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Shengyi S7439G

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Shengyi S7439G PCB

In today’s fast-paced technological landscape, printed circuit boards (PCBs) play a pivotal role in powering our interconnected world. As electronic devices become more advanced and compact, the demand for high-performance PCB materials continues to soar.

Shengyi S7439G PCB Material is a high-performance substrate widely used in the electronics industry. This advanced material exhibits exceptional thermal, electrical, and mechanical properties, making it a preferred choice for demanding applications. Its low coefficient of thermal expansion, high decomposition temperature, and excellent processability make it suitable for high-temperature environments, such as high-performance computers, networking equipment, and industrial electronics.

In this article, we will explore the key features and benefits of Shengyi S7439G PCB Material, its manufacturing considerations, and its real-world applications. By understanding the unique characteristics of this material, engineers and manufacturers can make informed choices for their PCB designs, ensuring high reliability and optimal performance.

What is Shengyi S7439G PCB Material?

Shengyi S7439G is an advanced PCB material that boasts numerous advantages. It exhibits a low coefficient of thermal expansion along the Z-axis, making it highly suitable for applications with demanding thermal requirements. Additionally, the material offers excellent processability, allowing for efficient manufacturing processes. An impressive feature is its high decomposition temperature, surpassing 400 degrees Celsius, ensuring robust performance under elevated temperatures.

The Shengyi S7439G PCB material stands out with its elevated glass transition temperature, indicating its suitability for applications requiring resistance to high temperatures. Moreover, this lead-free material demonstrates low moisture absorption, contributing to enhanced reliability in humid environments. The material’s outstanding thermal reliability further solidifies its suitability for various demanding applications.

In terms of applications, the versatility of Shengyi S7439G is apparent. It finds utility in high-performance computing systems, as well as networking equipment encompassing switches, servers, routers, and line cards. With its exceptional characteristics, Shengyi S7439G enables the development of reliable and high-quality electronic products in a wide range of demanding scenarios.

What are the Properties of the Shengyi S7439G PCB Material?

Shengyi S7439G PCB material possesses several notable properties, including:

Low coefficient of thermal expansion (CTE): The material exhibits a low CTE along the Z-axis, making it suitable for applications with stringent thermal demands. This property helps minimize the risk of warping or delamination due to temperature variations.

Good processability: Shengyi S7439G offers excellent processability, allowing for efficient and reliable manufacturing processes. This characteristic simplifies the fabrication and assembly of PCBs using this material.

High decomposition temperature: With a decomposition temperature above 400 degrees Celsius, Shengyi S7439G is capable of withstanding elevated temperatures during various stages of PCB manufacturing and in demanding operating conditions. This property ensures the material’s stability and prevents premature degradation.

High glass transition temperature (Tg): The material possesses a high Tg, indicating its capability to withstand elevated temperatures without undergoing significant dimensional changes or loss of mechanical properties. This makes it suitable for applications requiring resistance to heat.

Lead-free: Shengyi S7439G is a lead-free material, complying with environmental regulations and offering a safer alternative to components containing lead.

Low moisture absorption: The material demonstrates low moisture absorption, reducing the risk of performance deterioration or electrical failures caused by exposure to moisture or humid environments. This property enhances the reliability and longevity of PCBs made with Shengyi S7439G.

Thermal reliability: Shengyi S7439G exhibits excellent thermal reliability, enabling it to withstand thermal cycling and other thermal stresses commonly encountered in electronic systems. This property enhances the overall performance and durability of PCBs operating under demanding conditions.

These properties collectively contribute to the suitability of Shengyi S7439G for high-performance applications such as computers, networking equipment, and line cards, where reliability, thermal performance, and processability are crucial factors.

Why Choose the Shengyi S7439G PCB Material?

When considering PCB materials for your project, there are several reasons why you may choose the Shengyi S7439G PCB material:

Cost-Effectiveness: Shengyi S7439G is an epoxy-based FR-4 material, which is known for its cost-effectiveness. It offers a good balance between performance and affordability, making it suitable for a wide range of applications where budget constraints are a consideration.

