FR408HR PCB Isola 2.0mm Thick 4-layer Multilayer High TG Material Circuit Board

FR408HR PCB Isola 2.0mm Thick 4-layer Multilayer High TG Material Circuit Board

Introduction

The FR408HR PCB is an advanced high-performance printed circuit board designed for multilayer applications that require superior thermal performance and reliability. Manufactured using Isola's patented high-performance multifunctional resin system, the FR408HR laminate and prepreg products offer exceptional thermal and electrical properties. With a Tg (DMA) of 230°C, this FR-4 resin system is specifically engineered to meet the demands of high-temperature environments. The FR408HR PCB bridges the gap between thermal and electrical performance, making it an ideal choice for a wide range of applications.

FR408HR Features

The FR408HR PCB is packed with features that contribute to its outstanding performance:

1.Dielectric Constant (Dk):

The PCB exhibits a Dk of 3.65 at 10GHz, providing excellent signal integrity and minimizing signal loss.

2.Dissipation Factor:

With a dissipation factor of 0.0095 at 10GHz, the FR408HR PCB ensures efficient signal transmission with minimal distortion.

3.Coefficient of Thermal Expansion (CTE):

The CTE values of 16 ppm/°C for both the x-axis and y-axis ensure excellent dimensional stability and compatibility with copper, reducing the risk of mechanical stress and failure.

4.Thermal Stability:

The FR408HR PCB offers a Tg (DSC) of 190°C, ensuring reliable operation in high-temperature environments. It also demonstrates excellent thermal performance with T260>60 min and T288>30 min.

5.Decomposition Temperature (Td):

The Td of 360°C (TGA) indicates the PCB's ability to withstand high temperatures without significant degradation.

FR408HR Benefits

The FR408HR PCB provides several benefits that enhance its usability and reliability:

1.Lead-Free Assembly Compatibility:

The PCB is suitable for lead-free assembly processes, meeting industry standards and regulations.

2.Via Filling Capability:

The FR408HR PCB supports via filling, allowing for improved electrical connections and increased reliability.

3.CAF Resistance:

The PCB is highly resistant to Conductive Anodic Filament (CAF) growth, ensuring long-term reliability in challenging environments.

4.Multiple Lamination Cycles:

The FR408HR laminate and prepreg products can withstand multiple lamination cycles, enabling flexibility in the manufacturing process.

5.RoHS Compliant:

The PCB is RoHS compliant, ensuring it meets environmental standards and regulations.

6.Moisture Resistance:

What is the difference between FR-4 and FR408HR?

The FR408HR PCB demonstrates superior moisture resistance during the reflow process, maintaining its reliability and performance in humid conditions.

R-4 and FR408HR are both types of printed circuit board (PCB) materials, but they have some key differences in terms of their composition, performance characteristics, and applications. Here are the main differences between FR-4 and FR408HR:

Resin System:

FR-4: FR-4 is a widely used PCB material that stands for Flame Retardant 4. It is a glass-reinforced epoxy laminate material, with a resin system typically based on epoxy or phenolic.

FR408HR: FR408HR, on the other hand, is a specific type of high-performance FR-4 material. It features Isola's patented high-performance multifunctional resin system, which is specifically formulated to provide superior thermal performance and reliability.

Thermal Performance:

FR-4: Standard FR-4 materials have a lower glass transition temperature (Tg) compared to FR408HR. The Tg of FR-4 typically ranges from around 130°C to 180°C, depending on the specific grade.

FR408HR: FR408HR is designed to have a higher Tg (DMA) of 230°C, making it more suitable for applications that require enhanced thermal performance and can withstand higher operating temperatures.

Electrical Performance:

FR-4: FR-4 materials offer good electrical properties and are widely used in various electronic applications. They typically have a moderate dielectric constant (Dk) and dissipation factor (Df) that are suitable for general-purpose PCB designs.

FR408HR: FR408HR is designed to provide improved electrical performance compared to standard FR-4 materials. It offers a Dk of 3.65 at 10GHz and a low dissipation factor of 0.0095 at 10GHz. These characteristics contribute to better signal integrity and lower signal losses, making FR408HR suitable for high-frequency applications.

Moisture Resistance:

FR-4: Standard FR-4 materials can be susceptible to moisture absorption, which can affect their electrical and mechanical properties. They may require additional protective measures, such as conformal coating or the use of moisture-resistant prepregs, in humid or harsh environments.

