamic8G is 3.66, which is quite low. Thus, Synamic8G exhibits a low dielectric constant. This electrical property plays a crucial role in ensuring signal integrity and impedance. It should be noted that the dielectric constant of a material is frequency dependent. A material with a low and stable dielectric constant is highly suitable for high frequency applications.

The laminate has an excellent anti- Conductive Anodic Filament performance. enhancing long-term reliability in densely routed boards exposed to moisture or voltage gradients. The Td value of the Synamic8G laminate is 430 degrees Celsius. The decomposition temperature indicates the temperature at which Synamic8G undergoes chemical decomposition. Therefore, It will decompose chemically at 430 degrees Celsius. Notably, this value is relatively high. Materials with a high Tg are capable of withstanding thermal stress without breaking.

Moreover, it is a halogen-free material, meaning it contains no halogen constituents. This makes it extremely safe for PCB fabrication, as it is free from toxic substances. Halogen is a harmful substance that can have detrimental effects on human health and the environment. Consequently, PCB manufacturers tend to prefer using halogen-free materials for their PCB fabrication processes. Shengyi Synamic8G laminates are engineered to meet these exacting requirements. Designed for next-generation applications in data centers, 5G infrastructure, and high performance computing (HPC), Synamic8G offers a unique combination of low dielectric loss, high thermal reliability, and environmental safety, making it an ideal choice for ultra high speed and high frequency designs.

The Synamic8G PCB material data sheet

Synamic8G datasheet
Synamic8G datasheet

The features of the Synamic8G PCB material

Glass Transition Temperature (Tg)

The laminate features a high Glass Transition Temperature (Tg) of 200°C, ensuring dimensional stability and consistent electrical performance under the thermal stresses of dense, power-hungry assemblies and multiple reflow cycles.

High Decomposition Temperature (Td)

This laminate has a decomposition temperature of 430 degrees Celsius. Offers a high decomposition temperature, allowing it to withstand multiple reflow cycles and extended operation under high thermal stress without degradation. Supports long-term thermal stability and resistance to degradation at high temperatures.

Low Dielectric Constant (Dk)

With a dielectric constant (3.66 @10GHz), Synamic8G maintains excellent dielectric stability across frequency and temperature ranges, which is essential for maintaining impedance control and minimizing signal distortion in high speed circuits.

Ultra-Low Dissipation Factor (Df)

With a dissipation factor (0.0032 @10GHz), the material exhibits a Ultra-low Df value, reduces transmission losses, enabling reliable performance at high data rates. minimizing signal loss (insertion loss) and distortion critical for multi-gigabit applications.

Halogen Free Material

It is fully halogen-free, meeting global environmental regulations such as IEC 61249-2-21 and supporting sustainable design practices. It is formulated without bromine or chlorine, reducing environmental impact and safety concerns during manufacturing and end-of-life disposal.

Excellent Thermal Reliability

Engineered for demanding environments, Synamic8G delivers superior thermal endurance, ensuring long-term performance and reliability even under continuous thermal stress. Designed to endure harsh thermal cycles and high operational temperatures without degradation.

Excellent Anti-CAF Performance

The laminate’s advanced resin system provides strong resistance to Conductive Anodic Filament (CAF) formation, enhancing long-term reliability in densely routed boards exposed to moisture or voltage gradients. Enhances long-term electrical reliability, especially in high humidity and high voltage conditions.

Lower Z-axis CTE, offering superior PTH reliability

This critical property helps reduce stress on plated through holes (PTHs) during thermal cycling. The lower Z-axis CTE contributes significantly to superior PTH reliability, preventing barrel cracks and ensuring stable electrical connections over the product lifetime.

What are the applications of the Synamic8G PCB material?

Shengyi Synamic8G laminates are engineered for performance driven environments where high speed data, minimal signal loss, and structural reliability are critical. Typical application areas include:

Ultra-High Speed Network Equipment

The PCB material is of vital significance in high speed networking. Moreover, this material provides excellent signal integrity, which is essential for ultra-high speed networking. High speed network equipment is responsible for combining or splitting information within a telecommunications network. It encompasses Server, Switch, Storage and Routers. This equipment highly depends on the Synamic8G PCB material.

High Performance Computing

The Shengyi laminate is frequently utilized in high-performance computing. This application enables engineers and researchers to solve complex problems in a shorter period. The Synamic8G possesses properties that make it an ideal choice for this application. The material is ideal for GPU modules, backplanes, and high density interconnects, where consistent signal propagation and thermal resilience are key to system performance.

High-Frequency Measuring Instruments

Synamic8G supports the design of precision test equipment, including oscilloscopes, signal analyzers, and network analyzers, where measurement accuracy depends on stable dielectric properties.

Optical Communication Products

Minimizes signal distortion in transceivers, optical modules, and fiber-optic systems. Used in optical modules and transceivers, Synamic8G ensures minimal signal distortion and high reliability for fiber optic communications, especially in 400G/800G systems.

Manufacturing advantages of the Synamic8G PCB material

Choosing Shengyi Synamic8G laminate isn’t just about technical specs, it offers significant practical benefits for manufacturers:

High Heat Resistance

Synamic8G demonstrates excellent heat resistance, making it compatible with lead-free soldering processes and capable of enduring harsh operational conditions. Maintains dimensional and structural stability during assembly and reflow soldering processes.

Environmentally Safe

Its Halogen Free composition aligns with global environmental directives (RoHS, REACH, etc.) and corporate sustainability goals, reducing hazardous substances. Halogen-free formulation contributes to safer, more sustainable electronics manufacturing.

Cost-Effective and Readily Available

Offers a favorable balance of performance and procurement accessibility, making it a practical choice for both prototyping and volume production. Compared to more exotic high speed materials like PTFE or ceramic-filled composites, Synamic8G offers a cost-efficient alternative with comparable performance—making it ideal for medium to large-scale production.

Shengyi laminates offer a powerful combination of electrical performance, thermal resilience, and environmental compliance, making them a preferred material for ultra high speed networking, data center infrastructure, optical communications, and high performance computing. By choosing Synamic8G laminate, manufacturers can achieve superior performance, enhanced safety, and extended product lifetimes.

If you have any further questions, please feel free to leave a comment below or contact QFPCB by email ([email protected]).

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