Electrical Insulation: The Shengyi S7439G material provides excellent electrical insulation properties, ensuring reliable isolation between circuitry and preventing electrical shorts or interference. This is crucial for maintaining signal integrity and minimizing the risk of electrical failures.

Mechanical Strength: The S7439G material offers good mechanical strength, making it suitable for applications where the PCB may experience mechanical stress, such as in portable electronic devices or industrial equipment. It can withstand handling, assembly processes, and environmental factors that could potentially cause damage to the PCB.

Flame Retardancy: Shengyi S7439G possesses flame retardant properties, which is essential for applications where safety is a priority. It meets industry standards for flame resistance, reducing the risk of fire or spreading of flames in case of a malfunction or external heat source.

Availability and Reliability: Shengyi is a well-established and reputable PCB material manufacturer, ensuring the availability and reliability of the S7439G material. This means you can expect consistent quality, supply chain stability, and technical support throughout your project.

Compatibility: The Shengyi S7439G material is compatible with common PCB manufacturing processes, such as drilling, plating, and soldering. It can be easily integrated into standard PCB production workflows, reducing potential complications during fabrication.

Wide Range of Applications: The Shengyi S7439G material is suitable for a variety of applications, from consumer electronics to automotive, telecommunications, industrial equipment, and more. Its versatility makes it a popular choice for general-purpose PCB designs.

Ultimately, the choice of PCB material depends on your specific project requirements, such as electrical performance, thermal management, budget, and industry standards. Shengyi S7439G offers a cost-effective and reliable option with good electrical insulation, mechanical strength, and flame retardancy, making it a viable choice for many applications.

Manufacturing and Processing Considerations for Shengyi S7045G PCB Materials

When working with Shengyi S7439G PCB materials, it is important to consider various manufacturing and processing considerations to ensure optimal results. Here are some key considerations:

PCB Design:

Start by carefully designing the PCB layout, taking into account thermal management, signal integrity, and electrical performance requirements. Consider the material’s properties, such as its low coefficient of thermal expansion (CTE) and high decomposition temperature, to minimize the risk of thermal stress and maximize stability.

Material Preparation:

Proper storage and handling of the Shengyi S7439G material are crucial to maintain its properties. Store the material in a controlled environment to prevent moisture absorption, which can affect its performance.

Drilling and Machining:

Shengyi S7439G is typically drillable and machinable using standard PCB fabrication techniques. Use appropriate cutting tools and machining parameters to achieve clean cuts and avoid overheating the material. Consider the material’s rigidity and stability during drilling to reduce the risk of burrs or delamination.

Plating and Surface Finishes:

Shengyi S7439G is compatible with common PCB plating processes such as electroless copper deposition and immersion gold or tin finishes. Follow industry best practices for plating processes to ensure good adhesion and reliability.

Solder Mask and Silkscreen Printing:

Apply appropriate solder mask and silkscreen printing techniques suitable for the Shengyi S7439G material. Ensure compatibility between the material and the chosen solder mask and ink systems to achieve good adhesion and legibility.

Assembly and Soldering:

Shengyi S7439G is suitable for standard assembly and soldering processes. However, it is important to optimize the reflow profile and ensure that the material can withstand the temperatures in the soldering process without compromising its thermal reliability or dimensional stability. Consider the material’s high decomposition temperature and select solder alloys compatible with the material.

Quality Control and Testing:

Perform rigorous quality control and testing throughout the manufacturing process to ensure that the final PCBs meet the required specifications. Conduct checks for dimensional accuracy, electrical continuity, impedance control, and other relevant parameters.

Handling and Packaging:

Handle the finished PCBs with care to avoid damage and maintain their integrity. Properly package the PCBs to protect them from moisture, dust, and other potential contaminants.