FR408HR: FR408HR is specifically designed to offer superior moisture resistance, particularly during the reflow process. This property helps maintain the PCB's reliability and performance, even in high-humidity conditions.

Applications:

FR-4: FR-4 is a versatile PCB material widely used in numerous applications across various industries. It is commonly found in consumer electronics, automotive systems, industrial equipment, telecommunications, and more.

FR408HR: FR408HR is particularly suited for applications where maximum thermal performance and reliability are required. It finds applications in industries such as high-performance computing, server and workstation systems, automotive electronics, and other applications that operate in demanding environments.

In summary, while both FR-4 and FR408HR are PCB materials, FR408HR is a specialized high-performance FR-4 material that offers enhanced thermal and electrical properties compared to standard FR-4. It provides higher Tg, improved electrical characteristics, and superior moisture resistance, making it suitable for applications that demand exceptional performance and reliability in challenging operating conditions.

FR408HR PCB Stackup and Construction Details

The FR408HR PCB features a 4-layer rigid construction, providing a balanced combination of performance and ease of manufacturing. The stackup consists of the following layers:

Top Layer 1: 35 μm copper thickness

Prepreg: 152 μm

Copper Layer Inner 1: 35 μm copper thickness

FR408HR Core: 1.535 mm thickness

Copper Layer Inner 2: 35 μm copper thickness

Prepreg: 152 μm

Bottom Layer: 35 μm copper thickness

The board dimensions are precisely maintained at 170mm x 130mm (+/- 0.15mm), offering a standard form factor suitable for various applications. The FR408HR PCB supports a minimum trace and space of 4/5 mils, enabling intricate and precise routing. The minimum hole size is 0.3mm, providing flexibility in component placement and assembly.

To ensure optimal performance and reliability, the FR408HR PCB undergoes a series of manufacturing processes and quality control measures. It features a finished board thickness of 2.0mm, with 1oz (1.4 mils) outer layers for balanced copper distribution. The via plating thickness is 20 μm, ensuring reliable electrical connections. The surface finish is achieved through Immersion Gold, which offers excellent solderability and protection against oxidation. The PCB includes a top silkscreen in white and red solder mask on both the top and bottom layers. Additionally, the via-in-pad technology is implemented, with filled and capped vias. A thorough 100% electrical test is conducted prior to shipment to guarantee the highest level of quality.

PCB Statistics:

The FR408HR PCB supports a wide range of components and offers the following statistics:

Components: 270

Total Pads: 320

Thru-Hole Pads: 150

Top SMT Pads: 99

Bottom SMT Pads: 71

Vias: 78

Nets: 6

Artwork and Quality Standard

The FR408HR PCB is manufactured using Gerber RS-274-X artwork, ensuring compatibility and ease of integration with standard design tools and workflows. It adheres to the IPC-Class-2 quality standard, guaranteeing consistent high-quality production and reliability.

Availability and Typical Applications

The FR408HR PCB is available worldwide, catering to the needs of various industries and applications. Some typical applications of the FR408HR PCB include:

Consumer Electronics:

The FR408HR PCB is well-suited for consumer electronic devices that require high-performance and reliable circuitry. It can be utilized in smartphones, tablets, gaming consoles, smart home devices, and other consumer electronic products.

Server and Workstation:

The robust thermal performance and reliability of the FR408HR PCB make it an ideal choice for server and workstation applications. It can handle the demanding requirements of high-performance computing, data centers, and server infrastructure.

Automotive:

The automotive industry demands PCBs that can withstand harsh environmental conditions and deliver exceptional performance. The FR408HR PCB meets these requirements, making it suitable for automotive applications such as engine control units, infotainment systems, advanced driver-assistance systems (ADAS), and more.

Conclusion

The FR408HR PCB offers a comprehensive solution for applications that require maximum thermal performance and reliability. With its high Tg, exceptional electrical properties, and moisture resistance, it bridges the gap between thermal and electrical performance. The FR408HR PCB's lead-free assembly compatibility, via filling capability, CAF resistance, and multiple lamination cycles further enhance its usability and reliability. With a worldwide availability and adherence to industry standards, the FR408HR PCB is an excellent choice for various industries, including consumer electronics, server and workstation, and automotive sectors. Trust the FR408HR PCB to deliver superior performance, durability, and peace of mind in your electronic designs.