AD350A is an exceptional printed circuit board (PCB) substrate material developed by Rogers. This composite material combines woven fiberglass reinforcement, ceramic fillers, and a PTFE-based composition, making it an ideal choice for applications that require high thermal conductivity and low coefficient of thermal expansion (CTE). AD350A is specifically designed to excel in high-power designs, even in extreme temperature conditions, making it an optimal solution for heat rejection scenarios.

Features

AD350A 30mil substrate PCB offers a range of impressive features, ensuring optimal performance in demanding applications:

1)Well controlled dielectric constant:

AD350A maintains a dielectric constant of 3.50 with a remarkable tolerance of -0.05 at 10 GHz and 23°C. This consistency ensures reliable signal transmission and impedance control, making it suitable for high-frequency applications.

2)Low loss tangent:

With a loss tangent of 0.0033 at 10 GHz and 23°C, AD350A minimizes signal loss and provides excellent electrical performance. This attribute is crucial for maintaining signal integrity in high-speed digital and RF applications.

3)High decomposition temperature:

AD350A exhibits a decomposition temperature (Td) exceeding 500°C. This exceptional thermal stability allows the PCB to withstand high-temperature environments and ensures reliable operation in demanding conditions.

4)Moisture absorption resistance:

AD350A demonstrates a moisture absorption rate of only 0.1%. This characteristic makes it highly suitable for applications exposed to humidity or moisture, maintaining its electrical performance and reliability.

5)Low CTE:

AD350A boasts a low coefficient of thermal expansion, with a CTE of 18 ppm/°C in the X and Y axes, and 63 ppm/°C in the Z-axis. This feature ensures dimensional stability and minimizes the risk of stress-induced failures, even in environments with significant temperature fluctuations.

6)Low PIM:

AD350A PCB exhibits low passive intermodulation (PIM) with values of -159/-163 dBC, reflected 43 dBm swept tones at 1900 MHz (S1/S1). This attribute is crucial for maintaining the integrity of signals in wireless communication systems and minimizing interference.

7)Time to Delamination:

AD350A offers excellent adhesion properties, with a time to delamination exceeding 60 minutes. This ensures superior plated through-hole (PTH) adhesion, enhancing the overall reliability of the PCB.

How does AD350A PCB compare to other PCB substrates?

AD350A Rogers RF PCB 30mil offers unique characteristics that differentiate it from other PCB substrates. Here's a comparison highlighting some key aspects:

1.Thermal Conductivity: AD350A PCB exhibits high thermal conductivity, enabling efficient heat dissipation. Compared to standard FR-4 PCBs, AD350A provides superior thermal management capabilities, making it suitable for high-power applications.

2.Dielectric Constant: AD350A PCB maintains a consistent dielectric constant of 3.50, which is lower than FR-4 PCBs. This characteristic ensures reliable signal transmission and impedance control, especially in high-frequency applications.

3.Loss Tangent: AD350A PCB demonstrates a low loss tangent, minimizing signal loss and preserving signal integrity. This attribute is particularly significant in high-speed digital and RF applications where low loss is essential.

4.Coefficient of Thermal Expansion (CTE): AD350A PCB has a low CTE, reducing the risk of stress-induced failures caused by temperature fluctuations. This makes it more dimensionally stable compared to materials like FR-4, which have higher CTE values.

5.Moisture Absorption: AD350A PCB exhibits low moisture absorption, making it suitable for applications exposed to humidity or moisture. Compared to materials like FR-4, AD350A maintains its electrical performance and reliability in such environments.

6.PIM Performance: AD350A PCB demonstrates low passive intermodulation (PIM), minimizing interference and maintaining signal integrity in wireless communication systems. This sets it apart from other PCB substrates that may have higher PIM values.

7.Thermal Stability: AD350A PCB possesses excellent thermal stability with a high decomposition temperature (Td) exceeding 500°C. This characteristic allows it to withstand high-temperature environments and ensures reliable operation.

8.Manufacturing Yield: AD350A PCB's consistent performance and excellent processability contribute to improved manufacturing yields. This can result in reduced scrap rates and enhanced production efficiency compared to PCB substrates that may be more challenging to manufacture.

It's important to note that the comparison between AD350A PCB and other substrates may vary depending on specific application requirements. Different substrates have their own strengths and are chosen based on factors such as cost, performance, electrical properties, and thermal management needs.

AD350A Benefits

Rogers AD350A PCB offers several benefits that contribute to its superior performance and reliability:

1)Superior heat dissipation:

AD350A's high thermal conductivity enables efficient heat dissipation, making it an ideal choice for applications that generate significant amounts of heat. It helps maintain optimal operating temperatures, prolonging the lifespan of components and ensuring reliable performance.

2)Consistent performance:

AD350A exhibits high consistency in its electrical and mechanical properties, ensuring predictable and repeatable circuit performance. This characteristic is vital for maintaining stable signal transmission and reducing manufacturing variations.