Shengyi S7439G PCB Materials Comparison with Other PCB Materials

Shengyi S7439G is a type of PCB material that belongs to the epoxy-based FR-4 (Flame Retardant 4) family. To provide a comprehensive comparison, let’s consider Shengyi S7439G in comparison with other common PCB materials:

FR-4 (Standard Epoxy-based):

FR-4 is the most widely used PCB material due to its cost-effectiveness and versatile properties. It offers good electrical insulation, mechanical strength, and flame retardancy. Shengyi S7439G, being an FR-4 material, shares these characteristics and is suitable for a wide range of applications.

High-Tg FR-4:

High-Tg (Glass Transition Temperature) FR-4 materials have an increased Tg value, which refers to the temperature at which the material transitions from a rigid to a soft state. This makes them more resistant to heat and offers improved dimensional stability. Shengyi S7439G may have a specific Tg rating, and if it is a high-Tg variant, it would exhibit similar benefits.

RF/Microwave Materials:

RF/Microwave materials are designed specifically for high-frequency applications. These materials have low dielectric loss, low dispersion, and excellent signal integrity at high frequencies. Shengyi S7439G is not specifically designed for RF/Microwave applications and may not offer the same level of performance in terms of signal loss and dispersion at high frequencies.

Polyimide (PI):

Polyimide materials are known for their excellent thermal stability, high-temperature resistance, and low outgassing properties. They are commonly used in flexible PCBs and applications where extreme temperature conditions are encountered. Shengyi S7439G, being an FR-4 material, does not possess the same level of thermal stability and high-temperature resistance as polyimide materials.

Metal Core PCB (MCPCB):

Metal Core PCBs utilize a metal core, typically aluminum or copper, for enhanced heat dissipation. They are commonly used in applications that require efficient thermal management, such as power electronics and LED lighting. Shengyi S7439G, as an FR-4 material, does not provide the same level of thermal conductivity as metal core materials.

Real-world Applications of Shengyi S7439G PCB Materials

Shengyi S7439G PCB material finds applications in various demanding electronic systems, including:

High-performance computers: The material’s properties, such as low thermal expansion and high decomposition temperature, make it suitable for use in high-performance computing systems. These systems often generate significant heat, and Shengyi S7439G can handle the thermal demands while maintaining stability and reliability.

Networking equipment: Shengyi S7439G is well-suited for networking equipment like switches, servers, and routers. These components require robust PCB materials that can withstand high temperatures, offer excellent thermal reliability, and provide reliable electrical performance.

Line cards: Line cards in networking and telecommunications equipment benefit from the properties of Shengyi S7439G. Its low CTE helps maintain the integrity of signal transmission on densely populated boards, reducing the risk of signal loss or performance degradation.

Industrial electronics: In industrial environments, where electronic systems may be exposed to elevated temperatures, Shengyi S7439G can be utilized in applications such as process control systems, automation equipment, and power electronics modules.

Automotive electronics: The material’s high decomposition temperature and thermal reliability make it suitable for automotive electronics applications. Shengyi S7439G can handle the temperature fluctuations and harsh operating conditions found in automotive environments.

It’s important to note that the suitability of Shengyi S7439G for specific applications may vary based on device-specific requirements, design considerations, and industry standards.


Shengyi S7439G PCB Material is a versatile and reliable substrate that plays a crucial role in today’s electronics industry. With its exceptional thermal stability, excellent electrical performance, and robust mechanical properties, Shengyi S7439G is well-suited for a wide range of applications.

By leveraging its low coefficient of thermal expansion, high decomposition temperature, and compatibility with standard manufacturing processes, designers and manufacturers can confidently develop and fabricate high-quality PCBs for various industries, including computer systems, networking infrastructure, and industrial automation.

As technology continues to advance, Shengyi S7439G PCB Material remains a trusted and dependable option for meeting the demanding requirements of modern electronic systems. By harnessing the benefits of Shengyi S7439G, engineers can ensure the reliability, performance, and longevity of their electronic designs in an ever-evolving technological landscape.

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