3)Mechanical durability:

AD350A maintains its mechanical form during handling and assembly processes. This attribute simplifies manufacturing and ensures that the PCB retains its structural integrity throughout its lifecycle.

4)Flame-retardant:

AD350A meets the UL 94-V0 flammability standard, offering excellent flame resistance. This feature enhances the safety and reliability of the PCB in applications where fire safety is critical.

5)Dimensional stability:

AD350A demonstrates excellent dimensional stability, minimizing any changes in size or shape caused by temperature variations. This ensures precise alignment and compatibility during assembly and reduces the risk of mechanical stress-induced failures.

6)Improved manufacturing yields:

AD350A's consistent performance and excellent processability contribute to improved manufacturing yields. It helps reduce scrap rates, lowers production costs, and enhances overall efficiency.

AD350A PCB Stackup and Construction Details

AD350A PCB is a 2 layer circuit board with the following stackup:

Copper layer 1: 35 μm

AD350A: 0.762 mm (30 mil)

Copper layer 2: 35 μm

The PCB's construction details are as follows:

Board dimensions: 111.56 mm x 58.26 mm (1 piece), with a tolerance of +/- 0.15 mm.

Minimum Trace/Space: AD350A supports a minimum trace width and spacing of 5/7 mils, ensuring compatibility with high-density circuit designs.

Minimum Hole Size: The PCB accommodates holes as small as 0.45 mm, enabling precise placement of components and supporting miniaturization efforts.

No Blind Vias: The design does not include blind vias, simplifying the manufacturing process and reducing costs.

Finished Board Thickness: The finished board thickness is 0.8 mm, providing a robust and reliable substrate for electronic components.

Finished Copper Weight: The outer layers have a finished copper weight of 1 oz (1.4 mils), ensuring optimal electrical conductivity.

Via Plating Thickness: The via plating thickness is 20 μm, facilitating reliable electricalconnectivity and efficient signal transmission.

Surface Finish: AD350A PCB utilizes immersion silver as the surface finish. This finish offers excellent solderability, corrosion resistance, and a flat surface for reliable component mounting.

Silkscreen and Solder Mask: The PCB does not include top or bottom silkscreen or solder mask. This simplifies the manufacturing process and reduces the overall cost.

Electrical Testing: Each AD350A PCB undergoes 100% electrical testing before shipment, ensuring that all circuits meet the specified requirements and perform reliably.

PCB Statistics

AD350A PCB boasts the following statistics:

Components: The PCB supports a total of 41 components, enabling the assembly of complex electronic systems.

Total Pads: There are 162 pads on the PCB, providing ample connectivity options for components.

Thru-Hole Pads: The PCB offers 79 thru-hole pads, accommodating components that require through-hole mounting.

Top SMT Pads: AD350A PCB provides 83 top surface mount technology (SMT) pads, allowing for efficient placement of surface-mounted components.

Bottom SMT Pads: The PCB does not include bottom SMT pads.

Vias: AD350A PCB features a total of 211 vias, enabling interconnection between different layers and enhancing the overall routing flexibility.

Nets: The PCB supports 2 nets, facilitating efficient signal routing and ensuring proper connectivity.

Artwork and Standards

AD350A high frequency PCB laminates accepts Gerber RS-274-X artwork, a widely used standard for PCB design data. It adheres to the IPC-Class-2 standard, ensuring high-quality manufacturing and reliable performance.

Availability

AD350A Rogers PCB material is available worldwide, allowing customers from various regions to benefit from its exceptional features and performance.

Typical Applications

Rogers AD350A PCB finds applications in various industries and scenarios where high thermal conductivity, low CTE, and reliable performance are crucial. Some typical applications include:

1.Cellular Infrastructure Base Station Antennas:

AD350A PCB enables efficient heat dissipation in base station antennas, ensuring reliable operation and enhanced signal transmission performance.

2.Automotive Telematics Antenna Systems:

AD350A offers superior thermal management capabilities in automotive telematics antenna systems, enabling reliable communication and improving overall system performance.

3.Commercial Satellite Radio Antennas:

AD350A PCB's low loss tangent and excellent dimensional stability make it an ideal choice for commercial satellite radio antennas, ensuring precise signal reception and transmission.

Conclusion

In conclusion, AD350A high frequency PCB stands out as a high-performance substrate material that excels in power designs and thermal management applications. With its controlled dielectric constant, low loss tangent, high decomposition temperature, and moisture absorption resistance, AD350A ensures reliable performance in challenging environments. Its benefits, such as superior heat dissipation, consistency, mechanical durability, and flame resistance, further enhance its appeal. With a 2-layer rigid stackup, precise construction details, and adherence to industry standards, AD350A PCB offers excellent processability and compatibility. Available worldwide, it serves as a reliable choice for various applications, including cellular infrastructure base station antennas, automotive telematics antenna systems, and commercial satellite radio antennas.